ECS Project No.08-219892.00 615 Bullmoose Ridge Road RE ... · 15 September 2015 ECS Project...

15 September 2015

ECS Project No.08-219892.00

SMS Site No. 2010-4125

Ryan Herrington

615 Bullmoose Ridge Road

Stowe, VT 05672

RE: Summary Report – July 2015 Soil Vapor Sampling

Dear Mr. Herrington,

Environmental Compliance Services, Inc. (ECS) is pleased to submit the following summary report for

sub-slab soil vapor sampling and ambient air sampling conducted at your residence (Figure 1). This work

was performed in accordance with the ECS work plan dated 19 May 2015, which was approved by Mr.

Gerold Noyes of the Vermont Department of Environmental Conservation (VT DEC) in a 4 June 2015

e-mail.

INITIAL SITE INVESTIGATION AND SOIL VAPOR SAMPLING

ECS performed an initial site investigation (ISI) on 25 June 2014 in order to define groundwater and soil

contamination related to leaking piping associated with a 500-gallon heating oil underground storage tank

(UST). Elevated soil headspace photoionization (PID) readings (up to 342.7 parts per million (ppm)) were

recorded in close proximity to the former UST area at a depth of eight feet below ground surface (bgs). The

full extent of heating oil contamination was not determined due to its close proximity to the house and it is

possible that heating oil may have migrated beneath the house foundation.

On 16 October 2014, Mr. Ashely Desmond of the VT DEC requested that two sub-slab soil vapor samples

be collected for laboratory analysis using the minimally-invasive Vapor Pin™ soil gas sampling technology.

The VT DEC’s approach was to assess sub-slab vapor first, then decide if soil and groundwater sampling

would be necessary beneath the house.

On 27 January 2015, ECS personnel installed one temporary sub-slab soil Vapor Pin (VP) in the furnace

room, approximately 6 feet from the western wall (VP-1). This point is also approximately 8 feet from the

former UST location. A second VP was installed in a room located south of the furnace room,

approximately 2 feet from the western wall (VP-2). Both VPs were sampled for quantitative laboratory

analysis according to US EPA Method TO-15 short list of petroleum-related compounds. Toluene was

detected in both VP-1 and VP-2 at concentrations of 6.10 and 61.33 micrograms per cubic meter (µg/m3),

respectively, both of which are below Vapor Intrusion Screening Values (VISVs) for Target Indoor Air and

Shallow Soil Gas. Benzene was detected in VP-2 at a concentration of 1.88 µg/m3, which exceeds Target

Indoor Air (1.18 µg/m3). All other compounds were below reporting limits (BRL). ECS personnel removed

the Vapor Pins™ and filled the hole with concrete after sampling was completed.

Project No.: 08-219892.00 Date:15 September 2015

Client Name: Ryan Herrington Page: 2

VAPOR INTRUSION EVALUATION

On 27 July 2015, ECS performed a follow-up vapor intrusion evaluation. The evaluation included

inspecting the basement, evaluating potential leaky areas, re-installing soil gas points VP-1 and VP-2

(Figure 2) to evaluate relative air movement and sub-slab vapor quality, and sampling indoor and outdoor

ambient air quality. The basement contained a concrete floor with an office room, laundry room, and

furnace room. The furnace room contained two 275-gallon heating oil above ground storage tanks

(ASTs) for on premise heating. Basement chemicals observed consisted of cement grout, joint

compound, wood hardener, laundry detergent, and cans of latex paint. A Site Plan depicting VP locations

is included as Attachment A.

DIFFERENTIAL PRESSURE TESTING

Differential pressures were recorded using a micro-manometer to evaluate relative air movement from

sub slab to basement, sub-slab to outdoor, sub-slab to first floor, basement to outdoor, basement to first

floor, and first floor to outdoor. The micro-manometer was connected to each environment with

polyethylene tubing. Negligible (0.001+/-) to no difference in pressure (0.00) was observed between the

sub-slab and basement air.

FIELD SCREENING AND LEAK TESTING OF VAPOR POINTS

To confirm that the VPs were secured properly, each point was purged and screened for the presence of

volatile organic compounds (VOCs) using a PID. ECS used a “water dam” test to ensure ambient air was

not diluting the soil vapors being drawn into the VPs. The “water dam” test used a PVC cylinder filled

with water to make sure the silicon seal on the VPs were air tight. Both VPs held water for 5 minutes,

indicating the seals were air tight. Results indicate that PID readings were 0.0 ppm in the basement.

SUB-SLAB, INDOOR AIR, AND OUTDOOR AIR SAMPLING & ANALYSIS

Sub-slab soil gas samples were collected for petroleum VOC analysis by US EPA Method TO-15

utilizing half hour flow controllers in a decontaminated, 6-liter, Silonite-coated Summa Canister.

Canister location, starting time, starting vacuum, and ambient temperature at the sampling location were

noted. Upon retrieval of the canister, ending time, ending vacuum, and ambient temperature at the

sampling location was noted. This information is included on the chain of custody attached to the

laboratory report in Attachment B. Concurrent with sub-slab sampling described above; indoor and

outdoor ambient air was also collected for laboratory analysis. The indoor ambient air sample was

located east of VP-1, outside the furnace room. The outdoor ambient air sample was located east of both

VPs on an outdoor deck. These samples were collected in Summa canisters specifically prepared by

Spectrum Analytical for low level VOC analysis via US EPA Method TO-15 utilizing 24-hour flow

controllers.

Air sampling results are summarized in Table 1. Soil gas samples were compared to the VISVs for

Shallow Soil Gas. Indoor and outdoor samples air samples were compared to VISVs for Target Indoor

Air in accordance with the VT DEC’s Investigation and Remediation of Contaminated Properties

Procedure (IROCP), effective April 2012.

Naphthalene was detected in VP-1 and VP-2 at concentrations of 4.89 and 11.94 micrograms per cubic

meter (µg/m3), respectively, both of which are above VISVs for Shallow Soil Gas. Naphthalene is a

VOC that is found in heating oil and is used in carbamate insecticides, resins, as a moth repellent, and in

Project No.: 08-219892.00 Date:15 September 2015

Client Name: Ryan Herrington Page: 3

miscellaneous organic chemicals. Toluene was detected in VP-1 at a concentration of 13.55 µg/m3,

which does not exceed the VISVs for Shallow Soil Gas (300,000 µg/m3). Toluene is a VOC that is found

in heating oil and is also used as a solvent in paints, coatings, synthetic fragrances, adhesives, inks, and

cleaning agents. 1,2,4-Trimethylbenzene (TMB) was detected in VP-1 and VP-2 at concentrations of

8.46 and 11.80 µg/m3, respectively, there is no VISV for Shallow Soil Gas for this compound.

1,2,4-TMB is a VOC that is found in heating oil and occurs naturally in coal tar and petroleum and is

commonly used as a gasoline additive and is also used as a sterilizing agent and in the manufacture of

dyes, perfumes, and resins. All other compounds in VP-1 and VP-2 were below reporting limits.

Several VOCs were detected in the indoor and outdoor air samples, which is not uncommon during vapor

intrusion evaluations due to low reporting limits and ubiquitous background sources in the environment.

Carbon tetrachloride was detected in both the indoor and outdoor air samples at concentrations of 1.01

and 2.79 µg/m3, respectively, both of which are above VISVs for Target Indoor Air (0.41 µg/m3).

Carbon tetrachloride is not petroleum-related and was historically used as a dry cleaning solvent, a

refrigerant, and in fire extinguishers. Methylene chloride was detected in the outdoor sample at a

concentration of 2.24 µg/m3, which exceeds the VISVs for Target Indoor Air (2.1 µg/m3). Methylene

chloride, also known as dichloromethane, is not petroleum-related and is used in various industrial

processes such as paint stripping, metal cleaning, degreasing, and adhesive manufacturing and use.

Tetrachloroethene was detected in the indoor air sample at a concentration of 1.63 µg/m3, which exceeds

the VISVs for Target Indoor Air (0.57 µg/m3). Tetrachloroethene, also known as perchloroethene (PCE),

is widely used in dry cleaning and is present in consumer products such as paint strippers and stain

removers. Chloroform was detected in the indoor sample at a concentration of 0.58 µg/m3, which

exceeds the VISVs for Target Indoor Air (0.38 µg/m3). Chloroform is used as an extraction solvent for

oils, rubber, and waxes, and as a cleaning agent. Trichloroethene (TCE) was detected in the indoor air

sample at a concentration of 0.54 µg/m3, which exceeds Target Indoor Air (0.5 µg/m3). TCE is used as a

paint stripper, adhesive solvent, as an ingredient in paints and varnishes, and in the manufacture of other

chemicals. TCE is also a breakdown product of PCE.

CONCLUSIONS AND RECOMMENDATIONS

Because there was little to no pressure differentials observed on the day of testing between the

various environments (ie., sub slab to basement, sub-slab to outdoor, sub-slab to first floor, basement

to outdoor, basement to first floor, and first floor to outdoor), it is difficult to draw conclusions with

respect to various vapor intrusion pathways that may exist. Furthermore, atmospheric parameters

(barometric pressure, solar heating, etc.) and building condition (insulation, heating, cooling processes,

etc.) can cause fluctuations in air movement from the various environments, resulting in dynamic

conditions over the course of a day (diurnal flux), seasons, and the year. Please keep this in mind

when you review the data provided in this report.

