TABLE 1 WASTE DELISTING VERIFICATION SAMPLING RESULTS (FILTER CAKE SAMPLE DATA) JOHN DEERE DES MOINES WORKS - ANKENY, IOWA

Page 1 of 4 Sample ID Sample Date Laboratory ID

Analytes Units

Min. Max. Min. Max.

Metals (Total)

Antimony mg/kg 103 NA NA 34.2 57.2 NA NA <36.6 <37.6 NA NA NA Arsenic mg/kg 52 NA NA <3.69 <42.6 NA NA <18.3 <18.8 NA NA NA Barium mg/kg 965 322 643 283 497 NA NA 407 443 NA NA NA Beryllium mg/kg 21 NA NA <1.47 <17.0 NA NA <1.47 <1.50 NA NA NA Cadmium mg/kg 10 NA NA 1.37 <8.51 NA NA 1.37B 1.44B NA NA NA Chromium (total) mg/kg 22,500 8,710 15,000 5,150 17,000 NA NA 5,150 5,150 NA NA NA Hexavalent Chromium mg/kg 20 <3.33 13.6 2.30 J 13.1 NA NA <3.71 <3.78 NA NA NA Cobalt mg/kg 11 NA NA 4.94 7.02 NA NA 5.60 5.90 NA NA NA Copper mg/kg 1439 278 959 268 328 NA NA 281 279 NA NA NA Lead mg/kg 437 165 291 113 303 NA NA 253 303 NA NA NA Mercury mg/kg 1 0.116 0.635 0.0421 J 0.174 NA NA 0.169 0.174 NA NA NA Nickel mg/kg 1515 70.2 1010 46.7 63.2 NA NA 55.7 63.2 NA NA NA Selenium mg/kg 52 NA NA <3.66 <42.6 NA NA <3.66 <3.76 NA NA NA Silver mg/kg 26 NA NA 0.803 5.24 NA NA 0.884J 0.918J NA NA NA Thallium mg/kg 52 NA NA <3.66 <42.6 NA NA <3.66 <3.76 NA NA NA Tin mg/kg 68 NA NA 52.1 535 NA NA 132B 149B NA NA NA Vanadium mg/kg 380 24.8 253 12.8 202 NA NA 12.8 12.9 NA NA NA Zinc mg/kg 5,085 346 3,390 273 981 NA NA 895B 981B NA NA NA Metals TCLP (Method 1311)

Arsenic mg/L 5.0 NA NA <0.0500 <0.0500 NA NA <0.0500 <0.0500 NA NA NA Barium mg/L 100.0 0.0 <0.500 <0.500 <0.500 NA NA <0.500 <0.500 NA NA NA Cadmium mg/L 1.0 NA NA <0.00500 <0.00500 NA NA <0.00500^ <0.00500^ NA NA NA Chromium mg/L 5.0 0.0120 0.8 <0.0250 <0.0250 NA NA <0.0250 <0.0250 NA NA NA Lead mg/L 5.0 <0.0500 <0.0500 <0.0500 <0.0500 NA NA <0.0500 <0.0500 NA NA NA Mercury mg/L 0.2 0.0000559 <0.00020 <0.00020 <0.00020 NA NA <0.00020 <0.00020 NA NA NA Nickel mg/L 32.4 0.0461 0.744 0.0269 0.0703 NA NA 0.0358 0.0334 NA NA NA General Chemistry

Ignitability Degrees F 140 >176 >176 >176 >176 NA NA >176 >176 NA NA NA Cyanide (Total) mg/kg 3 0.613 <2.04 1.49 <2.21 NA NA 1.49J,B 1.55J,B NA NA NA Sulfide mg/kg

-- 166 817 369 636 NA NA 636 595 NA NA NA Sulfide, Reactive mg/kg

-- <47.0 <49.3 <48.6 <50.0 NA NA <49.7 <48.6 NA NA NA pH SU >2 and <12.5 9.02 9.87 8.27 8.41 NA NA 8.27 8.27 NA NA NA Oil & Grease mg/kg 32,250 6,920 21,500 4,150 21,400 NA NA 10,700 21,400 NA NA NA Total Solids %

