TABLE 1WASTE DELISTING VERIFICATION SAMPLING RESULTS (FILTER CAKE SAMPLE DATA)JOHN DEERE DES MOINES WORKS - ANKENY, IOWASample IDSample DateLaboratory IDAnalytes UnitsMin. Max. Min. Max.Metals (Total)Antimony mg/kg 103 NA NA 34.2 57.2 NA NA <36.6 <37.6 NA NA NAArsenic mg/kg 52 NA NA <4.01 <42.6 NA NA <18.3 <18.8 NA NA NABarium mg/kg 965 322 643 367 497 NA NA 407 443 NA NA NABeryllium mg/kg 21 NA NA <1.47 <17.0 NA NA <1.47 <1.50 NA NA NACadmium mg/kg 10 NA NA 1.37 <8.51 NA NA 1.37 B 1.44 B NA NA NAChromium (total) mg/kg 22,500 8,710 15,000 5,150 12,200 NA NA 5,150 5,150 NA NA NAHexavalent Chromium mg/kg 20 <3.33 13.6 <3.71 13.1 NA NA <3.71 <3.78 NA NA NACobalt mg/kg 11 NA NA 4.94 7.02 NA NA 5.60 5.90 NA NA NACopper mg/kg 1439 278 959 268 302 NA NA 281 279 NA NA NALead mg/kg 437 165 291 143 303 NA NA 253 303 NA NA NAMercury mg/kg 1 0.116 0.635 0.0527 0.174 NA NA 0.169 0.174 NA NA NANickel mg/kg 1515 70.2 1010 46.7 63.2 NA NA 55.7 63.2 NA NA NASelenium mg/kg 52 NA NA <3.66 <42.6 NA NA <3.66 <3.76 NA NA NASilver mg/kg 26 NA NA 0.803 5.24 NA NA 0.884 J 0.918 J NA NA NAThallium mg/kg 52 NA NA <3.66 <42.6 NA NA <3.66 <3.76 NA NA NATin mg/kg 68 NA NA 52.1535NA NA132B149B NA NA NAVanadium mg/kg 380 24.8 253 12.8 202 NA NA 12.8 12.9 NA NA NAZinc mg/kg 5,085 346 3,390 445 981 NA NA 895 B 981 B NA NA NAMetals TCLP (Method 1311)Arsenic mg/L 5.0 NA NA <0.0500 <0.0500 NA NA <0.0500 <0.0500 NA NA NABarium mg/L 100.0 0.0 <0.500 <0.500 <0.500 NA NA <0.500 <0.500 NA NA NACadmium mg/L 1.0 NA NA <0.00500 <0.00500 NA NA <0.00500 ^ <0.00500 ^ NA NA NAChromium mg/L 5.0 0.0120 0.8 <0.0250 <0.0250 NA NA <0.0250 <0.0250 NA NA NALead mg/L 5.0 <0.0500 <0.0500 <0.0500 <0.0500 NA NA <0.0500 <0.0500 NA NA NAMercury mg/L 0.2 0.0000559 <0.00020 <0.00020 <0.00020 NA NA <0.00020 <0.00020 NA NA NANickel mg/L 32.4 0.0461 0.744 0.0269 0.0655 NA NA 0.0358 0.0334 NA NA NAGeneral ChemistryIgnitabilityDegrees F140 >176>176>176 >176NANA>176>176NANANACyanide (Total)mg/kg3 0.613 <2.041.49 <2.21NANA1.49 J,B1.55 J,BNANANASulfidemg/kg--166817398636NANA636595NANANASulfide, Reactivemg/kg-- <47.0 <49.3 <48.6 <50.0NANA<49.7<48.6NANANApHSU >2 and <12.5 9.029.878.278.37NANA8.278.27NANANAOil & Greasemg/kg 32,250 6,920 21,500 4,150 21,400NANA10,70021,400NANANATotal Solids%--2726Volatile Organic CompoundsAcetone mg/kg 8 2.390 9.13 4.42 6.890 4.42 5.71 NA NA NA NA NAMethyl ethyl ketone mg/kg 0.3 0.0118 0.191 <2.250 0.2380.3140.238 NA NA NA NA NAMetal (Method 1313)Hexavalent Chromium mg/L 0.087 NA NA 0.002340.288NA NA NA NA <0.0100 0.00234 J <0.0100pH (Method 1313 Target) SU -- NA NA 7 2.88 NA NA NA NA 2.88 7 13Dataset Before