Several VOCs were detected in the indoor and outdoor air samples, which is not uncommon in vapor

intrusion evaluations. The detection of several non petroleum related VOCs (e.g., PCE, TCE, Freon 12,

Carbon Tetrachloride, etc) in the basement indoor air sample is likely from an interior background source

due to the presence of household items located in the basement.

Benzene which can be a constituent of heating oil was not detected above reporting limits in VP-1, VP-2, or

outdoor air sample; however, benzene was detected in the indoor air sample, but not above VISVs for target

Indoor Air. This may indicate that the source of benzene is from an interior background source due to the

presence of household items. Please note that the detection limits for benzene in VP-1 and VP-2 were

elevated so a conclusive determination for a subslab vapor intrusion pathway of benzene can’t be

determined at this time.

Project No.: 08-219892.00 Date:15 September 2015Client Name: Ryan Herrington Page: 4

Naphthalene which is a common constituent of heating oil was detected in VP-1 and VP-2 above VISVs forShallow Soil Gas, but was not detected above reporting limits in the indoor and outdoor ambient airsamples. The absence of naphthalene in the ambient air samples indicates that sub surface Naphthalene soilgas vapors are present, but are likely not entering the ambient airspace of the basement at the time of testing.However, this can’t be concluded with certainty as reporting limits of the indoor/outdoor air samples wereelevated above target indoor air VISV.

Toluene is a common constituent of heating oil and was detected in VP-1, but not above VISVs for TargetIndoor Air. Toluene was also detected in the indoor ambient air sample, which may indicate a potentialsubslab vapor intrusion pathway at the time of testing.

1,2,4-TMB is a common constituent of heating oil and was detected in VP-1 and VP-2. 1,2,4-TMB wasalso detected in the indoor ambient air sample, which may indicate a potential subslab vapor intrusionpathway at the time of testing. There are no VISVs for 1,2,4-TMB.

1,3, 5-TMB which is a common constituents of heating oil was not detected above reporting limits in VP-1,VP-2, or outdoor air sample; however, it was detected in the indoor air sample. This may indicate that thesource of 1,3,5-TMB is from an interior background source due to the presence of household items. Pleasenote that the detection limits for 1,3,5- TMB in VP-1 and VP-2 were elevated; and therefore, a conclusivedetermination for a subslab vapor intrusion pathway of 1,3,5-TMB can’t be determined at this time. Thereare no VISVs for 1,3,5-TMB.

Based on these results, there is some evidence of potential vapor intrusion. However, based on elevatedreporting limits in some cases and insignificant relative air movement (pressure differentials) at the time oftesting, strong conclusions can’t be made at this time. ECS recommends performing another round of vaporintrusion testing in December/January, which typically represents “worse case” conditions. It may beprudent to install and operate a small scale soil vapor extraction (SVE) system to recover residualcontaminant mass and mitigate potential vapor intrusion.

We appreciate the opportunity to provide our services. Feel free to call one of the undersigned should youhave any questions.

Sincerely,

ENVIRONMENTAL COMPLIANCE SERVICES, INC.

Joseph J. Hayes, C.P.G., P.G.Branch Manager

Attachments:Site PlanTable 1. July 2015 Vapor Analytical ResultsLaboratory Analytical Report

cc: Gerold Noyes, VT DEC

VISV - Target

Indoor Air

(µg/m3) Outdoor Indoor

Shallow Soil

Gas µg/m3

VP-1 VP-2

Sample Date 07/28/15 07/28/15 Sample Date 07/27/15 07/27/15

Tetrachloroethene 0.57 BRL<2.74 1.63 5.7 NA NA

Methylene chloride 2.1 2.24 0.83 21 NA NA

Dichlorodifluoromethane (Freon12) 200 4.40 16.66 2000 NA NA

Acetone 315 28.28 55.13E 3150 NA NA

Benzene 1.18 BRL<1.29 0.93 1180 BRL<2.71 BRL<6.38

n-Butylbenzene -- BRL<2.22 0.77 -- BRL<4.67 BRL<10.98

Ethanol -- 25.83 373.33E -- NA NA

Ethyl acetate -- 15.28 5.33 -- NA NA

Ethylbenzene 100 BRL<1.75 1.00 100000 BRL<3.69 BRL<8.67

Hexane 7000 63.11 6.06 70000 NA NA

n-Heptane -- BRL<0.83 3.93 -- NA NA

Carbon tetrachloride 0.41 2.79 1.01 4.1 NA NA

Chloroform 0.38 BRL<1.97 0.58 3.8 NA NA

Cyclohexane 82 BRL<1.39 4.65 820 NA NA

Isopropyl alcohol -- 7.68 6.90 -- NA NA

2-Butanone (MEK) 5,000 5.07 5.66 50000 NA NA

2-Hexanone (MBK) -- 2.15 0.53 -- NA NA

4-Ethyltoluene -- BRL<1.99 0.74 -- NA NA

4-Isopropyltoluene -- BRL<2.17 3.00 -- BRL<4.56 BRL<10.73

4-Methyl-2-pentanone (MIBK) -- BRL<1.66 2.13 -- NA NA

Naphthalene 0.3 BRL<5.29 BRL<2.62 3 4.89 11.94

m,p-Xylene 2.98 3.99 BRL<7.37 BRL<17.34

o-Xylene BRL<1.75 1.39 BRL<3.69 BRL<8.67

Styrene 100 BRL<1.72 4.68 1000 NA NA

Tetrahydrofuran -- 1.43 0.80 -- NA NA

Toluene 300 2.89 4.89 300000 13.55 BRL<7.53

Trichloroethene 0.5 BRL<2.17 0.54 5 NA NA

Trichlorofluoromethane (Freon 11) 562 2.95 7.42 5620 NA NA

1,1,2-Trichlorotrifluoroethane (Freon 113) 30000 BRL<3.10 0.77 300000 NA NA

1,2,4-Trimethylbenzene -- BRL<1.99 3.44 -- 8.46 11.80

1,3,5-Trimethylbenzene -- BRL<1.99 1.18 -- BRL<4.18 BRL<9.83

Notes:

All samples analzyed by US EPA Method TO-15L with results provided in micrograms per cubic meter (µg/m3).

BRL - Below laboratory reporting limit

NA - Not analyzed

VISV - Vapor Intrusion Screening Values

E - This flag indicates the concentration for this analyte initially exceeded calibration range and was re-analyzed at a dilution of 20.

All indoor sample data reported from a dilution.

Analyte

100

Table 1.

July 2015 Vapor Analytical Results

Herrington Residence

100000

Vermont Vapor Intrusion Screening Values (VISV) are from the State of Vermont's April 2012 Investigation and Remediation of

Contaminanted Properties Procedure.

Stowe, Vermont

ECS, Inc.08-219892.00.ac.8/31/15

Revised Report

Environmental Compliance Services

1 Elm St. Suite 3

Waterbury, VT 05676

Attn: Katie Parrish

ü

SPECTRUM ANALYTICAL, INC.

Project:

Project #:

Report Date:

Re-Issued Report

Final Report

Laboratory Report

12-Aug-15 15:11

Herrington Residence - Stowe, VT

08-219892.00

Laboratory ID Client Sample ID Matrix Date Sampled Date ReceivedContainer

29-Jul-15 10:1528-Jul-15 15:00Indoor/Ambinet

Air

SC10561-01 OUTDOOR Summa canister 6 liter

29-Jul-15 10:1528-Jul-15 15:01Indoor/Ambinet

Air

SC10561-02 INDOOR Summa canister 6 liter

29-Jul-15 10:1527-Jul-15 15:15Soil GasSC10561-03 VP-2 Summa canister 6 liter

29-Jul-15 10:1527-Jul-15 16:07Soil GasSC10561-04 VP-1 Summa canister 6 liter

I attest that the information contained within the report has been reviewed for accuracy and checked against the quality control

requirements for each method. These results relate only to the sample(s) as received.

All applicable NELAC requirements have been met.

Massachusetts # M-MA138/MA1110

Connecticut # PH-0777

Florida # E87936

Maine # MA138

New Hampshire # 2538

New Jersey # MA011

New York # 11393

Pennsylvania # 68-04426/68-02924

Rhode Island # LAO00098

USDA # S-51435

Spectrum Analytical holds certification in the State of New York for the analytes as indicated with an X in the "Cert." column within this

report. Please note that the State of New York does not offer certification for all analytes. Please refer to our website for specific

certification holdings in each state.

Please note that this report contains 26 pages of analytical data plus Chain of Custody document(s). When the Laboratory Report is

indicated as revised, this report supersedes any previously dated reports for the laboratory ID(s) referenced above. Where this report

identifies subcontracted analyses, copies of the subcontractor's test report are available upon request. This report may not be

reproduced, except in full, without written approval from Spectrum Analytical, Inc.

