transmittal draft letter w logo - Records Collections · Surr: 2,4,6-Tribromophenol 88.6 36-126...

Mr. Dion Novak March 17, 2009 Page 4 of 4

J:\020871 ESL SPL SAI\Draft Tech Memo\Final Submittal\SPL Inv TECH MEMO 10 - IB 3c.doc

the laboratory analytical data in accordance with the QAPP (Appendix G-1 of the RI/FS Work Plan; Alcoa/City of East St. Louis). The QAA Data Validation Summary is included in Attachment 2. Laboratory Results The results of the laboratory analyses are presented in Table 1. Of the composite samples taken from the seven investigatory borings, all seven locations had detections of Arsenic over the Regional Screening limit (RSL) and two locations had detections of Lead over the RSL. These concentrations are consistent with the expected results given the materials formerly stockpiled in IB-3c. These results are used in the Draft Revised Baseline Human Health Risk Assessment. Investigation-Derived Waste Investigation-derived waste (IDW) included two 55-gallon drums containing decontamination water, excess soil cuttings and personal protection equipment (PPE). Composite soil and water samples were collected from the drums and submitted to e-Lab Analytical to be analyzed for TCLP Mercury using Method SW7470 and TCLP Metals using Method SW 1311/6020. Based upon the analytical results for waste characterization, the IDW drum contents were determined to be non-hazardous. The drum contents were placed in the on-Site residue disposal area. REFERENCES Alcoa Inc./City of East St. Louis, 2003. Remedial Investigation and Feasibility Study Work Plan. North

Alcoa Site, East St. Louis, Illinois. Report prepared for the Aluminum Company of America and the City of East St. Louis. July 24.

Alcoa Inc., 2004. Technical Memorandum 4: Reconnaissance and Test Pits in the Spent Pot Lining

Storage Area Investigative Block 3c, North Alcoa Site, East St. Louis, IL. Memorandum dated February 26, 2004 and addressed to Mr. Dion Novak of EPA Region 5 from Mr. Ron Weddell of Alcoa

⎯⎯⎯, 2005. Draft Remedial Investigation Report. North Alcoa Site, East St. Louis, Illinois. Report

prepared for the Aluminum Company of America and the City of East St. Louis. February 22. ⎯⎯⎯, 2006a. Completion Report: Spent Pot Liner Removal, North Alcoa Site, East St. Louis, IL.

Memorandum dated December 6, 2006 and addressed to Mr. Dion Novak of EPA Region 5 from Mr. Ron Weddell of Alcoa.

⎯⎯⎯, 2006b. Spent Pot Liner Removal Plan, North Alcoa Site, East St. Louis, IL. Memorandum dated

March 2, 2006 and addressed to Mr. Dion Novak of EPA Region 5 from Mr. Ronald Morosky of Alcoa.

United States Environmental Protection Agency (EPA), 1988. Guidance for Conducting Remedial

Investigations and Feasibility Studies Under CERCLA. Office of Emergency and Remedial Response. OSWER Directive 9355.3-01. EPA/540/G-89/004. October.

⎯⎯⎯, 1989. The Feasibility Study: Development and Screening of Remedial Action Alternatives.

Office of Solid Waste and Emergency Response. Directive 9355.3-01FS3. November.

TABLE

TABLE 1SUMMARY OF SOIL ANALYTICAL DATA

FORMER SPL AREA (IB-3C) INVESTIGATION

COPC

RSL(1) 3c-UP-001-3001 3c-UP-001-3002 3c-UP-001-3003 3c-UP-001-3004 3c-UP-001-3005 3c-UP-001-3006 3c-UP-001-3007

(mg/kg) mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dryAluminum 99,000 90,900 70,400 81,600 61,600 68,600 90,800 62,500 Antimony 410 2.15 1.24 J 1.92 2.40 1.19 1.46 1.47 Arsenic 1.6 23.5 25.5 18.9 26.0 25.9 24.1 22.4 Barium 19,000 151 145 113 131 151 149 127 Cadmium 810 0.540 J 0.696 J 1.36 1.14 0.496 J 0.959 0.984 Chromium 1400 30.4 43.7 33.6 56.5 43.4 35.5 41.6 Cobalt 30 1.60 1.78 2.94 3.35 1.75 1.41 1.27 Copper 4100 24.9 16.8 36.0 101 16.0 23.0 33.4 Lead 1000(a) 457 451 1,030 640 117 712 1,020 Manganese 2300 528 289 303 277 255 282 254 Total Mercury 31 0.269 0.18 0.29 0.117 0.208 0.256 0.188Nickel 2000 3.26 5.03 22.5 14.6 6.86 5.77 6.67 Selenium 510 2.35 3.28 3.52 2.65 2.89 3.24 3.11 Silver 510 0.331 J 0.384 J 0.470 J 0.564 J 0.228 J 0.453 J 0.697 JThallium 8.2 0.299 J 0.185 J 0.242 J 0.296 J 0.186 J 0.173 J 0.209 JVanadium 520 105 149 114 111 165 135 127 Zinc 31000 40.3 41.5 997 208 74.8 173 117


(µg/kg) µg/Kg-dry µg/Kg-dry µg/Kg-dry µg/Kg-dry µg/Kg-dry µg/Kg-dry µg/Kg-dry2-Methylnapthalene -- U U U U U U UAcenaphthene 3.30E+07 U U U U U U UAcenaphthylene 3.3E+07(b) U U U U U U UAnthracene 1.70E+07 U U U U U U UBenzo(a)anthracene 2.10E+03 U 10 U U U 14 UBenzo(a)pyrene 2.10E+02 U 44 U 22 U 48 UBenzo(b)fluoranthene 2.10E+03 U 40 U 21 U 51 UBenzo(g,h,i)perylene 1.70E+06 U 29 U 16 U 29 UBenzo(k)fluoranthene 2.10E+04 U 38 U 17 U 35 UChrysene 2.10E+05 U 52 U 22 9.8 46 11 Dibenz(a,h)anthracene 2.10E+02 U 16 U U U 14 UFluoranthene 2.20E+06 14 85 U 43 20 64 15 Fluorene 2.20E+06 U U U U U U UIndeno(1,2,3-cd)pyrene 2.10E+03 U 27 U 15 U 29 UNaphthalene 2.00E+04 U U U U U U UPhenanthrene 1.70E+06 U 35 U 13 10 64 UPyrene 1.70E+06 15 78 U 37 17 74 17


(mg/kg) mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dry mg/Kg-dryFluoride 6100(c) 19.1 40.2 375 109 26.8 123 10.8Cyanide 2000(d) 91.3 41.3 310 196 11.1 183 377 pH (s.u.) -- 10.4 10.1 10.1 9.03 11.7 10.8 10.2

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance.(a) EPA Region 5 industrial screening value for lead; residential screening level is 400 mg/kg..(b) RSL for surrogate chemical, acenaphthene.(c) RSL for Fluorine, which is soluble form of Fluoride, and form on which RfD is based.(d) RSL for free Cyanide conservatively used for total cyanide.