-- 27 26 Volatile Organic Compounds

Acetone mg/kg 8 2.390 9.13 4.42 6.890 4.42 5.71 NA NA NA NA NA Methyl ethyl ketone mg/kg 0.3 0.0118 0.191 <1.870 0.314 0.314 0.238 NA NA NA NA NA Metal (Method 1313)

Hexavalent Chromium mg/L 0.087 NA NA 0.00234 0.288 NA NA NA NA <0.0100 0.00234J <0.0100 pH (Method 1313 Target) SU

-- NA NA 7 2.88 NA NA NA NA 2.88 7 13 12/17/2014 500-89685-2 VS Event 1 Composite 1

12/17/2014 500-89685-3 12/17/2014 500-89685-19 VS Event 1 Composite 1

Dataset Before Final Exclusion (Initial Event 2011 and 6 Events in 2012) EPA Delisting Levelsa Dataset After Final Exclusion (Verification Events 2014/2015) VS Event 1 Composite 1 12/17/2014 500-89685-3 VS Event 1 Composite 1D

12/17/2014 500-89685-4 VS Event 1 Composite 1

12/17/2014 500-89685-17 VS Event 1 Discrete 1 12/17/2014 500-89685-1 VS Event 1 Discrete 1DTABLE 1 WASTE DELISTING VERIFICATION SAMPLING RESULTS (FILTER CAKE SAMPLE DATA) JOHN DEERE DES MOINES WORKS - ANKENY, IOWA

Page 2 of 4 Sample ID Sample Date Laboratory ID

Analytes Units

Min. Max. Min. Max.

Metals (Total)

Antimony mg/kg 103 NA NA 34.2 57.2 Arsenic mg/kg 52 NA NA <3.69 <42.6 Barium mg/kg 965 322 643 283 497 Beryllium mg/kg 21 NA NA <1.47 <17.0 Cadmium mg/kg 10 NA NA 1.37 <8.51 Chromium (total) mg/kg 22,500 8,710 15,000 5,150 17,000 Hexavalent Chromium mg/kg 20 <3.33 13.6 2.30 J 13.1 Cobalt mg/kg 11 NA NA 4.94 7.02 Copper mg/kg 1439 278 959 268 328 Lead mg/kg 437 165 291 113 303 Mercury mg/kg 1 0.116 0.635 0.0421 J 0.174 Nickel mg/kg 1515 70.2 1010 46.7 63.2 Selenium mg/kg 52 NA NA <3.66 <42.6 Silver mg/kg 26 NA NA 0.803 5.24 Thallium mg/kg 52 NA NA <3.66 <42.6 Tin mg/kg 68 NA NA 52.1 535 Vanadium mg/kg 380 24.8 253 12.8 202 Zinc mg/kg 5,085 346 3,390 273 981 Metals TCLP (Method 1311)

Arsenic mg/L 5.0 NA NA <0.0500 <0.0500 Barium mg/L 100.0 0.0 <0.500 <0.500 <0.500 Cadmium mg/L 1.0 NA NA <0.00500 <0.00500 Chromium mg/L 5.0 0.0120 0.8 <0.0250 <0.0250 Lead mg/L 5.0 <0.0500 <0.0500 <0.0500 <0.0500 Mercury mg/L 0.2 0.0000559 <0.00020 <0.00020 <0.00020 Nickel mg/L 32.4 0.0461 0.744 0.0269 0.0703 General Chemistry

Ignitability Degrees F 140 >176 >176 >176 >176 Cyanide (Total) mg/kg 3 0.613 <2.04 1.49 <2.21 Sulfide mg/kg

-- 166 817 369 636 Sulfide, Reactive mg/kg

-- <47.0 <49.3 <48.6 <50.0 pH SU >2 and <12.5 9.02 9.87 8.27 8.41 Oil & Grease mg/kg 32,250 6,920 21,500 4,150 21,400 Total Solids %