Spectrum Analytical, Inc. is a NELAC accredited laboratory organization and meets NELAC testing standards. Use of the NELAC logo however does

not insure that Spectrum is currently accredited for the specific method or analyte indicated. Please refer to our "Quality" web page at

www.spectrum-analytical.com for a full listing of our current certifications and fields of accreditation. States in which Spectrum Analytical, Inc.

holds NELAC certification are New York, New Hampshire, New Jersey, Pennsylvania and Florida. All analytical work for Volatile Organic and Air

analysis are transferred to and conducted at our 830 Silver Street location (PA-68-04426).

Please contact the Laboratory or Technical Director at 800-789-9115 with any questions regarding the data contained in this laboratory report.

Authorized by:

Nicole Leja

Laboratory Director

Headquarters: 11 Almgren Drive & 830 Silver Street � Agawam, MA 01001 � 1-800-789-9115 � 413-789-9018 � Fax 413-789-4076

www.spectrum-analytical.comPage 1 of 26

CASE NARRATIVE:

Data has been reported to the RDL. This report excludes estimated concentrations detected below the RDL and above the MDL

(J-Flag).

All non-detects and all results below the reporting limit are reported as �<� (less than) the reporting limit in this report.

Samples are received and the pressure is recorded from the gauge on the canister. If a canister does not have a gauge, a vacuum gauge

is attached to the valve and pressure is recorded. If the canister is below -10 psig, the can must be pressurized to 0 psig. Tedlar bags

do not have the pressure recorded. The can pressure can be located within this report in the sample header information.

If a Duplicate (DUP) was not requested on the Chain of Custody, method criteria may have been fulfilled with a source sample not of

this Sample Delivery Group.

See below for any non-conformances and issues relating to quality control samples and/or sample analysis/matrix.

EPA TO-15

Calibration:

1508019

Analyte quantified by quadratic equation type calibration.

1,2,4-Trimethylbenzene

4-Isopropyltoluene

Naphthalene

n-Butylbenzene

This affected the following samples:

1515354-BLK1

1515354-BS1

S507443-ICV1

S507491-CCV1

VP-1

VP-2

Samples:

SC10561-03 VP-2

Elevated Reporting Limits due to the presence of high levels of non-target analytes; sample may not meet client requested

reporting limit for this reason.

SC10561-04 VP-1

Due to the low volume of sample collected it was necessary to pressurize the Summa can in laboratory prior to analysis which

results in elevated reporting limits.

EPA TO-15L

Calibration:

1507069

This laboratory report is not valid without an authorized signature on the cover page .

* Reportable Detection Limit Page 2 of 2612-Aug-15 15:11

EPA TO-15L

Calibration:

1507069

Analyte quantified by quadratic equation type calibration.

4-Methyl-2-pentanone (MIBK)

Acetone

Benzyl chloride

Bromomethane

Carbon disulfide

Carbon tetrachloride

Chloroethane

Chloromethane

Ethanol

Methyl tert-butyl ether

Methylene chloride

Propene


1514972-BLK1

1514972-BS1

1515121-BLK1

1515121-BS1

INDOOR

OUTDOOR

S507090-ICV1

S507280-CCV1

S507361-CCV1

Laboratory Control Samples:

1515121 BS

Ethanol percent recovery 137 (70-130) is outside individual acceptance criteria, but within overall method allowances. All

reported results of the following samples are considered to have a potentially high bias:

INDOOR

Hexane percent recovery 136 (70-130) is outside individual acceptance criteria, but within overall method allowances. All

reported results of the following samples are considered to have a potentially high bias:

INDOOR

1515121-BS1

analyte passed in CCV1

Ethanol

Hexane

Samples:

S507361-CCV1

Analyte percent drift is outside individual acceptance criteria (30), but within overall method allowances.

Carbon disulfide (31.5%)


1515121-BLK1

1515121-BS1

INDOOR

SC10561-01 OUTDOOR



EPA TO-15L

Samples:

SC10561-01 OUTDOOR

Due to the low volume of sample collected it was necessary to pressurize the Summa can in laboratory prior to analysis which

results in elevated reporting limits.

SC10561-02 INDOOR

This flag indicates the concentration for this analyte is an estimated value due to exceeding the calibration range or interferences

resulting in a biased final concentration.

Acetone

Ethanol

SC10561-02RE1 INDOOR

Data for this analyte may be biased high based on QC spike recoveries.

Ethanol

Sample dilution required for high concentration of target analytes to be within the instrument calibration range.



Sample Acceptance Check Form

Client:

Work Order:

Project:

Sample(s) received on:

Environmental Compliance Services - Waterbury, VT

Herrington Residence - Stowe, VT / 08-219892.00

SC10561

7/29/2015

Yes No N/A

Were samples received at a temperature of 6°C?

Were custody seals present?

Were custody seals intact?

ü

ü

ü

The following outlines the condition of samples for the attached Chain of Custody upon receipt.

Were samples cooled on ice upon transfer to laboratory representative? ü

Were samples refrigerated upon transfer to laboratory representative? ü

Were samples properly labeled (labels affixed to sample containers and include sample ID, site

location, and/or project number and the collection date)?

ü

Were sample containers received intact?

Were samples accompanied by a Chain of Custody document?

Did sample container labels agree with Chain of Custody document?

Were samples received within method-specific holding times?

ü

ü

ü

ü

Does Chain of Custody document include proper, full, and complete documentation, which shall

include sample ID, site location, and/or project number, date and time of collection, collector's name,

preservation type, sample matrix and any special remarks concerning the sample?

ü



Summary of Hits

Client ID: OUTDOORLab ID: SC10561-01

ResultParameter Units Analytical MethodReporting LimitFlag

2-Butanone (MEK) EPA TO-15L0.4041.72 ppbvD

2-Hexanone (MBK) EPA TO-15L0.4040.525 ppbvD

Acetone EPA TO-15L1.0111.9 ppbvD

Carbon tetrachloride EPA TO-15L0.4040.444 ppbvD

Dichlorodifluoromethane (Freon12) EPA TO-15L0.4040.889 ppbvD

Ethanol EPA TO-15L1.0113.7 ppbvD

Ethyl acetate EPA TO-15L0.4044.24 ppbvD

Hexane EPA TO-15L1.0117.9 ppbvD

Isopropyl alcohol EPA TO-15L1.013.13 ppbvD

m,p-Xylene EPA TO-15L0.4040.687 ppbvD

Methylene chloride EPA TO-15L0.4040.646 ppbvD

Tetrahydrofuran EPA TO-15L0.4040.485 ppbvD

Toluene EPA TO-15L0.4040.768 ppbvD

Trichlorofluoromethane (Freon 11) EPA TO-15L0.4040.525 ppbvD

Client ID: INDOORLab ID: SC10561-02


1,1,2-Trichlorotrifluoroethane (Freon

113)

EPA TO-15L0.1000.100 ppbv

1,2,4-Trimethylbenzene EPA TO-15L0.1000.700 ppbv

1,3,5-Trimethylbenzene EPA TO-15L0.1000.240 ppbv

2-Butanone (MEK) EPA TO-15L0.1001.92 ppbv

2-Hexanone (MBK) EPA TO-15L0.1000.130 ppbv

4-Ethyltoluene EPA TO-15L0.1000.150 ppbv

4-Isopropyltoluene EPA TO-15L0.1000.560 ppbv

4-Methyl-2-pentanone (MIBK) EPA TO-15L0.1000.520 ppbv

Acetone EPA TO-15L0.50032.6 ppbvE

Benzene EPA TO-15L0.1000.290 ppbv

Carbon tetrachloride EPA TO-15L0.1000.160 ppbv

Chloroform EPA TO-15L0.1000.120 ppbv

Cyclohexane EPA TO-15L0.1001.35 ppbv

Dichlorodifluoromethane (Freon12) EPA TO-15L0.1003.37 ppbv

Ethanol EPA TO-15L0.500195 ppbvE

Ethyl acetate EPA TO-15L0.1001.48 ppbv

Ethylbenzene EPA TO-15L0.1000.230 ppbv

Hexane EPA TO-15L0.5001.72 ppbv

Isopropyl alcohol EPA TO-15L0.5002.81 ppbv

m,p-Xylene EPA TO-15L0.2000.920 ppbv

Methylene chloride EPA TO-15L0.1000.240 ppbv

n-Butylbenzene EPA TO-15L0.1000.140 ppbv

n-Heptane EPA TO-15L0.1000.960 ppbv

o-Xylene EPA TO-15L0.1000.320 ppbv

Styrene EPA TO-15L0.1001.10 ppbv



Client ID: INDOORLab ID: SC10561-02


Tetrachloroethene EPA TO-15L0.1000.240 ppbv

Tetrahydrofuran EPA TO-15L0.1000.270 ppbv

Toluene EPA TO-15L0.1001.30 ppbv

Trichloroethene EPA TO-15L0.1000.100 ppbv

Trichlorofluoromethane (Freon 11) EPA TO-15L0.1001.32 ppbv

Client ID: INDOORLab ID: SC10561-02RE1


Acetone EPA TO-15L10.023.2 ppbvD

Dichlorodifluoromethane (Freon12) EPA TO-15L2.003.20 ppbvD

Ethanol EPA TO-15L10.0198 ppbvBsH, D

Client ID: VP-2Lab ID: SC10561-03


1,2,4-Trimethylbenzene EPA TO-152.002.40 ppbvD

Naphthalene EPA TO-152.002.28 ppbvD

Client ID: VP-1Lab ID: SC10561-04


1,2,4-Trimethylbenzene EPA TO-150.8501.72 ppbvD

Naphthalene EPA TO-150.8500.935 ppbvD

Toluene EPA TO-150.8503.60 ppbvD

Please note that because there are no reporting limits associated with hazardous waste characterizations or micro analyses , this

summary does not include hits from these analyses if included in this work order.