Notes:Values highlighted exceed the RSL.U-Analyzed for but not detectedJ-Analyte detected below quantitation limits

Sample Result

Metals

SVOCs

Wet Chemistry

FIGURE

ATTACHMENT 1

BORING LOGS

ATTACHMENT 2

LABORATORY DATA REPORTS AND

DATA VALIDATION SUMMARY

Project: North Alcoa Site-E St. Louis/020738Sample ID: ALCOA-ESTL-3C-UP-001-3004-10Collection Date: 11/8/2007 12:40:00 PM Matrix: SOIL

Analyses Result Qual Units Date AnalyzedReport Limit

Client: Tetra TechWork Order: 0711246

Dilution Factor

Lab ID: 0711246-01

e-Lab Analytical, Inc. Date: November 29, 2007

MDL

MERCURY, TOTAL SW7471A Analyst: JCJPrep: SW7471A / 11/14/07Method:Mercury 11/14/200718.6 µg/Kg-dry 1117 2.0

ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,250 mg/Kg-dry 100061,600 460Antimony 11/15/20071.25 mg/Kg-dry 22.40 0.35Arsenic 11/14/20070.624 mg/Kg-dry 126.0 0.16Barium 11/14/20070.624 mg/Kg-dry 1131 0.087Cadmium 11/14/20070.624 mg/Kg-dry 11.14 0.037Chromium 11/14/20070.624 mg/Kg-dry 156.5 0.087Cobalt 11/14/20070.624 mg/Kg-dry 13.35 0.021Copper 11/14/20070.624 mg/Kg-dry 1101 0.050Lead 11/15/200762.4 mg/Kg-dry 100640 11Manganese 11/15/200762.4 mg/Kg-dry 100277 6.2Nickel 11/14/20070.624 mg/Kg-dry 114.6 0.10Selenium 11/14/20070.624 mg/Kg-dry 12.65 0.24Silver J 11/14/20070.624 mg/Kg-dry 10.564 0.025Thallium J 11/14/20070.624 mg/Kg-dry 10.296 0.062Vanadium 11/14/20070.624 mg/Kg-dry 1111 0.070Zinc 11/14/20071.25 mg/Kg-dry 1208 0.12

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/14/20079.2 µg/Kg-dry 1U 9.2Acenaphthene 11/14/20079.2 µg/Kg-dry 1U 9.2Acenaphthylene 11/14/20079.2 µg/Kg-dry 1U 9.2Anthracene 11/14/20079.2 µg/Kg-dry 1U 9.2Benz(a)anthracene 11/14/20079.2 µg/Kg-dry 122 9.2Benzo(a)pyrene 11/14/20079.2 µg/Kg-dry 119 9.2Benzo(b)fluoranthene 11/14/20079.2 µg/Kg-dry 121 9.2Benzo(g,h,i)perylene 11/14/20079.2 µg/Kg-dry 116 9.2Benzo(k)fluoranthene 11/14/20079.2 µg/Kg-dry 117 9.2Chrysene 11/14/20079.2 µg/Kg-dry 122 9.2Dibenz(a,h)anthracene 11/14/20079.2 µg/Kg-dry 1U 9.2Fluoranthene 11/14/20079.2 µg/Kg-dry 143 9.2Fluorene 11/14/20079.2 µg/Kg-dry 1U 9.2Indeno(1,2,3-cd)pyrene 11/14/20079.2 µg/Kg-dry 115 9.2Naphthalene 11/14/20079.2 µg/Kg-dry 1U 9.2Phenanthrene 11/14/20079.2 µg/Kg-dry 113 9.2Pyrene 11/14/20079.2 µg/Kg-dry 137 9.2 Surr: 2,4,6-Tribromophenol 11/14/200736-126 %REC 188.6 Surr: 2-Fluorobiphenyl 11/14/200743-125 %REC 163.4

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method Blank

S - Spike Recovery outside accepted recovery limitsU - Analyzed for but Not Detected

E - Value above quantitation range

* - Value exceeds Maximum Contaminant Level H - Analyzed outside of Hold Time AR Page 1 of 18

P - Dual Column results RPD > 40%




Dilution Factor

Lab ID: 0711246-01


MDL

Surr: 2-Fluorophenol 11/14/200737-125 %REC 189.5 Surr: 4-Terphenyl-d14 11/14/200732-125 %REC 1102 Surr: Nitrobenzene-d5 11/14/200737-125 %REC 154.3 Surr: Phenol-d6 11/14/200740-125 %REC 163.0

ANIONS BY ION CHROMATOGRAPHY, MODIFIED SW9056 Analyst: IGFPrep: SW9056 / 11/19/07Method:Fluoride 11/19/20071.40 mg/Kg-dry 1109 0.14 Surr: Dichloroacetic acid (surr) 11/19/20070-0 %REC 10 Surr: Selenate (surr) 11/19/200785-115 %REC 1106

CYANIDE, TOTAL SW9014 Analyst: RPMMethod:Cyanide 11/21/200728.0 mg/Kg-dry 10196 8.4

PERCENT MOISTURE E160.3 Analyst: MAMMethod:Percent Moisture 11/14/20070.0100 wt% 128.5 0.010

PH IN SOLID SW9045B Analyst: MAMMethod:pH 11/14/20070.100 pH Units 19.03 0.10

Qualifiers:










Dilution Factor

Lab ID: 0711246-02


MDL


ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,460 mg/Kg-dry 100062,500 540Antimony 11/15/20071.46 mg/Kg-dry 21.47 0.41Arsenic 11/14/20070.730 mg/Kg-dry 122.4 0.19Barium 11/14/20070.730 mg/Kg-dry 1127 0.10Cadmium 11/14/20070.730 mg/Kg-dry 10.984 0.044Chromium 11/14/20070.730 mg/Kg-dry 141.6 0.10Cobalt 11/14/20070.730 mg/Kg-dry 11.27 0.025Copper 11/14/20070.730 mg/Kg-dry 133.4 0.058Lead 11/16/200773.0 mg/Kg-dry 1001,020 13Manganese 11/16/200773.0 mg/Kg-dry 100254 7.3Nickel 11/14/20070.730 mg/Kg-dry 16.67 0.12Selenium 11/14/20070.730 mg/Kg-dry 13.11 0.28Silver J 11/14/20070.730 mg/Kg-dry 10.697 0.029Thallium J 11/14/20070.730 mg/Kg-dry 10.209 0.073Vanadium 11/14/20070.730 mg/Kg-dry 1127 0.082Zinc 11/14/20071.46 mg/Kg-dry 1117 0.15

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/14/200711 µg/Kg-dry 1U 11Acenaphthene 11/14/200711 µg/Kg-dry 1U 11Acenaphthylene 11/14/200711 µg/Kg-dry 1U 11Anthracene 11/14/200711 µg/Kg-dry 1U 11Benz(a)anthracene 11/14/200711 µg/Kg-dry 1U 11Benzo(a)pyrene 11/14/200711 µg/Kg-dry 1U 11Benzo(b)fluoranthene 11/14/200711 µg/Kg-dry 1U 11Benzo(g,h,i)perylene 11/14/200711 µg/Kg-dry 1U 11Benzo(k)fluoranthene 11/14/200711 µg/Kg-dry 1U 11Chrysene 11/14/200711 µg/Kg-dry 111 11Dibenz(a,h)anthracene 11/14/200711 µg/Kg-dry 1U 11Fluoranthene 11/14/200711 µg/Kg-dry 115 11Fluorene 11/14/200711 µg/Kg-dry 1U 11Indeno(1,2,3-cd)pyrene 11/14/200711 µg/Kg-dry 1U 11Naphthalene 11/14/200711 µg/Kg-dry 1U 11Phenanthrene 11/14/200711 µg/Kg-dry 1U 11Pyrene 11/14/200711 µg/Kg-dry 117 11 Surr: 2,4,6-Tribromophenol 11/14/200736-126 %REC 185.8 Surr: 2-Fluorobiphenyl 11/14/200743-125 %REC 176.9

Qualifiers:










Dilution Factor

Lab ID: 0711246-02


MDL

Surr: 2-Fluorophenol 11/14/200737-125 %REC 188.0 Surr: 4-Terphenyl-d14 11/14/200732-125 %REC 199.0 Surr: Nitrobenzene-d5 11/14/200737-125 %REC 167.7 Surr: Phenol-d6 11/14/200740-125 %REC 171.5

ANIONS BY ION CHROMATOGRAPHY, MODIFIED SW9056 Analyst: IGFPrep: SW9056 / 11/19/07Method:Fluoride 11/19/20071.60 mg/Kg-dry 110.8 0.16 Surr: Dichloroacetic acid (surr) 11/19/20070-0 %REC 10 Surr: Selenate (surr) 11/19/200785-115 %REC 1103

CYANIDE, TOTAL SW9014 Analyst: RPMMethod:Cyanide 11/21/200764.2 mg/Kg-dry 20377 19



Qualifiers:










Dilution Factor

Lab ID: 0711246-03


MDL


ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,300 mg/Kg-dry 100081,600 480Antimony 11/15/20071.30 mg/Kg-dry 21.92 0.36Arsenic 11/14/20070.650 mg/Kg-dry 118.9 0.17Barium 11/14/20070.650 mg/Kg-dry 1113 0.091Cadmium 11/14/20070.650 mg/Kg-dry 11.36 0.039Chromium 11/14/20070.650 mg/Kg-dry 133.6 0.091Cobalt 11/14/20070.650 mg/Kg-dry 12.94 0.022Copper 11/14/20070.650 mg/Kg-dry 136.0 0.052Lead 11/16/200765.0 mg/Kg-dry 1001,030 12Manganese 11/16/200765.0 mg/Kg-dry 100303 6.5Nickel 11/14/20070.650 mg/Kg-dry 122.5 0.10Selenium 11/14/20070.650 mg/Kg-dry 13.52 0.25Silver J 11/14/20070.650 mg/Kg-dry 10.470 0.026Thallium J 11/14/20070.650 mg/Kg-dry 10.242 0.065Vanadium 11/14/20070.650 mg/Kg-dry 1114 0.073Zinc 11/16/2007130 mg/Kg-dry 100997 13

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/14/20079.8 µg/Kg-dry 1U 9.8Acenaphthene 11/14/20079.8 µg/Kg-dry 1U 9.8Acenaphthylene 11/14/20079.8 µg/Kg-dry 1U 9.8Anthracene 11/14/20079.8 µg/Kg-dry 1U 9.8Benz(a)anthracene 11/14/20079.8 µg/Kg-dry 1U 9.8Benzo(a)pyrene 11/14/20079.8 µg/Kg-dry 1U 9.8Benzo(b)fluoranthene 11/14/20079.8 µg/Kg-dry 1U 9.8Benzo(g,h,i)perylene 11/14/20079.8 µg/Kg-dry 1U 9.8Benzo(k)fluoranthene 11/14/20079.8 µg/Kg-dry 1U 9.8Chrysene 11/14/20079.8 µg/Kg-dry 1U 9.8Dibenz(a,h)anthracene 11/14/20079.8 µg/Kg-dry 1U 9.8Fluoranthene 11/14/20079.8 µg/Kg-dry 1U 9.8Fluorene 11/14/20079.8 µg/Kg-dry 1U 9.8Indeno(1,2,3-cd)pyrene 11/14/20079.8 µg/Kg-dry 1U 9.8Naphthalene 11/14/20079.8 µg/Kg-dry 1U 9.8Phenanthrene 11/14/20079.8 µg/Kg-dry 1U 9.8Pyrene 11/14/20079.8 µg/Kg-dry 1U 9.8 Surr: 2,4,6-Tribromophenol 11/14/200736-126 %REC 184.9 Surr: 2-Fluorobiphenyl 11/14/200743-125 %REC 164.7

Qualifiers:










Dilution Factor

Lab ID: 0711246-03


MDL



CYANIDE, TOTAL SW9014 Analyst: RPMMethod:Cyanide 11/21/200759.3 mg/Kg-dry 20310 18



Qualifiers:










Dilution Factor

Lab ID: 0711246-04


MDL


ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,390 mg/Kg-dry 100070,400 520Antimony J 11/15/20071.39 mg/Kg-dry 21.24 0.39Arsenic 11/14/20070.696 mg/Kg-dry 125.5 0.18Barium 11/14/20070.696 mg/Kg-dry 1145 0.097Cadmium J 11/14/20070.696 mg/Kg-dry 10.696 0.042Chromium 11/14/20070.696 mg/Kg-dry 143.7 0.097Cobalt 11/14/20070.696 mg/Kg-dry 11.78 0.024Copper 11/14/20070.696 mg/Kg-dry 116.8 0.056Lead 11/16/20076.96 mg/Kg-dry 10451 1.3Manganese 11/16/20076.96 mg/Kg-dry 10289 0.70Nickel 11/14/20070.696 mg/Kg-dry 15.03 0.11Selenium 11/14/20070.696 mg/Kg-dry 13.28 0.26Silver J 11/14/20070.696 mg/Kg-dry 10.384 0.028Thallium J 11/14/20070.696 mg/Kg-dry 10.185 0.070Vanadium 11/14/20070.696 mg/Kg-dry 1149 0.078Zinc 11/14/20071.39 mg/Kg-dry 141.5 0.14

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/14/200710 µg/Kg-dry 1U 10Acenaphthene 11/14/200710 µg/Kg-dry 1U 10Acenaphthylene 11/14/200710 µg/Kg-dry 1U 10Anthracene 11/14/200710 µg/Kg-dry 110 10Benz(a)anthracene 11/14/200710 µg/Kg-dry 144 10Benzo(a)pyrene 11/14/200710 µg/Kg-dry 142 10Benzo(b)fluoranthene 11/14/200710 µg/Kg-dry 140 10Benzo(g,h,i)perylene 11/14/200710 µg/Kg-dry 129 10Benzo(k)fluoranthene 11/14/200710 µg/Kg-dry 138 10Chrysene 11/14/200710 µg/Kg-dry 152 10Dibenz(a,h)anthracene 11/14/200710 µg/Kg-dry 116 10Fluoranthene 11/14/200710 µg/Kg-dry 185 10Fluorene 11/14/200710 µg/Kg-dry 1U 10Indeno(1,2,3-cd)pyrene 11/14/200710 µg/Kg-dry 127 10Naphthalene 11/14/200710 µg/Kg-dry 1U 10Phenanthrene 11/14/200710 µg/Kg-dry 135 10Pyrene 11/14/200710 µg/Kg-dry 178 10 Surr: 2,4,6-Tribromophenol 11/14/200736-126 %REC 189.7 Surr: 2-Fluorobiphenyl 11/14/200743-125 %REC 163.9

Qualifiers:










Dilution Factor

Lab ID: 0711246-04


MDL

Surr: 2-Fluorophenol 11/14/200737-125 %REC 1105 Surr: 4-Terphenyl-d14 11/14/200732-125 %REC 1103 Surr: Nitrobenzene-d5 11/14/200737-125 %REC 162.0 Surr: Phenol-d6 11/14/200740-125 %REC 162.3


CYANIDE, TOTAL SW9014 Analyst: RPMMethod:Cyanide 11/21/20076.07 mg/Kg-dry 241.3 1.8



Qualifiers:







Project: North Alcoa Site-E St. Louis/020738Sample ID: ALCOA-ESTL-3C-UP-001-3005-10Collection Date: 11/9/2007 8:40:00 AM Matrix: SOIL



Dilution Factor

Lab ID: 0711246-05


MDL


ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,410 mg/Kg-dry 100068,600 520Antimony 11/15/20070.707 mg/Kg-dry 11.19 0.20Arsenic 11/14/20070.707 mg/Kg-dry 125.9 0.18Barium 11/14/20070.707 mg/Kg-dry 1151 0.099Cadmium J 11/14/20070.707 mg/Kg-dry 10.496 0.042Chromium 11/14/20070.707 mg/Kg-dry 143.4 0.099Cobalt 11/14/20070.707 mg/Kg-dry 11.75 0.024Copper 11/14/20070.707 mg/Kg-dry 116.0 0.057Lead 11/16/20077.07 mg/Kg-dry 10117 1.3Manganese 11/16/20077.07 mg/Kg-dry 10255 0.71Nickel 11/14/20070.707 mg/Kg-dry 16.86 0.11Selenium 11/14/20070.707 mg/Kg-dry 12.89 0.27Silver J 11/14/20070.707 mg/Kg-dry 10.228 0.028Thallium J 11/14/20070.707 mg/Kg-dry 10.186 0.071Vanadium 11/14/20070.707 mg/Kg-dry 1165 0.079Zinc 11/14/20071.41 mg/Kg-dry 174.8 0.14

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/14/20079.7 µg/Kg-dry 1U 9.7Acenaphthene 11/14/20079.7 µg/Kg-dry 1U 9.7Acenaphthylene 11/14/20079.7 µg/Kg-dry 1U 9.7Anthracene 11/14/20079.7 µg/Kg-dry 1U 9.7Benz(a)anthracene 11/14/20079.7 µg/Kg-dry 1U 9.7Benzo(a)pyrene 11/14/20079.7 µg/Kg-dry 1U 9.7Benzo(b)fluoranthene 11/14/20079.7 µg/Kg-dry 1U 9.7Benzo(g,h,i)perylene 11/14/20079.7 µg/Kg-dry 1U 9.7Benzo(k)fluoranthene 11/14/20079.7 µg/Kg-dry 1U 9.7Chrysene 11/14/20079.7 µg/Kg-dry 19.8 9.7Dibenz(a,h)anthracene 11/14/20079.7 µg/Kg-dry 1U 9.7Fluoranthene 11/14/20079.7 µg/Kg-dry 120 9.7Fluorene 11/14/20079.7 µg/Kg-dry 1U 9.7Indeno(1,2,3-cd)pyrene 11/14/20079.7 µg/Kg-dry 1U 9.7Naphthalene 11/14/20079.7 µg/Kg-dry 1U 9.7Phenanthrene 11/14/20079.7 µg/Kg-dry 110 9.7Pyrene 11/14/20079.7 µg/Kg-dry 117 9.7 Surr: 2,4,6-Tribromophenol 11/14/200736-126 %REC 186.0 Surr: 2-Fluorobiphenyl 11/14/200743-125 %REC 175.1