-- Volatile Organic Compounds

Acetone mg/kg 8 2.390 9.13 4.42 6.890 Methyl ethyl ketone mg/kg 0.3 0.0118 0.191 <1.870 0.314 Metal (Method 1313)

Hexavalent Chromium mg/L 0.087 NA NA 0.00234 0.288 pH (Method 1313 Target) SU

-- NA NA 7 2.88 Dataset Before Final Exclusion (Initial Event 2011 and 6 Events in 2012) EPA Delisting Levelsa Dataset After Final Exclusion (Verification Events 2014/2015)

NA 57.2J NA NA NA NA <42.6 NA NA NA NA 497 NA NA NA NA <17.0 NA NA NA NA <8.51 NA NA NA NA 12,200 NA NA NA NA 13.1 NA NA NA NA 7.02J NA NA NA NA 302B NA NA NA NA 143 NA NA NA NA 0.0979 NA NA NA NA 46.7 NA NA NA NA <42.6 NA NA NA NA 5.24J NA NA NA NA <42.6 NA NA NA NA 535B NA NA NA NA 202 NA NA NA NA 955B NA NA NA

NA <0.0500 NA NA NA NA <0.500 NA NA NA NA <0.00500 NA NA NA NA <0.0250 NA NA NA NA <0.0500 NA NA NA NA <0.000200 NA NA NA NA 0.0269 NA NA NA

NA >176 NA NA NA NA <2.21 NA NA NA NA 398 NA NA NA NA <50.0 NA NA NA NA 8.37 NA NA NA NA 4,150 NA NA NA 20.0 22.4

6.890 NA NA NA NA <2.250 NA NA NA NA

NA NA 0.157 0.00412J 0.0917 NA NA 2.88 7 13 500-91647-9 500-91647-10 500-91647-11 VS Event 2 Composite 1 2/2/2015 VS Event 2 Composite 1 2/2/2015 VS Event 2 Composite 1 2/2/2015 VS Event 2 Composite 1 2/2/2015 500-91647-2 VS Event 2 Discrete 1 2/2/2015 500-91647-1TABLE 1 WASTE DELISTING VERIFICATION SAMPLING RESULTS (FILTER CAKE SAMPLE DATA) JOHN DEERE DES MOINES WORKS - ANKENY, IOWA

Page 3 of 4 Sample ID Sample Date Laboratory ID

Analytes Units

Min. Max. Min. Max.

Metals (Total)

Antimony mg/kg 103 NA NA 34.2 57.2 Arsenic mg/kg 52 NA NA <3.69 <42.6 Barium mg/kg 965 322 643 283 497 Beryllium mg/kg 21 NA NA <1.47 <17.0 Cadmium mg/kg 10 NA NA 1.37 <8.51 Chromium (total) mg/kg 22,500 8,710 15,000 5,150 17,000 Hexavalent Chromium mg/kg 20 <3.33 13.6 2.30 J 13.1 Cobalt mg/kg 11 NA NA 4.94 7.02 Copper mg/kg 1439 278 959 268 328 Lead mg/kg 437 165 291 113 303 Mercury mg/kg 1 0.116 0.635 0.0421 J 0.174 Nickel mg/kg 1515 70.2 1010 46.7 63.2 Selenium mg/kg 52 NA NA <3.66 <42.6 Silver mg/kg 26 NA NA 0.803 5.24 Thallium mg/kg 52 NA NA <3.66 <42.6 Tin mg/kg 68 NA NA 52.1 535 Vanadium mg/kg 380 24.8 253 12.8 202 Zinc mg/kg 5,085 346 3,390 273 981 Metals TCLP (Method 1311)

