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ACZ Laboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020 ACZ Project ID: L57285 Kent Applegate February 19, 2020 Project ID: 4508122295 Report to: cc: Clark Short, Angela Persico, Michaella Gorospe, jcarroll Kent Applegate: Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on February 06, 2020. This project has been assigned to ACZ' s project number, L57285. Please reference this number in all future inquiries. All analyses were performed according to ACZ' s Quality Assurance Plan. The enclosed results relate only to the samples received under L57285. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute. Except as noted, the test results for the methods and parameters listed on ACZ' s current NELAC certificate letter (#ACZ) meet all requirements of NELAC. This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report. All samples and sub-samples associated with this project will be disposed of after March 20, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ' s stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years. If you have any questions or other needs, please contact your Project Manager. Rio Algom Mining Company P.O. Box 218 Grants, NM 87020 Accounts Payable Bill to: Page 1 of 18 L57285-2002190702
Transcript
Page 1: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L57285

Kent Applegate

February 19, 2020

Project ID: 4508122295

Report to:

cc: Clark Short, Angela Persico, Michaella Gorospe, jcarroll

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on February 06, 2020. This project has been assigned to ACZ's project number, L57285. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L57285. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute.

Except as noted, the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ) meet all requirements of NELAC.

This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report.

All samples and sub-samples associated with this project will be disposed of after March 20, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ's stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 18L57285-2002190702

Page 2: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-01

Sample ID: AW-1

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/03/20 12:28

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 669 mg/L 3 kja0.5* 02/12/20 10:175

Magnesium, dissolved M200.7 ICP 576 mg/L 5 kja1 02/12/20 10:175

Potassium, dissolved M200.7 ICP 8 mg/L 5 kja1 02/12/20 10:175

Sodium, dissolved M200.7 ICP 631 mg/L 5 kja1 02/12/20 10:175

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 703 mg/L 20 ttg5* 02/17/20 10:2910

Conductivity @25C SM2510B 7360 umhos/cm 10 eep1 02/08/20 20:081

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 6.7 mg/L 0.5 pjb0.1 02/15/20 1:125

Residue, Filterable (TDS) @180C

SM2540C 7070 mg/L 80 jck40 02/06/20 17:412

Sulfate D516-02/-07/-11 - Turbidimetric 3420 mg/L 600 wtc120* 02/12/20 14:15120

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 18L57285-2002190702

Page 3: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-02

Sample ID: 30-04 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/03/20 13:04

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 569 mg/L 3 kja0.5* 02/12/20 10:215

Magnesium, dissolved M200.7 ICP 413 mg/L 5 kja1 02/12/20 10:215

Potassium, dissolved M200.7 ICP 9 mg/L 5 kja1 02/12/20 10:215

Sodium, dissolved M200.7 ICP 533 mg/L 5 kja1 02/12/20 10:215

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 643 mg/L 20 ttg5* 02/17/20 10:3610

Conductivity @25C SM2510B 6170 umhos/cm 10 eep1 02/08/20 20:201

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 8.23 mg/L 0.4 pjb0.08 02/15/20 1:194

Residue, Filterable (TDS) @180C

SM2540C 5530 mg/L 80 mlh40 02/10/20 10:342

Sulfate D516-02/-07/-11 - Turbidimetric 2720 mg/L 500 wtc100* 02/12/20 14:15100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 18L57285-2002190702

Page 4: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-03

Sample ID: 32-41

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/03/20 14:12

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 189 mg/L 1 kja0.2* 02/12/20 10:242

Magnesium, dissolved M200.7 ICP 146 mg/L 2 kja0.4 02/12/20 10:242

Potassium, dissolved M200.7 ICP 8.1 mg/L 2 kja0.4 02/12/20 10:242

Sodium, dissolved M200.7 ICP 242 mg/L 2 kja0.4 02/12/20 10:242

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 1070 mg/L 100 ttg30* 02/17/20 10:4250

Conductivity @25C SM2510B 4640 umhos/cm 10 eep1 02/08/20 20:341

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.06 mg/L 0.1B pjb0.02 02/15/20 1:211

Residue, Filterable (TDS) @180C

SM2540C 3030 mg/L 40 jck20 02/06/20 17:501

Sulfate D516-02/-07/-11 - Turbidimetric 1030 mg/L 200 wtc40* 02/12/20 14:1340

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 18L57285-2002190702

Page 5: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-04

Sample ID: 32-02 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/03/20 15:10

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 551 mg/L 3 kja0.5* 02/12/20 10:335

Magnesium, dissolved M200.7 ICP 683 mg/L 5 kja1 02/12/20 10:335

Potassium, dissolved M200.7 ICP 10 mg/L 5 kja1 02/12/20 10:335

Sodium, dissolved M200.7 ICP 733 mg/L 5 kja1 02/12/20 10:335

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 708 mg/L 20 ttg5* 02/17/20 10:3610

Conductivity @25C SM2510B 7980 umhos/cm 10 eep1* 02/08/20 20:361

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 7.18 mg/L 0.4 pjb0.08 02/15/20 1:234

Residue, Filterable (TDS) @180C

SM2540C 7640 mg/L 80 jck40 02/06/20 17:532

Sulfate D516-02/-07/-11 - Turbidimetric 3320 mg/L 500 ttg100* 02/14/20 13:33100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 5 of 18L57285-2002190702

Page 6: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-05

Sample ID: 32-50 TRB-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/03/20 15:55

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 551 mg/L 3 kja0.5* 02/12/20 10:375

Magnesium, dissolved M200.7 ICP 417 mg/L 5 kja1 02/12/20 10:375

Potassium, dissolved M200.7 ICP 4 mg/L 5B kja1 02/12/20 10:375

Sodium, dissolved M200.7 ICP 643 mg/L 5 kja1 02/12/20 10:375

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 628 mg/L 20 ttg5* 02/17/20 10:3610

Conductivity @25C SM2510B 6480 umhos/cm 10 eep1 02/08/20 20:381

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 5.52 mg/L 0.3 pjb0.06 02/15/20 1:243

Residue, Filterable (TDS) @180C

SM2540C 5830 mg/L 80 mlh40 02/10/20 10:382

Sulfate D516-02/-07/-11 - Turbidimetric 2610 mg/L 500 ttg100* 02/14/20 13:33100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 6 of 18L57285-2002190702

Page 7: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-06

Sample ID: 32-52

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/05/20 10:08

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 370 mg/L 1 kja0.2* 02/12/20 10:402

Magnesium, dissolved M200.7 ICP 100 mg/L 2 kja0.4 02/12/20 10:402

Potassium, dissolved M200.7 ICP 1.7 mg/L 2B kja0.4 02/12/20 10:402

Sodium, dissolved M200.7 ICP 525 mg/L 2 kja0.4 02/12/20 10:402

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 229 mg/L 20 ttg5* 02/17/20 10:3610

Conductivity @25C SM2510B 4040 umhos/cm 10 eep1* 02/08/20 20:401

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02 02/15/20 0:541

Residue, Filterable (TDS) @180C

SM2540C 3440 mg/L 40 jck20 02/06/20 17:581

Sulfate D516-02/-07/-11 - Turbidimetric 1890 mg/L 250 ttg50* 02/14/20 13:2950

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 7 of 18L57285-2002190702

Page 8: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-07

Sample ID: AW-2

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/05/20 11:04

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 659 mg/L 3 kja0.5* 02/12/20 10:435

Magnesium, dissolved M200.7 ICP 198 mg/L 5 kja1 02/12/20 10:435

Potassium, dissolved M200.7 ICP 4 mg/L 5B kja1 02/12/20 10:435

Sodium, dissolved M200.7 ICP 704 mg/L 5 kja1 02/12/20 10:435

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 321 mg/L 20 ttg5* 02/17/20 10:3610

Conductivity @25C SM2510B 5830 umhos/cm 10 eep1 02/08/20 20:421

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 5.52 mg/L 0.3 pjb0.06 02/15/20 1:253

Residue, Filterable (TDS) @180C

SM2540C 5380 mg/L 80 jck40 02/06/20 18:012

Sulfate D516-02/-07/-11 - Turbidimetric 2530 mg/L 500 ttg100* 02/14/20 13:33100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 8 of 18L57285-2002190702

Page 9: ACZ Laboratories, Inc.

ACZ Sample ID: L57285-08

Sample ID: 32-51

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/05/20 12:09

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 522 mg/L 3 kja0.5* 02/12/20 10:465

Magnesium, dissolved M200.7 ICP 310 mg/L 5 kja1 02/12/20 10:465

Potassium, dissolved M200.7 ICP 2 mg/L 5B kja1 02/12/20 10:465

Sodium, dissolved M200.7 ICP 424 mg/L 5 kja1 02/12/20 10:465

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 429 mg/L 20 ttg5* 02/17/20 10:3710

Conductivity @25C SM2510B 5140 umhos/cm 10 eep1* 02/08/20 20:441

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.53 mg/L 0.1 pjb0.02 02/15/20 1:011

Residue, Filterable (TDS) @180C

SM2540C 4840 mg/L 80 jck40 02/06/20 18:042

Sulfate D516-02/-07/-11 - Turbidimetric 2280 mg/L 500 ttg100* 02/14/20 13:35100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 9 of 18L57285-2002190702

Page 10: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U The material was analyzed for, but was not detected above the level of the associated value.

The associated value is either the sample quantitation limit or the sample detection limit.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP001.03.15.02

Inorganic

Reference

Page 10 of 18L57285-2002190702

Page 11: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57285Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491584

WG491584ICV 02/12/20 8:57 99ICV II200210-2 99.1 95 105mg/L100

WG491584ICB 02/12/20 9:03ICB U -0.3 0.3mg/L

WG491584LFB 02/12/20 9:16 99LFB II200203-2 67.16 85 115mg/L68.00334

L57251-04AS M302/12/20 10:08 246 81AS II200203-2 300.9 85 115mg/L68.00334

L57251-04ASD M302/12/20 10:11 246 81ASD II200203-2 300.8 085 115mg/L 2068.00334

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491866

WG491866ICB 02/17/20 9:46ICB U -1.5 1.5mg/L

WG491866ICV 02/17/20 9:46 102ICV WI190501-1 55.82 90 110mg/L54.835

WG491866LFB1 02/17/20 10:19 108LFB WI190812-3 32.28 90 110mg/L30

L53537-30AS 02/17/20 10:19 U 103AS WI190812-3 31 90 110mg/L30

L53539-30DUP RA02/17/20 10:19 UDUP U 0mg/L 20

WG491866LFB2 02/17/20 10:23 107LFB WI190812-3 32.11 90 110mg/L30

L57285-06AS M302/17/20 10:36 229 77AS 10XCL 252.2 90 110mg/L30

L57285-07DUP 02/17/20 10:37 321DUP 320.6 0mg/L 20

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491480

WG491480LCSW2 02/08/20 15:05 102LCSW PCN60028 1440 90 110umhos/cm1408

WG491480LCSW5 02/08/20 18:25 102LCSW PCN60028 1430 90 110umhos/cm1408

L57285-02DUP 02/08/20 20:32 6170DUP 6170 0umhos/cm 20

L57294-03DUP 02/08/20 21:33 4330DUP 4310 0umhos/cm 20

WG491480LCSW8 02/08/20 21:39 101LCSW PCN60028 1420 90 110umhos/cm1408

WG491480LCSW11 02/09/20 1:09 101LCSW PCN60028 1420 90 110umhos/cm1408

WG491480LCSW14 02/09/20 3:47 100LCSW PCN60028 1410 90 110umhos/cm1408

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491584

WG491584ICV 02/12/20 8:57 97ICV II200210-2 97.45 95 105mg/L100

WG491584ICB 02/12/20 9:03ICB U -0.6 0.6mg/L

WG491584LFB 02/12/20 9:16 95LFB II200203-2 47.27 85 115mg/L49.99771

L57251-04AS 02/12/20 10:08 46.1 95AS II200203-2 93.84 85 115mg/L49.99771

L57251-04ASD 02/12/20 10:11 46.1 96ASD II200203-2 94.03 085 115mg/L 2049.99771

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491841

WG491841ICV 02/14/20 22:57 99ICV WI200213-7 2.389 90 110mg/L2.416

WG491841ICB 02/14/20 22:58ICB U -0.02 0.02mg/L

WG491843

WG491843LFB 02/15/20 0:44 103LFB WI191004-3 2.052 90 110mg/L2

L57285-01AS 02/15/20 1:18 6.7 103AS WI191004-3 17 90 110mg/L10

L57285-02DUP 02/15/20 1:20 8.23DUP 8.248 0mg/L 20

Page 11 of 18L57285-2002190702

Page 12: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57285Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491584

WG491584ICV 02/12/20 8:57 98ICV II200210-2 19.58 95 105mg/L20

WG491584ICB 02/12/20 9:03ICB U -0.6 0.6mg/L

WG491584LFB 02/12/20 9:16 95LFB II200203-2 95.11 85 115mg/L99.95798

L57251-04AS 02/12/20 10:08 3.1 101AS II200203-2 104.1 85 115mg/L99.95798

L57251-04ASD 02/12/20 10:11 3.1 102ASD II200203-2 105.3 185 115mg/L 2099.95798

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491409

WG491409PBW 02/06/20 17:05PBW U -40 40mg/L

WG491409LCSW 02/06/20 17:07 102LCSW PCN60403 986 80 120mg/L963

L57285-01DUP 02/06/20 17:44 7070DUP 7140 1mg/L 10

L57285-08DUP 02/06/20 18:07 4840DUP 4790 1mg/L 10

WG491512

WG491512PBW 02/10/20 10:18PBW U -40 40mg/L

WG491512LCSW 02/10/20 10:21 103LCSW PCN60403 992 80 120mg/L963

L57317-01DUP 02/10/20 10:58 3680DUP 3550 4mg/L 10

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491584

WG491584ICV 02/12/20 8:57 99ICV II200210-2 98.9 95 105mg/L100

WG491584ICB 02/12/20 9:03ICB U -0.6 0.6mg/L

WG491584LFB 02/12/20 9:16 96LFB II200203-2 95.82 85 115mg/L100.0046

L57251-04AS 02/12/20 10:08 62 98AS II200203-2 159.8 85 115mg/L100.0046

L57251-04ASD 02/12/20 10:11 62 99ASD II200203-2 161 185 115mg/L 20100.0046

Sulfate D516-02/-07/-11 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491671

WG491671ICB 02/12/20 9:07ICB U -3 3mg/L

WG491671ICV 02/12/20 9:07 97ICV WI200204-3 19.3 90 110mg/L20

WG491671LFB 02/12/20 12:17 97LFB WI190801-3 9.7 90 110mg/L10.01

L57285-03DUP 02/12/20 14:13 1030DUP 1040 1mg/L 20

L57285-02AS M302/12/20 14:15 2720 -2800AS SO4TURB 2440 90 110mg/L10

WG491814

WG491814ICB 02/14/20 13:05ICB U -3 3mg/L

WG491814ICV 02/14/20 13:05 96ICV WI200204-3 19.2 90 110mg/L20

WG491814LFB 02/14/20 13:14 101LFB WI190801-3 10.1 90 110mg/L10.01

L57138-02DUP RA02/14/20 13:14 UDUP U 0mg/L 20

L57139-02AS M302/14/20 13:29 244 30AS SO4TURB20X 247 90 110mg/L10

Page 12 of 18L57285-2002190702

Page 13: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57285Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915841L57285-01

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG491866

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491671

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915842L57285-02

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG491866

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491671

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915843L57285-03

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG491866

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491671

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915844L57285-04

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG491866

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG491480

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491814

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07/-11 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915845L57285-05

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491866

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491814

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07/-11 - Turbidimetric

REPAD.15.06.05.01

Page 13 of 18L57285-2002190702

Page 14: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57285Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915846L57285-06

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491866

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG491480

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491814

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07/-11 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915847L57285-07

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491866

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491814

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07/-11 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4915848L57285-08

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491866

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG491480

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491814

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07/-11 - Turbidimetric

REPAD.15.06.05.01

Page 14 of 18L57285-2002190702

Page 15: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L57285Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 15 of 18L57285-2002190702

Page 16: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/06/2020 11:30

L57285

Date Printed: 2/7/2020

Chain of Custody Related Remarks

Client Contact Remarks

The 'Relinquished By' field on the COC was not completed. The project manager is contacting the client.

NANOYES

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received

A change was made in the Sample ID Lines 9 and 10 section prior

to ACZ custody.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

6673 0.4 <=6.0 15 Yes

6211 0.8 <=6.0 15 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 16 of 18L57285-2002190702

Page 17: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/06/2020 11:30

L57285

Date Printed: 2/7/2020

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 17 of 18L57285-2002190702

Page 18: ACZ Laboratories, Inc.

Page 18 of 18L57285-2002190702

Page 19: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L57320

Kent Applegate

February 20, 2020

Project ID: 4508122295

Report to:

cc: Clark Short, Angela Persico, Michaella Gorospe, jcarroll

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on February 08, 2020. This project has been assigned to ACZ's project number, L57320. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L57320. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute.

Except as noted, the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ) meet all requirements of NELAC.

This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report.

All samples and sub-samples associated with this project will be disposed of after March 21, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ's stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 17L57320-2002201343

Page 20: ACZ Laboratories, Inc.

ACZ Sample ID: L57320-01

Sample ID: 32-58

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/06/20 11:24

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 643 mg/L 5 jlw1* 02/13/20 20:3610

Magnesium, dissolved M200.7 ICP 1720 mg/L 10 jlw2 02/13/20 20:3610

Potassium, dissolved M200.7 ICP mg/L 10U jlw2 02/13/20 20:3610

Sodium, dissolved M200.7 ICP 1760 mg/L 10 jlw2 02/13/20 20:3610

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 3350 mg/L 100 ttg30* 02/17/20 12:3550

Conductivity @25C SM2510B 17300 umhos/cm 10 eep1 02/13/20 5:141

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 65 mg/L 5 pjb1* 02/19/20 1:0250

Residue, Filterable (TDS) @180C

SM2540C 15100 mg/L 200 jck100 02/12/20 16:155

Sulfate D516-02/-07/-11 - Turbidimetric 6090 mg/L 1000 ttg200* 02/18/20 11:16200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 17L57320-2002201343

Page 21: ACZ Laboratories, Inc.

ACZ Sample ID: L57320-02

Sample ID: 32-72

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/06/20 13:42

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 433 mg/L 5 jlw1* 02/13/20 20:3910

Magnesium, dissolved M200.7 ICP 2810 mg/L 10 jlw2 02/13/20 20:3910

Potassium, dissolved M200.7 ICP 23 mg/L 10 jlw2 02/13/20 20:3910

Sodium, dissolved M200.7 ICP 345 mg/L 10 jlw2 02/13/20 20:3910

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 142 mg/L 20 ttg5* 02/17/20 12:0910

Conductivity @25C SM2510B 12800 umhos/cm 10 emk1 02/17/20 15:591

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02* 02/19/20 0:581

Residue, Filterable (TDS) @180C

SM2540C 15900 mg/L 200 mlh100 02/10/20 11:155

Sulfate D516-02/-07/-11 - Turbidimetric 11200 mg/L 2000 ttg400* 02/18/20 11:40400

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 17L57320-2002201343

Page 22: ACZ Laboratories, Inc.

ACZ Sample ID: L57320-03

Sample ID: 30-47

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/06/20 15:39

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 399 mg/L 1 jlw0.2* 02/13/20 20:422

Magnesium, dissolved M200.7 ICP 159 mg/L 2 jlw0.4 02/13/20 20:422

Potassium, dissolved M200.7 ICP 7.0 mg/L 2 jlw0.4 02/13/20 20:422

Sodium, dissolved M200.7 ICP 221 mg/L 2 jlw0.4 02/13/20 20:422

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 730 mg/L 20 ttg5* 02/17/20 12:1510

Conductivity @25C SM2510B 4470 umhos/cm 10 emk1* 02/17/20 16:011

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.05 mg/L 0.1B pjb0.02* 02/19/20 0:461

Residue, Filterable (TDS) @180C

SM2540C 3550 mg/L 40 mlh20 02/10/20 11:181

Sulfate D516-02/-07/-11 - Turbidimetric 1580 mg/L 500 ttg100* 02/18/20 11:16100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 17L57320-2002201343

Page 23: ACZ Laboratories, Inc.

ACZ Sample ID: L57320-04

Sample ID: 5-02

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/07/20 10:40

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 20.9 mg/L 3 jlw0.5* 02/13/20 20:455

Magnesium, dissolved M200.7 ICP 524 mg/L 5 jlw1 02/13/20 20:455

Potassium, dissolved M200.7 ICP 8 mg/L 5 jlw1 02/13/20 20:455

Sodium, dissolved M200.7 ICP 768 mg/L 5 jlw1 02/13/20 20:455

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 818 mg/L 20 ttg5* 02/17/20 12:1510

Conductivity @25C SM2510B 6010 umhos/cm 10 emk1 02/17/20 16:041

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.13 mg/L 0.1 pjb0.02* 02/19/20 0:471

Residue, Filterable (TDS) @180C

SM2540C 4420 mg/L 200 mlh100 02/10/20 11:225

Sulfate D516-02/-07/-11 - Turbidimetric 1340 mg/L 500 ttg100* 02/18/20 11:16100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 5 of 17L57320-2002201343

Page 24: ACZ Laboratories, Inc.