Sample IdentificationMatrix

28-Jul-15 15:00

Collection Date/Time Received

29-Jul-15

Client Project #

08-219892.00 Indoor/Ambinet AirOUTDOOR

SC10561-01

Analyte(s) Result/Units *RDL AnalyzedMethod Ref. Cert.Batch*RDLResult ug/m³CAS No. Flag Analyst

Air Quality Analyses

Volatile Organics in Air Low Level Prepared 03-Aug-15 AirP Can pressure: -16ppbv

Dilution: 2.02 Can ID: 0497

Propene EPA TO-15L 03-Aug-15 1514972< 0.35 0.35< 0.202 0.202 D115-07-1 BRF

Dichlorodifluoromethane (Freon12) " " "4.40 2.000.889 0.404 D X75-71-8 "

Chloromethane " " "< 0.42 0.42< 0.202 0.202 D X74-87-3 "

1,2-Dichlorotetrafluoroethane (Freon

114)

" " "< 1.41 1.41< 0.202 0.202 D X76-14-2 "

Vinyl chloride " " "< 0.52 0.52< 0.202 0.202 D X75-01-4 "

1,3-Butadiene " " "< 0.45 0.45< 0.202 0.202 D X106-99-0 "

Bromomethane " " "< 0.78 0.78< 0.202 0.202 D X74-83-9 "

Chloroethane " " "< 0.53 0.53< 0.202 0.202 D X75-00-3 "

Acetone " " "28.28 2.4011.9 1.01 D X67-64-1 "

Trichlorofluoromethane (Freon 11) " " "2.95 2.270.525 0.404 D X75-69-4 "

Ethanol " " "25.83 1.9013.7 1.01 D64-17-5 "

Acrylonitrile " " "< 0.44 0.44< 0.202 0.202 D X107-13-1 "

1,1-Dichloroethene " " "< 1.60 1.60< 0.404 0.404 D X75-35-4 "

Methylene chloride " " "2.24 1.400.646 0.404 D X75-09-2 "

1,1,2-Trichlorotrifluoroethane (Freon 113) " " "< 3.10 3.10< 0.404 0.404 D X76-13-1 "

Carbon disulfide " " "< 3.14 3.14< 1.01 1.01 D X75-15-0 "

trans-1,2-Dichloroethene " " "< 1.60 1.60< 0.404 0.404 D X156-60-5 "

1,1-Dichloroethane " " "< 0.82 0.82< 0.202 0.202 D X75-34-3 "

Methyl tert-butyl ether " " "< 0.73 0.73< 0.202 0.202 D X1634-04-4 "

Isopropyl alcohol " " "7.68 2.483.13 1.01 D X67-63-0 "

2-Butanone (MEK) " " "5.07 1.191.72 0.404 D X78-93-3 "

cis-1,2-Dichloroethene " " "< 1.60 1.60< 0.404 0.404 D X156-59-2 "

Hexane " " "63.11 3.5617.9 1.01 D X110-54-3 "

Ethyl acetate " " "15.28 1.464.24 0.404 D141-78-6 "

Chloroform " " "< 1.97 1.97< 0.404 0.404 D X67-66-3 "

Tetrahydrofuran " " "1.43 1.190.485 0.404 D109-99-9 "


1,1,1-Trichloroethane " " "< 2.20 2.20< 0.404 0.404 D X71-55-6 "

Benzene " " "< 1.29 1.29< 0.404 0.404 D X71-43-2 "

Carbon tetrachloride " " "2.79 2.540.444 0.404 D X56-23-5 "

Cyclohexane " " "< 1.39 1.39< 0.404 0.404 D X110-82-7 "

1,2-Dichloropropane " " "< 0.93 0.93< 0.202 0.202 D X78-87-5 "

Bromodichloromethane " " "< 2.71 2.71< 0.404 0.404 D X75-27-4 "

Trichloroethene " " "< 2.17 2.17< 0.404 0.404 D X79-01-6 "

1,4-Dioxane " " "< 3.64 3.64< 1.01 1.01 D X123-91-1 "

n-Heptane " " "< 0.83 0.83< 0.202 0.202 D X142-82-5 "

4-Methyl-2-pentanone (MIBK) " " "< 1.66 1.66< 0.404 0.404 D X108-10-1 "

cis-1,3-Dichloropropene " " "< 1.83 1.83< 0.404 0.404 D X10061-01-5 "

trans-1,3-Dichloropropene " " "< 1.83 1.83< 0.404 0.404 D X10061-02-6 "


Toluene " " "2.89 1.520.768 0.404 D X108-88-3 "

2-Hexanone (MBK) " " "2.15 1.660.525 0.404 D591-78-6 "

Dibromochloromethane " " "< 3.44 3.44< 0.404 0.404 D X124-48-1 "

1,2-Dibromoethane (EDB) " " "< 3.10 3.10< 0.404 0.404 D106-93-4 "




28-Jul-15 15:00


29-Jul-15

Client Project #

08-219892.00 Indoor/Ambinet AirOUTDOOR

SC10561-01



Volatile Organics in Air Low Level Prepared 03-Aug-15 AirP Can pressure: -16ppbv


Tetrachloroethene EPA TO-15L 03-Aug-15 1514972< 2.74 2.74< 0.404 0.404 D X127-18-4 BRF

Chlorobenzene " " "< 1.86 1.86< 0.404 0.404 D X108-90-7 "

1,1,1,2-Tetrachloroethane " " "< 2.78 2.78< 0.404 0.404 D630-20-6 "

Ethylbenzene " " "< 1.75 1.75< 0.404 0.404 D X100-41-4 "

m,p-Xylene " " "2.98 1.750.687 0.404 D X179601-23-1 "

Bromoform " " "< 2.09 2.09< 0.202 0.202 D X75-25-2 "

Styrene " " "< 1.72 1.72< 0.404 0.404 D X100-42-5 "

o-Xylene " " "< 1.75 1.75< 0.404 0.404 D X95-47-6 "

1,1,2,2-Tetrachloroethane " " "< 2.77 2.77< 0.404 0.404 D X79-34-5 "

Isopropylbenzene " " "< 1.99 1.99< 0.404 0.404 D X98-82-8 "

1,3,5-Trimethylbenzene " " "< 1.99 1.99< 0.404 0.404 D X108-67-8 "

4-Ethyltoluene " " "< 1.99 1.99< 0.404 0.404 D622-96-8 "


Naphthalene " " "< 5.29 5.29< 1.01 1.01 D X91-20-3 "

1,3-Dichlorobenzene " " "< 2.43 2.43< 0.404 0.404 D X541-73-1 "

Benzyl chloride " " "< 2.08 2.08< 0.404 0.404 D X100-44-7 "


sec-Butylbenzene " " "< 2.22 2.22< 0.404 0.404 D135-98-8 "

4-Isopropyltoluene " " "< 2.17 2.17< 0.404 0.404 D99-87-6 "


n-Butylbenzene " " "< 2.22 2.22< 0.404 0.404 D104-51-8 "

1,2,4-Trichlorobenzene " " "< 3.00 3.00< 0.404 0.404 D X120-82-1 "

Hexachlorobutadiene " " "< 2.15 2.15< 0.202 0.202 D X87-68-3 "

Surrogate recoveries:

70-130 % " " "460-00-4 "1084-Bromofluorobenzene




28-Jul-15 15:01


29-Jul-15

Client Project #

08-219892.00 Indoor/Ambinet AirINDOOR

SC10561-02



Volatile Organics in Air Low Level Prepared 03-Aug-15 Can pressure: -3ppbv

Dilution: 1 Can ID: 17156

Propene EPA TO-15L 03-Aug-15 1514972< 0.17 0.17< 0.100 0.100115-07-1 BRF

Dichlorodifluoromethane (Freon12) " " "16.66 0.493.37 0.100 X75-71-8 "

Chloromethane " " "< 0.21 0.21< 0.100 0.100 X74-87-3 "


114)

" " "< 0.70 0.70< 0.100 0.100 X76-14-2 "

Vinyl chloride " " "< 0.26 0.26< 0.100 0.100 X75-01-4 "

1,3-Butadiene " " "< 0.22 0.22< 0.100 0.100 X106-99-0 "