FinalExclusion (Initial Event 2011and 6 Events in 2012)EPA DelistingLevelsaDataset After Final Exclusion(Verification Events2014/2015)VS Event 1Composite 112/17/2014500-89685-3VS Event 1Composite 1D12/17/2014500-89685-4VS Event 1Composite 112/17/2014500-89685-17VS Event 1Discrete 112/17/2014500-89685-1VS Event 1Discrete 1D12/17/2014500-89685-19VS Event 1Composite 112/17/2014500-89685-2VS Event 1Composite 112/17/2014500-89685-3Page 1 of 3TABLE 1WASTE DELISTING VERIFICATION SAMPLING RESULTS (FILTER CAKE SAMPLE DATA)JOHN DEERE DES MOINES WORKS - ANKENY, IOWASample IDSample DateLaboratory IDAnalytes UnitsMin. Max. Min. Max.Metals (Total)Antimony mg/kg 103 NA NA 34.2 57.2Arsenic mg/kg 52 NA NA <4.01 <42.6Barium mg/kg 965 322 643 367 497Beryllium mg/kg 21 NA NA <1.47 <17.0Cadmium mg/kg 10 NA NA 1.37 <8.51Chromium (total) mg/kg 22,500 8,710 15,000 5,150 12,200Hexavalent Chromium mg/kg 20 <3.33 13.6 <3.71 13.1Cobalt mg/kg 11 NA NA 4.94 7.02Copper mg/kg 1439 278 959 268 302Lead mg/kg 437 165 291 143 303Mercury mg/kg 1 0.116 0.635 0.0527 0.174Nickel mg/kg 1515 70.2 1010 46.7 63.2Selenium mg/kg 52 NA NA <3.66 <42.6Silver mg/kg 26 NA NA 0.803 5.24Thallium mg/kg 52 NA NA <3.66 <42.6Tin mg/kg 68 NA NA 52.1535Vanadium mg/kg 380 24.8 253 12.8 202Zinc mg/kg 5,085 346 3,390 445 981Metals TCLP (Method 1311)Arsenic mg/L 5.0 NA NA <0.0500 <0.0500Barium mg/L 100.0 0.0 <0.500 <0.500 <0.500Cadmium mg/L 1.0 NA NA <0.00500 <0.00500Chromium mg/L 5.0 0.0120 0.8 <0.0250 <0.0250Lead mg/L 5.0 <0.0500 <0.0500 <0.0500 <0.0500Mercury mg/L 0.2 0.0000559 <0.00020 <0.00020 <0.00020Nickel mg/L 32.4 0.0461 0.744 0.0269 0.0655General ChemistryIgnitabilityDegrees F140 >176>176>176 >176Cyanide (Total)mg/kg3 0.613 <2.041.49 <2.21Sulfidemg/kg--166817398636Sulfide, Reactivemg/kg-- <47.0 <49.3 <48.6 <50.0pHSU >2 and <12.5 9.029.878.278.37Oil & Greasemg/kg 32,250 6,920 21,500 4,150 21,400Total Solids%--Volatile Organic CompoundsAcetone mg/kg 8 2.390 9.13 4.42 6.890Methyl ethyl ketone mg/kg 0.3 0.0118 0.191 <2.250 0.238Metal (Method 1313)Hexavalent Chromium mg/L 0.087 NA NA 0.002340.288pH (Method 1313 Target) SU -- NA NA 7 2.88Dataset Before FinalExclusion (Initial Event 2011and 6 Events in 2012)EPA DelistingLevelsaDataset After Final Exclusion(Verification Events2014/2015)NA57.2 JNANANANA<42.6NANANANA497NANANANA<17.0NANANANA<8.51NANANANA12,200NANANANA13.1NANANANA7.02 JNANANANA302 BNANANANA143NANANANA0.0979NANANANA46.7NANANANA<42.6NANANANA5.24 JNANANANA<42.6NANANANA535B NA NA NANA202NANANANA955 BNANANANA<0.0500NANANANA<0.500NANANANA<0.00500NANANANA<0.0250NANANANA<0.0500NANANANA<0.000200NANANANA0.0269NANANANA>176NANANANA<2.21NANANANA398NANANANA<50.0NANANANA8.37NANANANA4,150NANANA20.022.46.890NANANANA<2.250NANANANANANA0.1570.00412 