ACZ Sample ID: L57320-05

Sample ID: 5-9

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/07/20 11:38

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 338 mg/L 0.5 jlw0.1* 02/13/20 20:491

Magnesium, dissolved M200.7 ICP 1460 mg/L 2 jlw0.4 02/18/20 20:022

Potassium, dissolved M200.7 ICP 15.5 mg/L 1 jlw0.2 02/13/20 20:491

Sodium, dissolved M200.7 ICP 1090 mg/L 2 jlw0.4 02/18/20 20:022

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2250 mg/L 100 ttg30* 02/17/20 12:3550

Conductivity @25C SM2510B 12300 umhos/cm 10 emk1 02/17/20 16:061

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.23 mg/L 0.1 pjb0.02* 02/19/20 0:491

Residue, Filterable (TDS) @180C

SM2540C 10400 mg/L 200 jck100 02/12/20 16:185

Sulfate D516-02/-07/-11 - Turbidimetric 4210 mg/L 1000 ttg200* 02/18/20 11:14200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 6 of 17L57320-2002201343

Page 25: ACZ Laboratories, Inc.

ACZ Sample ID: L57320-06

Sample ID: 5-01

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID:

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/07/20 08:05

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 534 mg/L 3 jlw0.5* 02/13/20 20:525

Magnesium, dissolved M200.7 ICP 241 mg/L 5 jlw1 02/13/20 20:525

Potassium, dissolved M200.7 ICP 3 mg/L 5B jlw1 02/13/20 20:525

Sodium, dissolved M200.7 ICP 438 mg/L 5 jlw1 02/13/20 20:525

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 194 mg/L 20 ttg5* 02/17/20 12:1510

Conductivity @25C SM2510B 5410 umhos/cm 10 emk1* 02/17/20 16:081

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.05 mg/L 0.1B pjb0.02* 02/19/20 0:541

Residue, Filterable (TDS) @180C

SM2540C 5360 mg/L 80 mlh40 02/10/20 11:292

Sulfate D516-02/-07/-11 - Turbidimetric 3290 mg/L 500 ttg100* 02/18/20 11:40100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 7 of 17L57320-2002201343

Page 26: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U The material was analyzed for, but was not detected above the level of the associated value.

The associated value is either the sample quantitation limit or the sample detection limit.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP001.03.15.02

Inorganic

Reference

Page 8 of 17L57320-2002201343

Page 27: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57320Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491747

WG491747ICV 02/13/20 19:28 100ICV II200210-2 99.56 95 105mg/L100

WG491747ICB 02/13/20 19:34ICB U -0.3 0.3mg/L

WG491747LFB 02/13/20 19:47 103LFB II200203-2 70.08 85 115mg/L68.00334

L57329-04AS M302/13/20 21:15 394 75AS II200203-2 444.9 85 115mg/L68.00334

L57329-04ASD 02/13/20 21:18 394 100ASD II200203-2 461.8 485 115mg/L 2068.00334

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491867

WG491867ICB 02/17/20 9:46ICB U -1.5 1.5mg/L

WG491867ICV 02/17/20 9:46 102ICV WI190501-1 55.82 90 110mg/L54.835

WG491867LFB1 02/17/20 11:58 107LFB WI190812-3 32.03 90 110mg/L30

WG491867LFB2 02/17/20 12:02 108LFB WI190812-3 32.5 90 110mg/L30

L57320-02DUP 02/17/20 12:15 142DUP 140.4 1mg/L 20

L57320-01AS M302/17/20 12:35 3350 -143AS 50XCL 3307 90 110mg/L30

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491713

WG491713LCSW2 02/12/20 20:05 102LCSW PCN60028 1440 90 110umhos/cm1408

WG491713LCSW5 02/12/20 23:32 102LCSW PCN60028 1440 90 110umhos/cm1408

WG491713LCSW8 02/13/20 2:43 102LCSW PCN60028 1440 90 110umhos/cm1408

L57323-03DUP 02/13/20 5:55 426DUP 425 0umhos/cm 20

WG491713LCSW11 02/13/20 6:01 102LCSW PCN60028 1440 90 110umhos/cm1408

WG491713LCSW14 02/13/20 9:14 102LCSW PCN60028 1430 90 110umhos/cm1408

WG491932

WG491932LCSW2 02/17/20 15:45 102LCSW PCN60028 1440 90 110umhos/cm1408

L57343-02DUP 02/17/20 16:43 1320DUP 1320 0umhos/cm 20

WG491932LCSW5 02/17/20 18:22 102LCSW PCN60028 1430 90 110umhos/cm1408

WG491932LCSW8 02/17/20 21:45 101LCSW PCN60028 1420 90 110umhos/cm1408

WG491932LCSW11 02/17/20 23:48 100LCSW PCN60028 1410 90 110umhos/cm1408

WG491932LCSW14 02/18/20 1:39 99LCSW PCN60028 1400 90 110umhos/cm1408

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491747

WG491747ICV 02/13/20 19:28 98ICV II200210-2 97.95 95 105mg/L100

WG491747ICB 02/13/20 19:34ICB U -0.6 0.6mg/L

WG491747LFB 02/13/20 19:47 100LFB II200203-2 49.9 85 115mg/L49.99771

L57329-04AS 02/13/20 21:15 30.1 99AS II200203-2 79.48 85 115mg/L49.99771

L57329-04ASD 02/13/20 21:18 30.1 104ASD II200203-2 82 385 115mg/L 2049.99771

WG491807

WG491807ICV 02/18/20 18:45 98ICV II200210-2 97.6 95 105mg/L100

WG491807ICB 02/18/20 18:51ICB U -0.6 0.6mg/L

WG491807LFB 02/18/20 19:04 96LFB II200203-2 48.21 85 115mg/L49.99771

L57317-04AS 02/18/20 19:56 51.2 86AS II200203-2 94.28 85 115mg/L49.99771

L57317-04ASD 02/18/20 19:59 51.2 89ASD II200203-2 95.94 285 115mg/L 2049.99771

Page 9 of 17L57320-2002201343

Page 28: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57320Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492042

WG492042ICV 02/18/20 23:05 100ICV WI200213-7 2.424 90 110mg/L2.416

WG492042ICB 02/18/20 23:06ICB U -0.02 0.02mg/L

WG492046

WG492046LFB 02/19/20 0:18 102LFB WI191004-3 2.037 90 110mg/L2

L57320-02DUP RA02/19/20 0:59 UDUP U 0mg/L 20

L57320-01AS 02/19/20 1:03 65 97AS WI191004-3 162.2 90 110mg/L100

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491747

WG491747ICV 02/13/20 19:28 99ICV II200210-2 19.82 95 105mg/L20

WG491747ICB 02/13/20 19:34ICB U -0.6 0.6mg/L

WG491747LFB 02/13/20 19:47 102LFB II200203-2 101.8 85 115mg/L99.95798

L57329-04AS 02/13/20 21:15 50.7 102AS II200203-2 152.6 85 115mg/L99.95798

L57329-04ASD 02/13/20 21:18 50.7 107ASD II200203-2 157.7 385 115mg/L 2099.95798

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491512

WG491512PBW 02/10/20 10:18PBW U -40 40mg/L

WG491512LCSW 02/10/20 10:21 103LCSW PCN60403 992 80 120mg/L963

L57321-01DUP 02/10/20 11:35 4580DUP 4390 4mg/L 10

WG491708

WG491708PBW 02/12/20 15:55PBW U -40 40mg/L

WG491708LCSW 02/12/20 15:57 103LCSW PCN60394 996 80 120mg/L963

L57356-02DUP 02/12/20 16:26 444DUP 446 0mg/L 10

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491747

WG491747ICV 02/13/20 19:28 100ICV II200210-2 99.63 95 105mg/L100

WG491747ICB 02/13/20 19:34ICB U -0.6 0.6mg/L

WG491747LFB 02/13/20 19:47 102LFB II200203-2 101.6 85 115mg/L100.0046

L57329-04AS 02/13/20 21:15 25.1 102AS II200203-2 127.5 85 115mg/L100.0046

L57329-04ASD 02/13/20 21:18 25.1 107ASD II200203-2 132.1 485 115mg/L 20100.0046

WG491807

WG491807ICV 02/18/20 18:45 99ICV II200210-2 99.37 95 105mg/L100

WG491807ICB 02/18/20 18:51ICB U -0.6 0.6mg/L

WG491807LFB 02/18/20 19:04 97LFB II200203-2 97.46 85 115mg/L100.0046

L57317-04AS 02/18/20 19:56 71.1 93AS II200203-2 163.9 85 115mg/L100.0046

L57317-04ASD 02/18/20 19:59 71.1 95ASD II200203-2 166.5 285 115mg/L 20100.0046

Page 10 of 17L57320-2002201343

Page 29: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57320Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Sulfate D516-02/-07/-11 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491963

WG491963ICB 02/18/20 10:33ICB U -3 3mg/L

WG491963ICV 02/18/20 10:33 97ICV WI200204-3 19.3 90 110mg/L20

WG491963LFB 02/18/20 10:54 102LFB WI190801-3 10.2 90 110mg/L10.01

L57320-03AS M302/18/20 11:16 1580 0AS SO4TURB 1580 90 110mg/L10

L57320-02DUP 02/18/20 11:40 11200DUP 11200 0mg/L 20

Page 11 of 17L57320-2002201343

Page 30: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57320Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4917471L57320-01

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491867

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492046

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491963

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4917472L57320-02

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491867

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492046

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491963

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4917473L57320-03

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491867

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG491932

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492046

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491963

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4917474L57320-04

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491867

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492046

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491963

REPAD.15.06.05.01

Page 12 of 17L57320-2002201343

Page 31: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57320Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4917475L57320-05

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491867

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492046

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491963

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4917476L57320-06

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG491867

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG491932

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492046

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491963

REPAD.15.06.05.01

Page 13 of 17L57320-2002201343

Page 32: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L57320Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 14 of 17L57320-2002201343

Page 33: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company ACZ Project ID:

Date Received:

Received By:

02/08/2020 10:49

L57320

Date Printed: 2/10/2020

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

4300 5.1 <=6.0 15 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 15 of 17L57320-2002201343

Page 34: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company ACZ Project ID:

Date Received:

Received By:

02/08/2020 10:49

L57320

Date Printed: 2/10/2020

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 16 of 17L57320-2002201343

Page 35: ACZ Laboratories, Inc.

Page 17 of 17L57320-2002201343

Page 36: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L57286

Kent Applegate

February 28, 2020

Project ID: 4508122295

Report to:

cc: Clark Short, Angela Persico, Michaella Gorospe, jcarroll

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on February 06, 2020. This project has been assigned to ACZ's project number, L57286. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L57286. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute.

Except as noted, the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ) meet all requirements of NELAC.

This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report.

All samples and sub-samples associated with this project will be disposed of after March 29, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ's stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 18L57286-2002281033

Page 37: ACZ Laboratories, Inc.

ACZ Sample ID: L57286-01

Sample ID: 5-08 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/05/20 14:04

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 496 mg/L 1 jlw0.2 02/11/20 15:082

Iron, dissolved M200.7 ICP mg/L 0.2U jlw0.06 02/11/20 15:082

Magnesium, dissolved M200.7 ICP 169 mg/L 2 jlw0.4 02/11/20 15:082

Molybdenum, dissolved M200.8 ICP-MS 0.0047 mg/L 0.001 mfm0.0004 02/11/20 11:592

Nickel, dissolved M200.8 ICP-MS 0.0018 mg/L 0.002B mfm0.0008 02/11/20 11:592

Potassium, dissolved M200.7 ICP 3.5 mg/L 2 jlw0.4 02/11/20 15:082

Selenium, dissolved SM 3114 B, AA-Hydride 0.0107 mg/L 0.005 slm0.001* 02/11/20 16:131

Sodium, dissolved M200.7 ICP 291 mg/L 2 jlw0.4 02/11/20 15:082

Uranium, dissolved M200.8 ICP-MS 0.0259 mg/L 0.001 mfm0.0002 02/11/20 11:592

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

234 mg/L 20 eep2 02/08/20 0:001

Carbonate as CaCO3 mg/L 20U eep2 02/08/20 0:001

Hydroxide as CaCO3 mg/L 20U eep2 02/08/20 0:001

Total Alkalinity 234 mg/L 20 eep2 02/08/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 4.0 % calc02/28/20 0:00

Sum of Anions 48 meq/L calc02/28/20 0:00

Sum of Cations 52 meq/L calc02/28/20 0:00

Chloride SM4500Cl-E 119 mg/L 20 ttg5* 02/17/20 10:3710

Conductivity @25C SM2510B 3990 umhos/cm 10 eep1 02/08/20 20:541

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 27.2 mg/L 2 pjb0.3 02/15/20 1:2615

Residue, Filterable (TDS) @180C

SM2540C 3850 mg/L 80 jck40 02/06/20 18:102

Sulfate D516-02/-07/-11 - Turbidimetric 1910 mg/L 250 ttg50* 02/14/20 13:3150

TDS (calculated) Calculation 3130 mg/L calc02/28/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.23 calc02/28/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 18L57286-2002281033

Page 38: ACZ Laboratories, Inc.

ACZ Sample ID: L57286-02

Sample ID: 5-04 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/05/20 15:13

Date Received: 02/06/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 473 mg/L 3 jlw0.5 02/11/20 15:115

Iron, dissolved M200.7 ICP 70.3 mg/L 0.4 jlw0.2 02/11/20 15:115

Magnesium, dissolved M200.7 ICP 560 mg/L 5 jlw1 02/11/20 15:115

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.003U mfm0.001 02/11/20 12:015

Nickel, dissolved M200.8 ICP-MS mg/L 0.005U mfm0.002 02/11/20 12:015

Potassium, dissolved M200.7 ICP 4 mg/L 5B jlw1 02/11/20 15:115

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U slm0.001* 02/11/20 16:151

Sodium, dissolved M200.7 ICP 285 mg/L 5 jlw1 02/11/20 15:115

Uranium, dissolved M200.8 ICP-MS mg/L 0.003U mfm0.0005 02/11/20 12:015

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

4.0 mg/L 20B eep2 02/08/20 0:001

Carbonate as CaCO3 mg/L 20U eep2 02/08/20 0:001

Hydroxide as CaCO3 mg/L 20U eep2 02/08/20 0:001

Total Alkalinity 4.0 mg/L 20B eep2* 02/08/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 3.6 % calc02/28/20 0:00

Sum of Anions 80 meq/L calc02/28/20 0:00

Sum of Cations 86 meq/L calc02/28/20 0:00

Chloride SM4500Cl-E 1000 mg/L 100 ttg30* 02/17/20 10:4250

Conductivity @25C SM2510B 6350 umhos/cm 10 eep1* 02/08/20 21:021

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02 02/15/20 1:281

Residue, Filterable (TDS) @180C

SM2540C 5430 mg/L 200 nmc100 02/11/20 17:255

Sulfate D516-02/-07/-11 - Turbidimetric 2450 mg/L 500 ttg100* 02/14/20 13:35100

TDS (calculated) Calculation 4840 mg/L calc02/28/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.12 calc02/28/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 18L57286-2002281033

Page 39: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U The material was analyzed for, but was not detected above the level of the associated value.

The associated value is either the sample quantitation limit or the sample detection limit.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP001.03.15.02

Inorganic

Reference

Page 4 of 18L57286-2002281033

Page 40: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57286Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Alkalinity as CaCO3 SM2320B - Titration

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491480

WG491480PBW1 02/08/20 14:59PBW U -20 20mg/L

WG491480LCSW3 02/08/20 15:17 100LCSW WC200205-1 821 90 110mg/L820.0001

WG491480LCSW6 02/08/20 18:38 99LCSW WC200205-1 813 90 110mg/L820.0001

WG491480PBW2 02/08/20 18:46PBW U -20 20mg/L

L57294-03DUP 02/08/20 21:33 607DUP 606 0mg/L 20

WG491480LCSW9 02/08/20 21:51 97LCSW WC200205-1 795 90 110mg/L820.0001

WG491480PBW3 02/08/20 21:59PBW U -20 20mg/L

WG491480LCSW12 02/09/20 1:22 99LCSW WC200205-1 812 90 110mg/L820.0001

WG491480PBW4 02/09/20 1:30PBW U -20 20mg/L

WG491480LCSW15 02/09/20 3:59 100LCSW WC200205-1 820 90 110mg/L820.0001

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491596

WG491596ICV 02/11/20 14:23 99ICV II200210-2 98.58 95 105mg/L100

WG491596ICB 02/11/20 14:30ICB U -0.3 0.3mg/L

WG491596LFB 02/11/20 14:42 101LFB II200203-2 68.54 85 115mg/L68.00334

L57258-01AS 02/11/20 15:02 59.8 98AS II200203-2 126.2 85 115mg/L68.00334

L57258-01ASD 02/11/20 15:05 59.8 95ASD II200203-2 124.7 185 115mg/L 2068.00334

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491866

WG491866ICB 02/17/20 9:46ICB U -1.5 1.5mg/L

WG491866ICV 02/17/20 9:46 102ICV WI190501-1 55.82 90 110mg/L54.835

WG491866LFB1 02/17/20 10:19 108LFB WI190812-3 32.28 90 110mg/L30

WG491866LFB2 02/17/20 10:23 107LFB WI190812-3 32.11 90 110mg/L30

L57285-06AS M302/17/20 10:36 229 77AS 10XCL 252.2 90 110mg/L30

L57285-07DUP 02/17/20 10:37 321DUP 320.6 0mg/L 20

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491480

WG491480LCSW2 02/08/20 15:05 102LCSW PCN60028 1440 90 110umhos/cm1408

WG491480LCSW5 02/08/20 18:25 102LCSW PCN60028 1430 90 110umhos/cm1408

L57294-03DUP 02/08/20 21:33 4330DUP 4310 0umhos/cm 20

WG491480LCSW8 02/08/20 21:39 101LCSW PCN60028 1420 90 110umhos/cm1408

WG491480LCSW11 02/09/20 1:09 101LCSW PCN60028 1420 90 110umhos/cm1408

WG491480LCSW14 02/09/20 3:47 100LCSW PCN60028 1410 90 110umhos/cm1408

Iron, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491596

WG491596ICV 02/11/20 14:23 95ICV II200210-2 1.908 95 105mg/L2

WG491596ICB 02/11/20 14:30ICB U -0.09 0.09mg/L

WG491596LFB 02/11/20 14:42 98LFB II200203-2 .982 85 115mg/L1.0018

L57258-01AS 02/11/20 15:02 U 97AS II200203-2 .975 85 115mg/L1.0018

L57258-01ASD 02/11/20 15:05 U 97ASD II200203-2 .969 185 115mg/L 201.0018

Page 5 of 18L57286-2002281033

Page 41: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57286Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491596

WG491596ICV 02/11/20 14:23 97ICV II200210-2 97.1 95 105mg/L100

WG491596ICB 02/11/20 14:30ICB U -0.6 0.6mg/L

WG491596LFB 02/11/20 14:42 97LFB II200203-2 48.48 85 115mg/L49.99771

L57258-01AS 02/11/20 15:02 4.4 98AS II200203-2 53.39 85 115mg/L49.99771

L57258-01ASD 02/11/20 15:05 4.4 96ASD II200203-2 52.63 185 115mg/L 2049.99771

Molybdenum, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491594

WG491594ICV 02/11/20 11:34 99ICV MS200210-2 .01976 90 110mg/L.0199

WG491594ICB 02/11/20 11:36ICB U -0.00044 0.00044mg/L

WG491594LFB 02/11/20 11:38 102LFB MS200120-3 .05126 85 115mg/L.0501

L57238-01AS 02/11/20 11:49 .0008 103AS MS200120-3 .0522 70 130mg/L.0501

L57238-01ASD 02/11/20 11:50 .0008 101ASD MS200120-3 .05133 270 130mg/L 20.0501

Nickel, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491594

WG491594ICV 02/11/20 11:34 96ICV MS200210-2 .04814 90 110mg/L.05

WG491594ICB 02/11/20 11:36ICB U -0.00088 0.00088mg/L

WG491594LFB 02/11/20 11:38 101LFB MS200120-3 .05038 85 115mg/L.05

L57238-01AS 02/11/20 11:49 .0006 90AS MS200120-3 .0454 70 130mg/L.05

L57238-01ASD 02/11/20 11:50 .0006 87ASD MS200120-3 .04432 270 130mg/L 20.05

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491841

WG491841ICV 02/14/20 22:57 99ICV WI200213-7 2.389 90 110mg/L2.416

WG491841ICB 02/14/20 22:58ICB U -0.02 0.02mg/L

WG491843

WG491843LFB 02/15/20 0:44 103LFB WI191004-3 2.052 90 110mg/L2

L57285-01AS 02/15/20 1:18 6.7 103AS WI191004-3 17 90 110mg/L10

L57285-02DUP 02/15/20 1:20 8.23DUP 8.248 0mg/L 20

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491596

WG491596ICV 02/11/20 14:23 99ICV II200210-2 19.78 95 105mg/L20

WG491596ICB 02/11/20 14:30ICB U -0.6 0.6mg/L

WG491596LFB 02/11/20 14:42 98LFB II200203-2 98.23 85 115mg/L99.95798

L57258-01AS 02/11/20 15:02 .7 101AS II200203-2 101.5 85 115mg/L99.95798

L57258-01ASD 02/11/20 15:05 .7 99ASD II200203-2 99.99 185 115mg/L 2099.95798

Page 6 of 18L57286-2002281033

Page 42: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57286Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491409