Bromomethane " " "< 0.39 0.39< 0.100 0.100 X74-83-9 "

Chloroethane " " "< 0.26 0.26< 0.100 0.100 X75-00-3 "

Acetone " " "77.47 1.1932.6 0.500 E X67-64-1 "

Trichlorofluoromethane (Freon 11) " " "7.42 0.561.32 0.100 X75-69-4 "

Ethanol " " "367.67 0.94195 0.500 E64-17-5 "

Acrylonitrile " " "< 0.22 0.22< 0.100 0.100 X107-13-1 "

1,1-Dichloroethene " " "< 0.40 0.40< 0.100 0.100 X75-35-4 "

Methylene chloride " " "0.83 0.350.240 0.100 X75-09-2 "

1,1,2-Trichlorotrifluoroethane (Freon 113) " " "0.77 0.770.100 0.100 X76-13-1 "

Carbon disulfide " " "< 1.56 1.56< 0.500 0.500 X75-15-0 "

trans-1,2-Dichloroethene " " "< 0.40 0.40< 0.100 0.100 X156-60-5 "

1,1-Dichloroethane " " "< 0.40 0.40< 0.100 0.100 X75-34-3 "

Methyl tert-butyl ether " " "< 0.36 0.36< 0.100 0.100 X1634-04-4 "

Isopropyl alcohol " " "6.90 1.232.81 0.500 X67-63-0 "

2-Butanone (MEK) " " "5.66 0.291.92 0.100 X78-93-3 "

cis-1,2-Dichloroethene " " "< 0.40 0.40< 0.100 0.100 X156-59-2 "

Hexane " " "6.06 1.761.72 0.500 X110-54-3 "

Ethyl acetate " " "5.33 0.361.48 0.100141-78-6 "

Chloroform " " "0.58 0.490.120 0.100 X67-66-3 "

Tetrahydrofuran " " "0.80 0.290.270 0.100109-99-9 "

1,2-Dichloroethane " " "< 0.40 0.40< 0.100 0.100 X107-06-2 "

1,1,1-Trichloroethane " " "< 0.55 0.55< 0.100 0.100 X71-55-6 "

Benzene " " "0.93 0.320.290 0.100 X71-43-2 "

Carbon tetrachloride " " "1.01 0.630.160 0.100 X56-23-5 "

Cyclohexane " " "4.65 0.341.35 0.100 X110-82-7 "

1,2-Dichloropropane " " "< 0.46 0.46< 0.100 0.100 X78-87-5 "

Bromodichloromethane " " "< 0.67 0.67< 0.100 0.100 X75-27-4 "

Trichloroethene " " "0.54 0.540.100 0.100 X79-01-6 "

1,4-Dioxane " " "< 1.80 1.80< 0.500 0.500 X123-91-1 "

n-Heptane " " "3.93 0.410.960 0.100 X142-82-5 "

4-Methyl-2-pentanone (MIBK) " " "2.13 0.410.520 0.100 X108-10-1 "

cis-1,3-Dichloropropene " " "< 0.45 0.45< 0.100 0.100 X10061-01-5 "

trans-1,3-Dichloropropene " " "< 0.45 0.45< 0.100 0.100 X10061-02-6 "

1,1,2-Trichloroethane " " "< 0.55 0.55< 0.100 0.100 X79-00-5 "

Toluene " " "4.89 0.381.30 0.100 X108-88-3 "

2-Hexanone (MBK) " " "0.53 0.410.130 0.100591-78-6 "

Dibromochloromethane " " "< 0.85 0.85< 0.100 0.100 X124-48-1 "

1,2-Dibromoethane (EDB) " " "< 0.77 0.77< 0.100 0.100106-93-4 "




28-Jul-15 15:01


29-Jul-15

Client Project #


SC10561-02



Volatile Organics in Air Low Level Prepared 03-Aug-15 Can pressure: -3ppbv


Tetrachloroethene EPA TO-15L 03-Aug-15 15149721.63 0.680.240 0.100 X127-18-4 BRF

Chlorobenzene " " "< 0.46 0.46< 0.100 0.100 X108-90-7 "

1,1,1,2-Tetrachloroethane " " "< 0.69 0.69< 0.100 0.100630-20-6 "

Ethylbenzene " " "1.00 0.430.230 0.100 X100-41-4 "

m,p-Xylene " " "3.99 0.870.920 0.200 X179601-23-1 "

Bromoform " " "< 1.03 1.03< 0.100 0.100 X75-25-2 "

Styrene " " "4.68 0.431.10 0.100 X100-42-5 "

o-Xylene " " "1.39 0.430.320 0.100 X95-47-6 "

1,1,2,2-Tetrachloroethane " " "< 0.69 0.69< 0.100 0.100 X79-34-5 "

Isopropylbenzene " " "< 0.49 0.49< 0.100 0.100 X98-82-8 "

1,3,5-Trimethylbenzene " " "1.18 0.490.240 0.100 X108-67-8 "

4-Ethyltoluene " " "0.74 0.490.150 0.100622-96-8 "

1,2,4-Trimethylbenzene " " "3.44 0.490.700 0.100 X95-63-6 "

Naphthalene " " "< 2.62 2.62< 0.500 0.500 X91-20-3 "

1,3-Dichlorobenzene " " "< 0.60 0.60< 0.100 0.100 X541-73-1 "

Benzyl chloride " " "< 0.52 0.52< 0.100 0.100 X100-44-7 "


sec-Butylbenzene " " "< 0.55 0.55< 0.100 0.100135-98-8 "

4-Isopropyltoluene " " "3.00 0.540.560 0.10099-87-6 "


n-Butylbenzene " " "0.77 0.550.140 0.100104-51-8 "

1,2,4-Trichlorobenzene " " "< 0.74 0.74< 0.100 0.100 X120-82-1 "

Hexachlorobutadiene " " "< 1.07 1.07< 0.100 0.100 X87-68-3 "



Re-analysis of Volatile Organics in Air Low Level Dilution: 20 GS1

Propene EPA TO-15L 05-Aug-15 1515121< 3.44 3.44< 2.00 2.00 D115-07-1 BRF

Dichlorodifluoromethane (Freon12) " " "15.82 9.893.20 2.00 D X75-71-8 "

Chloromethane " " "< 4.13 4.13< 2.00 2.00 D X74-87-3 "


114)

" " "< 13.98 13.98< 2.00 2.00 D X76-14-2 "

Vinyl chloride " " "< 5.11 5.11< 2.00 2.00 D X75-01-4 "

1,3-Butadiene " " "< 4.42 4.42< 2.00 2.00 D X106-99-0 "

Bromomethane " " "< 7.76 7.76< 2.00 2.00 D X74-83-9 "

Chloroethane " " "< 5.28 5.28< 2.00 2.00 D X75-00-3 "

Acetone " " "55.13 23.7623.2 10.0 D X67-64-1 "

Trichlorofluoromethane (Freon 11) " " "< 11.24 11.24< 2.00 2.00 D X75-69-4 "

Ethanol " " "373.33 18.85198 10.0 BsH, D64-17-5 "

Acrylonitrile " " "< 4.34 4.34< 2.00 2.00 D X107-13-1 "

1,1-Dichloroethene " " "< 7.93 7.93< 2.00 2.00 D X75-35-4 "

Methylene chloride " " "< 6.94 6.94< 2.00 2.00 D X75-09-2 "

1,1,2-Trichlorotrifluoroethane (Freon 113) " " "< 15.33 15.33< 2.00 2.00 D X76-13-1 "

Carbon disulfide " " "< 31.12 31.12< 10.0 10.0 D X75-15-0 "

trans-1,2-Dichloroethene " " "< 7.93 7.93< 2.00 2.00 D X156-60-5 "





28-Jul-15 15:01


29-Jul-15

Client Project #


SC10561-02



Volatile Organics in Air Low Level Prepared 05-Aug-15 GS1 Can pressure: -3ppbv

Dilution: 20

Methyl tert-butyl ether EPA TO-15L 05-Aug-15 1515121< 7.21 7.21< 2.00 2.00 D X1634-04-4 BRF

Isopropyl alcohol " " "< 24.54 24.54< 10.0 10.0 D X67-63-0 "

2-Butanone (MEK) " " "< 5.90 5.90< 2.00 2.00 D X78-93-3 "

cis-1,2-Dichloroethene " " "< 7.93 7.93< 2.00 2.00 D X156-59-2 "

Hexane " " "< 35.26 35.26< 10.0 10.0 D X110-54-3 "

Ethyl acetate " " "< 7.21 7.21< 2.00 2.00 D141-78-6 "

Chloroform " " "< 9.73 9.73< 2.00 2.00 D X67-66-3 "

Tetrahydrofuran " " "< 5.90 5.90< 2.00 2.00 D109-99-9 "



Benzene " " "< 6.38 6.38< 2.00 2.00 D X71-43-2 "

Carbon tetrachloride " " "< 12.58 12.58< 2.00 2.00 D X56-23-5 "

Cyclohexane " " "< 6.88 6.88< 2.00 2.00 D X110-82-7 "