Qualifiers:










Dilution Factor

Lab ID: 0711246-05


MDL

Surr: 2-Fluorophenol 11/14/200737-125 %REC 1113 Surr: 4-Terphenyl-d14 11/14/200732-125 %REC 198.2 Surr: Nitrobenzene-d5 11/14/200737-125 %REC 168.9 Surr: Phenol-d6 11/14/200740-125 %REC 177.8





Qualifiers:







Project: North Alcoa Site-E St. Louis/020738Sample ID: ALCOA-ESTL-3C-UP-001-398Collection Date: 11/9/2007 8:40:00 AM Matrix: SOIL



Dilution Factor

Lab ID: 0711246-06


MDL


ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,330 mg/Kg-dry 100065,300 490Antimony 11/15/20070.667 mg/Kg-dry 11.04 0.19Arsenic 11/14/20070.667 mg/Kg-dry 122.2 0.17Barium 11/14/20070.667 mg/Kg-dry 1135 0.093Cadmium J 11/14/20070.667 mg/Kg-dry 10.468 0.040Chromium 11/14/20070.667 mg/Kg-dry 142.8 0.093Cobalt 11/14/20070.667 mg/Kg-dry 11.47 0.023Copper 11/14/20070.667 mg/Kg-dry 117.8 0.053Lead 11/16/20076.67 mg/Kg-dry 10146 1.2Manganese 11/16/20076.67 mg/Kg-dry 10246 0.67Nickel 11/14/20070.667 mg/Kg-dry 15.42 0.11Selenium 11/14/20070.667 mg/Kg-dry 12.43 0.25Silver J 11/14/20070.667 mg/Kg-dry 10.253 0.027Thallium J 11/14/20070.667 mg/Kg-dry 10.140 0.067Vanadium 11/14/20070.667 mg/Kg-dry 1146 0.075Zinc 11/14/20071.33 mg/Kg-dry 166.9 0.13

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/14/20079.7 µg/Kg-dry 1U 9.7Acenaphthene 11/14/20079.7 µg/Kg-dry 1U 9.7Acenaphthylene 11/14/20079.7 µg/Kg-dry 1U 9.7Anthracene 11/14/20079.7 µg/Kg-dry 1U 9.7Benz(a)anthracene 11/14/20079.7 µg/Kg-dry 115 9.7Benzo(a)pyrene 11/14/20079.7 µg/Kg-dry 113 9.7Benzo(b)fluoranthene 11/14/20079.7 µg/Kg-dry 112 9.7Benzo(g,h,i)perylene 11/14/20079.7 µg/Kg-dry 1U 9.7Benzo(k)fluoranthene 11/14/20079.7 µg/Kg-dry 111 9.7Chrysene 11/14/20079.7 µg/Kg-dry 116 9.7Dibenz(a,h)anthracene 11/14/20079.7 µg/Kg-dry 1U 9.7Fluoranthene 11/14/20079.7 µg/Kg-dry 133 9.7Fluorene 11/14/20079.7 µg/Kg-dry 1U 9.7Indeno(1,2,3-cd)pyrene 11/14/20079.7 µg/Kg-dry 1U 9.7Naphthalene 11/14/20079.7 µg/Kg-dry 1U 9.7Phenanthrene 11/14/20079.7 µg/Kg-dry 127 9.7Pyrene 11/14/20079.7 µg/Kg-dry 129 9.7 Surr: 2,4,6-Tribromophenol 11/14/200736-126 %REC 191.3 Surr: 2-Fluorobiphenyl 11/14/200743-125 %REC 176.0

Qualifiers:







Project: North Alcoa Site-E St. Louis/020738Sample ID: ALCOA-ESTL-3C-UP-001-398Collection Date: 11/9/2007 8:40:00 AM Matrix: SOIL



Dilution Factor

Lab ID: 0711246-06


MDL


ANIONS BY ION CHROMATOGRAPHY, MODIFIED SW9056 Analyst: IGFPrep: SW9056 / 11/19/07Method:Fluoride 11/19/20071.46 mg/Kg-dry 130.6 0.15 Surr: Dichloroacetic acid (surr) 11/19/20070-0 %REC 10 Surr: Selenate (surr) 11/19/200785-115 %REC 199.9




Qualifiers:










Dilution Factor

Lab ID: 0711246-07


MDL


ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,510 mg/Kg-dry 100090,800 560Antimony 11/15/20070.756 mg/Kg-dry 11.46 0.21Arsenic 11/14/20070.756 mg/Kg-dry 124.1 0.20Barium 11/14/20070.756 mg/Kg-dry 1149 0.11Cadmium 11/14/20070.756 mg/Kg-dry 10.959 0.045Chromium 11/14/20070.756 mg/Kg-dry 135.5 0.11Cobalt 11/14/20070.756 mg/Kg-dry 11.41 0.026Copper 11/14/20070.756 mg/Kg-dry 123.0 0.060Lead 11/16/20077.56 mg/Kg-dry 10712 1.4Manganese 11/16/20077.56 mg/Kg-dry 10282 0.76Nickel 11/14/20070.756 mg/Kg-dry 15.77 0.12Selenium 11/14/20070.756 mg/Kg-dry 13.24 0.29Silver J 11/14/20070.756 mg/Kg-dry 10.453 0.030Thallium J 11/14/20070.756 mg/Kg-dry 10.173 0.076Vanadium 11/14/20070.756 mg/Kg-dry 1135 0.085Zinc 11/16/200715.1 mg/Kg-dry 10173 1.5

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/19/200710 µg/Kg-dry 1U 10Acenaphthene 11/19/200710 µg/Kg-dry 1U 10Acenaphthylene 11/19/200710 µg/Kg-dry 1U 10Anthracene 11/19/200710 µg/Kg-dry 114 10Benz(a)anthracene 11/19/200710 µg/Kg-dry 148 10Benzo(a)pyrene 11/19/200710 µg/Kg-dry 140 10Benzo(b)fluoranthene 11/19/200710 µg/Kg-dry 151 10Benzo(g,h,i)perylene 11/19/200710 µg/Kg-dry 129 10Benzo(k)fluoranthene 11/19/200710 µg/Kg-dry 135 10Chrysene 11/19/200710 µg/Kg-dry 146 10Dibenz(a,h)anthracene 11/19/200710 µg/Kg-dry 114 10Fluoranthene 11/19/200710 µg/Kg-dry 164 10Fluorene 11/19/200710 µg/Kg-dry 1U 10Indeno(1,2,3-cd)pyrene 11/19/200710 µg/Kg-dry 129 10Naphthalene 11/19/200710 µg/Kg-dry 1U 10Phenanthrene 11/19/200710 µg/Kg-dry 164 10Pyrene 11/19/200710 µg/Kg-dry 174 10 Surr: 2,4,6-Tribromophenol 11/19/200736-126 %REC 181.8 Surr: 2-Fluorobiphenyl 11/19/200743-125 %REC 178.8