WG491409PBW 02/06/20 17:05PBW U -40 40mg/L

WG491409LCSW 02/06/20 17:07 102LCSW PCN60403 986 80 120mg/L963

L57285-08DUP 02/06/20 18:07 4840DUP 4790 1mg/L 10

WG491638

WG491638PBW 02/11/20 17:15PBW U -40 40mg/L

WG491638LCSW 02/11/20 17:16 103LCSW PCN60394 990 80 120mg/L963

L57302-03DUP 02/11/20 17:36 1290DUP 1300 1mg/L 10

Selenium, dissolved SM 3114 B, AA-Hydride

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491583

WG491583ICV 02/11/20 15:14 106ICV SE200103-2 .0266 90 110mg/L.025025

WG491583ICB 02/11/20 15:17ICB U -0.003 0.003mg/L

WG491581

WG491581LRB 02/11/20 15:47LRB U -0.003 0.003mg/L

WG491581LFB 02/11/20 15:50 101LFB SE200103-4 .0225 85 115mg/L.02224

L57231-01LFM M202/11/20 15:54 .0017 83LFM SE200103-4 .0202 85 115mg/L.02224

L57231-01LFMD M202/11/20 15:56 .0017 80LFMD SE200103-4 .0195 485 115mg/L 20.02224

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491596

WG491596ICV 02/11/20 14:23 99ICV II200210-2 99.26 95 105mg/L100

WG491596ICB 02/11/20 14:30ICB U -0.6 0.6mg/L

WG491596LFB 02/11/20 14:42 99LFB II200203-2 98.79 85 115mg/L100.0046

L57258-01AS 02/11/20 15:02 3.4 101AS II200203-2 104.5 85 115mg/L100.0046

L57258-01ASD 02/11/20 15:05 3.4 100ASD II200203-2 103 185 115mg/L 20100.0046

Sulfate D516-02/-07/-11 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491814

WG491814ICB 02/14/20 13:05ICB U -3 3mg/L

WG491814ICV 02/14/20 13:05 96ICV WI200204-3 19.2 90 110mg/L20

WG491814LFB 02/14/20 13:14 101LFB WI190801-3 10.1 90 110mg/L10.01

L57138-02DUP RA02/14/20 13:14 UDUP U 0mg/L 20

L57139-02AS M302/14/20 13:29 244 30AS SO4TURB20X 247 90 110mg/L10

Uranium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491594

WG491594ICV 02/11/20 11:34 96ICV MS200210-2 .04783 90 110mg/L.05

WG491594ICB 02/11/20 11:36ICB U -0.00022 0.00022mg/L

WG491594LFB 02/11/20 11:38 100LFB MS200120-3 .05006 85 115mg/L.05

L57238-01AS 02/11/20 11:49 U 101AS MS200120-3 .05025 70 130mg/L.05

L57238-01ASD 02/11/20 11:50 U 99ASD MS200120-3 .04942 270 130mg/L 20.05

Page 7 of 18L57286-2002281033

Page 43: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57286Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4918661L57286-01

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG491581

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491814

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07/-11 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4918662L57286-02

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG491480

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG491581

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG491814

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07/-11 - Turbidimetric

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2320B - TitrationTotal AlkalinityWG491480

REPAD.15.06.05.01

Page 8 of 18L57286-2002281033

Page 44: ACZ Laboratories, Inc.

ACZ Sample ID: L57286-01

Sample ID: 5-08 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/05/20 14:04

Date Received: 02/06/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 28 13 55 pCi/L * amk02/12/20 0:33

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 0.0 1.2 3.4 pCi/L * jlg02/26/20 15:47

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.57 0.12 0.26 pCi/L jlg02/19/20 0:21

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved -0.06 0.78 2 pCi/L * amk02/19/20 19:56

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.259 0.2 0.28 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 9 of 18L57286-2002281033

Page 45: ACZ Laboratories, Inc.

ACZ Sample ID: L57286-02

Sample ID: 5-04 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/05/20 15:13

Date Received: 02/06/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 21 17 43 pCi/L * amk02/12/20 0:34

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved -1.8 1.2 3.7 pCi/L * jlg02/26/20 15:47

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.82 0.15 0.2 pCi/L jlg02/19/20 0:23

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 2.1 0.93 2.2 pCi/L * amk02/19/20 19:56

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.282 0.26 0.4 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 10 of 18L57286-2002281033

Page 46: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Error(+/-) Calculated sample specific uncertainty

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

LCL Lower Control Limit, in % (except for LCSS, mg/Kg)

LLD Calculated sample specific Lower Limit of Detection

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit

QC True Value of the Control Sample or the amount added to the Spike

Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg)

RER Relative Error Ratio, calculation used for Dup. QC taking into account the error factor.

RPD Relative Percent Difference, calculation used for Duplicate QC Types

UCL Upper Control Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

DUP Sample Duplicate MS/MSD Matrix Spike/Matrix Spike Duplicate

LCSS Laboratory Control Sample - Soil PBS Prep Blank - Soil

LCSW Laboratory Control Sample - Water PBW Prep Blank - Water

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Matrix Spikes Determines sample matrix interferences, if any.

ACZ Qualifiers (Qual)

H Analysis exceeded method hold time.

Method Prefix Reference

M EPA methodology, including those under SDWA, CWA, and RCRA

SM Standard Methods for the Examination of Water and Wastewater.

D ASTM

RP DOE

ESM DOE/ESM

Comments

(1) Solid matrices are reported on a dry weight basis.

(2) Preparation method: "Method" indicates preparation defined in analytical method.

(3) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification

qualifier associated with the result.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP003.09.12.01

Radiochemistry

Reference

Page 11 of 18L57286-2002281033

Page 47: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L57286Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Gross Alpha, dissolved M9310

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491490

WG491490PBW 02/12/20PBW 1.1 221.1 11

WG491490LCSWA 02/12/20 110LCSW PCN60283 110100 67 1448.9 12

L57229-01DUP 02/12/20 12DUP-RPD 11 203.43.6 6.16.6 9

L57229-02MSA 02/12/20 8.6 111MS PCN60283 120100 67 144113.1 1615

L57277-03DUP 02/12/20 20DUP-RER 14 24.6 0.855.3 7.58.5

L57277-03DUP RG02/12/20 20DUP-RPD 14 204.65.3 7.58.5 35

Lead 210, dissolved EICHROM, OTW01

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG492088

WG492088PBW 02/26/20PBW 1.2 61.1 3

WG492088LCSW 02/26/20 102LCSW PCN59631 10098.35 55 1213 3.5

L57286-01DUP1 02/27/20 0DUP-RER -1.1 21.4 0.61.2 3.93.4

L57321-02DUP2 02/27/20 0.84DUP-RER -2.5 22.1 1.271.6 6.44.6

L57286-01DUP1 RG02/27/20 0DUP-RPD -1.1 201.41.2 3.93.4 200

L57321-02DUP2 RG02/27/20 0.84DUP-RPD -2.5 202.11.6 6.44.6 402

L57321-01MS 02/27/20 1.3 100MS PCN59631 10098.34 55 1213.41.2 3.53.4

Radium 226, dissolved M903.1

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491652

WG491652PBW 02/19/20PBW .1 0.140.1 0.07

WG491652LCSW 02/19/20 125LCSW PCN57864 2520 43 1480.71 0.14

L57193-01DUP1 02/19/20 14DUP-RPD 16 200.510.45 0.080.12 13

L57284-04DUP2 02/19/20 48DUP-RPD 48 200.840.85 0.050.03 0

L57284-01MS 02/19/20 0.54 102MS PCN57864 2120 43 1480.520.12 0.040.14

Page 12 of 18L57286-2002281033

Page 48: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L57286Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Radium 228, dissolved M9320

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491906

L57284-03MS 02/19/20 2.3 111MS PCN58076 128.74 47 1231.20.83 1.91.8

WG491906LCSW 02/19/20 114LCSW PCN58076 108.74 47 1231.1 1.8

WG491906PBW 02/19/20PBW -.23 3.60.66 1.8

L57284-01DUP RG02/19/20 0DUP-RPD .13 201.30.9 3.22.4 200

L57284-01DUP 02/19/20 0DUP-RER .13 21.3 0.080.9 3.22.4

L57395-01DUP 02/19/20 0.25DUP-RER 1.6 21.2 0.950.75 2.91.8

L57395-01DUP RG02/19/20 0.25DUP-RPD 1.6 201.20.75 2.91.8 146

Thorium 230, dissolved ESM 4506

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491970

WG491970LCSW 02/20/20 103LCSW PCN58726 206200 91 12627 0.32

L57321-03DUP 02/21/20 0.125DUP-RER .416 20.37 0.690.2 0.530.34

L57321-03DUP RG02/21/20 0.125DUP-RPD .416 200.370.2 0.530.34 108

L57461-14DUP RG02/21/20 0.296DUP-RPD .24 200.220.31 0.330.5 21

L57461-14DUP 02/21/20 0.296DUP-RER .24 20.22 0.150.31 0.330.5

L57460-01MS 02/21/20 0.125 108MS PCN58726 216200 91 126300.21 0.430.36

WG491970PBW 02/21/20PBW .408 0.880.3 0.44

Page 13 of 18L57286-2002281033

Page 49: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

RadChem Extended

Qualifier Report

ACZ Project ID: L57286Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9310Gross Alpha, dissolvedWG4914901L57286-01

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01Lead 210, dissolvedWG492088

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG491906

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506Thorium 230, dissolvedWG491970

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9310Gross Alpha, dissolvedWG4914902L57286-02

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01Lead 210, dissolvedWG492088

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG491906

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506Thorium 230, dissolvedWG491970

REPAD.15.06.05.01

Page 14 of 18L57286-2002281033

Page 50: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L57286Rio Algom Mining Company

Radiochemistry

The following parameters are not offered for certification or are not covered by NELAC certificate #ACZ.

Lead 210, dissolved EICHROM, OTW01

Thorium 230, dissolved ESM 4506

REPAD.05.06.05.01

Page 15 of 18L57286-2002281033

Page 51: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/06/2020 11:29

L57286

Date Printed: 2/7/2020

Chain of Custody Related Remarks

Client Contact Remarks

The 'Relinquished By' field on the COC was not completed. The project manager is contacting the client.

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

6673 0.4 NA 15 Yes

6211 0.8 <=6.0 15 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 16 of 18L57286-2002281033

Page 52: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/06/2020 11:29

L57286

Date Printed: 2/7/2020

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 17 of 18L57286-2002281033

Page 53: ACZ Laboratories, Inc.

Page 18 of 18L57286-2002281033

Page 54: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L57321

Kent Applegate

February 28, 2020

Project ID: 4508122295

Report to:

cc: Clark Short, Angela Persico, Michaella Gorospe, jcarroll

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on February 08, 2020. This project has been assigned to ACZ's project number, L57321. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L57321. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute.

Except as noted, the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ) meet all requirements of NELAC.

This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report.

All samples and sub-samples associated with this project will be disposed of after March 29, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ's stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 23L57321-2002281033

Page 55: ACZ Laboratories, Inc.

ACZ Sample ID: L57321-01

Sample ID: 5-03 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/06/20 10:32

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 532 mg/L 1 jlw0.2 02/12/20 17:582

Iron, dissolved M200.7 ICP mg/L 0.2U jlw0.06 02/12/20 17:582

Magnesium, dissolved M200.7 ICP 278 mg/L 2 jlw0.4 02/12/20 17:582

Molybdenum, dissolved M200.8 ICP-MS 0.0009 mg/L 0.001B bsu0.0004 02/12/20 11:232

Nickel, dissolved M200.8 ICP-MS 0.0022 mg/L 0.002 bsu0.0008 02/12/20 11:232

Potassium, dissolved M200.7 ICP 3.9 mg/L 2 jlw0.4 02/12/20 17:582

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U slm0.001 02/12/20 15:571

Sodium, dissolved M200.7 ICP 435 mg/L 2 jlw0.4* 02/12/20 17:582

Uranium, dissolved M200.8 ICP-MS 0.0968 mg/L 0.001 bsu0.0002 02/12/20 11:232

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

314 mg/L 20 eep2 02/09/20 0:001

Carbonate as CaCO3 mg/L 20U eep2 02/09/20 0:001

Hydroxide as CaCO3 mg/L 20U eep2 02/09/20 0:001

Total Alkalinity 314 mg/L 20 eep2 02/09/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 1.5 % calc02/28/20 0:00

Sum of Anions 67 meq/L calc02/28/20 0:00

Sum of Cations 69 meq/L calc02/28/20 0:00

Chloride SM4500Cl-E 637 mg/L 20 wtc5 02/20/20 14:2010

Conductivity @25C SM2510B 5370 umhos/cm 10 emk1 02/17/20 16:101

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.63 mg/L 0.1 pjb0.02 02/26/20 1:141

Residue, Filterable (TDS) @180C

SM2540C 4580 mg/L 200 mlh100 02/10/20 11:325

Sulfate D516-02/-07/-11 - Turbidimetric 2020 mg/L 600 wtc120* 02/19/20 11:08120

TDS (calculated) Calculation 4100 mg/L calc02/28/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.12 calc02/28/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 23L57321-2002281033

Page 56: ACZ Laboratories, Inc.

ACZ Sample ID: L57321-02

Sample ID: 31-61 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/06/20 14:22

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 521 mg/L 0.5 jlw0.1 02/12/20 18:011

Iron, dissolved M200.7 ICP mg/L 0.08U jlw0.03 02/12/20 18:011

Magnesium, dissolved M200.7 ICP 1320 mg/L 10 kja2 02/13/20 11:5910

Molybdenum, dissolved M200.8 ICP-MS 0.0005 mg/L 0.0005 bsu0.0002 02/12/20 11:251

Nickel, dissolved M200.8 ICP-MS 0.0466 mg/L 0.001 bsu0.0004 02/12/20 11:251

Potassium, dissolved M200.7 ICP 34.2 mg/L 1 jlw0.2 02/12/20 18:011

Selenium, dissolved SM 3114 B, AA-Hydride 0.0046 mg/L 0.005B slm0.001 02/12/20 16:031

Sodium, dissolved M200.7 ICP 1700 mg/L 10 kja2 02/18/20 13:0710

Uranium, dissolved M200.8 ICP-MS 0.642 mg/L 0.0005 bsu0.0001 02/12/20 11:251

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

1840 mg/L 20 eep2 02/09/20 0:001

Carbonate as CaCO3 mg/L 20U eep2 02/09/20 0:001

Hydroxide as CaCO3 mg/L 20U eep2 02/09/20 0:001

Total Alkalinity 1840 mg/L 20 eep2 02/09/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -6.7 % calc02/28/20 0:00

Sum of Anions 240 meq/L calc02/28/20 0:00

Sum of Cations 210 meq/L calc02/28/20 0:00

Chloride SM4500Cl-E 2460 mg/L 100 wtc30 02/20/20 12:2860

Conductivity @25C SM2510B 15800 umhos/cm 10 emk1 02/17/20 16:121

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 12.0 mg/L 1 pjb0.2 02/26/20 1:2210

Residue, Filterable (TDS) @180C

SM2540C 13700 mg/L 200 nmc100 02/10/20 17:495

Sulfate D516-02/-07/-11 - Turbidimetric 6390 mg/L 1000 wtc200* 02/19/20 11:31200

TDS (calculated) Calculation 13500 mg/L calc02/28/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.01 calc02/28/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 23L57321-2002281033

Page 57: ACZ Laboratories, Inc.

ACZ Sample ID: L57321-03

Sample ID: 5-02 KD

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/07/20 11:04

Date Received: 02/08/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Antimony, dissolved M200.8 ICP-MS mg/L 0.002U bsu0.0004 02/12/20 11:261

Arsenic, dissolved M200.8 ICP-MS mg/L 0.001U bsu0.0002 02/12/20 11:261

Barium, dissolved M200.7 ICP 0.019 mg/L 0.04B jlw0.007 02/12/20 18:051

Beryllium, dissolved M200.8 ICP-MS mg/L 0.0003U bsu0.00008 02/12/20 11:261

Cadmium, dissolved M200.8 ICP-MS mg/L 0.0003U bsu0.00005 02/12/20 11:261

Calcium, dissolved M200.7 ICP 88.2 mg/L 0.5 jlw0.1 02/12/20 18:051

Iron, dissolved M200.7 ICP 0.04 mg/L 0.08B jlw0.03 02/12/20 18:051

Lead, dissolved M200.8 ICP-MS mg/L 0.0005U bsu0.0001 02/12/20 11:261

Magnesium, dissolved M200.7 ICP 81.2 mg/L 1 jlw0.2 02/12/20 18:051

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.0005U bsu0.0002 02/12/20 11:261

Nickel, dissolved M200.8 ICP-MS 0.0005 mg/L 0.001B bsu0.0004 02/12/20 11:261

Potassium, dissolved M200.7 ICP 18.0 mg/L 1 jlw0.2 02/12/20 18:051

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U slm0.001 02/12/20 16:051

Sodium, dissolved M200.7 ICP 85.5 mg/L 1 jlw0.2* 02/12/20 18:051

Uranium, dissolved M200.8 ICP-MS 0.0015 mg/L 0.0005 bsu0.0001 02/12/20 11:261

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

477 mg/L 20 eep2 02/09/20 0:001

Carbonate as CaCO3 9.0 mg/L 20B eep2 02/09/20 0:001

Hydroxide as CaCO3 mg/L 20U eep2 02/09/20 0:001

Total Alkalinity 486 mg/L 20 eep2 02/09/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -3.2 % calc02/28/20 0:00

Sum of Anions 16 meq/L calc02/28/20 0:00

Sum of Cations 15 meq/L calc02/28/20 0:00

Chloride SM4500Cl-E 9.7 mg/L 2 wtc0.5 02/20/20 11:511

Conductivity @25C SM2510B 1380 umhos/cm 10 emk1* 02/17/20 16:141

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003 02/10/20 13:351

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.82 mg/L 0.1 pjb0.02 02/26/20 1:211

Residue, Filterable (TDS) @180C

SM2540C 906 mg/L 40 nmc20 02/10/20 17:511

Sulfate D516-02/-07/-11 - Turbidimetric 307 mg/L 75 wtc15* 02/19/20 10:5415

TDS (calculated) Calculation 886 mg/L calc02/28/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.02 calc02/28/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 23L57321-2002281033

Page 58: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U The material was analyzed for, but was not detected above the level of the associated value.