1,2-Dichloropropane " " "< 9.24 9.24< 2.00 2.00 D X78-87-5 "

Bromodichloromethane " " "< 13.40 13.40< 2.00 2.00 D X75-27-4 "

Trichloroethene " " "< 10.75 10.75< 2.00 2.00 D X79-01-6 "

1,4-Dioxane " " "< 35.99 35.99< 10.0 10.0 D X123-91-1 "

n-Heptane " " "< 8.20 8.20< 2.00 2.00 D X142-82-5 "

4-Methyl-2-pentanone (MIBK) " " "< 8.20 8.20< 2.00 2.00 D X108-10-1 "

cis-1,3-Dichloropropene " " "< 9.08 9.08< 2.00 2.00 D X10061-01-5 "

trans-1,3-Dichloropropene " " "< 9.08 9.08< 2.00 2.00 D X10061-02-6 "


Toluene " " "< 7.53 7.53< 2.00 2.00 D X108-88-3 "

2-Hexanone (MBK) " " "< 8.20 8.20< 2.00 2.00 D591-78-6 "

Dibromochloromethane " " "< 17.04 17.04< 2.00 2.00 D X124-48-1 "

1,2-Dibromoethane (EDB) " " "< 15.37 15.37< 2.00 2.00 D106-93-4 "

Tetrachloroethene " " "< 13.56 13.56< 2.00 2.00 D X127-18-4 "

Chlorobenzene " " "< 9.21 9.21< 2.00 2.00 D X108-90-7 "

1,1,1,2-Tetrachloroethane " " "< 13.74 13.74< 2.00 2.00 D630-20-6 "

Ethylbenzene " " "< 8.67 8.67< 2.00 2.00 D X100-41-4 "

m,p-Xylene " " "< 17.34 17.34< 4.00 4.00 D X179601-23-1 "

Bromoform " " "< 20.67 20.67< 2.00 2.00 D X75-25-2 "

Styrene " " "< 8.51 8.51< 2.00 2.00 D X100-42-5 "

o-Xylene " " "< 8.67 8.67< 2.00 2.00 D X95-47-6 "

1,1,2,2-Tetrachloroethane " " "< 13.73 13.73< 2.00 2.00 D X79-34-5 "



4-Ethyltoluene " " "< 9.83 9.83< 2.00 2.00 D622-96-8 "


Naphthalene " " "< 52.35 52.35< 10.0 10.0 D X91-20-3 "


Benzyl chloride " " "< 10.31 10.31< 2.00 2.00 D X100-44-7 "






28-Jul-15 15:01


29-Jul-15

Client Project #


SC10561-02



Volatile Organics in Air Low Level Prepared 05-Aug-15 GS1 Can pressure: -3ppbv

Dilution: 20

4-Isopropyltoluene EPA TO-15L 05-Aug-15 1515121< 10.73 10.73< 2.00 2.00 D99-87-6 BRF


n-Butylbenzene " " "< 10.98 10.98< 2.00 2.00 D104-51-8 "

1,2,4-Trichlorobenzene " " "< 14.85 14.85< 2.00 2.00 D X120-82-1 "

Hexachlorobutadiene " " "< 21.33 21.33< 2.00 2.00 D X87-68-3 "






27-Jul-15 15:15


29-Jul-15

Client Project #

08-219892.00 Soil GasVP-2

SC10561-03



Aromatic VOCs in Air Prepared 10-Aug-15 R05 Can pressure: -9ppbv


Methyl tert-butyl ether EPA TO-15 11-Aug-15 1515354< 7.21 7.21< 2.00 2.00 D X1634-04-4 BRF

Benzene " " "< 6.38 6.38< 2.00 2.00 D X71-43-2 "

Toluene " " "< 7.53 7.53< 2.00 2.00 D X108-88-3 "

Ethylbenzene " " "< 8.67 8.67< 2.00 2.00 D X100-41-4 "

m,p-Xylene " " "< 17.34 17.34< 4.00 4.00 D X179601-23-1 "

o-Xylene " " "< 8.67 8.67< 2.00 2.00 D X95-47-6 "



1,2,4-Trimethylbenzene " " "11.80 9.832.40 2.00 D X95-63-6 "

Naphthalene " " "11.94 10.472.28 2.00 D X91-20-3 "



n-Butylbenzene " " "< 10.98 10.98< 2.00 2.00 D104-51-8 "






27-Jul-15 16:07


29-Jul-15

Client Project #

08-219892.00 Soil GasVP-1

SC10561-04



Aromatic VOCs in Air Prepared 10-Aug-15 AirP Can pressure: -13ppbv


Methyl tert-butyl ether EPA TO-15 11-Aug-15 1515354< 3.07 3.07< 0.850 0.850 D X1634-04-4 BRF

Benzene " " "< 2.71 2.71< 0.850 0.850 D X71-43-2 "

Toluene " " "13.55 3.203.60 0.850 D X108-88-3 "

Ethylbenzene " " "< 3.69 3.69< 0.850 0.850 D X100-41-4 "

m,p-Xylene " " "< 7.37 7.37< 1.70 1.70 D X179601-23-1 "

o-Xylene " " "< 3.69 3.69< 0.850 0.850 D X95-47-6 "



1,2,4-Trimethylbenzene " " "8.46 4.181.72 0.850 D X95-63-6 "

Naphthalene " " "4.89 4.450.935 0.850 D X91-20-3 "



n-Butylbenzene " " "< 4.67 4.67< 0.850 0.850 D104-51-8 "





Air Quality Analyses - Quality Control

Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD

LimitFlagAnalyte(s) *RDL

Batch 1514972 - General Air Prep

Blank (1514972-BLK1) Prepared & Analyzed: 03-Aug-15

ppbv< 0.100Propene 0.100

ppbv< 0.100Dichlorodifluoromethane (Freon12) 0.100

ppbv< 0.100Chloromethane 0.100

ppbv< 0.1001,2-Dichlorotetrafluoroethane (Freon 114) 0.100

ppbv< 0.100Vinyl chloride 0.100

ppbv< 0.1001,3-Butadiene 0.100

ppbv< 0.100Bromomethane 0.100

ppbv< 0.100Chloroethane 0.100

ppbv< 0.500Acetone 0.500

ppbv< 0.100Trichlorofluoromethane (Freon 11) 0.100

ppbv< 0.500Ethanol 0.500

ppbv< 0.100Acrylonitrile 0.100

ppbv< 0.1001,1-Dichloroethene 0.100

ppbv< 0.100Methylene chloride 0.100

ppbv< 0.1001,1,2-Trichlorotrifluoroethane (Freon 113) 0.100

ppbv< 0.500Carbon disulfide 0.500

ppbv< 0.100trans-1,2-Dichloroethene 0.100

ppbv< 0.1001,1-Dichloroethane 0.100

ppbv< 0.100Methyl tert-butyl ether 0.100

ppbv< 0.500Isopropyl alcohol 0.500

ppbv< 0.1002-Butanone (MEK) 0.100

ppbv< 0.100cis-1,2-Dichloroethene 0.100

ppbv< 0.500Hexane 0.500

ppbv< 0.100Ethyl acetate 0.100

ppbv< 0.100Chloroform 0.100

ppbv< 0.100Tetrahydrofuran 0.100


ppbv< 0.1001,1,1-Trichloroethane 0.100

ppbv< 0.100Benzene 0.100

ppbv< 0.100Carbon tetrachloride 0.100

ppbv< 0.100Cyclohexane 0.100

ppbv< 0.1001,2-Dichloropropane 0.100

ppbv< 0.100Bromodichloromethane 0.100

ppbv< 0.100Trichloroethene 0.100

ppbv< 0.5001,4-Dioxane 0.500

ppbv< 0.100n-Heptane 0.100

ppbv< 0.1004-Methyl-2-pentanone (MIBK) 0.100

ppbv< 0.100cis-1,3-Dichloropropene 0.100

ppbv< 0.100trans-1,3-Dichloropropene 0.100


ppbv< 0.100Toluene 0.100

ppbv< 0.1002-Hexanone (MBK) 0.100

ppbv< 0.100Dibromochloromethane 0.100

ppbv< 0.1001,2-Dibromoethane (EDB) 0.100

ppbv< 0.100Tetrachloroethene 0.100

ppbv< 0.100Chlorobenzene 0.100

ppbv< 0.1001,1,1,2-Tetrachloroethane 0.100

ppbv< 0.100Ethylbenzene 0.100

ppbv< 0.200m,p-Xylene 0.200

ppbv< 0.100Bromoform 0.100

ppbv< 0.100Styrene 0.100

ppbv< 0.100o-Xylene 0.100




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD





ppbv< 0.100Isopropylbenzene 0.100

ppbv< 0.1001,3,5-Trimethylbenzene 0.100

ppbv< 0.1004-Ethyltoluene 0.100


ppbv< 0.500Naphthalene 0.500

ppbv< 0.1001,3-Dichlorobenzene 0.100

ppbv< 0.100Benzyl chloride 0.100


ppbv< 0.100sec-Butylbenzene 0.100

ppbv< 0.1004-Isopropyltoluene 0.100


ppbv< 0.100n-Butylbenzene 0.100

ppbv< 0.1001,2,4-Trichlorobenzene 0.100

ppbv< 0.100Hexachlorobutadiene 0.100

10.0 70-130Surrogate: 4-Bromofluorobenzene 10.3 ppbv 103

LCS (1514972-BS1) Prepared & Analyzed: 03-Aug-15

2.00 70-130ppbv2.54 127Propene

2.00 70-130ppbv2.56 128Dichlorodifluoromethane (Freon12)