Qualifiers:










Dilution Factor

Lab ID: 0711246-07


MDL



CYANIDE, TOTAL SW9014 Analyst: RPMMethod:Cyanide 11/21/200730.8 mg/Kg-dry 10183 9.2



Qualifiers:










Dilution Factor

Lab ID: 0711246-08


MDL


ICP METALS SW6020 Analyst: SAPrep: SW3050A / 11/14/07Method:Aluminum 11/16/20071,460 mg/Kg-dry 100090,900 540Antimony 11/15/20070.732 mg/Kg-dry 12.15 0.21Arsenic 11/15/20070.732 mg/Kg-dry 123.5 0.19Barium 11/15/20070.732 mg/Kg-dry 1151 0.10Cadmium J 11/15/20070.732 mg/Kg-dry 10.540 0.044Chromium 11/15/20070.732 mg/Kg-dry 130.4 0.10Cobalt 11/15/20070.732 mg/Kg-dry 11.60 0.025Copper 11/15/20070.732 mg/Kg-dry 124.9 0.059Lead 11/16/200773.2 mg/Kg-dry 100457 13Manganese 11/16/200773.2 mg/Kg-dry 100528 7.3Nickel 11/15/20070.732 mg/Kg-dry 13.26 0.12Selenium 11/15/20070.732 mg/Kg-dry 12.35 0.28Silver J 11/15/20070.732 mg/Kg-dry 10.331 0.029Thallium J 11/15/20070.732 mg/Kg-dry 10.299 0.073Vanadium 11/15/20070.732 mg/Kg-dry 1105 0.082Zinc 11/15/20071.46 mg/Kg-dry 140.3 0.15

LOW-LEVEL TCL SEMIVOLATILE ORGANICS SW8270 Analyst: LGPrep: SW3541 / 11/13/07Method:2-Methylnaphthalene 11/14/20079.9 µg/Kg-dry 1U 9.9Acenaphthene 11/14/20079.9 µg/Kg-dry 1U 9.9Acenaphthylene 11/14/20079.9 µg/Kg-dry 1U 9.9Anthracene 11/14/20079.9 µg/Kg-dry 1U 9.9Benz(a)anthracene 11/14/20079.9 µg/Kg-dry 1U 9.9Benzo(a)pyrene 11/14/20079.9 µg/Kg-dry 1U 9.9Benzo(b)fluoranthene 11/14/20079.9 µg/Kg-dry 1U 9.9Benzo(g,h,i)perylene 11/14/20079.9 µg/Kg-dry 1U 9.9Benzo(k)fluoranthene 11/14/20079.9 µg/Kg-dry 1U 9.9Chrysene 11/14/20079.9 µg/Kg-dry 1U 9.9Dibenz(a,h)anthracene 11/14/20079.9 µg/Kg-dry 1U 9.9Fluoranthene 11/14/20079.9 µg/Kg-dry 114 9.9Fluorene 11/14/20079.9 µg/Kg-dry 1U 9.9Indeno(1,2,3-cd)pyrene 11/14/20079.9 µg/Kg-dry 1U 9.9Naphthalene 11/14/20079.9 µg/Kg-dry 1U 9.9Phenanthrene 11/14/20079.9 µg/Kg-dry 1U 9.9Pyrene 11/14/20079.9 µg/Kg-dry 115 9.9 Surr: 2,4,6-Tribromophenol 11/14/200736-126 %REC 184.5 Surr: 2-Fluorobiphenyl 11/14/200743-125 %REC 167.5

Qualifiers:










Dilution Factor

Lab ID: 0711246-08


MDL






Qualifiers:







Project: North Alcoa Site-E St. Louis/020738Sample ID: ALCOA-ESTL-3C-UP-001-RinsateCollection Date: 11/9/2007 12:30:00 PM Matrix: WATER



Dilution Factor

Lab ID: 0711246-09


MDL

MERCURY, DISSOLVED SW7470 Analyst: JCJPrep: SW7470 / 11/15/07Method:Mercury 11/15/20070.000200 mg/L 1U 0.000042

ICP METALS, DISSOLVED SW6020 Analyst: SAPrep: SW3005A / 11/14/07Method:Aluminum 11/16/20070.0100 mg/L 10.575 0.0016Antimony 11/15/20070.00500 mg/L 1U 0.0010Arsenic J 11/15/20070.00500 mg/L 10.00361 0.0018Barium 11/15/20070.00500 mg/L 1U 0.00060Cadmium 11/15/20070.00500 mg/L 1U 0.00015Chromium 11/15/20070.00200 mg/L 1U 0.00050Cobalt 11/15/20070.00200 mg/L 1U 0.00010Copper 11/15/20070.00200 mg/L 10.00416 0.00030Lead 11/15/20070.00500 mg/L 1U 0.00020Manganese J 11/15/20070.00500 mg/L 10.00368 0.0010Nickel J 11/15/20070.00500 mg/L 10.000519 0.00030Selenium 11/15/20070.00500 mg/L 1U 0.0017Silver 11/15/20070.00500 mg/L 1U 0.00020Thallium 11/15/20070.00200 mg/L 1U 0.00040Vanadium 11/15/20070.00500 mg/L 1U 0.00040Zinc 11/15/20070.00500 mg/L 1U 0.0015