The associated value is either the sample quantitation limit or the sample detection limit.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP001.03.15.02

Inorganic

Reference

Page 5 of 23L57321-2002281033

Page 59: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Alkalinity as CaCO3 SM2320B - Titration

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491480

WG491480PBW1 02/08/20 14:59PBW U -20 20mg/L

WG491480LCSW3 02/08/20 15:17 100LCSW WC200205-1 821 90 110mg/L820.0001

WG491480LCSW6 02/08/20 18:38 99LCSW WC200205-1 813 90 110mg/L820.0001

WG491480PBW2 02/08/20 18:46PBW U -20 20mg/L

WG491480LCSW9 02/08/20 21:51 97LCSW WC200205-1 795 90 110mg/L820.0001

WG491480PBW3 02/08/20 21:59PBW U -20 20mg/L

WG491480LCSW12 02/09/20 1:22 99LCSW WC200205-1 812 90 110mg/L820.0001

WG491480PBW4 02/09/20 1:30PBW U -20 20mg/L

L57321-01DUP 02/09/20 2:55 314DUP 300 5mg/L 20

L57321-03DUP 02/09/20 3:41 486DUP 502 3mg/L 20

WG491480LCSW15 02/09/20 3:59 100LCSW WC200205-1 820 90 110mg/L820.0001

Antimony, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 101ICV MS200210-2 .02026 90 110mg/L.02004

WG491654ICB 02/12/20 10:34ICB U -0.00088 0.00088mg/L

WG491654LFB 02/12/20 10:35 99LFB MS200120-3 .0099 85 115mg/L.01

L57284-03AS 02/12/20 11:10 U 99AS MS200120-3 .0198 70 130mg/L.02

L57284-03ASD 02/12/20 11:15 U 98ASD MS200120-3 .01959 170 130mg/L 20.02

Arsenic, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 104ICV MS200210-2 .05184 90 110mg/L.05

WG491654ICB 02/12/20 10:34ICB U -0.00044 0.00044mg/L

WG491654LFB 02/12/20 10:35 95LFB MS200120-3 .04733 85 115mg/L.05005

L57284-03AS 02/12/20 11:10 U 97AS MS200120-3 .09724 70 130mg/L.1001

L57284-03ASD 02/12/20 11:15 U 95ASD MS200120-3 .09509 270 130mg/L 20.1001

Barium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491678

WG491678ICV 02/12/20 17:34 97ICV II200210-2 1.943 95 105mg/L2

WG491678ICB 02/12/20 17:40ICB U -0.021 0.021mg/L

WG491678LFB 02/12/20 17:52 94LFB II200203-2 .4698 85 115mg/L.5005

L57323-01AS 02/12/20 18:11 .046 93AS II200203-2 .5129 85 115mg/L.5005

L57323-01ASD 02/12/20 18:14 .046 91ASD II200203-2 .5037 285 115mg/L 20.5005

Beryllium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 101ICV MS200210-2 .050681 90 110mg/L.05

WG491654ICB 02/12/20 10:34ICB .000107 -0.000176 0.000176mg/L

WG491654LFB 02/12/20 10:35 100LFB MS200120-3 .049975 85 115mg/L.05005

L57284-03AS 02/12/20 11:10 U 95AS MS200120-3 .09481 70 130mg/L.1001

L57284-03ASD 02/12/20 11:15 U 94ASD MS200120-3 .09435 070 130mg/L 20.1001

Page 6 of 23L57321-2002281033

Page 60: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Cadmium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 101ICV MS200210-2 .050569 90 110mg/L.05

WG491654ICB 02/12/20 10:34ICB U -0.00011 0.00011mg/L

WG491654LFB 02/12/20 10:35 98LFB MS200120-3 .048949 85 115mg/L.05005

L57284-03AS 02/12/20 11:10 U 94AS MS200120-3 .09449 70 130mg/L.1001

L57284-03ASD 02/12/20 11:15 U 92ASD MS200120-3 .09195 370 130mg/L 20.1001

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491678

WG491678ICV 02/12/20 17:34 98ICV II200210-2 97.63 95 105mg/L100

WG491678ICB 02/12/20 17:40ICB U -0.3 0.3mg/L

WG491678LFB 02/12/20 17:52 97LFB II200203-2 66.15 85 115mg/L68.00334

L57323-01AS 02/12/20 18:11 13.7 93AS II200203-2 76.79 85 115mg/L68.00334

L57323-01ASD 02/12/20 18:14 13.7 93ASD II200203-2 77.23 185 115mg/L 2068.00334

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492142

WG492142ICB 02/20/20 10:27ICB U -1.5 1.5mg/L

WG492142ICV 02/20/20 10:27 103ICV WI190501-1 56.21 90 110mg/L54.835

WG492142LFB1 02/20/20 11:49 107LFB WI190812-3 32.11 90 110mg/L30

L57417-01AS 02/20/20 12:16 141 102AS 10XCL 171.6 90 110mg/L30

L57417-02DUP 02/20/20 12:16 144DUP 137 5mg/L 20

WG492142LFB2 02/20/20 14:12 104LFB WI190812-3 31.34 90 110mg/L30

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491932

WG491932LCSW2 02/17/20 15:45 102LCSW PCN60028 1440 90 110umhos/cm1408

L57343-02DUP 02/17/20 16:43 1320DUP 1320 0umhos/cm 20

WG491932LCSW5 02/17/20 18:22 102LCSW PCN60028 1430 90 110umhos/cm1408

WG491932LCSW8 02/17/20 21:45 101LCSW PCN60028 1420 90 110umhos/cm1408

WG491932LCSW11 02/17/20 23:48 100LCSW PCN60028 1410 90 110umhos/cm1408

WG491932LCSW14 02/18/20 1:39 99LCSW PCN60028 1400 90 110umhos/cm1408

Cyanide, Total D7511-09

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491510

WG491510ICV 02/10/20 13:11 94ICV WI200206-5 .2829 90 110mg/L.3

WG491510ICB 02/10/20 13:13ICB U -0.003 0.003mg/L

WG491510LFB 02/10/20 13:19 97LFB WI200206-6 .0965 84 116mg/L.1

L57133-01AS 02/10/20 13:25 .013 99AS WI200206-6 .1118 84 116mg/L.1

L57133-01ASD H102/10/20 13:27 .013 102ASD WI200206-6 .1149 384 116mg/L 20.1

Page 7 of 23L57321-2002281033

Page 61: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Iron, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491678

WG491678ICV 02/12/20 17:34 96ICV II200210-2 1.911 95 105mg/L2

WG491678ICB 02/12/20 17:40ICB U -0.09 0.09mg/L

WG491678LFB 02/12/20 17:52 94LFB II200203-2 .943 85 115mg/L1.0018

L57323-01AS 02/12/20 18:11 .13 92AS II200203-2 1.054 85 115mg/L1.0018

L57323-01ASD 02/12/20 18:14 .13 92ASD II200203-2 1.053 085 115mg/L 201.0018

Lead, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 105ICV MS200210-2 .05264 90 110mg/L.05

WG491654ICB 02/12/20 10:34ICB U -0.00022 0.00022mg/L

WG491654LFB 02/12/20 10:35 98LFB MS200120-3 .04886 85 115mg/L.05005

L57284-03AS 02/12/20 11:10 U 98AS MS200120-3 .09762 70 130mg/L.1001

L57284-03ASD 02/12/20 11:15 U 95ASD MS200120-3 .09484 370 130mg/L 20.1001

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491678

WG491678ICV 02/12/20 17:34 96ICV II200210-2 95.62 95 105mg/L100

WG491678ICB 02/12/20 17:40ICB U -0.6 0.6mg/L

WG491678LFB 02/12/20 17:52 94LFB II200203-2 46.93 85 115mg/L49.99771

L57323-01AS 02/12/20 18:11 1.8 90AS II200203-2 46.98 85 115mg/L49.99771

L57323-01ASD 02/12/20 18:14 1.8 91ASD II200203-2 47.26 185 115mg/L 2049.99771

WG491741

WG491741ICV 02/13/20 11:32 102ICV II200210-2 101.58 95 105mg/L100

WG491741ICB 02/13/20 11:38ICB U -0.6 0.6mg/L

WG491741LFB 02/13/20 11:50 97LFB II200203-2 48.47 85 115mg/L49.99771

L57323-01AS 02/13/20 12:05 2.1 92AS II200203-2 47.97 85 115mg/L49.99771

L57323-01ASD 02/13/20 12:08 2.1 93ASD II200203-2 48.68 185 115mg/L 2049.99771

Molybdenum, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 104ICV MS200210-2 .02064 90 110mg/L.0199

WG491654ICB 02/12/20 10:34ICB U -0.00044 0.00044mg/L

WG491654LFB 02/12/20 10:35 99LFB MS200120-3 .04936 85 115mg/L.0501

L57284-03AS 02/12/20 11:10 .0022 100AS MS200120-3 .10279 70 130mg/L.1002

L57284-03ASD 02/12/20 11:15 .0022 98ASD MS200120-3 .10034 270 130mg/L 20.1002

Nickel, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 107ICV MS200210-2 .05347 90 110mg/L.05

WG491654ICB 02/12/20 10:34ICB U -0.00088 0.00088mg/L

WG491654LFB 02/12/20 10:35 97LFB MS200120-3 .04826 85 115mg/L.05

L57284-03AS 02/12/20 11:10 U 92AS MS200120-3 .0916 70 130mg/L.1

L57284-03ASD 02/12/20 11:15 U 89ASD MS200120-3 .08902 370 130mg/L 20.1

Page 8 of 23L57321-2002281033

Page 62: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492462

WG492462ICV 02/25/20 21:04 101ICV WI200213-7 2.443 90 110mg/L2.416

WG492462ICB 02/25/20 21:05ICB U -0.02 0.02mg/L

WG492467

WG492467LFB 02/26/20 0:54 102LFB WI191004-3 2.04 90 110mg/L2

L57321-01AS 02/26/20 1:15 .63 99AS WI191004-3 2.613 90 110mg/L2

L57321-02DUP 02/26/20 1:24 12DUP 11.97 0mg/L 20

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491678

WG491678ICV 02/12/20 17:34 99ICV II200210-2 19.74 95 105mg/L20

WG491678ICB 02/12/20 17:40ICB U -0.6 0.6mg/L

WG491678LFB 02/12/20 17:52 96LFB II200203-2 95.72 85 115mg/L99.95798

L57323-01AS 02/12/20 18:11 43.1 96AS II200203-2 139 85 115mg/L99.95798

L57323-01ASD 02/12/20 18:14 43.1 96ASD II200203-2 139 085 115mg/L 2099.95798

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491512

WG491512PBW 02/10/20 10:18PBW U -40 40mg/L

WG491512LCSW 02/10/20 10:21 103LCSW PCN60403 992 80 120mg/L963

L57321-01DUP 02/10/20 11:35 4580DUP 4390 4mg/L 10

WG491558

WG491558PBW 02/10/20 17:41PBW U -40 40mg/L

WG491558LCSW 02/10/20 17:43 103LCSW PCN60403 992 80 120mg/L963

L57329-01DUP 02/10/20 18:13 2490DUP 2470 1mg/L 10

Selenium, dissolved SM 3114 B, AA-Hydride

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491681

WG491681ICV 02/12/20 15:47 104ICV SE200103-2 .0261 90 110mg/L.025025

WG491681ICB 02/12/20 15:49ICB U -0.003 0.003mg/L

WG491681LRB 02/12/20 15:51LRB U -0.003 0.003mg/L

WG491681LFB 02/12/20 15:53 103LFB SE200103-4 .0229 85 115mg/L.02224

L57321-01LFM 02/12/20 15:59 U 92LFM SE200103-4 .0205 85 115mg/L.02224

L57321-01LFMD 02/12/20 16:01 U 93LFMD SE200103-4 .0207 185 115mg/L 20.02224

Page 9 of 23L57321-2002281033

Page 63: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491678

WG491678ICV 02/12/20 17:34 98ICV II200210-2 97.93 95 105mg/L100

WG491678ICB 02/12/20 17:40ICB U -0.6 0.6mg/L

WG491678LFB 02/12/20 17:52 95LFB II200203-2 95.34 85 115mg/L100.0046

L57323-01AS M302/12/20 18:11 492 82AS II200203-2 574.1 85 115mg/L100.0046

L57323-01ASD M302/12/20 18:14 492 78ASD II200203-2 569.9 185 115mg/L 20100.0046

WG491765

WG491765ICV 02/18/20 12:29 99ICV II200210-2 99.45 95 105mg/L100

WG491765ICB 02/18/20 12:35ICB U -0.6 0.6mg/L

WG491765LFB 02/18/20 12:48 97LFB II200203-2 97.05 85 115mg/L100.0046

L57284-02AS 02/18/20 12:58 409 99AS II200203-2 904.5 85 115mg/L500.023

L57284-02ASD 02/18/20 13:01 409 100ASD II200203-2 910.5 185 115mg/L 20500.023

Sulfate D516-02/-07/-11 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492058

WG492058ICB 02/19/20 10:16ICB U -3 3mg/L

WG492058ICV 02/19/20 10:16 100ICV WI200219-1 20 90 110mg/L20

WG492058LFB 02/19/20 10:26 101LFB WI190801-3 10.1 90 110mg/L10.01

L57321-03DUP 02/19/20 10:54 307DUP 288 6mg/L 20

L57321-02AS M302/19/20 11:31 6390 681AS SO4TURB40X 6730 90 110mg/L49.95

Uranium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491654

WG491654ICV 02/12/20 10:32 109ICV MS200210-2 .05434 90 110mg/L.05

WG491654ICB 02/12/20 10:34ICB U -0.00022 0.00022mg/L

WG491654LFB 02/12/20 10:35 101LFB MS200120-3 .0503 85 115mg/L.05

L57284-03AS 02/12/20 11:10 .0024 106AS MS200120-3 .10822 70 130mg/L.1

L57284-03ASD 02/12/20 11:15 .0024 103ASD MS200120-3 .1051 370 130mg/L 20.1

Page 10 of 23L57321-2002281033

Page 64: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57321Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPSodium, dissolvedWG4916781L57321-01

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG492058

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG4920582L57321-02

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG4919323L57321-03

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPSodium, dissolvedWG491678

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG492058

REPAD.15.06.05.01

Page 11 of 23L57321-2002281033

Page 65: ACZ Laboratories, Inc.

ACZ Sample ID: L57321-01

Sample ID: 5-03 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/06/20 10:32

Date Received: 02/08/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 45 20 46 pCi/L * amk02/19/20 0:17

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 1.3 1.2 3.4 pCi/L * jlg02/26/20 15:47

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.37 0.14 0.13 pCi/L jlg02/19/20 0:30

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 0.47 0.79 2 pCi/L * amk02/19/20 21:42

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.283 0.21 0.3 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 12 of 23L57321-2002281033

Page 66: ACZ Laboratories, Inc.

ACZ Sample ID: L57321-02

Sample ID: 31-61 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/06/20 14:22

Date Received: 02/08/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 450 100 130 pCi/L * amk02/19/20 0:18

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 0.84 1.6 4.6 pCi/L * jlg02/26/20 15:47

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.31 0.11 0.08 pCi/L * jlg02/25/20 0:02

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 2.5 1.1 2.6 pCi/L * amk02/19/20 21:42

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.706 0.42 0.49 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 13 of 23L57321-2002281033

Page 67: ACZ Laboratories, Inc.

ACZ Sample ID: L57321-03

Sample ID: 5-02 KD

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/07/20 11:04

Date Received: 02/08/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected -1.6 pCi/L calc02/28/20 8:34

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved -0.55 2.9 22 pCi/L * amk02/19/20 0:20

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved -1.4 1.2 3.7 pCi/L * jlg02/26/20 15:47

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 1.1 0.2 0.14 pCi/L * jlg02/25/20 0:04

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 1.4 1.1 2.5 pCi/L * amk02/19/20 21:42

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.125 0.2 0.34 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 14 of 23L57321-2002281033

Page 68: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Error(+/-) Calculated sample specific uncertainty

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

LCL Lower Control Limit, in % (except for LCSS, mg/Kg)

LLD Calculated sample specific Lower Limit of Detection

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit

QC True Value of the Control Sample or the amount added to the Spike

Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg)

RER Relative Error Ratio, calculation used for Dup. QC taking into account the error factor.

RPD Relative Percent Difference, calculation used for Duplicate QC Types

UCL Upper Control Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

DUP Sample Duplicate MS/MSD Matrix Spike/Matrix Spike Duplicate

LCSS Laboratory Control Sample - Soil PBS Prep Blank - Soil

LCSW Laboratory Control Sample - Water PBW Prep Blank - Water

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Matrix Spikes Determines sample matrix interferences, if any.

ACZ Qualifiers (Qual)

H Analysis exceeded method hold time.

Method Prefix Reference

M EPA methodology, including those under SDWA, CWA, and RCRA

SM Standard Methods for the Examination of Water and Wastewater.

D ASTM

RP DOE

ESM DOE/ESM

Comments

(1) Solid matrices are reported on a dry weight basis.

(2) Preparation method: "Method" indicates preparation defined in analytical method.

(3) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification

qualifier associated with the result.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP003.09.12.01

Radiochemistry

Reference

Page 15 of 23L57321-2002281033

Page 69: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Gross Alpha, dissolved M9310

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491938

WG491938PBW 02/19/20PBW -.08 221.1 11

WG491938LCSWA 02/19/20 100LCSW PCN60283 100100 67 1448.7 12

L57278-01DUP RG02/19/20 1.9DUP-RPD 1.2 201.82.2 6.87.5 45

L57278-01DUP 02/19/20 1.9DUP-RER 1.2 21.8 0.252.2 6.87.5

L57311-02DUP 02/19/20 0.74DUP-RER .4 21.8 0.151.4 166.5

L57311-02DUP RG02/19/20 0.74DUP-RPD .4 201.81.4 166.5 60

L57312-01MSA 02/19/20 1.7 78MS PCN60283 80100 67 144102.2 1120

Lead 210, dissolved EICHROM, OTW01

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG492088

WG492088PBW 02/26/20PBW 1.2 61.1 3

WG492088LCSW 02/26/20 102LCSW PCN59631 10098.35 55 1213 3.5

L57286-01DUP1 02/27/20 0DUP-RER -1.1 21.4 0.61.2 3.93.4

L57321-02DUP2 02/27/20 0.84DUP-RER -2.5 22.1 1.271.6 6.44.6

L57286-01DUP1 RG02/27/20 0DUP-RPD -1.1 201.41.2 3.93.4 200

L57321-02DUP2 RG02/27/20 0.84DUP-RPD -2.5 202.11.6 6.44.6 402

L57321-01MS 02/27/20 1.3 100MS PCN59631 10098.34 55 1213.41.2 3.53.4

Page 16 of 23L57321-2002281033

Page 70: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Radium 226, dissolved M903.1

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491652

WG491652PBW 02/19/20PBW .1 0.140.1 0.07

WG491652LCSW 02/19/20 125LCSW PCN57864 2520 43 1480.71 0.14

L57193-01DUP1 02/19/20 14DUP-RPD 16 200.510.45 0.080.12 13

L57284-04DUP2 02/19/20 48DUP-RPD 48 200.840.85 0.050.03 0

L57284-01MS 02/19/20 0.54 102MS PCN57864 2120 43 1480.520.12 0.040.14

WG491969

WG491969PBW 02/25/20PBW .19 0.380.12 0.19

WG491969LCSW 02/25/20 85LCSW PCN57864 1720 43 1480.71 0.2

L57324-01DUP1 02/25/20 0.16DUP-RER .25 20.11 0.660.08 0.170.1

L57324-01DUP1 RG02/25/20 0.16DUP-RPD .25 200.110.08 0.170.1 44

L57326-01DUP2 02/25/20 0.24DUP-RPD .27 200.080.09 0.250.03 12

L57325-01MS 02/25/20 0.35 78MS PCN57864 1620 43 1480.490.11 0.180.13

Radium 228, dissolved M9320

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491906

WG491906PBW 02/19/20PBW -.23 3.60.66 1.8

L57284-03MS 02/19/20 2.3 111MS PCN58076 128.74 47 1231.20.83 1.91.8

WG491906LCSW 02/19/20 114LCSW PCN58076 108.74 47 1231.1 1.8

L57284-01DUP 02/19/20 0DUP-RER .13 21.3 0.080.9 3.22.4

L57284-01DUP RG02/19/20 0DUP-RPD .13 201.30.9 3.22.4 200

L57395-01DUP 02/19/20 0.25DUP-RER 1.6 21.2 0.950.75 2.91.8

L57395-01DUP RG02/19/20 0.25DUP-RPD 1.6 201.20.75 2.91.8 146

Page 17 of 23L57321-2002281033

Page 71: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L57321Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Thorium 230, dissolved ESM 4506

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491970

WG491970LCSW 02/20/20 103LCSW PCN58726 206200 91 12627 0.32

L57321-03DUP RG02/21/20 0.125DUP-RPD .416 200.370.2 0.530.34 108

L57321-03DUP 02/21/20 0.125DUP-RER .416 20.37 0.690.2 0.530.34

L57461-14DUP 02/21/20 0.296DUP-RER .24 20.22 0.150.31 0.330.5

L57461-14DUP RG02/21/20 0.296DUP-RPD .24 200.220.31 0.330.5 21

L57460-01MS 02/21/20 0.125 108MS PCN58726 216200 91 126300.21 0.430.36

WG491970PBW 02/21/20PBW .408 0.880.3 0.44

Page 18 of 23L57321-2002281033

Page 72: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

RadChem Extended

Qualifier Report

ACZ Project ID: L57321Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9310Gross Alpha, dissolvedWG4919381L57321-01

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01Lead 210, dissolvedWG492088

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG491906

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506Thorium 230, dissolvedWG491970

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9310Gross Alpha, dissolvedWG4919382L57321-02

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

EICHROM, OTW01Lead 210, dissolvedWG492088

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M903.1Radium 226, dissolvedWG491969

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M903.1

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M9320Radium 228, dissolvedWG491906

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320

D1 Sample required dilution due to matrix.ESM 4506Thorium 230, dissolvedWG491970

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9310Gross Alpha, dissolvedWG4919383L57321-03

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01Lead 210, dissolvedWG492088

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M903.1Radium 226, dissolvedWG491969

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG491906

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506Thorium 230, dissolvedWG491970

REPAD.15.06.05.01

Page 19 of 23L57321-2002281033

Page 73: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L57321Rio Algom Mining Company

Radiochemistry

The following parameters are not offered for certification or are not covered by NELAC certificate #ACZ.

Lead 210, dissolved EICHROM, OTW01

Thorium 230, dissolved ESM 4506

REPAD.05.06.05.01

Page 20 of 23L57321-2002281033

Page 74: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/08/2020 10:49

L57321

Date Printed: 2/10/2020

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

L57321-02 Container B2238509 (GREEN CUBE): Added 10 mls nitric

acid to the sub-sample to adjust the pH to the appropriate

range.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

4300 5.1 <=6.0 15 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 21 of 23L57321-2002281033

Page 75: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/08/2020 10:49

L57321

Date Printed: 2/10/2020

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 22 of 23L57321-2002281033

Page 76: ACZ Laboratories, Inc.