J0.0917NANA2.88713VS Event 2 Composite 12/2/2015500-91647-2VS Event 2 Discrete 12/2/2015500-91647-1500-91647-9500-91647-10500-91647-11VS Event 2 Composite 12/2/2015VS Event 2 Composite 12/2/2015VS Event 2 Composite 12/2/2015Page 2 of 3TABLE 1WASTE DELISTING VERIFICATION SAMPLING RESULTS (FILTER CAKE SAMPLE DATA)JOHN DEERE DES MOINES WORKS - ANKENY, IOWASample IDSample DateLaboratory IDAnalytes UnitsMin. Max. Min. Max.Metals (Total)Antimony mg/kg 103 NA NA 34.2 57.2Arsenic mg/kg 52 NA NA <4.01 <42.6Barium mg/kg 965 322 643 367 497Beryllium mg/kg 21 NA NA <1.47 <17.0Cadmium mg/kg 10 NA NA 1.37 <8.51Chromium (total) mg/kg 22,500 8,710 15,000 5,150 12,200Hexavalent Chromium mg/kg 20 <3.33 13.6 <3.71 13.1Cobalt mg/kg 11 NA NA 4.94 7.02Copper mg/kg 1439 278 959 268 302Lead mg/kg 437 165 291 143 303Mercury mg/kg 1 0.116 0.635 0.0527 0.174Nickel mg/kg 1515 70.2 1010 46.7 63.2Selenium mg/kg 52 NA NA <3.66 <42.6Silver mg/kg 26 NA NA 0.803 5.24Thallium mg/kg 52 NA NA <3.66 <42.6Tin mg/kg 68 NA NA 52.1535Vanadium mg/kg 380 24.8 253 12.8 202Zinc mg/kg 5,085 346 3,390 445 981Metals TCLP (Method 1311)Arsenic mg/L 5.0 NA NA <0.0500 <0.0500Barium mg/L 100.0 0.0 <0.500 <0.500 <0.500Cadmium mg/L 1.0 NA NA <0.00500 <0.00500Chromium mg/L 5.0 0.0120 0.8 <0.0250 <0.0250Lead mg/L 5.0 <0.0500 <0.0500 <0.0500 <0.0500Mercury mg/L 0.2 0.0000559 <0.00020 <0.00020 <0.00020Nickel mg/L 32.4 0.0461 0.744 0.0269 0.0655General ChemistryIgnitabilityDegrees F140 >176>176>176 >176Cyanide (Total)mg/kg3 0.613 <2.041.49 <2.21Sulfidemg/kg--166817398636Sulfide, Reactivemg/kg-- <47.0 <49.3 <48.6 <50.0pHSU >2 and <12.5 9.029.878.278.37Oil & Greasemg/kg 32,250 6,920 21,500 4,150 21,400Total Solids%--Volatile Organic CompoundsAcetone mg/kg 8 2.390 9.13 4.42 6.890Methyl ethyl ketone mg/kg 0.3 0.0118 0.191 <2.250 0.238Metal (Method 1313)Hexavalent Chromium mg/L 0.087 NA NA 0.002340.288pH (Method 1313 Target) SU -- NA NA 7 2.88Dataset Before FinalExclusion (Initial Event 2011and 6 Events in 2012)EPA DelistingLevelsaDataset After Final Exclusion(Verification Events2014/2015)NA34.2NANANANA<4.01NANANANA367NANANANA<1.61NANANANA1.97NANANANA9,630NANANANA8.13NANANANA4.94NANANANA268NANANANA149NANANANA0.0527 JNANANANA58.9NANANANA<4.01NANANANA0.803 JNANANANA<4.01NANANANA52.1NANANANA160NANANANA445NANANANA<0.0500NANANANA<0.500NANANANA<0.00500NANANANA<0.0250NANANANA<0.0500NANANANA<0.00020NANANANA0.0655NANANANA>176NANANANA0.956 JNANANANA122NANANANA<49.7NANANANA8.59NANANANA5,110NANANA24<1.870NANANANA<1.870NANANANANANA0.0246<0.01000.288NANA2.88713Notes:1) Sample "VS Event 1 Discrete 1D" is a duplicate of sample "VS Event 1 Discrete 1" and sample VS Event 1 Composite 1D" is a duplicate ofsample "VS Event 1 Composite 1."2) Sample results in bold text are greater than the applicable Delisting Level.aDelisting levels are referenced from EPA-R07-RCRA-1014-0452; FRK09919-72-Region-7 Hazardous Waste Management System; Identification andListing of Hazardous Waste; Final Exclusion; Table 1 Paragraph 1. (A), (B), (D).-- = Not established.EPA = United States Environmental Protection Agency.VS = Verification Sample.mg/kg = Milligram per kilogram.TCLP = Toxicity Characteristic Leaching Procedure.mg/L = Milligram per liter. < = Less than.Max. - Maximum. > = Greater than.Min. = Minimum.NA = Analysis not required.J = Result is less than the Reporting Limit (RL) but greater than or equal to the Method Detection Limit (MDL)and the concentration is an approximate value.VS Event 3 Composite 14/6/2015500-94259-8VS Event 3 Composite 14/6/2015500-94259-6VS Event 3 Composite 14/6/2015500-94259-7VS Event 3 Discrete 14/6/2015500-94259-1VS Event 3 Composite 14/6/2015500-94259-2Page 3 of 3TABLE 2WASTE DELISTING VERIFICATION SAMPLING RESULTS (SW846 METHOD 1330 SAMPLE DATA)JOHN DEERE DES MOINES WORKS - ANKENY, IOWASample IDVS Event 1Composite1DVS Event 1Composite1DVS Event 1Composite1DVS Event 2Composite1VS Event 3Composite1Sample Date 12/17/201412/17/201412/17/20142/2/20154/6/2015Laboratory ID 1L41353-021L41353-031L41353-04Comparison: ****EPADelistingTHFExtractTolueneExtractTCLP Extract MMCExtract withMaximumConcentrationAnalytes UnitsLevelsaMin.Max. Min. Max,Metals TCLP(Method 1330)Arsenicmg/L 5.0 *NA* <0.050<0.050 <0.050 <0.050 <0.050 No Difference ****Barium mg/L 100.0 *0.037 *0.062<0.010 <0.010 0.114 0.062 TCLP****Cadmium mg/L 1.0 *NA* <0.005<0.005 <0.005 <0.005 <0.005 No Difference ****Chromium mg/L 5.0 *0.039 *0.0270.047 <0.020 <0.020 0.027 THF****Coppermg/L --*0.423 *NANANANANA****Mercurymg/L 0.2 *<0.0005* 0.0005<0.00050.0008 <0.00050.0005No Difference ****Nickel mg/L 32.4 *0.239 *0.2670.803 0.045 0.079 0.267 THF****Lead mg/L 5.0 *0.028 * <0.020<0.020 <0.020 <0.020 <0.020 No Difference ****Vanadium mg/L --*<0.078 *NANANANANA****Zincmg/L --*0.026 *NANANANANA****Extract Volume ml303253563 1,119Notes:MMC = Mobile metal concentration.THF = Tetrahydrofuran.TCLP = ToxicityCharacteristic LeachingProcedure.mg/L = Milligram per liter.VS = Verification Sample.ml = Milliliter.EPA = United States Environmental Protection AgencyMax. = Maximum.NA = Analysis not required.Min. = Minimum.