TCL SEMIVOLATILE ORGANICS SW8270 Analyst: ACNPrep: SW3510 / 11/12/07Method:2-Methylnaphthalene 11/13/20075.0 µg/L 1U 0.50Acenaphthene 11/13/20075.0 µg/L 1U 0.50Acenaphthylene 11/13/20075.0 µg/L 1U 1.0Anthracene 11/13/20075.0 µg/L 1U 0.70Benz(a)anthracene 11/13/20075.0 µg/L 1U 0.50Benzo(a)pyrene 11/13/20075.0 µg/L 1U 0.50Benzo(b)fluoranthene 11/13/20075.0 µg/L 1U 0.70Benzo(g,h,i)perylene 11/13/20075.0 µg/L 1U 0.50Benzo(k)fluoranthene 11/13/20075.0 µg/L 1U 0.50Chrysene 11/13/20075.0 µg/L 1U 0.50Dibenz(a,h)anthracene 11/13/20075.0 µg/L 1U 1.0Fluoranthene 11/13/20075.0 µg/L 1U 0.50Fluorene 11/13/20075.0 µg/L 1U 0.50Indeno(1,2,3-cd)pyrene 11/13/20075.0 µg/L 1U 0.50Naphthalene 11/13/20075.0 µg/L 1U 0.50Phenanthrene 11/13/20075.0 µg/L 1U 0.50Pyrene 11/13/20075.0 µg/L 1U 0.50 Surr: 2,4,6-Tribromophenol 11/13/200742-124 %REC 165.4 Surr: 2-Fluorobiphenyl 11/13/200748-120 %REC 167.1

Qualifiers:







Project: North Alcoa Site-E St. Louis/020738Sample ID: ALCOA-ESTL-3C-UP-001-RinsateCollection Date: 11/9/2007 12:30:00 PM Matrix: WATER



Dilution Factor

Lab ID: 0711246-09


MDL


ANIONS BY ION CHROMATOGRAPHY SW9056 Analyst: IGFMethod:Fluoride J 11/27/20070.100 mg/L 10.0270 0.010 Surr: Dichloroacetic acid (surr) 11/27/20070-0 %REC 10 Surr: Selenate (surr) 11/27/200785-115 %REC 1101

CYANIDE, TOTAL SW9014 Analyst: RPMMethod:Cyanide J 11/15/20070.0200 mg/L 10.00400 0.0030

PH SW9040 Analyst: RPMMethod:pH H 11/12/20070.100 pH units 15.59 0.10

Qualifiers:







ALS Laboratory Group

Environmental Division

ANALYTICAL CHEMISTRY & TESTING SERVICES

27-May-08

Tetra TechDiana S Rader

Dear Diana,

Re: Alcoa - SPL IDW Work Order : 0805539

Fax:Tel: (512) 338-1667

7800 Shoal Creek Blvd

Austin, TX 78757Suite 253 East

e-Lab Analytical, Inc. received 3 samples on 5/23/2008 08:40 AM for the analyses presented in the following report.

VP Lab OperationsLora Terrill

Lora TerrillElectronically approved by: Glenda H. Ramos

Certificate No: T104704231-08-TX

The analytical data provided relates directly to the samples received by e-Lab Analytical, Inc. and for only the analyses requested. Results are expressed as "as received" unless otherwise noted. QC sample results for this data met EPA or laboratory specifications except as noted in the Case Narrative or as noted with qualifiers in the QC batch information. Should this laboratory report need to be reproduced, it should be reproduced in full unless written approval has been obtained by e-Lab Analytical, Inc. Samples will be disposed in 30 days unless storage arrangements are made.

The total number of pages in this report is 11.

If you have any questions regarding this report, please feel free to call me.

Sincerely,

10450 Stancliff Rd, Suite 210 Houston, Texas 77099-4338

e.Lab Analytical, Inc.Part of the ALS Laboratory Group

Phone: (281) 530-5656 Fax: (281) 530-5887

www.alsglobal.com www.elabi.comA Campbell Brothers Limited Company

Date: 27-May-08e-Lab Analytical, Inc.

Project: Alcoa - SPL IDWClient: Tetra Tech

Work Order: 0805539Work Order Sample Summary

Lab Samp ID Client Sample ID Collection DateTag Number Date ReceivedMatrix Hold0805539-01 Alcoa SPL IDW - ESTL Soil 5/22/2008 10:45 5/23/2008 08:400805539-02 Alcoa SPL IDW IDW - ESTL

(Water)Water 5/22/2008 10:45 5/23/2008 08:40

0805539-03 Trip Blank Water 5/22/2008 10:45 5/23/2008 08:40

SS Page 1 of 1

Project: Alcoa - SPL IDWSample ID: Alcoa SPL IDW - ESTLCollection Date: 5/22/2008 10:45 AM Matrix: SOIL



DilutionFactor

Lab ID: 0805539-01

e-Lab Analytical, Inc. Date: 27-May-08

TCLP MERCURY SW7470 Analyst: JCJPrep Date: 5/27/2008Mercury 5/27/2008 01:57 PM0.000200 mg/L 1ND

TCLP METALS, ICP SW1311/6020 Analyst: SKSPrep Date: 5/27/2008Arsenic 5/27/2008 12:40 PM0.0500 mg/L 10NDBarium 5/27/2008 12:40 PM0.0500 mg/L 100.122Cadmium 5/27/2008 12:40 PM0.0500 mg/L 10NDChromium 5/27/2008 12:40 PM0.0500 mg/L 10NDLead 5/27/2008 12:40 PM0.0500 mg/L 101.84Selenium 5/27/2008 12:40 PM0.0500 mg/L 10NDSilver 5/27/2008 12:40 PM0.0500 mg/L 10ND

Qualifiers:



S - Spike Recovery outside accepted recovery limitsND - Not Detected at the Reporting Limit



P - Dual Column results percent difference > 40%

Project: Alcoa - SPL IDWSample ID: Alcoa SPL IDW IDW - ESTL (Water)Collection Date: 5/22/2008 10:45 AM Matrix: WATER



DilutionFactor

Lab ID: 0805539-02

e-Lab Analytical, Inc. Date: 27-May-08

TCLP MERCURY SW7470 Analyst: JCJPrep Date: 5/27/2008Mercury 5/27/2008 02:02 PM0.000200 mg/L 1ND

TCLP METALS, ICP SW1311/6020 Analyst: SKSPrep Date: 5/27/2008Arsenic 5/27/2008 02:15 PM0.0500 mg/L 10NDBarium 5/27/2008 02:15 PM0.0500 mg/L 100.205Cadmium 5/27/2008 02:15 PM0.0500 mg/L 10NDChromium 5/27/2008 02:15 PM0.0500 mg/L 10NDLead 5/27/2008 02:15 PM0.0500 mg/L 10NDSelenium 5/27/2008 02:15 PM0.0500 mg/L 10NDSilver 5/27/2008 02:15 PM0.0500 mg/L 10ND

Qualifiers:



S - Spike Recovery outside accepted recovery limitsND - Not Detected at the Reporting Limit



P - Dual Column results percent difference > 40%

27-May-08Date:e-Lab Analytical, Inc.