Page 23 of 23L57321-2002281033

Page 77: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L57461

Kent Applegate

March 04, 2020

Project ID: 4508122295

Report to:

cc: Clark Short, Angela Persico

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on February 15, 2020. This project has been assigned to ACZ's project number, L57461. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L57461. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute.

Except as noted, the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ) meet all requirements of NELAC.

This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report.

All samples and sub-samples associated with this project will be disposed of after April 03, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ's stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 50L57461-2003041359

Page 78: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-01

Sample ID: 17-VH-9

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 12:55

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Inorganic Prep

XQDilution

Nitrogen, total Kjeldahl M351.2 - Block Digestor wtc02/26/20 11:34

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Aluminum, dissolved M200.7 ICP mg/L 0.3U jlw0.05 02/26/20 20:391

Arsenic, dissolved M200.8 ICP-MS mg/L 0.002U mfm0.0004* 02/20/20 11:232

Barium, dissolved M200.7 ICP 0.010 mg/L 0.04B jlw0.007 02/26/20 20:391

Cadmium, dissolved M200.8 ICP-MS mg/L 0.0003U enb0.00005 02/18/20 20:211

Calcium, dissolved M200.7 ICP 117 mg/L 0.5 jlw0.1 02/26/20 20:391

Chromium, dissolved M200.8 ICP-MS mg/L 0.002U enb0.0005 02/18/20 20:211

Cobalt, dissolved M200.8 ICP-MS 0.0046 mg/L 0.0003 enb0.00005 02/18/20 20:211

Copper, dissolved M200.7 ICP mg/L 0.05U jlw0.01 02/26/20 20:391

Iron, dissolved M200.7 ICP 0.04 mg/L 0.08B jlw0.03 02/26/20 20:391

Lead, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:211

Magnesium, dissolved M200.7 ICP 48.3 mg/L 1 jlw0.2 02/26/20 20:391

Manganese, dissolved M200.7 ICP 0.05 mg/L 0.05 jlw0.01 02/26/20 20:391

Molybdenum, dissolved M200.7 ICP mg/L 0.1U jlw0.02 02/26/20 20:391

Nickel, dissolved M200.7 ICP mg/L 0.04U jlw0.008 02/26/20 20:391

Potassium, dissolved M200.7 ICP 5.2 mg/L 1 jlw0.2 02/26/20 20:391

Selenium, dissolved M200.8 ICP-MS mg/L 0.0003U enb0.0001 02/18/20 20:211

Silver, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:211

Sodium, dissolved M200.7 ICP 268 mg/L 1 jlw0.2 02/26/20 20:391

Uranium, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001* 02/18/20 20:211

Zinc, dissolved M200.7 ICP mg/L 0.05U jlw0.01 02/26/20 20:391

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 50L57461-2003041359

Page 79: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-01

Sample ID: 17-VH-9

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 12:55

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

240 mg/L 20 emk2 02/18/20 0:001

Carbonate as CaCO3 mg/L 20U emk2 02/18/20 0:001

Hydroxide as CaCO3 mg/L 20U emk2 02/18/20 0:001

Total Alkalinity 240 mg/L 20 emk2 02/18/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 0.0 % calc03/04/20 0:00

Sum of Anions 22.0 meq/L calc03/04/20 0:00

Sum of Cations 22 meq/L calc03/04/20 0:00

Chloride SM4500Cl-E 11.4 mg/L 2 wtc0.5* 02/20/20 16:011

Fluoride SM4500F-C 0.5 mg/L 0.4 emk0.1 03/02/20 16:311

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.09 mg/L 0.1B pjb0.02* 03/04/20 2:001

Nitrogen, total Kjeldahl M351.2 - TKN by Block Digester 0.4 mg/L 0.5B pjb0.1* 02/28/20 0:371

Residue, Filterable (TDS) @180C

SM2540C 1470 mg/L 40 jck20* 02/17/20 12:301

Sulfate D516-02/-07/-11 - Turbidimetric 801 mg/L 250 mss250* 03/03/20 11:4850

TDS (calculated) Calculation 1400 mg/L calc03/04/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.05 calc03/04/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 50L57461-2003041359

Page 80: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-02

Sample ID: 30W-VH-12

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 09:05

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Inorganic Prep

XQDilution

Nitrogen, total Kjeldahl M351.2 - Block Digestor wtc02/26/20 11:53

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Aluminum, dissolved M200.7 ICP mg/L 1U jlw0.3 02/26/20 20:435

Arsenic, dissolved M200.8 ICP-MS mg/L 0.001U enb0.0002 02/18/20 20:241

Barium, dissolved M200.7 ICP mg/L 0.2U jlw0.04 02/26/20 20:435

Cadmium, dissolved M200.8 ICP-MS 0.00035 mg/L 0.0003 enb0.00005 02/18/20 20:241

Calcium, dissolved M200.7 ICP 540 mg/L 3 jlw0.5 02/26/20 20:435

Chromium, dissolved M200.8 ICP-MS mg/L 0.002U enb0.0005 02/18/20 20:241

Cobalt, dissolved M200.8 ICP-MS 0.0143 mg/L 0.0003 enb0.00005 02/18/20 20:241

Copper, dissolved M200.7 ICP mg/L 0.3U jlw0.05 02/26/20 20:435

Iron, dissolved M200.7 ICP 3.9 mg/L 0.4 jlw0.2 02/26/20 20:435

Lead, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:241

Magnesium, dissolved M200.7 ICP 198 mg/L 5 jlw1 02/26/20 20:435

Manganese, dissolved M200.7 ICP 1.72 mg/L 0.3 jlw0.05 02/26/20 20:435

Molybdenum, dissolved M200.7 ICP 0.3 mg/L 0.5B jlw0.1 02/26/20 20:435

Nickel, dissolved M200.7 ICP mg/L 0.2U jlw0.04 02/26/20 20:435

Potassium, dissolved M200.7 ICP 17 mg/L 5 jlw1 02/26/20 20:435

Selenium, dissolved M200.8 ICP-MS 0.0009 mg/L 0.0003 enb0.0001 02/18/20 20:241

Silver, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:241

Sodium, dissolved M200.7 ICP 418 mg/L 5 jlw1 02/26/20 20:435

Uranium, dissolved M200.8 ICP-MS 10.7 mg/L 0.1 mfm0.02 02/20/20 11:25200

Zinc, dissolved M200.7 ICP mg/L 0.3U jlw0.05 02/26/20 20:435

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 50L57461-2003041359

Page 81: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-02

Sample ID: 30W-VH-12

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 09:05

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

408 mg/L 20 emk2 02/18/20 0:001

Carbonate as CaCO3 mg/L 20U emk2 02/18/20 0:001

Hydroxide as CaCO3 mg/L 20U emk2 02/18/20 0:001

Total Alkalinity 408 mg/L 20 emk2 02/18/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -2.4 % calc03/04/20 0:00

Sum of Anions 65 meq/L calc03/04/20 0:00

Sum of Cations 62 meq/L calc03/04/20 0:00

Chloride SM4500Cl-E 284 mg/L 20 wtc5* 02/20/20 16:4410

Fluoride SM4500F-C 0.3 mg/L 0.4B emk0.1 03/02/20 16:411

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.11 mg/L 0.1 pjb0.02* 03/04/20 2:011

Nitrogen, total Kjeldahl M351.2 - TKN by Block Digester 0.3 mg/L 0.5B pjb0.1* 02/28/20 0:391

Residue, Filterable (TDS) @180C

SM2540C 4310 mg/L 80 mlh40 02/19/20 9:192

Sulfate D516-02/-07/-11 - Turbidimetric 2340 mg/L 500 mss2100* 03/03/20 11:49100

TDS (calculated) Calculation 4050 mg/L calc03/04/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.06 calc03/04/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 5 of 50L57461-2003041359

Page 82: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-03

Sample ID: 30W-VH-2

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 14:50

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Inorganic Prep

XQDilution

Nitrogen, total Kjeldahl M351.2 - Block Digestor wtc02/26/20 12:12

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Aluminum, dissolved M200.7 ICP mg/L 1U jlw0.3 02/26/20 20:465

Arsenic, dissolved M200.8 ICP-MS 0.0003 mg/L 0.001B enb0.0002 02/18/20 20:271

Barium, dissolved M200.7 ICP mg/L 0.2U jlw0.04 02/26/20 20:465

Cadmium, dissolved M200.8 ICP-MS 0.00017 mg/L 0.0003B enb0.00005 02/18/20 20:271

Calcium, dissolved M200.7 ICP 541 mg/L 3 jlw0.5 02/26/20 20:465

Chromium, dissolved M200.8 ICP-MS mg/L 0.002U enb0.0005 02/18/20 20:271

Cobalt, dissolved M200.8 ICP-MS 0.0152 mg/L 0.0003 enb0.00005 02/18/20 20:271

Copper, dissolved M200.7 ICP mg/L 0.3U jlw0.05 02/26/20 20:465

Iron, dissolved M200.7 ICP 3.9 mg/L 0.4 jlw0.2 02/26/20 20:465

Lead, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:271

Magnesium, dissolved M200.7 ICP 199 mg/L 5 jlw1 02/26/20 20:465

Manganese, dissolved M200.7 ICP 1.72 mg/L 0.3 jlw0.05 02/26/20 20:465

Molybdenum, dissolved M200.7 ICP 0.3 mg/L 0.5B jlw0.1 02/26/20 20:465

Nickel, dissolved M200.7 ICP mg/L 0.2U jlw0.04 02/26/20 20:465

Potassium, dissolved M200.7 ICP 17 mg/L 5 jlw1 02/26/20 20:465

Selenium, dissolved M200.8 ICP-MS 0.0012 mg/L 0.0003 enb0.0001 02/18/20 20:271

Silver, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:271

Sodium, dissolved M200.7 ICP 419 mg/L 5 jlw1 02/26/20 20:465

Uranium, dissolved M200.8 ICP-MS 11.0 mg/L 0.1 mfm0.02 02/20/20 11:27200

Zinc, dissolved M200.7 ICP mg/L 0.3U jlw0.05 02/26/20 20:465

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 6 of 50L57461-2003041359

Page 83: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-03

Sample ID: 30W-VH-2

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 14:50

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

422 mg/L 20 emk2 02/19/20 0:001

Carbonate as CaCO3 mg/L 20U emk2 02/19/20 0:001

Hydroxide as CaCO3 mg/L 20U emk2 02/19/20 0:001

Total Alkalinity 422 mg/L 20 emk2 02/19/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 6.8 % calc03/04/20 0:00

Sum of Anions 55 meq/L calc03/04/20 0:00

Sum of Cations 63 meq/L calc03/04/20 0:00

Chloride SM4500Cl-E 292 mg/L 20 wtc5* 02/20/20 16:4410

Fluoride SM4500F-C 0.2 mg/L 0.4B emk0.1 03/02/20 16:441

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.12 mg/L 0.1 pjb0.02* 03/04/20 2:021

Nitrogen, total Kjeldahl M351.2 - TKN by Block Digester 0.3 mg/L 0.5B pjb0.1* 02/28/20 0:421

Residue, Filterable (TDS) @180C

SM2540C 4320 mg/L 80 mlh40 02/19/20 9:222

Sulfate D516-02/-07/-11 - Turbidimetric 1820 mg/L 500 mss2100 03/03/20 12:49100

TDS (calculated) Calculation 3550 mg/L calc03/04/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.22 calc03/04/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 7 of 50L57461-2003041359

Page 84: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-04

Sample ID: 30W-VH-6

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 16:08

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Inorganic Prep

XQDilution

Nitrogen, total Kjeldahl M351.2 - Block Digestor wtc02/26/20 12:22

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Aluminum, dissolved M200.7 ICP mg/L 1U jlw0.3 02/26/20 20:565

Arsenic, dissolved M200.8 ICP-MS mg/L 0.001U enb0.0002* 02/18/20 20:431

Barium, dissolved M200.7 ICP mg/L 0.2U jlw0.04 02/26/20 20:565

Cadmium, dissolved M200.8 ICP-MS 0.00032 mg/L 0.0003 enb0.00005 02/18/20 20:431

Calcium, dissolved M200.7 ICP 544 mg/L 3 jlw0.5 02/26/20 20:565

Chromium, dissolved M200.8 ICP-MS mg/L 0.002U enb0.0005 02/18/20 20:431

Cobalt, dissolved M200.8 ICP-MS 0.0222 mg/L 0.0003 enb0.00005 02/18/20 20:431

Copper, dissolved M200.7 ICP mg/L 0.3U jlw0.05 02/26/20 20:565

Iron, dissolved M200.7 ICP mg/L 0.4U jlw0.2 02/26/20 20:565

Lead, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:431

Magnesium, dissolved M200.7 ICP 280 mg/L 5 jlw1 02/26/20 20:565

Manganese, dissolved M200.7 ICP 0.18 mg/L 0.3B jlw0.05 02/26/20 20:565

Molybdenum, dissolved M200.7 ICP mg/L 0.5U jlw0.1 02/26/20 20:565

Nickel, dissolved M200.7 ICP mg/L 0.2U jlw0.04 02/26/20 20:565

Potassium, dissolved M200.7 ICP 26 mg/L 5 jlw1 02/26/20 20:565

Selenium, dissolved M200.8 ICP-MS 0.001 mg/L 0.001 mfm0.0005 02/21/20 11:525

Silver, dissolved M200.8 ICP-MS mg/L 0.0005U enb0.0001 02/18/20 20:431

Sodium, dissolved M200.7 ICP 444 mg/L 5 jlw1 02/26/20 20:565

Uranium, dissolved M200.8 ICP-MS 1.22 mg/L 0.0005 enb0.0001* 02/18/20 20:431

Zinc, dissolved M200.7 ICP mg/L 0.3U jlw0.05 02/26/20 20:565

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 8 of 50L57461-2003041359

Page 85: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-04

Sample ID: 30W-VH-6

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 16:08

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

389 mg/L 20 emk2 02/19/20 0:001

Carbonate as CaCO3 mg/L 20U emk2 02/19/20 0:001

Hydroxide as CaCO3 mg/L 20U emk2 02/19/20 0:001

Total Alkalinity 389 mg/L 20 emk2 02/19/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 7.7 % calc03/04/20 0:00

Sum of Anions 60 meq/L calc03/04/20 0:00

Sum of Cations 70 meq/L calc03/04/20 0:00

Chloride SM4500Cl-E 418 mg/L 20 wtc5* 02/20/20 16:4410

Fluoride SM4500F-C 0.1 mg/L 0.4B emk0.1 03/02/20 16:481

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.10 mg/L 0.1 pjb0.02* 03/04/20 2:051

Nitrogen, total Kjeldahl M351.2 - TKN by Block Digester mg/L 0.5U pjb0.1* 02/28/20 0:431

Residue, Filterable (TDS) @180C

SM2540C 4760 mg/L 80 mlh40 02/19/20 9:242

Sulfate D516-02/-07/-11 - Turbidimetric 1940 mg/L 500 mss2100 03/03/20 12:52100

TDS (calculated) Calculation 3890 mg/L calc03/04/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.22 calc03/04/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 9 of 50L57461-2003041359

Page 86: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-05

Sample ID: 31-71

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 15:15

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 545 mg/L 3 jlw0.5 02/26/20 20:595

Magnesium, dissolved M200.7 ICP 250 mg/L 5 jlw1 02/26/20 20:595

Potassium, dissolved M200.7 ICP 2 mg/L 5B jlw1 02/26/20 20:595

Sodium, dissolved M200.7 ICP 371 mg/L 5 jlw1 02/26/20 20:595

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 518 mg/L 20 wtc5* 02/20/20 16:4410

Conductivity @25C SM2510B 4950 umhos/cm 10 emk1 02/19/20 0:381

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.03 mg/L 0.1B pjb0.02* 03/04/20 2:071

Residue, Filterable (TDS) @180C

SM2540C 4240 mg/L 200H eep100* 02/20/20 11:565

Sulfate D516-02/-07/-11 - Turbidimetric 1660 mg/L 500 mss2100 03/03/20 12:52100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 10 of 50L57461-2003041359

Page 87: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-06

Sample ID: 32-69

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 15:55

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 672 mg/L 5 jlw1 02/26/20 21:0210

Magnesium, dissolved M200.7 ICP 908 mg/L 10 jlw2 02/26/20 21:0210

Potassium, dissolved M200.7 ICP 17 mg/L 10 jlw2 02/26/20 21:0210

Sodium, dissolved M200.7 ICP 1590 mg/L 10 jlw2 02/26/20 21:0210

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 1720 mg/L 40 wtc10* 02/20/20 16:4620

Conductivity @25C SM2510B 12900 umhos/cm 10 emk1 02/19/20 0:401

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 8.8 mg/L 0.5 pjb0.1* 03/04/20 2:325

Residue, Filterable (TDS) @180C

SM2540C 11300 mg/L 200 jck100 02/17/20 12:465

Sulfate D516-02/-07/-11 - Turbidimetric 4510 mg/L 1000 mss2200 03/03/20 12:39200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 11 of 50L57461-2003041359

Page 88: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-07

Sample ID: 32-43N

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 16:37

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 700 mg/L 5 jlw1 02/26/20 21:0510

Magnesium, dissolved M200.7 ICP 1090 mg/L 10 jlw2 02/26/20 21:0510

Potassium, dissolved M200.7 ICP 16 mg/L 10 jlw2 02/26/20 21:0510

Sodium, dissolved M200.7 ICP 1240 mg/L 10 jlw2 02/26/20 21:0510

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 1880 mg/L 100 wtc30* 02/20/20 17:0050

Conductivity @25C SM2510B 12800 umhos/cm 10 emk1 02/19/20 0:421

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.11 mg/L 0.1 pjb0.02* 03/04/20 2:331

Residue, Filterable (TDS) @180C

SM2540C 11000 mg/L 200 jck100 02/17/20 12:495

Sulfate D516-02/-07/-11 - Turbidimetric 4330 mg/L 1000 mss2200 03/03/20 12:45200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 12 of 50L57461-2003041359

Page 89: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-08

Sample ID: 32-01R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 17:23

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 402 mg/L 10 jlw2 02/26/20 21:1520

Magnesium, dissolved M200.7 ICP 1330 mg/L 20 jlw4 02/26/20 21:1520

Potassium, dissolved M200.7 ICP 85 mg/L 20 jlw4 02/26/20 21:1520

Sodium, dissolved M200.7 ICP 1710 mg/L 20 jlw4 02/26/20 21:1520

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2160 mg/L 200 wtc40* 02/20/20 16:4880

Conductivity @25C SM2510B 21100 umhos/cm 10 emk1* 02/19/20 0:441

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02* 03/04/20 2:151

Residue, Filterable (TDS) @180C

SM2540C 23400 mg/L 2000H eep1000* 02/20/20 11:5850

Sulfate D516-02/-07/-11 - Turbidimetric 13700 mg/L 2000 mss2400 03/03/20 12:39400

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 13 of 50L57461-2003041359

Page 90: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-09

Sample ID: 32-60

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 11:03

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 606 mg/L 5 jlw1 02/26/20 21:1810

Magnesium, dissolved M200.7 ICP 1340 mg/L 10 jlw2 02/26/20 21:1810

Potassium, dissolved M200.7 ICP 18 mg/L 10 jlw2 02/26/20 21:1810

Sodium, dissolved M200.7 ICP 1700 mg/L 10 jlw2 02/26/20 21:1810

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2030 mg/L 200 wtc40* 02/20/20 16:4880

Conductivity @25C SM2510B 14900 umhos/cm 10 emk1 02/19/20 0:471

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 18.5 mg/L 1 pjb0.2* 03/04/20 2:3510

Residue, Filterable (TDS) @180C

SM2540C 13200 mg/L 200 jck100 02/17/20 12:545

Sulfate D516-02/-07/-11 - Turbidimetric 5850 mg/L 1000 mss2200 03/03/20 12:39200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 14 of 50L57461-2003041359

Page 91: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-10

Sample ID: S-21

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 08:05

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 641 mg/L 5 jlw1 02/26/20 21:2210

Magnesium, dissolved M200.7 ICP 1260 mg/L 10 jlw2 02/26/20 21:2210

Potassium, dissolved M200.7 ICP 14 mg/L 10 jlw2 02/26/20 21:2210

Sodium, dissolved M200.7 ICP 1760 mg/L 10 jlw2 02/26/20 21:2210

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2390 mg/L 200 wtc40* 02/20/20 16:4880

Conductivity @25C SM2510B 15400 umhos/cm 10 emk1 02/19/20 0:491

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 1.44 mg/L 0.1 pjb0.02* 03/04/20 2:361

Residue, Filterable (TDS) @180C

SM2540C 13100 mg/L 200 jck100 02/17/20 12:575

Sulfate D516-02/-07/-11 - Turbidimetric 5090 mg/L 1000 mss2200 03/03/20 12:39200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 15 of 50L57461-2003041359

Page 92: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-11

Sample ID: S-12

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 11:27

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 627 mg/L 5 jlw1 02/26/20 21:2510