2.00 70-130ppbv1.60 80Chloromethane

2.00 70-130ppbv2.19 1101,2-Dichlorotetrafluoroethane (Freon 114)

2.00 70-130ppbv2.05 102Vinyl chloride

2.00 70-130ppbv2.13 1061,3-Butadiene

2.00 70-130ppbv1.49 74Bromomethane

2.00 70-130ppbv1.88 94Chloroethane

2.00 70-130ppbv2.09 104Acetone

2.00 70-130ppbv2.38 119Trichlorofluoromethane (Freon 11)

2.00 70-130ppbv2.35 118Ethanol

2.00 50-150ppbv2.14 107Acrylonitrile

2.00 70-130ppbv2.26 1131,1-Dichloroethene

2.00 70-130ppbv2.13 106Methylene chloride

2.00 70-130ppbv2.34 1171,1,2-Trichlorotrifluoroethane (Freon 113)

2.00 70-130ppbv2.17 108Carbon disulfide

2.00 70-130ppbv2.27 114trans-1,2-Dichloroethene

2.00 70-130ppbv2.22 1111,1-Dichloroethane

2.00 70-130ppbv2.18 109Methyl tert-butyl ether

2.00 70-130ppbv2.14 107Isopropyl alcohol

2.00 70-130ppbv2.25 1122-Butanone (MEK)

2.00 70-130ppbv2.37 118cis-1,2-Dichloroethene

2.00 70-130ppbv2.37 118Hexane

2.00 70-130ppbv2.12 106Ethyl acetate

2.00 70-130ppbv2.30 115Chloroform

2.00 70-130ppbv2.16 108Tetrahydrofuran


2.00 70-130ppbv2.35 1181,1,1-Trichloroethane

2.00 70-130ppbv2.17 108Benzene

2.00 70-130ppbv2.31 116Carbon tetrachloride

2.00 70-130ppbv2.21 110Cyclohexane

2.00 70-130ppbv1.95 981,2-Dichloropropane

2.00 70-130ppbv2.21 110Bromodichloromethane

2.00 70-130ppbv2.13 106Trichloroethene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




2.00 50-150ppbv1.99 1001,4-Dioxane

2.00 70-130ppbv2.04 102n-Heptane

2.00 70-130ppbv2.12 1064-Methyl-2-pentanone (MIBK)

2.00 70-130ppbv2.09 104cis-1,3-Dichloropropene

2.00 70-130ppbv2.16 108trans-1,3-Dichloropropene


2.00 70-130ppbv2.16 108Toluene

2.00 70-130ppbv2.24 1122-Hexanone (MBK)

2.00 70-130ppbv2.37 118Dibromochloromethane

2.00 70-130ppbv2.19 1101,2-Dibromoethane (EDB)

2.00 70-130ppbv2.23 112Tetrachloroethene

2.00 70-130ppbv2.05 102Chlorobenzene

2.00 50-150ppbv2.34 1171,1,1,2-Tetrachloroethane

2.00 70-130ppbv2.15 108Ethylbenzene

4.00 70-130ppbv4.35 109m,p-Xylene

2.00 70-130ppbv2.53 126Bromoform

2.00 70-130ppbv2.25 112Styrene

2.00 70-130ppbv2.14 107o-Xylene


2.00 50-150ppbv2.19 110Isopropylbenzene

2.00 70-130ppbv2.22 1111,3,5-Trimethylbenzene

2.00 70-130ppbv2.27 1144-Ethyltoluene


2.00 50-150ppbv2.44 122Naphthalene

2.00 70-130ppbv2.15 1081,3-Dichlorobenzene

2.00 70-130ppbv2.11 106Benzyl chloride


2.00 50-150ppbv2.20 110sec-Butylbenzene

2.00 50-150ppbv2.26 1134-Isopropyltoluene


2.00 50-150ppbv2.26 113n-Butylbenzene

2.00 70-130ppbv2.35 1181,2,4-Trichlorobenzene

2.00 70-130ppbv2.27 114Hexachlorobutadiene




ppbv< 0.100Propene 0.100

ppbv< 0.100Dichlorodifluoromethane (Freon12) 0.100

ppbv< 0.100Chloromethane 0.100

ppbv< 0.1001,2-Dichlorotetrafluoroethane (Freon 114) 0.100

ppbv< 0.100Vinyl chloride 0.100

ppbv< 0.1001,3-Butadiene 0.100

ppbv< 0.100Bromomethane 0.100

ppbv< 0.100Chloroethane 0.100

ppbv< 0.500Acetone 0.500

ppbv< 0.100Trichlorofluoromethane (Freon 11) 0.100

ppbv< 0.500Ethanol 0.500

ppbv< 0.100Acrylonitrile 0.100

ppbv< 0.1001,1-Dichloroethene 0.100

ppbv< 0.100Methylene chloride 0.100

ppbv< 0.1001,1,2-Trichlorotrifluoroethane (Freon 113) 0.100




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




ppbv< 0.500Carbon disulfide 0.500

ppbv< 0.100trans-1,2-Dichloroethene 0.100



ppbv< 0.500Isopropyl alcohol 0.500

ppbv< 0.1002-Butanone (MEK) 0.100

ppbv< 0.100cis-1,2-Dichloroethene 0.100

ppbv< 0.500Hexane 0.500

ppbv< 0.100Ethyl acetate 0.100

ppbv< 0.100Chloroform 0.100

ppbv< 0.100Tetrahydrofuran 0.100




ppbv< 0.100Carbon tetrachloride 0.100

ppbv< 0.100Cyclohexane 0.100

ppbv< 0.1001,2-Dichloropropane 0.100

ppbv< 0.100Bromodichloromethane 0.100

ppbv< 0.100Trichloroethene 0.100

ppbv< 0.5001,4-Dioxane 0.500

ppbv< 0.100n-Heptane 0.100

ppbv< 0.1004-Methyl-2-pentanone (MIBK) 0.100

ppbv< 0.100cis-1,3-Dichloropropene 0.100

ppbv< 0.100trans-1,3-Dichloropropene 0.100



ppbv< 0.1002-Hexanone (MBK) 0.100

ppbv< 0.100Dibromochloromethane 0.100

ppbv< 0.1001,2-Dibromoethane (EDB) 0.100

ppbv< 0.100Tetrachloroethene 0.100

ppbv< 0.100Chlorobenzene 0.100




ppbv< 0.100Bromoform 0.100

ppbv< 0.100Styrene 0.100





ppbv< 0.1004-Ethyltoluene 0.100




ppbv< 0.100Benzyl chloride 0.100






ppbv< 0.1001,2,4-Trichlorobenzene 0.100

ppbv< 0.100Hexachlorobutadiene 0.100




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD






2.00 70-130ppbv2.59 130Propene

2.00 70-130ppbv2.40 120Dichlorodifluoromethane (Freon12)

2.00 70-130ppbv1.65 82Chloromethane

2.00 70-130ppbv2.18 1091,2-Dichlorotetrafluoroethane (Freon 114)

2.00 70-130ppbv2.19 110Vinyl chloride

2.00 70-130ppbv2.23 1121,3-Butadiene

2.00 70-130ppbv1.41 70Bromomethane

2.00 70-130ppbv1.89 94Chloroethane

2.00 70-130ppbv2.36 118Acetone

2.00 70-130ppbv2.33 116Trichlorofluoromethane (Freon 11)

2.00 70-130ppbvZ-22.74 137Ethanol

2.00 50-150ppbv2.15 108Acrylonitrile

2.00 70-130ppbv2.31 1161,1-Dichloroethene

2.00 70-130ppbv2.15 108Methylene chloride

2.00 70-130ppbv2.37 1181,1,2-Trichlorotrifluoroethane (Freon 113)

2.00 70-130ppbv2.36 118Carbon disulfide

2.00 70-130ppbv2.37 118trans-1,2-Dichloroethene



2.00 70-130ppbv2.33 116Isopropyl alcohol

2.00 70-130ppbv2.34 1172-Butanone (MEK)

2.00 70-130ppbv2.43 122cis-1,2-Dichloroethene

2.00 70-130ppbvZ-22.73 136Hexane

2.00 70-130ppbv2.02 101Ethyl acetate

2.00 70-130ppbv2.30 115Chloroform

2.00 70-130ppbv2.31 116Tetrahydrofuran



2.00 70-130ppbv2.28 114Benzene

2.00 70-130ppbv2.33 116Carbon tetrachloride

2.00 70-130ppbv2.29 114Cyclohexane

2.00 70-130ppbv1.92 961,2-Dichloropropane

2.00 70-130ppbv2.11 106Bromodichloromethane

2.00 70-130ppbv2.04 102Trichloroethene

2.00 50-150ppbv1.96 981,4-Dioxane

2.00 70-130ppbv1.99 100n-Heptane

2.00 70-130ppbv2.14 1074-Methyl-2-pentanone (MIBK)