Project: Alcoa - SPL IDW


QC BATCH REPORT

Batch ID: 29915 Instrument ID Mercury Method: SW7470

QualRPD Limit

Sample ID: GBLKW1-052708 Analysis Date: 5/27/2008 01:19 PM

Prep Date: 5/27/2008

Analyte Result %REC %RPD

Units: mg/L

PQL

Client ID: SeqNo: 1403416

MBLK

Run ID: MERCURY_080527A

SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 1

JMercury 0.000200.000064

QualRPD Limit

Sample ID: GBLKT1-052308 Analysis Date: 5/27/2008 01:51 PM



Units: mg/L

PQL


MBLK


SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 1

JMercury 0.000200.000042

QualRPD Limit

Sample ID: GLCSW1-052708 Analysis Date: 5/27/2008 01:21 PM



Units: mg/L

PQL


LCS


SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 1

000.005Mercury 100 80-1200.000200.005

QualRPD Limit

Sample ID: GLCSDW1-052708 Analysis Date: 5/27/2008 01:23 PM



Units: mg/L

PQL


LCSD


SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 1

0.00500.005Mercury 105 80-120 250.00020 4.50.00523

QualRPD Limit

Sample ID: 0805355-01AMS Analysis Date: 5/27/2008 01:39 PM



Units: mg/L

PQL


MS


SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 1

00.0001190.005Mercury 107 75-1250.000200.00549

QualRPD Limit

Sample ID: 0805355-01AMSD Analysis Date: 5/27/2008 01:41 PM



Units: mg/L

PQL


MSD


SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 1

0.005490.0001190.005Mercury 105 75-125 200.00020 1.840.00539


B - Analyte detected in assoc. Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

U - Analyzed for but not detected

QC Page: 1 of 4O - Referenced analyte value is > 4 times amount spiked P - Dual Column results percent difference > 40% E - Value above quantitation range



QC BATCH REPORT

Batch ID: 29915 Instrument ID Mercury Method: SW7470

QualRPD Limit

Sample ID: 0805355-01ADUP Analysis Date: 5/27/2008 01:37 PM



Units: mg/L

PQL


DUP


SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 1

J0.00011900Mercury 0 0-0 200.00020 00.000073

The following samples were analyzed in this batch: 0805539-01A 0805539-02A









QC BATCH REPORT

Batch ID: 29918 Instrument ID ICP7500 Method: SW1311/6020

QualRPD Limit

Sample ID: MBLKT1-052408 Analysis Date: 5/27/2008 12:22 PM



Units: mg/L

PQL


MBLK

Run ID: ICP7500_080527A

SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 10

Arsenic 0.050NDBarium 0.050NDCadmium 0.050NDChromium 0.050NDLead 0.050NDSelenium 0.050NDSilver 0.050ND

QualRPD Limit

Sample ID: MBLKW1-052708 Analysis Date: 5/27/2008 02:09 PM



Units: mg/L

PQL


MBLK

Run ID: ICP7500_080527A

SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 10

Arsenic 0.050NDBarium 0.050NDCadmium 0.050NDChromium 0.050NDLead 0.050NDSelenium 0.050NDSilver 0.050ND

QualRPD Limit

Sample ID: MLCSW1-052708 Analysis Date: 5/27/2008 12:34 PM



Units: mg/L

PQL


LCS

Run ID: ICP7500_080527A

SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 10

000.2Arsenic 93.6 80-1200.0500.1872000.2Barium 95.8 80-1200.0500.1916000.2Cadmium 98.3 80-1200.0500.1966000.2Chromium 90.1 80-1200.0500.1802000.2Lead 97.3 80-1200.0500.1946000.2Selenium 111 80-1200.0500.2225000.2Silver 82.8 80-1200.0500.1657









QC BATCH REPORT

Batch ID: 29918 Instrument ID ICP7500 Method: SW1311/6020

QualRPD Limit

Sample ID: 0805551-01BMS Analysis Date: 5/27/2008 03:12 PM



Units: mg/L

PQL


MS

Run ID: ICP7500_080527A

SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 10

0-0.0066220.2Arsenic 94.3 75-1250.0500.18200.10730.2Barium 98 75-1250.0500.303200.0014730.2Cadmium 95.3 75-1250.0500.19200.010260.2Chromium 83.6 75-1250.0500.177500.034360.2Lead 94.4 75-1250.0500.22320-0.0056690.2Selenium 88.1 75-1250.0500.17050-0.0009010.2Silver 80.2 75-1250.0500.1595

QualRPD Limit

Sample ID: 0805551-01BMSD Analysis Date: 5/27/2008 03:36 PM



Units: mg/L

PQL


MSD

Run ID: ICP7500_080527A

SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 10

0.182-0.0066220.2Arsenic 98.9 75-125 250.050 4.930.19120.30320.10730.2Barium 96.7 75-125 250.050 0.8280.30070.1920.0014730.2Cadmium 98 75-125 250.050 2.820.1975

0.17750.010260.2Chromium 89.4 75-125 250.050 6.280.1890.22320.034360.2Lead 99.7 75-125 250.050 4.60.23370.1705-0.0056690.2Selenium 104 75-125 250.050 16.90.20190.1595-0.0009010.2Silver 85.4 75-125 250.050 6.260.1698

QualRPD Limit

Sample ID: 0805551-01BDUP Analysis Date: 5/27/2008 03:06 PM



Units: mg/L

PQL


DUP

Run ID: ICP7500_080527A

SPK ValSPK Ref

ValueRPD Ref

ValueControl

Limit

DF: 10

-0.00662200Arsenic 0 0-0 250.050 0ND0.107300Barium 0 0-0 250.050 5.70.1136

0.00147300Cadmium 0 0-0 250.050 0NDJ0.0102600Chromium 0 0-0 250.050 00.01022J0.0343600Lead 0 0-0 250.050 00.03554

-0.00566900Selenium 0 0-0 250.050 0ND-0.00090100Silver 0 0-0 250.050 0ND

The following samples were analyzed in this batch: 0805539-01A 0805539-02A







Date post:	21-Jul-2020
Category:	Documents
Upload:	others
View:	2 times
Download:	0 times

transmittal draft letter w logo - Records Collections · Surr: 2,4,6-Tribromophenol 88.6 36-126...

Documents