Magnesium, dissolved M200.7 ICP 1240 mg/L 10 jlw2 02/26/20 21:2510

Potassium, dissolved M200.7 ICP 14 mg/L 10 jlw2 02/26/20 21:2510

Sodium, dissolved M200.7 ICP 1730 mg/L 10 jlw2 02/26/20 21:2510

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2570 mg/L 200 wtc40* 02/20/20 16:4880

Conductivity @25C SM2510B 15400 umhos/cm 10 emk1 02/19/20 0:511

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 1.24 mg/L 0.1 pjb0.02* 03/04/20 2:191

Residue, Filterable (TDS) @180C

SM2540C 13000 mg/L 200 mlh100 02/19/20 9:275

Sulfate D516-02/-07/-11 - Turbidimetric 5360 mg/L 1000 mss2200 03/03/20 12:41200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 16 of 50L57461-2003041359

Page 93: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-12

Sample ID: 5-73 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 12:46

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 736 mg/L 3 jlw0.5 02/26/20 21:285

Iron, dissolved M200.7 ICP 1.7 mg/L 0.4 jlw0.2 02/26/20 21:285

Magnesium, dissolved M200.7 ICP 439 mg/L 5 jlw1 02/26/20 21:285

Molybdenum, dissolved M200.8 ICP-MS 0.0048 mg/L 0.0005 enb0.0002 02/18/20 20:461

Nickel, dissolved M200.8 ICP-MS 0.0276 mg/L 0.001 enb0.0004 02/18/20 20:461

Potassium, dissolved M200.7 ICP 3 mg/L 5B jlw1 02/26/20 21:285

Selenium, dissolved SM 3114 B, AA-Hydride 0.175 mg/L 0.05 slm0.01 02/26/20 15:0510

Sodium, dissolved M200.7 ICP 821 mg/L 5 jlw1 02/26/20 21:285

Uranium, dissolved M200.8 ICP-MS 1.65 mg/L 0.0005 enb0.0001* 02/18/20 20:461

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

731 mg/L 20 emk2 02/19/20 0:001

Carbonate as CaCO3 mg/L 20U emk2 02/19/20 0:001

Hydroxide as CaCO3 mg/L 20U emk2 02/19/20 0:001

Total Alkalinity 731 mg/L 20 emk2 02/19/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -2.7 % calc03/04/20 0:00

Sum of Anions 115 meq/L calc03/04/20 0:00

Sum of Cations 109 meq/L calc03/04/20 0:00

Chloride SM4500Cl-E 1570 mg/L 40 wtc10* 02/20/20 16:4820

Conductivity @25C SM2510B 8530 umhos/cm 10 emk1 02/19/20 1:051

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 2.49 mg/L 0.1 pjb0.02* 03/04/20 2:201

Residue, Filterable (TDS) @180C

SM2540C 6830 mg/L 80 mlh40* 02/19/20 11:362

Sulfate D516-02/-07/-11 - Turbidimetric 2710 mg/L 500 mss2100 03/03/20 12:41100

TDS (calculated) Calculation 6730 mg/L calc03/04/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.01 calc03/04/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 17 of 50L57461-2003041359

Page 94: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-13

Sample ID: 31-65 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/14/20 11:11

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 598 mg/L 5 jlw1 02/26/20 21:3110

Iron, dissolved M200.7 ICP 179 mg/L 0.8 jlw0.3 02/26/20 21:3110

Magnesium, dissolved M200.7 ICP 1530 mg/L 10 jlw2 02/26/20 21:3110

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.005U mfm0.002 02/20/20 11:3410

Nickel, dissolved M200.8 ICP-MS 0.115 mg/L 0.01 mfm0.004 02/21/20 11:5410

Potassium, dissolved M200.7 ICP 49 mg/L 10 jlw2 02/26/20 21:3110

Selenium, dissolved SM 3114 B, AA-Hydride 0.0024 mg/L 0.005B slm0.001* 02/21/20 12:591

Sodium, dissolved M200.7 ICP 1840 mg/L 10 jlw2 02/26/20 21:3110

Uranium, dissolved M200.8 ICP-MS 0.079 mg/L 0.005 mfm0.001 02/21/20 11:5410

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

1680 mg/L 20 emk2 02/19/20 0:001

Carbonate as CaCO3 mg/L 20U emk2 02/19/20 0:001

Hydroxide as CaCO3 mg/L 20U emk2 02/19/20 0:001

Total Alkalinity 1680 mg/L 20 emk2* 02/19/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 1.0 % calc03/04/20 0:00

Sum of Anions 242 meq/L calc03/04/20 0:00

Sum of Cations 247 meq/L calc03/04/20 0:00

Chloride SM4500Cl-E 2170 mg/L 200 wtc40* 02/20/20 16:4880

Conductivity @25C SM2510B 16800 umhos/cm 10 emk1* 02/19/20 1:391

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.03 mg/L 0.1B pjb0.02* 03/04/20 2:231

Residue, Filterable (TDS) @180C

SM2540C 15200 mg/L 200 jck100 02/17/20 13:045

Sulfate D516-02/-07/-11 - Turbidimetric 7050 mg/L 2000 mss2400 03/03/20 12:46400

TDS (calculated) Calculation 14400 mg/L calc03/04/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.06 calc03/04/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 18 of 50L57461-2003041359

Page 95: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-14

Sample ID: 31-67-TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/14/20 10:23

Date Received: 02/15/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 686 mg/L 3 jlw0.5 02/26/20 21:355

Iron, dissolved M200.7 ICP 1.6 mg/L 0.4 jlw0.2 02/26/20 21:355

Magnesium, dissolved M200.7 ICP 653 mg/L 5 jlw1 02/26/20 21:355

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.003U mfm0.001 02/20/20 11:365

Nickel, dissolved M200.8 ICP-MS 0.007 mg/L 0.005 mfm0.002 02/21/20 11:565

Potassium, dissolved M200.7 ICP 16 mg/L 5 jlw1 02/26/20 21:355

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U slm0.001* 02/21/20 13:011

Sodium, dissolved M200.7 ICP 633 mg/L 5 jlw1 02/26/20 21:355

Uranium, dissolved M200.8 ICP-MS 0.0115 mg/L 0.003 mfm0.0005 02/21/20 11:565

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

889 mg/L 20 emk2 02/19/20 0:001

Carbonate as CaCO3 mg/L 20U emk2 02/19/20 0:001

Hydroxide as CaCO3 mg/L 20U emk2 02/19/20 0:001

Total Alkalinity 889 mg/L 20 emk2* 02/19/20 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -0.4 % calc03/04/20 0:00

Sum of Anions 117 meq/L calc03/04/20 0:00

Sum of Cations 116 meq/L calc03/04/20 0:00

Chloride SM4500Cl-E 1030 mg/L 40 ttg10* 03/02/20 13:0020

Conductivity @25C SM2510B 8150 umhos/cm 10 emk1 02/19/20 1:541

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003* 02/26/20 15:161

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02* 03/04/20 2:251

Residue, Filterable (TDS) @180C

SM2540C 7380 mg/L 80 jck40 02/17/20 13:072

Sulfate D516-02/-07/-11 - Turbidimetric 3360 mg/L 500 mss2100 03/03/20 12:39100

TDS (calculated) Calculation 6920 mg/L calc03/04/20 0:00

TDS (ratio - measured/calculated)

Calculation 1.07 calc03/04/20 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 19 of 50L57461-2003041359

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U The material was analyzed for, but was not detected above the level of the associated value.

The associated value is either the sample quantitation limit or the sample detection limit.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP001.03.15.02

Inorganic

Reference

Page 20 of 50L57461-2003041359

Page 97: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Alkalinity as CaCO3 SM2320B - Titration

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492029

WG492029PBW1 02/18/20 17:04PBW U -20 20mg/L

WG492029LCSW3 02/18/20 17:23 97LCSW WC200205-1 797 90 110mg/L820.0001

L57467-06DUP RA02/18/20 19:05 12.5DUP 11.9 5mg/L 20

WG492029LCSW6 02/18/20 20:42 98LCSW WC200205-1 802 90 110mg/L820.0001

WG492029PBW2 02/18/20 20:51PBW U -20 20mg/L

L57461-02DUP 02/18/20 23:48 408DUP 409 0mg/L 20

WG492029LCSW9 02/19/20 0:07 98LCSW WC200205-1 806 90 110mg/L820.0001

WG492029PBW3 02/19/20 0:15PBW U -20 20mg/L

L57461-12DUP 02/19/20 1:19 731DUP 730 0mg/L 20

WG492029LCSW12 02/19/20 3:26 100LCSW WC200205-1 820 90 110mg/L820.0001

WG492029PBW4 02/19/20 3:35PBW U -20 20mg/L

WG492029LCSW15 02/19/20 13:32 101LCSW WC200205-1 829 90 110mg/L820.0001

Aluminum, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 98ICV II200210-2 1.96 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.15 0.15mg/L

WG492528LFB 02/26/20 20:36 103LFB II200224-2 1.032 85 115mg/L1.0012

L57461-03AS 02/26/20 20:49 U 102AS II200224-2 5.12 85 115mg/L5.006

L57461-03ASD 02/26/20 20:52 U 101ASD II200224-2 5.08 185 115mg/L 205.006

Arsenic, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 99ICV MS200210-2 .04947 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB U -0.00044 0.00044mg/L

WG492030LFB 02/18/20 19:22 101LFB MS200120-3 .05069 85 115mg/L.05005

L57461-03AS 02/18/20 20:37 .0003 102AS MS200120-3 .0514 70 130mg/L.05005

L57461-03ASD 02/18/20 20:40 .0003 101ASD MS200120-3 .05095 170 130mg/L 20.05005

WG492130

WG492130ICV 02/20/20 10:45 102ICV MS200210-2 .0509 90 110mg/L.05

WG492130ICB 02/20/20 10:47ICB U -0.00044 0.00044mg/L

WG492130LFB 02/20/20 10:49 95LFB MS200120-3 .04767 85 115mg/L.05005

L57460-02AS 02/20/20 11:20 .001 99AS MS200120-3 .10049 70 130mg/L.1001

L57460-02ASD 02/20/20 11:22 .001 93ASD MS200120-3 .09439 670 130mg/L 20.1001

Barium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 99ICV II200210-2 1.979 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.021 0.021mg/L

WG492528LFB 02/26/20 20:36 102LFB II200224-2 .5089 85 115mg/L.5005

L57461-03AS 02/26/20 20:49 U 101AS II200224-2 2.524 85 115mg/L2.5025

L57461-03ASD 02/26/20 20:52 U 100ASD II200224-2 2.508 185 115mg/L 202.5025

Page 21 of 50L57461-2003041359

Page 98: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Cadmium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 99ICV MS200210-2 .04967 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB U -0.00011 0.00011mg/L

WG492030LFB 02/18/20 19:22 100LFB MS200120-3 .04992 85 115mg/L.05005

L57461-03AS 02/18/20 20:37 .00017 85AS MS200120-3 .04254 70 130mg/L.05005

L57461-03ASD 02/18/20 20:40 .00017 90ASD MS200120-3 .04514 670 130mg/L 20.05005

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 97ICV II200210-2 96.95 95 105mg/L100

WG492528ICB 02/26/20 20:23ICB U -0.3 0.3mg/L

WG492528LFB 02/26/20 20:36 104LFB II200224-2 70.94 85 115mg/L68.00334

L57461-03AS 02/26/20 20:49 541 103AS II200224-2 890.5 85 115mg/L340.0167

L57461-03ASD 02/26/20 20:52 541 103ASD II200224-2 890 085 115mg/L 20340.0167

L57503-03AS 02/26/20 21:58 U 102AS II200224-2 69.33 85 115mg/L68.00334

L57503-03ASD 02/26/20 22:01 U 102ASD II200224-2 69.4 085 115mg/L 2068.00334

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492182

WG492182ICB 02/20/20 10:27ICB U -1.5 1.5mg/L

WG492182ICV 02/20/20 10:27 103ICV WI190501-1 56.21 90 110mg/L54.835

WG492182LFB1 02/20/20 16:01 107LFB WI190812-3 31.96 90 110mg/L30

L57457-01DUP RA02/20/20 16:01 4.4DUP 4.3 2mg/L 20

L57457-02AS 02/20/20 16:01 7.8 103AS WI190812-3 38.63 90 110mg/L30

WG492182LFB2 02/20/20 16:05 106LFB WI190812-3 31.68 90 110mg/L30

L57461-06DUP 02/20/20 16:46 1720DUP 1745 1mg/L 20

L57461-07AS M302/20/20 17:00 1880 47AS 50XCL 1894 90 110mg/L30

WG492768

WG492768ICB 03/02/20 9:32ICB U -1.5 1.5mg/L

WG492768ICV 03/02/20 9:32 103ICV WI190501-1 56.74 90 110mg/L54.835

WG492768LFB1 03/02/20 12:29 110LFB WI190812-3 32.94 90 110mg/L30

L57516-01DUP 03/02/20 12:29 25.7DUP 25.64 0mg/L 20

WG492768LFB2 03/02/20 12:59 110LFB WI190812-3 32.93 90 110mg/L30

L57515-04AS M203/02/20 13:00 91 87AS 10XCL 117.1 90 110mg/L30

Chromium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 105ICV MS200210-2 .05266 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB U -0.0011 0.0011mg/L

WG492030LFB 02/18/20 19:22 101LFB MS200120-3 .05053 85 115mg/L.05005

L57461-03AS 02/18/20 20:37 U 91AS MS200120-3 .04539 70 130mg/L.05005

L57461-03ASD 02/18/20 20:40 U 89ASD MS200120-3 .04469 270 130mg/L 20.05005

Page 22 of 50L57461-2003041359

Page 99: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Cobalt, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 103ICV MS200210-2 .05166 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB U -0.00011 0.00011mg/L

WG492030LFB 02/18/20 19:22 98LFB MS200120-3 .0488 85 115mg/L.05005

L57461-03AS 02/18/20 20:37 .01521 89AS MS200120-3 .05996 70 130mg/L.05005

L57461-03ASD 02/18/20 20:40 .01521 92ASD MS200120-3 .06107 270 130mg/L 20.05005

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492029

WG492029LCSW2 02/18/20 17:10 102LCSW PCN60028 1440 90 110umhos/cm1408

L57467-06DUP 02/18/20 19:05 40DUP 38.9 3umhos/cm 20

WG492029LCSW5 02/18/20 20:30 102LCSW PCN60028 1430 90 110umhos/cm1408

L57461-02DUP 02/18/20 23:48 4650DUP 4660 0umhos/cm 20

WG492029LCSW8 02/18/20 23:54 102LCSW PCN60028 1430 90 110umhos/cm1408

L57461-12DUP 02/19/20 1:19 8530DUP 8530 0umhos/cm 20

WG492029LCSW11 02/19/20 3:14 102LCSW PCN60028 1430 90 110umhos/cm1408

WG492029LCSW14 02/19/20 13:19 102LCSW PCN60028 1440 90 110umhos/cm1408

Copper, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 96ICV II200210-2 1.922 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.03 0.03mg/L

WG492528LFB 02/26/20 20:36 101LFB II200224-2 .509 85 115mg/L.502

L57461-03AS 02/26/20 20:49 U 99AS II200224-2 2.48 85 115mg/L2.51

L57461-03ASD 02/26/20 20:52 U 98ASD II200224-2 2.472 085 115mg/L 202.51

Cyanide, Total D7511-09

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492412

WG492412ICV 02/26/20 14:58 97ICV WI200216-5 .2919 90 110mg/L.3

WG492412ICB 02/26/20 15:00ICB U -0.003 0.003mg/L

L57460-01AS 02/26/20 15:10 U 93AS WI200216-6 .0933 84 116mg/L.1

L57460-01ASD R402/26/20 15:12 U 119ASD WI200216-6 .1185 2484 116mg/L 20.1

WG492412LFB 02/26/20 15:18 103LFB WI200216-6 .1029 84 116mg/L.1

WG492412ICV1 02/27/20 13:25 94ICV WI200216-5 .2812 90 110mg/L.3

WG492412ICB1 02/27/20 13:27ICB U -0.003 0.003mg/L

Page 23 of 50L57461-2003041359

Page 100: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Fluoride SM4500F-C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492746

WG492746ICV 03/02/20 10:52 101ICV WC200227-7 2.03 90 110mg/L2.004

WG492746ICB 03/02/20 10:55ICB U -0.3 0.3mg/L

WG492800

WG492800ICV 03/02/20 15:21 103ICV WC200227-7 2.06 90 110mg/L2.004

WG492800ICB 03/02/20 15:26ICB U -0.3 0.3mg/L

WG492800LFB1 03/02/20 15:33 99LFB WC191014-1 4.98 90 110mg/L5.01

L57461-01AS 03/02/20 16:34 .5 94AS WC191014-1 5.19 90 110mg/L5.01

L57461-01ASD 03/02/20 16:37 .5 94ASD WC191014-1 5.23 190 110mg/L 205.01

WG492800LFB2 03/02/20 17:39 100LFB WC191014-1 5.02 90 110mg/L5.01

Iron, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 95ICV II200210-2 1.901 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.09 0.09mg/L

WG492528LFB 02/26/20 20:36 103LFB II200224-2 1.032 85 115mg/L1.0018

L57461-03AS 02/26/20 20:49 3.9 101AS II200224-2 8.94 85 115mg/L5.009

L57461-03ASD 02/26/20 20:52 3.9 101ASD II200224-2 8.96 085 115mg/L 205.009

L57503-03AS 02/26/20 21:58 U 100AS II200224-2 1.003 85 115mg/L1.0018

L57503-03ASD 02/26/20 22:01 U 101ASD II200224-2 1.007 085 115mg/L 201.0018

Lead, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 100ICV MS200210-2 .04986 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB U -0.00022 0.00022mg/L

WG492030LFB 02/18/20 19:22 94LFB MS200120-3 .04705 85 115mg/L.05005

L57461-03AS 02/18/20 20:37 U 96AS MS200120-3 .04813 70 130mg/L.05005

L57461-03ASD 02/18/20 20:40 U 95ASD MS200120-3 .04776 170 130mg/L 20.05005

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 97ICV II200210-2 97.17 95 105mg/L100

WG492528ICB 02/26/20 20:23ICB U -0.6 0.6mg/L

WG492528LFB 02/26/20 20:36 103LFB II200224-2 51.53 85 115mg/L49.99771

L57461-03AS 02/26/20 20:49 199 101AS II200224-2 452.1 85 115mg/L249.98855

L57461-03ASD 02/26/20 20:52 199 101ASD II200224-2 451 085 115mg/L 20249.98855

L57503-03AS 02/26/20 21:58 U 101AS II200224-2 50.74 85 115mg/L49.99771

L57503-03ASD 02/26/20 22:01 U 101ASD II200224-2 50.69 085 115mg/L 2049.99771

Page 24 of 50L57461-2003041359

Page 101: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Manganese, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 97ICV II200210-2 1.93 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.03 0.03mg/L

WG492528LFB 02/26/20 20:36 107LFB II200224-2 .535 85 115mg/L.5015

L57461-03AS 02/26/20 20:49 1.72 105AS II200224-2 4.342 85 115mg/L2.5075

L57461-03ASD 02/26/20 20:52 1.72 104ASD II200224-2 4.322 085 115mg/L 202.5075

Molybdenum, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 98ICV II200210-2 1.957 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.06 0.06mg/L

WG492528LFB 02/26/20 20:36 104LFB II200224-2 .519 85 115mg/L.4995

L57461-03AS 02/26/20 20:49 .3 102AS II200224-2 2.84 85 115mg/L2.4975

L57461-03ASD 02/26/20 20:52 .3 102ASD II200224-2 2.85 085 115mg/L 202.4975

Molybdenum, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 103ICV MS200210-2 .02059 90 110mg/L.0199

WG492030ICB 02/18/20 19:19ICB U -0.00044 0.00044mg/L

WG492030LFB 02/18/20 19:22 95LFB MS200120-3 .04768 85 115mg/L.0501

L57461-03AS 02/18/20 20:37 .31 81AS MS200120-3 .3505 70 130mg/L.0501

L57461-03ASD 02/18/20 20:40 .31 74ASD MS200120-3 .3469 170 130mg/L 20.0501

WG492130

WG492130ICV 02/20/20 10:45 104ICV MS200210-2 .02074 90 110mg/L.0199

WG492130ICB 02/20/20 10:47ICB U -0.00044 0.00044mg/L

WG492130LFB 02/20/20 10:49 97LFB MS200120-3 .04857 85 115mg/L.0501

L57460-02AS 02/20/20 11:20 .0024 106AS MS200120-3 .10828 70 130mg/L.1002

L57460-02ASD 02/20/20 11:22 .0024 95ASD MS200120-3 .09796 1070 130mg/L 20.1002

Page 25 of 50L57461-2003041359

Page 102: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Nickel, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 96ICV II200210-2 1.9285 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.024 0.024mg/L

WG492528LFB 02/26/20 20:36 103LFB II200224-2 .5163 85 115mg/L.501

L57461-03AS 02/26/20 20:49 U 100AS II200224-2 2.494 85 115mg/L2.505

L57461-03ASD 02/26/20 20:52 U 100ASD II200224-2 2.499 085 115mg/L 202.505

Nickel, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 104ICV MS200210-2 .0521 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB U -0.00088 0.00088mg/L