2.00 70-130ppbv2.06 103cis-1,3-Dichloropropene

2.00 70-130ppbv2.00 100trans-1,3-Dichloropropene


2.00 70-130ppbv2.11 106Toluene

2.00 70-130ppbv2.18 1092-Hexanone (MBK)

2.00 70-130ppbv2.24 112Dibromochloromethane

2.00 70-130ppbv2.11 1061,2-Dibromoethane (EDB)

2.00 70-130ppbv2.15 108Tetrachloroethene

2.00 70-130ppbv2.07 104Chlorobenzene



4.00 70-130ppbv4.42 110m,p-Xylene




Result Units

Spike

Level

Source

Result %REC

%REC

Limits RPD

RPD




2.00 70-130ppbv2.51 126Bromoform

2.00 70-130ppbv2.26 113Styrene

2.00 70-130ppbv2.18 109o-Xylene




2.00 70-130ppbv2.30 1154-Ethyltoluene




2.00 70-130ppbv2.04 102Benzyl chloride






2.00 70-130ppbv2.39 1201,2,4-Trichlorobenzene

2.00 70-130ppbv2.24 112Hexachlorobutadiene




















10.0 70-130ppbv8.61 86Benzene

10.0 70-130ppbv9.10 91Toluene


20.0 70-130ppbv20.1 100m,p-Xylene

10.0 70-130ppbv9.78 98o-Xylene











Certificate of Analysis

Container Type:

Canister ID:

Date of Analysis:

Analyst's Initials:0497

Summa canister 6 liter 7/8/2015

EK

The sampling device detailed above has been tested and is certified to the limits for the target compounds as listed below.

Analyte Quantitation Limit (ppbv) Analyte Quantitation Limit (ppbv)

Acetone

Acrylonitrile

Benzene

Benzyl chloride

Bromodichloromethane

Bromoform

Bromomethane

1,3-Butadiene

2-Butanone (MEK)

Carbon disulfide


Chlorobenzene

Chloroethane

1,4-Dioxane

n-Butylbenzene

Chloroform

Chloromethane

Cyclohexane

Dibromochloromethane

1,2-Dibromoethane (EDB)

1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

Dichlorodifluoromethane (Freon12)

1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethene

cis-1,2-Dichloroethene

trans-1,2-Dichloroethene

1,2-Dichloropropane

cis-1,3-Dichloropropene

trans-1,3-Dichloropropene

1,2-Dichlorotetrafluoroethane (Freon 114)

Isopropylbenzene

Ethanol

4-Isopropyl Toluene

Ethyl acetate

Ethylbenzene

4-Ethyltoluene

n-Heptane

Hexachlorobutadiene

Hexane

2-Hexanone (MBK)

Isopropyl alcohol



Methylene chloride

Naphthalene

1,1,1,2-Tetrachlorethane

Propene

Styrene

1,1,2,2-Tetrachloroethane

Tetrachloroethene

Tetrahydrofuran

Toluene

1,2,4-Trichlorobenzene

1,1,1-Trichloroethane


Trichloroethene

1,1,2-Trichlorotrifluoroethane (Freon 113)

Trichlorofluoromethane (Freon 11)



Vinyl chloride

m,p-Xylene

o-Xylene

sec-Butylbenzene

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.5

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.5

<0.1

<0.1

<0.1

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

This certification applies to the following sampling devices:

0497




Container Type:

Canister ID:

Date of Analysis:



BRF



Acetone

Acrylonitrile

Benzene

Benzyl chloride


Bromoform

Bromomethane

1,3-Butadiene

2-Butanone (MEK)

Carbon disulfide


Chlorobenzene

Chloroethane

1,4-Dioxane

n-Butylbenzene

Chloroform

Chloromethane

Cyclohexane



1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene


1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethene



1,2-Dichloropropane




Isopropylbenzene

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

Ethanol

4-Isopropyl Toluene

Ethyl acetate

Ethylbenzene

4-Ethyltoluene

n-Heptane

Hexachlorobutadiene

Hexane

2-Hexanone (MBK)

Isopropyl alcohol



Methylene chloride

Naphthalene


Propene

Styrene


Tetrachloroethene

Tetrahydrofuran

Toluene




Trichloroethene





Vinyl chloride

m,p-Xylene

o-Xylene

sec-Butylbenzene

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2


0715




Container Type:

Canister ID:

Date of Analysis:



NAA



Acetone

Acrylonitrile

Benzene

Benzyl chloride


Bromoform

Bromomethane

1,3-Butadiene

2-Butanone (MEK)

Carbon disulfide


Chlorobenzene

Chloroethane

1,4-Dioxane

n-Butylbenzene

Chloroform

Chloromethane

Cyclohexane



1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene


1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethene



1,2-Dichloropropane




Isopropylbenzene

Ethanol

4-Isopropyl Toluene

Ethyl acetate

Ethylbenzene

4-Ethyltoluene

n-Heptane

Hexachlorobutadiene

Hexane

2-Hexanone (MBK)

Isopropyl alcohol



Methylene chloride

Naphthalene


Propene

Styrene


Tetrachloroethene

Tetrahydrofuran

Toluene




Trichloroethene





Vinyl chloride

m,p-Xylene

o-Xylene

sec-Butylbenzene

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.5

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.5

<0.1

<0.1

<0.1

<0.5

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1


17156




Container Type:

Canister ID:

Date of Analysis:



BRF



Acetone

Acrylonitrile

Benzene

Benzyl chloride


Bromoform

Bromomethane

1,3-Butadiene

2-Butanone (MEK)

Carbon disulfide


Chlorobenzene

Chloroethane

1,4-Dioxane

n-Butylbenzene

Chloroform

Chloromethane

Cyclohexane



1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene


1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethene



1,2-Dichloropropane




Isopropylbenzene

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

Ethanol

4-Isopropyl Toluene

Ethyl acetate

Ethylbenzene

4-Ethyltoluene

n-Heptane

Hexachlorobutadiene

Hexane

2-Hexanone (MBK)

Isopropyl alcohol



Methylene chloride

Naphthalene


Propene

Styrene


Tetrachloroethene

Tetrahydrofuran

Toluene




Trichloroethene





Vinyl chloride

m,p-Xylene

o-Xylene

sec-Butylbenzene

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2


0212



Notes and Definitions

Due to the low volume of sample collected it was necessary to pressurize the Summa can in laboratory prior to analysis

which results in elevated reporting limits.

AirP

Data for this analyte may be biased high based on QC spike recoveries.BsH

Data reported from a dilutionD

This flag indicates the concentration for this analyte is an estimated value due to exceeding the calibration range or

interferences resulting in a biased final concentration.

E

Sample dilution required for high concentration of target analytes to be within the instrument calibration range.GS1

Elevated Reporting Limits due to the presence of high levels of non-target analytes; sample may not meet client requested

reporting limit for this reason.

R05

analyte passed in CCV1Z-2

RPD Relative Percent Difference

dry Sample results reported on a dry weight basis

NR Not Reported

Laboratory Control Sample (LCS): A known matrix spiked with compound(s) representative of the target analytes, which is used to

document laboratory performance.

Matrix Duplicate: An intra-laboratory split sample which is used to document the precision of a method in a given sample matrix.

Matrix Spike: An aliquot of a sample spiked with a known concentration of target analyte(s). The spiking occurs prior to sample

preparation and analysis. A matrix spike is used to document the bias of a method in a given sample matrix.

Method Blank: An analyte-free matrix to which all reagents are added in the same volumes or proportions as used in sample

processing. The method blank should be carried through the complete sample preparation and analytical procedure. The method blank

is used to document contamination resulting from the analytical process.

Method Detection Limit (MDL): The minimum concentration of a substance that can be measured and reported with 99% confidence

that the analyte concentration is greater than zero and is determined from analysis of a sample in a given matrix type containing the

analyte.

Reportable Detection Limit (RDL): The lowest concentration that can be reliably achieved within specified limits of precision and

accuracy during routine laboratory operating conditions. For many analytes the RDL analyte concentration is selected as the lowest

non-zero standard in the calibration curve. While the RDL is approximately 5 to 10 times the MDL, the RDL for each sample takes

into account the sample volume/weight, extract/digestate volume, cleanup procedures and, if applicable, dry weight correction. Sample

RDLs are highly matrix-dependent.

Surrogate: An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical

process, but which is not normally found in environmental samples. These compounds are spiked into all blanks, standards, and

samples prior to analysis. Percent recoveries are calculated for each surrogate.

Continuing Calibration Verification: The calibration relationship established during the initial calibration must be verified at periodic

intervals. Concentrations, intervals, and criteria are method specific.

Validated by:

June O'Connor

Nicole Leja



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