-- = Analyte not required in Final Exclusion.VS Event 1Composite1DMMC Dataset Before FinalExclusion (Initial Event 2011and 6 Events in 2012)MMC Dataset After FinalExclusion (VerificationEvents 2014/2015)** Filter cake sample Oil and Grease result < 1%. SW846 Method 1330 analysis not required.* One sample in dataset.aDelisting levels are referenced from EPA-R07-RCRA-1014-0452; FRK09919-72-Region-7 Hazardous Waste Management System; Identification and Listing ofHazardous Waste; Final Exclusion; Table 1 Paragraph 1. (B).Page1of1TABLE 3WASTE DELISTING VERIFICATION SAMPLING (EQUIPMENT BLANK AND TRIP BLANK DATA)JOHN DEERE DES MOINES WORKS - ANKENY, IOWASample IDVS Event 1 Trip Blank VS Event 2 Trip BlankSample Date 12/17/2014 2/2/2015Laboratory ID 500-89685-6 500-91647-4Analytes UnitsMetals (Total)Antimony mg/L <0.0200 NA <0.0200 NA <0.0200 NAArsenic mg/L <0.0100 NA <0.0100 NA <0.0100 NABarium mg/L <0.0100 NA <0.0100 NA <0.0100 NABeryllium mg/L <0.00400 NA <0.00400 NA <0.00400 NACadmium mg/L <0.00200 NA <0.00200 NA <0.00200 NAChromium (total) mg/L <0.0100 NA <0.0100 NA <0.0100 NAHexavalent Chromium mg/L <0.0100 NA <0.0100 NA 0.00400 J NACobalt mg/L <0.00500 NA <0.00500 NA <0.00500 NACopper mg/L <0.0100 NA <0.0100 NA <0.0100 NALead mg/L <0.00500 NA <0.00500 NA <0.00500 NAMercury mg/L <0.000200 NA <0.000200 NA <0.000200 NANickel mg/L <0.0100 NA <0.0100 NA <0.0100 NASelenium mg/L <0.0100 NA <0.0100 NA <0.0100 NASilver mg/L <0.00500 NA <0.00500 NA <0.00500 NAThallium mg/L <0.0100 NA <0.0100 NA <0.0100 NATin mg/L <0.0400 NA <0.0400 NA <0.0400 NAVanadium mg/L <0.00500 NA <0.00500 NA <0.00500 NAZinc mg/L 0.00542 J,B, ^ NA <0.0200 ^ NA <0.0200 NAGeneral ChemistryCyanide (Total) mg/L <0.0100 NA <0.0100 NA 0.00220 J NASulfide mg/L <1.00 NA <1.00 NA <1.00 NASulfide, Reactive mg/L <1.00 NA <1.00 NA <1.00 NApH SU 7.56 NA 4.7 NA 6.03 NAOil & Grease mg/L <5.03 NA 1.33 J,B NA <5.05 NAVolatile Organic CompoundsAcetone mg/L <0.005 <0.005 <0.005 <0.005 <0.005 <0.005Methyl ethyl ketone mg/L <0.005 <0.005 <0.005 <0.005 <0.005 <0.005Notes:mg/L = Milligram per liter.NA = Analysis not required.SU = Standard unit.VS = Verification Sample.< = Less than.B = Compound was found in the blank and sample.J = Result is less than the Reporting Limit (RL) but greater than or equal to the Method Detection Limit (MDL) and the concentration is an approximate value.^ = Instrument related quality control (QC) exceeds the control limits. Data is reported by the laboratory, as explained in the analytical report case narrative.VS Event 3 EB 14/6/2015500-94259-3VS Event 3 Trip Blank4/6/2015500-94259-4VS Event 2 EB 12/2/2015500-91647-3VS Event 1 EB 112/17/2014500-89685-5Page 1 of 1