WG492030LFB 02/18/20 19:22 103LFB MS200120-3 .0516 85 115mg/L.05

L57461-03AS 02/18/20 20:37 .0098 81AS MS200120-3 .05026 70 130mg/L.05

L57461-03ASD 02/18/20 20:40 .0098 83ASD MS200120-3 .05123 270 130mg/L 20.05

WG492218

WG492218ICV 02/21/20 11:36 101ICV MS200210-2 .05073 90 110mg/L.05

WG492218ICB 02/21/20 11:38ICB U -0.00088 0.00088mg/L

WG492218LFB 02/21/20 11:40 95LFB MS200120-3 .04736 85 115mg/L.05

L52843-34AS 02/21/20 11:45 .0058 90AS MS200120-3 .05071 70 130mg/L.05

L52843-34ASD 02/21/20 11:47 .0058 93ASD MS200120-3 .05215 370 130mg/L 20.05

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492916

WG492916ICV 03/03/20 23:52 100ICV WI200213-7 2.404 90 110mg/L2.416

WG492916ICB 03/03/20 23:53ICB U -0.02 0.02mg/L

WG492918

WG492918LFB1 03/04/20 1:41 101LFB WI191004-3 2.011 90 110mg/L2

L57457-01AS 03/04/20 1:44 U 99AS WI191004-3 1.985 90 110mg/L2

L57457-02DUP RA03/04/20 1:47 UDUP U 0mg/L 20

L57461-03AS 03/04/20 2:03 .12 91AS WI191004-3 1.94 90 110mg/L2

L57461-04DUP RA03/04/20 2:06 .1DUP .104 4mg/L 20

WG492918LFB2 03/04/20 2:22 95LFB WI191004-3 1.895 90 110mg/L2

L57461-13AS 03/04/20 2:24 .03 95AS WI191004-3 1.938 90 110mg/L2

L57461-14DUP RA03/04/20 2:27 UDUP U 0mg/L 20

Nitrogen, total Kjeldahl M351.2 - TKN by Block Digester

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492653

WG492653ICV 02/28/20 0:33 103ICV WI200128-5 4.11 90 110mg/L4

WG492653ICB 02/28/20 0:34ICB U -0.1 0.1mg/L

WG492496LRB 02/28/20 0:35LRB U -0.1 0.1mg/L

WG492496LFB 02/28/20 0:36 98LFB WI200128-4 2.46 90 110mg/L2.5

L57461-01DUP RA02/28/20 0:38 .4DUP .47 16mg/L 20

L57461-02LFM 02/28/20 0:41 .3 108LFM WI200128-4 3.01 90 110mg/L2.5

Page 26 of 50L57461-2003041359

Page 103: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 99ICV II200210-2 19.71 95 105mg/L20

WG492528ICB 02/26/20 20:23ICB U -0.6 0.6mg/L

WG492528LFB 02/26/20 20:36 104LFB II200224-2 103.8 85 115mg/L99.95798

L57461-03AS 02/26/20 20:49 17 102AS II200224-2 528.5 85 115mg/L499.7899

L57461-03ASD 02/26/20 20:52 17 102ASD II200224-2 527.5 085 115mg/L 20499.7899

L57503-03AS 02/26/20 21:58 U 102AS II200224-2 101.9 85 115mg/L99.95798

L57503-03ASD 02/26/20 22:01 U 101ASD II200224-2 100.8 185 115mg/L 2099.95798

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG491911

WG491911PBW 02/17/20 12:10PBW U -40 40mg/L

WG491911LCSW 02/17/20 12:12 103LCSW PCN60394 994 80 120mg/L963

L57461-14DUP 02/17/20 13:10 7380DUP 7340 1mg/L 10

WG492050

WG492050PBW 02/19/20 8:30PBW U -40 40mg/L

WG492050LCSW 02/19/20 8:32 104LCSW PCN60395 1000 80 120mg/L963

L57461-11DUP 02/19/20 9:30 13000DUP 12600 3mg/L 10

WG492078

WG492078PBW 02/19/20 10:39PBW U -40 40mg/L

WG492078LCSW 02/19/20 10:41 103LCSW PCN60395 990 80 120mg/L963

L52842-34DUP RA02/19/20 11:33 UDUP U 0mg/L 10

WG492143

WG492143PBW 02/20/20 11:35PBW U -40 40mg/L

WG492143LCSW 02/20/20 11:37 105LCSW PCN60395 1010 80 120mg/L963

L57493-01DUP 02/20/20 12:03 528DUP 524 1mg/L 10

Page 27 of 50L57461-2003041359

Page 104: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Selenium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 102ICV MS200210-2 .05109 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB .00017 -0.00022 0.00022mg/L

WG492030LFB 02/18/20 19:22 99LFB MS200120-3 .04969 85 115mg/L.05

L57461-03AS 02/18/20 20:37 .0012 128AS MS200120-3 .06522 70 130mg/L.05

L57461-03ASD 02/18/20 20:40 .0012 127ASD MS200120-3 .06487 170 130mg/L 20.05

WG492218

WG492218ICV 02/21/20 11:36 104ICV MS200210-2 .05185 90 110mg/L.05

WG492218ICB 02/21/20 11:38ICB U -0.00022 0.00022mg/L

WG492218LFB 02/21/20 11:40 95LFB MS200120-3 .04761 85 115mg/L.05

L52843-34AS 02/21/20 11:45 .0034 100AS MS200120-3 .05353 70 130mg/L.05

L52843-34ASD 02/21/20 11:47 .0034 105ASD MS200120-3 .05591 470 130mg/L 20.05

Selenium, dissolved SM 3114 B, AA-Hydride

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492117

WG492117ICV 02/21/20 11:21 105ICV SE200103-2 .0264 90 110mg/L.025025

WG492117ICB 02/21/20 11:23ICB U -0.003 0.003mg/L

WG492118

WG492118ICB 02/21/20 12:49ICB U -0.003 0.003mg/L

WG492118LRB 02/21/20 12:55LRB U -0.003 0.003mg/L

WG492118LFB 02/21/20 12:57 100LFB SE200103-4 .0222 85 115mg/L.02224

L57461-14LFM M202/21/20 13:03 U 82LFM SE200103-4 .0182 85 115mg/L.02224

L57461-14LFMD 02/21/20 13:05 U 84LFMD SE200103-4 .0186 285 115mg/L 20.02224

WG492517

WG492517ICV 02/26/20 14:57 105ICV SE200103-2 .0264 90 110mg/L.025025

WG492517ICB 02/26/20 14:59ICB U -0.003 0.003mg/L

WG492517LRB 02/26/20 15:01LRB U -0.003 0.003mg/L

WG492517LFB 02/26/20 15:03 106LFB SE200103-4 .0235 85 115mg/L.02224

L57542-01LFM 02/26/20 15:09 U 102LFM SE20XPREP .455 85 115mg/L.4448

L57542-01LFMD 02/26/20 15:12 U 102LFMD SE20XPREP .453 085 115mg/L 20.4448

Silver, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 101ICV MS200210-2 .02024 90 110mg/L.02004

WG492030ICB 02/18/20 19:19ICB U -0.00022 0.00022mg/L

WG492030LFB 02/18/20 19:22 95LFB MS200120-3 .00956 85 115mg/L.01002

L57461-03AS 02/18/20 20:37 U 86AS MS200120-3 .00863 70 130mg/L.01002

L57461-03ASD 02/18/20 20:40 U 86ASD MS200120-3 .00862 070 130mg/L 20.01002

Page 28 of 50L57461-2003041359

Page 105: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 98ICV II200210-2 98.19 95 105mg/L100

WG492528ICB 02/26/20 20:23ICB U -0.6 0.6mg/L

WG492528LFB 02/26/20 20:36 103LFB II200224-2 102.8 85 115mg/L100.0046

L57461-03AS 02/26/20 20:49 419 101AS II200224-2 925.5 85 115mg/L500.023

L57461-03ASD 02/26/20 20:52 419 100ASD II200224-2 919 185 115mg/L 20500.023

L57503-03AS 02/26/20 21:58 U 101AS II200224-2 100.6 85 115mg/L100.0046

L57503-03ASD 02/26/20 22:01 U 100ASD II200224-2 99.99 185 115mg/L 20100.0046

Sulfate D516-02/-07/-11 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492831

WG492831ICB 03/03/20 10:18ICB U -3 3mg/L

WG492831ICV 03/03/20 10:18 99ICV WI200219-1 19.8 90 110mg/L20

WG492831LFB 03/03/20 11:33 97LFB WI190801-3 9.7 90 110mg/L10.01

L57458-02DUP 03/03/20 11:55 3490DUP 3690 6mg/L 20

L57461-01AS M303/03/20 11:57 801 -570AS SO4TURB50X 744 90 110mg/L10

WG492860

WG492860ICB 03/03/20 10:18ICB U -3 3mg/L

WG492860ICV 03/03/20 10:18 99ICV WI200219-1 19.8 90 110mg/L20

WG492860LFB 03/03/20 12:12 97LFB WI190801-3 9.7 90 110mg/L10.01

L57461-14DUP 03/03/20 12:39 3360DUP 3400 1mg/L 20

L57487-01AS 03/03/20 12:47 2060 110AS SO4TURB20X 2170 90 110mg/L100

L57461-03DUP 03/03/20 12:49 1820DUP 1810 1mg/L 20

L57461-04AS 03/03/20 12:52 1940 100AS SO4TURB 1950 90 110mg/L10

Uranium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492030

WG492030ICV 02/18/20 19:16 102ICV MS200210-2 .05094 90 110mg/L.05

WG492030ICB 02/18/20 19:19ICB U -0.00022 0.00022mg/L

WG492030LFB 02/18/20 19:22 96LFB MS200120-3 .04814 85 115mg/L.05

L57461-03AS M302/18/20 20:37 10.1 -100AS MS200120-3 10.05 70 130mg/L.05

L57461-03ASD M302/18/20 20:40 10.1 -300ASD MS200120-3 9.95 170 130mg/L 20.05

WG492130

WG492130ICV 02/20/20 10:45 105ICV MS200210-2 .05242 90 110mg/L.05

WG492130ICB 02/20/20 10:47ICB U -0.00022 0.00022mg/L

WG492130LFB 02/20/20 10:49 97LFB MS200120-3 .04853 85 115mg/L.05

L57460-02AS 02/20/20 11:20 .0006 110AS MS200120-3 .11094 70 130mg/L.1

L57460-02ASD 02/20/20 11:22 .0006 100ASD MS200120-3 .10051 1070 130mg/L 20.1

WG492218

WG492218ICV 02/21/20 11:36 101ICV MS200210-2 .05048 90 110mg/L.05

WG492218ICB 02/21/20 11:38ICB U -0.00022 0.00022mg/L

WG492218LFB 02/21/20 11:40 93LFB MS200120-3 .04673 85 115mg/L.05

L52843-34AS 02/21/20 11:45 U 95AS MS200120-3 .0474 70 130mg/L.05

L52843-34ASD 02/21/20 11:47 U 98ASD MS200120-3 .04907 370 130mg/L 20.05

Page 29 of 50L57461-2003041359

Page 106: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Zinc, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492528

WG492528ICV 02/26/20 20:17 98ICV II200210-2 1.952 95 105mg/L2

WG492528ICB 02/26/20 20:23ICB U -0.03 0.03mg/L

WG492528LFB 02/26/20 20:36 108LFB II200224-2 .539 85 115mg/L.50075

L57461-03AS 02/26/20 20:49 U 105AS II200224-2 2.635 85 115mg/L2.50375

L57461-03ASD 02/26/20 20:52 U 105ASD II200224-2 2.639 085 115mg/L 202.50375

Page 30 of 50L57461-2003041359

Page 107: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57461Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

DB Sample required dilution due to low bias result.M200.8 ICP-MSArsenic, dissolvedWG4921301L57461-01

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG492182

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M351.2 - TKN by Block DigesterNitrogen, total KjeldahlWG492653

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density did not meet method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG491911

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG492831

BE Target analyte in continuing calibration blank (CCB) at or above the acceptance criteria. Target analyte was not detected in the sample [< MDL].

M200.8 ICP-MSUranium, dissolvedWG492030

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.8 ICP-MS

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG4921822L57461-02

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M351.2 - TKN by Block DigesterNitrogen, total KjeldahlWG492653

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG492831

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG4921823L57461-03

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M351.2 - TKN by Block DigesterNitrogen, total KjeldahlWG492653

REPAD.15.06.05.01

Page 31 of 50L57461-2003041359

Page 108: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57461Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

VC CCV recovery was above the acceptance limits. Target analyte was not detected in the sample [< MDL].

M200.8 ICP-MSArsenic, dissolvedWG4920304L57461-04

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG492182

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M351.2 - TKN by Block DigesterNitrogen, total KjeldahlWG492653

BB Target analyte detected in calibration blank at or above acceptance limit. Sample value was > 10X the concentration in the calibration blank.

M200.8 ICP-MSUranium, dissolvedWG492030

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.8 ICP-MS

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4921825L57461-05

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

HE Analysis performed past holding time. Method holding time is less than or equal to 7 days and sample was received with less than half of the holding time remaining (refer to item C5 of ACZ's Terms & Conditions).

SM2540CResidue, Filterable (TDS) @180CWG492143

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4921826L57461-06

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4921827L57461-07

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4921828L57461-08

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG492029

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

HE Analysis performed past holding time. Method holding time is less than or equal to 7 days and sample was received with less than half of the holding time remaining (refer to item C5 of ACZ's Terms & Conditions).

SM2540CResidue, Filterable (TDS) @180CWG492143

Q12 A filtered sample was used for analysis because an unfiltered sample was not available.

SM2540C

REPAD.15.06.05.01

Page 32 of 50L57461-2003041359

Page 109: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57461Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4921829L57461-09

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG49218210L57461-10

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG49218211L57461-11

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG49218212L57461-12

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2540CResidue, Filterable (TDS) @180CWG492078

BB Target analyte detected in calibration blank at or above acceptance limit. Sample value was > 10X the concentration in the calibration blank.

M200.8 ICP-MSUranium, dissolvedWG492030

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.8 ICP-MS

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG49218213L57461-13

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG492029

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG492118

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2320B - TitrationTotal AlkalinityWG492029

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2320B - Titration

REPAD.15.06.05.01

Page 33 of 50L57461-2003041359

Page 110: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57461Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG49276814L57461-14

Q3 Sample received with improper or inadequate chemical preservation.

D7511-09Cyanide, TotalWG492412

R4 RPD for a spike and spike duplicate exceeded the method or laboratory acceptance limit. At a minimum, one spike recovery met acceptance criteria.

D7511-09

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG492918

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG492118

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2320B - TitrationTotal AlkalinityWG492029

REPAD.15.06.05.01

Page 34 of 50L57461-2003041359

Page 111: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-01

Sample ID: 17-VH-9

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/10/20 12:55

Date Received: 02/15/20

Locator:

RadioChemistry

Analytical Results

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 1.2 0.13 0.08 pCi/L jlg02/25/20 0:18

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 2.7 0.87 1.9 pCi/L * isn02/25/20 14:39

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 35 of 50L57461-2003041359

Page 112: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-02

Sample ID: 30W-VH-12

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/13/20 9:05

Date Received: 02/15/20

Locator:

RadioChemistry

Analytical Results

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 41 0.88 0.12 pCi/L jlg02/25/20 0:20

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 2.5 0.82 1.8 pCi/L * isn02/25/20 14:40

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 36 of 50L57461-2003041359

Page 113: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-03

Sample ID: 30W-VH-2

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/13/20 14:50

Date Received: 02/15/20

Locator:

RadioChemistry

Analytical Results

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 43 0.81 0.35 pCi/L jlg02/25/20 0:21

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 2.6 0.9 2 pCi/L * isn02/25/20 14:40

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 37 of 50L57461-2003041359

Page 114: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-04

Sample ID: 30W-VH-6

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/13/20 16:08

Date Received: 02/15/20

Locator:

RadioChemistry

Analytical Results

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 1.5 0.16 0.07 pCi/L jlg02/25/20 0:23

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 0.64 0.8 1.8 pCi/L * isn02/25/20 14:40

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 38 of 50L57461-2003041359

Page 115: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-12

Sample ID: 5-73 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/13/20 12:46

Date Received: 02/15/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 860 100 75 pCi/L amk03/01/20 0:24

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 3.7 2.7 7.5 pCi/L * jlg02/26/20 15:47

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.47 0.14 0.15 pCi/L * jlg02/25/20 0:24

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 1.2 1.4 3.3 pCi/L * isn02/25/20 14:40

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.225 0.28 0.47 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 39 of 50L57461-2003041359

Page 116: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-13

Sample ID: 31-65 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/14/20 11:11

Date Received: 02/15/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 59 53 420 pCi/L * amk03/01/20 0:25

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 1 3.5 9.5 pCi/L * jlg02/27/20 11:15

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.58 0.21 0.24 pCi/L * jlg02/25/20 0:25

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 1.2 1.6 4.2 pCi/L * isn02/28/20 12:23

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.0613 0.25 0.53 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 40 of 50L57461-2003041359

Page 117: ACZ Laboratories, Inc.

ACZ Sample ID: L57461-14

Sample ID: 31-67-TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/14/20 10:23

Date Received: 02/15/20

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected 11 pCi/L calc03/04/20 12:54

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 19 24 200 pCi/L amk03/01/20 0:27

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved -0.39 2.6 7.1 pCi/L * jlg02/27/20 11:15

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 2.6 0.26 0.17 pCi/L * jlg02/25/20 0:27

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 12 1.2 1.9 pCi/L * isn02/28/20 12:23

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.296 0.31 0.5 pCi/L * djc02/20/20 11:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 41 of 50L57461-2003041359

Page 118: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Error(+/-) Calculated sample specific uncertainty

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

LCL Lower Control Limit, in % (except for LCSS, mg/Kg)

LLD Calculated sample specific Lower Limit of Detection

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit

QC True Value of the Control Sample or the amount added to the Spike

Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg)

RER Relative Error Ratio, calculation used for Dup. QC taking into account the error factor.

RPD Relative Percent Difference, calculation used for Duplicate QC Types

UCL Upper Control Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

DUP Sample Duplicate MS/MSD Matrix Spike/Matrix Spike Duplicate

LCSS Laboratory Control Sample - Soil PBS Prep Blank - Soil

LCSW Laboratory Control Sample - Water PBW Prep Blank - Water

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Matrix Spikes Determines sample matrix interferences, if any.

ACZ Qualifiers (Qual)

H Analysis exceeded method hold time.

Method Prefix Reference

M EPA methodology, including those under SDWA, CWA, and RCRA

SM Standard Methods for the Examination of Water and Wastewater.

D ASTM

RP DOE

ESM DOE/ESM

Comments

(1) Solid matrices are reported on a dry weight basis.

(2) Preparation method: "Method" indicates preparation defined in analytical method.

(3) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification

qualifier associated with the result.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP003.09.12.01

Radiochemistry

Reference

Page 42 of 50L57461-2003041359

Page 119: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Gross Alpha, dissolved M9310

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG492081

WG492081PBW 03/01/20PBW .16 1.780.67 0.89

WG492081LCSWA 03/01/20 120LCSW PCN60283 120100 67 1449.3 1.5

L57316-02DUP 03/01/20 1.4DUP-RPD 1.5 201.92 136.7 7

L57316-02MSA 03/01/20 1.4 87MS PCN60283 88100 67 144102 6.26.7

L57462-03DUP 03/01/20 3.2DUP-RPD 3.5 202.12.1 1.61.7 9

Lead 210, dissolved EICHROM, OTW01

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG492088

WG492088LCSW 02/26/20 102LCSW PCN59631 10098.35 55 1213 3.5

WG492088PBW 02/26/20PBW 1.2 61.1 3

L57321-02DUP2 02/27/20 0.84DUP-RER -2.5 22.1 1.271.6 6.44.6

L57286-01DUP1 RG02/27/20 0DUP-RPD -1.1 201.41.2 3.93.4 200

L57321-02DUP2 RG02/27/20 0.84DUP-RPD -2.5 202.11.6 6.44.6 402

L57286-01DUP1 02/27/20 0DUP-RER -1.1 21.4 0.61.2 3.93.4

L57321-01MS 02/27/20 1.3 100MS PCN59631 10098.34 55 1213.41.2 3.53.4

Radium 226, dissolved M903.1

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491969

WG491969PBW 02/25/20PBW .19 0.380.12 0.19

WG491969LCSW 02/25/20 85LCSW PCN57864 1720 43 1480.71 0.2

L57324-01DUP1 RG02/25/20 0.16DUP-RPD .25 200.110.08 0.170.1 44

L57324-01DUP1 02/25/20 0.16DUP-RER .25 20.11 0.660.08 0.170.1

L57326-01DUP2 02/25/20 0.24DUP-RPD .27 200.080.09 0.250.03 12

L57325-01MS 02/25/20 0.35 78MS PCN57864 1620 43 1480.490.11 0.180.13

Page 43 of 50L57461-2003041359

Page 120: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L57461Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Radium 228, dissolved M9320

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG492113

WG492113PBW 02/25/20PBW -.2 0.90.41 0.45

L57326-01DUP 02/25/20 0.4DUP-RER .18 20.74 0.220.64 21.7

WG492113LCSW 02/25/20 112LCSW PCN58076 9.88.73 47 1231.2 0.82

L57326-01DUP RG02/25/20 0.4DUP-RPD .18 200.740.64 21.7 76

L57461-01MS 02/25/20 2.7 107MS PCN58076 128.73 47 1231.20.87 1.91.9

L57458-02DUP 02/25/20 1.7DUP-RER 1.2 20.89 0.410.83 2.22.1

L57458-02DUP RG02/25/20 1.7DUP-RPD 1.2 200.890.83 2.22.1 34

WG492481

WG492481LCSW 02/28/20 104LCSW PCN58076 9.18.72 47 1231.1 2.1

WG492481PBW 02/28/20PBW .69 40.83 2

L57490-01DUP 02/28/20 0.02DUP-RER 1.3 20.8 1.140.79 22

L57490-01DUP RG02/28/20 0.02DUP-RPD 1.3 200.80.79 22 194

L57556-01DUP 02/28/20 1DUP-RER 1.5 20.8 0.440.81 2.11.9

L57569-01MS 02/28/20 1.4 110MS PCN58076 118.72 47 1231.20.79 22

L57556-01DUP RG02/28/20 1DUP-RPD 1.5 200.80.81 2.11.9 40

Thorium 230, dissolved ESM 4506

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG491970

WG491970LCSW 02/20/20 103LCSW PCN58726 206200 91 12627 0.32

L57321-03DUP 02/21/20 0.125DUP-RER .416 20.37 0.690.2 0.530.34

L57321-03DUP RG02/21/20 0.125DUP-RPD .416 200.370.2 0.530.34 108

L57461-14DUP 02/21/20 0.296DUP-RER .24 20.22 0.150.31 0.330.5

L57461-14DUP RG02/21/20 0.296DUP-RPD .24 200.220.31 0.330.5 21

L57460-01MS 02/21/20 0.125 108MS PCN58726 216200 91 126300.21 0.430.36

WG491970PBW 02/21/20PBW .408 0.880.3 0.44

Page 44 of 50L57461-2003041359

Page 121: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

RadChem Extended

Qualifier Report

ACZ Project ID: L57461Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG4921131L57461-01

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG4921132L57461-02

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG4921133L57461-03

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG4921134L57461-04

DD Sample required dilution due to matrix color or odor.EICHROM, OTW01Lead 210, dissolvedWG49208812L57461-12

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01

DF Sample required dilution due to high sediment.M903.1Radium 226, dissolvedWG491969

DF Sample required dilution due to high sediment.M9320Radium 228, dissolvedWG492113

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320

D1 Sample required dilution due to matrix.ESM 4506Thorium 230, dissolvedWG491970

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506

QB Method-specified preservation criteria cannot be met due to sample matrix.

M9310Gross Alpha, dissolvedWG49208113L57461-13

DD Sample required dilution due to matrix color or odor.EICHROM, OTW01Lead 210, dissolvedWG492088

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

EICHROM, OTW01

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01

DF Sample required dilution due to high sediment.M903.1Radium 226, dissolvedWG491969

DD Sample required dilution due to matrix color or odor.M9320Radium 228, dissolvedWG492481

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320

D1 Sample required dilution due to matrix.ESM 4506Thorium 230, dissolvedWG491970

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506

D1 Sample required dilution due to matrix.EICHROM, OTW01Lead 210, dissolvedWG49208814L57461-14

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

EICHROM, OTW01

DJ Sample dilution required due to insufficient sample.M903.1Radium 226, dissolvedWG491969

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG492481

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

ESM 4506Thorium 230, dissolvedWG491970

REPAD.15.06.05.01

Page 45 of 50L57461-2003041359

Page 122: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L57461Rio Algom Mining Company

Radiochemistry

The following parameters are not offered for certification or are not covered by NELAC certificate #ACZ.

Lead 210, dissolved EICHROM, OTW01

Thorium 230, dissolved ESM 4506

REPAD.05.06.05.01

Page 46 of 50L57461-2003041359

Page 123: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/15/2020 10:04

L57461

Date Printed: 2/18/2020

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received

L57461-13 Container B2241073 (GREEN CUBE): Added 8 mls nitric

acid to the sub-sample. The pH is 5.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

5051 10.5 NA 15 Yes

6145 3.1 <=6.0 14 Yes

4814 2.2 <=6.0 13 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 47 of 50L57461-2003041359

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/15/2020 10:04

L57461

Date Printed: 2/18/2020

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 48 of 50L57461-2003041359

Page 125: ACZ Laboratories, Inc.

Page 49 of 50L57461-2003041359

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Page 50 of 50L57461-2003041359

Page 127: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L57681

Kent Applegate

March 11, 2020

Project ID: 4508122295

Report to:

cc: Clark Short, Angela Persico, Michaella Gorospe, jcarroll

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on February 29, 2020. This project has been assigned to ACZ's project number, L57681. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L57681. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute.

Except as noted, the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ) meet all requirements of NELAC.

This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report.

All samples and sub-samples associated with this project will be disposed of after April 10, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ's stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 11L57681-2003111430

Page 128: ACZ Laboratories, Inc.

ACZ Sample ID: L57681-01

Sample ID: 31-05 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/27/20 15:30

Date Received: 02/29/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 566 mg/L 3 jlw0.5 03/09/20 11:245

Magnesium, dissolved M200.7 ICP 617 mg/L 5 jlw1 03/09/20 11:245

Potassium, dissolved M200.7 ICP 20 mg/L 5 jlw1 03/09/20 11:245

Sodium, dissolved M200.7 ICP 467 mg/L 5 jlw1 03/09/20 11:245

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 576 mg/L 20 mss25 03/06/20 11:2510

Conductivity @25C SM2510B 7210 umhos/cm 10 nmc1 03/04/20 7:461

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 9.6 mg/L 0.5 pjb0.1* 03/11/20 1:525

Residue, Filterable (TDS) @180C

SM2540C 6400 mg/L 80 jck40 03/03/20 18:122

Sulfate D516-02/-07/-11 - Turbidimetric 3280 mg/L 500 mss2100* 03/10/20 10:14100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 11L57681-2003111430

Page 129: ACZ Laboratories, Inc.

ACZ Sample ID: L57681-02

Sample ID: 31-70 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/27/20 15:30

Date Received: 02/29/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 675 mg/L 3 jlw0.5 03/09/20 11:275

Magnesium, dissolved M200.7 ICP 381 mg/L 5 jlw1 03/09/20 11:275

Potassium, dissolved M200.7 ICP 13 mg/L 5 jlw1 03/09/20 11:275

Sodium, dissolved M200.7 ICP 650 mg/L 5 jlw1 03/09/20 11:275

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 847 mg/L 20 mss25 03/06/20 11:2510

Conductivity @25C SM2510B 7010 umhos/cm 10 nmc1 03/04/20 7:481

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 51.2 mg/L 3 pjb0.5* 03/11/20 1:5425

Residue, Filterable (TDS) @180C

SM2540C 5840 mg/L 80 jck40 03/03/20 18:142

Sulfate D516-02/-07/-11 - Turbidimetric 2540 mg/L 500 mss2100* 03/10/20 10:14100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 11L57681-2003111430

Page 130: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U The material was analyzed for, but was not detected above the level of the associated value.

The associated value is either the sample quantitation limit or the sample detection limit.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP001.03.15.02

Inorganic

Reference

Page 4 of 11L57681-2003111430

Page 131: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57681Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG493187

WG493187ICV 03/09/20 10:23 98ICV II200228-2 98.34 95 105mg/L100

WG493187ICB 03/09/20 10:29ICB U -0.3 0.3mg/L

WG493187LFB 03/09/20 10:42 102LFB II200302-4 69.39 85 115mg/L68.00334

L57667-04AS 03/09/20 10:55 201 94AS II200302-4 264.9 85 115mg/L68.00334

L57667-04ASD 03/09/20 10:58 201 92ASD II200302-4 263.7 085 115mg/L 2068.00334

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG493123

WG493123ICB 03/06/20 9:42ICB U -1.5 1.5mg/L

WG493123ICV 03/06/20 9:42 103ICV WI190501-1 56.69 90 110mg/L54.835

WG493123LFB1 03/06/20 11:09 108LFB WI190812-3 32.52 90 110mg/L30

L57667-04DUP 03/06/20 11:09 7.7DUP 7.58 2mg/L 20

L57685-01DUP 03/06/20 11:11 30.4DUP 30.45 0mg/L 20

L57685-03AS 03/06/20 11:11 19.2 103AS WI190812-3 50.06 90 110mg/L30

WG493123LFB2 03/06/20 11:13 107LFB WI190812-3 32 90 110mg/L30

L57667-05AS 03/06/20 11:20 218 100AS 10XCL 248 90 110mg/L30

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492912

WG492912LCSW2 03/03/20 17:51 101LCSW PCN60029 1430 90 110umhos/cm1410

WG492912LCSW5 03/03/20 21:16 101LCSW PCN60029 1420 90 110umhos/cm1410

WG492912LCSW8 03/04/20 1:51 101LCSW PCN60029 1420 90 110umhos/cm1410

WG492912LCSW11 03/04/20 6:26 101LCSW PCN60029 1420 90 110umhos/cm1410

L57691-02DUP 03/04/20 8:39 8770DUP 8770 0umhos/cm 20

WG492912LCSW14 03/04/20 10:16 101LCSW PCN60029 1420 90 110umhos/cm1410

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG493187

WG493187ICV 03/09/20 10:23 98ICV II200228-2 97.8 95 105mg/L100

WG493187ICB 03/09/20 10:29ICB U -0.6 0.6mg/L

WG493187LFB 03/09/20 10:42 99LFB II200302-4 49.62 85 115mg/L49.99771

L57667-04AS 03/09/20 10:55 117 91AS II200302-4 162.5 85 115mg/L49.99771

L57667-04ASD 03/09/20 10:58 117 91ASD II200302-4 162.5 085 115mg/L 2049.99771

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG493316

WG493316ICV 03/10/20 23:57 103ICV WI200213-7 2.48 90 110mg/L2.416

WG493316ICB 03/10/20 23:58ICB U -0.02 0.02mg/L

WG493319

WG493319LFB1 03/11/20 0:57 104LFB WI191004-3 2.073 90 110mg/L2

L57562-01AS 03/11/20 0:59 U 105AS WI191004-3 2.106 90 110mg/L2

L57562-02DUP RA03/11/20 1:02 UDUP U 0mg/L 20

WG493319LFB2 03/11/20 1:37 103LFB WI191004-3 2.065 90 110mg/L2

Page 5 of 11L57681-2003111430

Page 132: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L57681Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG493187

WG493187ICV 03/09/20 10:23 99ICV II200228-2 19.79 95 105mg/L20

WG493187ICB 03/09/20 10:29ICB U -0.6 0.6mg/L

WG493187LFB 03/09/20 10:42 101LFB II200302-4 101 85 115mg/L99.95798

L57667-04AS 03/09/20 10:55 10.6 104AS II200302-4 115 85 115mg/L99.95798

L57667-04ASD 03/09/20 10:58 10.6 104ASD II200302-4 114.7 085 115mg/L 2099.95798

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG492914

WG492914PBW 03/03/20 17:25PBW U -20 20mg/L

WG492914LCSW 03/03/20 17:27 100LCSW PCN60398 996 80 120mg/L1000

L57691-07DUP 03/03/20 18:22 4320DUP 4310 0mg/L 10

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG493187

WG493187ICV 03/09/20 10:23 99ICV II200228-2 99.18 95 105mg/L100

WG493187ICB 03/09/20 10:29ICB U -0.6 0.6mg/L

WG493187LFB 03/09/20 10:42 101LFB II200302-4 101.1 85 115mg/L100.0046

L57667-04AS 03/09/20 10:55 37 104AS II200302-4 141.2 85 115mg/L100.0046

L57667-04ASD 03/09/20 10:58 37 103ASD II200302-4 140.5 085 115mg/L 20100.0046

Sulfate D516-02/-07/-11 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG493266

WG493266ICB 03/10/20 9:35ICB U -3 3mg/L

WG493266ICV 03/10/20 9:35 99ICV WI200305-2 19.7 90 110mg/L20

WG493266LFB 03/10/20 10:02 98LFB WI190801-3 9.8 90 110mg/L10.01

L52843-36DUP 03/10/20 10:23 134DUP 135 1mg/L 20

L57634-01AS M303/10/20 10:23 2300 -2500AS SO4TURB 2050 90 110mg/L10

Page 6 of 11L57681-2003111430

Page 133: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L57681Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG4933191L57681-01

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG493266

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG4933192L57681-02

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07/-11 - TurbidimetricSulfateWG493266

REPAD.15.06.05.01

Page 7 of 11L57681-2003111430

Page 134: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L57681Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 8 of 11L57681-2003111430

Page 135: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/29/2020 11:48

L57681

Date Printed: 3/3/2020

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

6324 5 <=6.0 15 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 9 of 11L57681-2003111430

Page 136: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

02/29/2020 11:48

L57681

Date Printed: 3/3/2020

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 10 of 11L57681-2003111430

Page 137: ACZ Laboratories, Inc.

Page 11 of 11L57681-2003111430

Page 138: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L59258

Kent Applegate

June 12, 2020

Project ID: 4508122295

Report to:

cc: Clark Short, Angela Persico, Michaella Gorospe, jcarroll

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on May 27, 2020. This project has been assigned to ACZ's project number, L59258. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L59258. Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor, or a qualified substitute.

Except as noted, the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ) meet all requirements of NELAC.

This report shall be used or copied only in its entirety. ACZ is not responsible for the consequences arising from the use of a partial report.

All samples and sub-samples associated with this project will be disposed of after July 12, 2020. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/sample). If you would like the samples to be held longer than ACZ's stated policy or to be returned, please contact your Project Manager or Customer Service Representative for further details and associated costs. ACZ retains analytical raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 26L59258-2006121131

Page 139: ACZ Laboratories, Inc.

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Case

Narrative

Rio Algom Mining Company

ACZ Project ID: L59258

June 12, 2020

Sample Receipt

Sample Analysis

Holding Times

Text10:ACZ Laboratories, Inc. (ACZ) received 10 groundwater samples from Rio Algom Mining Company on May 27, 2020. The samples were received in good condition. Upon receipt, the sample custodian removed the samples from the cooler, inspected the contents, and logged the samples into ACZ's computerized Laboratory Information Management System (LIMS). The samples were assigned ACZ LIMS project number L59258. The custodian verified the sample information entered into the computer against the chain of custody (COC) forms and sample bottle labels.

Text10:These samples were analyzed for inorganic, radiochemistry parameters. The individual methods are referenced on both, the ACZ invoice and the analytical reports. The extended qualifier reports may contain footnotes qualifying specific elements due to QC failures. In addition the following has been noted with this specific project:

1. This project is a client requested re-analysis of several previously reported samples.

Text10:Any analyses not performed within EPA recommended holding times have been qualified with an "H" flag.

Project ID: 4508122295

REPAD.03.06.05.01 Page 2 of 26L59258-2006121131

Page 140: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-02

Sample ID: 35-03

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/04/20 15:33

Date Received: 05/27/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Potassium, dissolved M200.7 ICP 17.4 mg/L 1 kja0.2 06/04/20 21:451

REPIN.02.06.05.01

Page 3 of 26L59258-2006121131

Page 141: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-04

Sample ID: 19-77 TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 13:24

Date Received: 05/27/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Nickel, dissolved M200.8 ICP-MS 0.0021 mg/L 0.001 enb0.0004 06/03/20 11:021

REPIN.02.06.05.01

Page 4 of 26L59258-2006121131

Page 142: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-05

Sample ID: 33-01 TRA

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 09:41

Date Received: 05/27/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Molybdenum, dissolved M200.8 ICP-MS 0.0023 mg/L 0.0005 enb0.0002 06/03/20 11:051

REPIN.02.06.05.01

Page 5 of 26L59258-2006121131

Page 143: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-06

Sample ID: 17-VH-9

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/10/20 12:55

Date Received: 05/27/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Cobalt, dissolved M200.8 ICP-MS 0.00271 mg/L 0.0003 enb0.00005 06/03/20 11:081

REPIN.02.06.05.01

Page 6 of 26L59258-2006121131

Page 144: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-07

Sample ID: 30W-VH-2

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 14:50

Date Received: 05/27/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Cobalt, dissolved M200.8 ICP-MS 0.00406 mg/L 0.0003 enb0.00005 06/03/20 11:111

REPIN.02.06.05.01

Page 7 of 26L59258-2006121131

Page 145: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-08

Sample ID: 30W-VH-6

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/13/20 16:08

Date Received: 05/27/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Cobalt, dissolved M200.8 ICP-MS 0.00836 mg/L 0.0003 enb0.00005 06/03/20 11:141

REPIN.02.06.05.01

Page 8 of 26L59258-2006121131

Page 146: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-10

Sample ID: 36-06 KD

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID:

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 02/25/20 14:07

Date Received: 05/27/20

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Lead, dissolved M200.8 ICP-MS 0.0128 mg/L 0.003 bsu0.0005 06/08/20 17:505

REPIN.02.06.05.01

Page 9 of 26L59258-2006121131

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U The material was analyzed for, but was not detected above the level of the associated value.

The associated value is either the sample quantitation limit or the sample detection limit.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP001.03.15.02

Inorganic

Reference

Page 10 of 26L59258-2006121131

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L59258Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

No extended qualifiers associated with this analysis

REPAD.15.06.05.01

Page 11 of 26L59258-2006121131

Page 149: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-01

Sample ID: 35-09

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/04/20 11:50

Date Received: 05/27/20

Locator:

RadioChemistry

Analytical Results

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.63 0.11 0.1 pCi/L * jlg06/09/20 0:23

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

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Page 150: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-03

Sample ID: 5-04 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/05/20 15:13

Date Received: 05/27/20

Locator:

RadioChemistry

Analytical Results

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 0.06 0.87 2.1 pCi/L * isn06/02/20 13:20

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

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ACZ Sample ID: L59258-04

Sample ID: 19-77 TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/10/20 13:24

Date Received: 05/27/20

Locator:

RadioChemistry

Analytical Results

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.58 0.22 0.29 pCi/L * jlg06/09/20 0:24

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 14 of 26L59258-2006121131

Page 152: ACZ Laboratories, Inc.

ACZ Sample ID: L59258-09

Sample ID: 5-73 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4508122295

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 02/13/20 12:46

Date Received: 05/27/20

Locator:

RadioChemistry

Analytical Results

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.48 0.17 0.23 pCi/L * jlg06/09/20 0:25

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Error(+/-) Calculated sample specific uncertainty

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

LCL Lower Control Limit, in % (except for LCSS, mg/Kg)

LLD Calculated sample specific Lower Limit of Detection

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit

QC True Value of the Control Sample or the amount added to the Spike

Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg)

RER Relative Error Ratio, calculation used for Dup. QC taking into account the error factor.

RPD Relative Percent Difference, calculation used for Duplicate QC Types

UCL Upper Control Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

DUP Sample Duplicate MS/MSD Matrix Spike/Matrix Spike Duplicate

LCSS Laboratory Control Sample - Soil PBS Prep Blank - Soil

LCSW Laboratory Control Sample - Water PBW Prep Blank - Water

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Matrix Spikes Determines sample matrix interferences, if any.

ACZ Qualifiers (Qual)

H Analysis exceeded method hold time.

Method Prefix Reference

M EPA methodology, including those under SDWA, CWA, and RCRA

SM Standard Methods for the Examination of Water and Wastewater.

D ASTM

RP DOE

ESM DOE/ESM

Comments

(1) Solid matrices are reported on a dry weight basis.

(2) Preparation method: "Method" indicates preparation defined in analytical method.

(3) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification

qualifier associated with the result.

For a complete list of ACZ's Extended Qualifiers, please click:

https://acz.com/wp-content/uploads/2019/04/Ext-Qual-List.pdf

REP003.09.12.01

Radiochemistry

Reference

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

RadChem Extended

Qualifier Report

ACZ Project ID: L59258Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M903.1Radium 226, dissolvedWG4982001L59258-01

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M9320Radium 228, dissolvedWG4981393L59258-03

DJ Sample dilution required due to insufficient sample.M903.1Radium 226, dissolvedWG4982004L59258-04

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M903.1

DF Sample required dilution due to high sediment.M903.1Radium 226, dissolvedWG4982009L59258-09

RG Sample concentration is less than 5x LLD; RPD was not used for data validation. Replicate Error Ratio (RER) is less than 2. Precision judged to be in control.

M903.1

REPAD.15.06.05.01

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L59258Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

05/27/2020 16:01

L59258

Date Printed: 5/28/2020

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

UNKNOWN NA

X

Was ice present in the shipment container(s)?

No - Wet or gel ice was not present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4508122295

ACZ Project ID:

Date Received:

Received By:

05/27/2020 16:01

L59258

Date Printed: 5/28/2020

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

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