### Photographic Log

Client: John Deere Des Moines Works Project: Filter Cake Waste Delisting Verification Sampling Event No. 3 Site Name: JDDMW - Ankeny, IA Site Location: Building No. 16 Photograph ID: 1 Photo Location: John Deere Des Moines Works - Building No. 16 Direction: View North Survey Date: 4/6/2015 Comments: Sampling equipment for Event 3 of Waste Delisting Verification sampling per EPA Final Exclusion Rule.

Photograph ID: 2 Photo Location: John Deere Des Moines Works - Building No. 16 Direction: View South Survey Date: 4/6/2015 Comments: Filter cake in collection box. Material in box is drop #2 of current box.

# ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Chicago 2417 Bond Street University Park, IL 60484 Tel: (708)534-5200 TestAmerica Job ID: 500-94259-1 Client Project/Site: John Deere Des Moines Works Delisting For: MWH Americas Inc 11153 Aurora Avenue Des Moines, Iowa 50322-7904

Attn: Mr. Robert Malcomson

Authorized for release by: 4/23/2015 3:14:44 PM Therese Hargraves, Project Manager I (708)534-5200 therese.hargraves@testamericainc.com

The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 

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# Table of Contents Client: MWH Americas Inc Project/Site: John Deere Des Moines Works Delisting TestAmerica Job ID: 500-94259-1

Page 2 of 34 TestAmerica Chicago 4/23/2015 

## Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 

## Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 

## Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 

## Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 

## Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 

## Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 

## Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 

## Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 

## QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 

## Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 

## QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 

## Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 

## Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 

## Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 

## Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 

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# ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Chicago 2417 Bond Street University Park, IL 60484 Tel: (708)534-5200 TestAmerica Job ID: 500-94259-2 Client Project/Site: John Deere Des Moines Works Delisting For: MWH Americas Inc 11153 Aurora Avenue Des Moines, Iowa 50322-7904

Attn: Mr. Robert Malcomson

Authorized for release by: 4/8/2015 11:26:35 AM Therese Hargraves, Project Manager I (708)534-5200 therese.hargraves@testamericainc.com

The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 

## 1 2 3 4 5 6 7 8 9 10 11 12 13 14

# Table of Contents Client: MWH Americas Inc Project/Site: John Deere Des Moines Works Delisting TestAmerica Job ID: 500-94259-2

Page 2 of 15 TestAmerica Chicago 4/8/2015 

## Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 

## Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 

## Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 

## Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 

## Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 

## Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 

## Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 

## Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

## QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 

## QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 

## Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 

## Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 

## Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 

## Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 

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# ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Chicago 2417 Bond Street University Park, IL 60484 Tel: (708)534-5200 TestAmerica Job ID: 500-94259-3 Client Project/Site: John Deere Des Moines Works Delisting For: MWH Americas Inc 11153 Aurora Avenue Des Moines, Iowa 50322-7904

Attn: Mr. Robert Malcomson

Authorized for release by: 4/23/2015 2:27:25 PM Therese Hargraves, Project Manager I (708)534-5200 therese.hargraves@testamericainc.com

The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 

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# Table of Contents Client: MWH Americas Inc Project/Site: John Deere Des Moines Works Delisting TestAmerica Job ID: 500-94259-3

Page 2 of 28 TestAmerica Chicago 4/23/2015 

## Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 

## Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 

## Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 

## Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 

## Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 

## Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 

## Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 

## Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 

## QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 

## QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 

## Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 

## Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 

## Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 

## Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 

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