Arsenic mg/L 5.0 NA NA <0.0500 <0.0500 Barium mg/L 100.0 0.0 <0.500 <0.500 <0.500 Cadmium mg/L 1.0 NA NA <0.00500 <0.00500 Chromium mg/L 5.0 0.0120 0.8 <0.0250 <0.0250 Lead mg/L 5.0 <0.0500 <0.0500 <0.0500 <0.0500 Mercury mg/L 0.2 0.0000559 <0.00020 <0.00020 <0.00020 Nickel mg/L 32.4 0.0461 0.744 0.0269 0.0703 General Chemistry

Ignitability Degrees F 140 >176 >176 >176 >176 Cyanide (Total) mg/kg 3 0.613 <2.04 1.49 <2.21 Sulfide mg/kg

-- 166 817 369 636 Sulfide, Reactive mg/kg

-- <47.0 <49.3 <48.6 <50.0 pH SU >2 and <12.5 9.02 9.87 8.27 8.41 Oil & Grease mg/kg 32,250 6,920 21,500 4,150 21,400 Total Solids %

-- Volatile Organic Compounds

Acetone mg/kg 8 2.390 9.13 4.42 6.890 Methyl ethyl ketone mg/kg 0.3 0.0118 0.191 <1.870 0.314 Metal (Method 1313)

Hexavalent Chromium mg/L 0.087 NA NA 0.00234 0.288 pH (Method 1313 Target) SU

-- NA NA 7 2.88 Dataset Before Final Exclusion (Initial Event 2011 and 6 Events in 2012) EPA Delisting Levelsa Dataset After Final Exclusion (Verification Events 2014/2015)

NA 34.2 NA NA NA NA <4.01 NA NA NA NA 367 NA NA NA NA <1.61 NA NA NA NA 1.97 NA NA NA NA 9,630 NA NA NA NA 8.13 NA NA NA NA 4.94 NA NA NA NA 268 NA NA NA NA 149 NA NA NA NA 0.0527J NA NA NA NA 58.9 NA NA NA NA <4.01 NA NA NA NA 0.803J NA NA NA NA <4.01 NA NA NA NA 52.1 NA NA NA NA 160 NA NA NA NA 445 NA NA NA

NA <0.0500 NA NA NA NA <0.500 NA NA NA NA <0.00500 NA NA NA NA <0.0250 NA NA NA NA <0.0500 NA NA NA NA <0.00020 NA NA NA NA 0.0655 NA NA NA

NA >176 NA NA NA NA 0.956J NA NA NA NA 122 NA NA NA NA <49.7 NA NA NA NA 8.59 NA NA NA NA 5,110 NA NA NA 24

<1.870 NA NA NA NA <1.870 NA NA NA NA

NA NA 0.0246 <0.0100 0.288 NA NA 2.88 7 13 VS Event 3 Discrete 1 4/6/2015 500-94259-1 VS Event 3 Composite 1 4/6/2015 500-94259-2 VS Event 3 Composite 1 4/6/2015 500-94259-8 VS Event 3 Composite 1 4/6/2015 500-94259-6 VS Event 3 Composite 1 4/6/2015 500-94259-7TABLE 1 WASTE DELISTING VERIFICATION SAMPLING RESULTS (FILTER CAKE SAMPLE DATA) JOHN DEERE DES MOINES WORKS - ANKENY, IOWA

Page 4 of 4 Sample ID Sample Date Laboratory ID

Analytes Units

Min. Max. Min. Max.

Metals (Total)

Antimony mg/kg 103 NA NA 34.2 57.2 Arsenic mg/kg 52 NA NA <3.69 <42.6 Barium mg/kg 965 322 643 283 497 Beryllium mg/kg 21 NA NA <1.47 <17.0 Cadmium mg/kg 10 NA NA 1.37 <8.51 Chromium (total) mg/kg 22,500 8,710 15,000 5,150 17,000 Hexavalent Chromium mg/kg 20 <3.33 13.6 2.30 J 13.1 Cobalt mg/kg 11 NA NA 4.94 7.02 Copper mg/kg 1439 278 959 268 328 Lead mg/kg 437 165 291 113 303 Mercury mg/kg 1 0.116 0.635 0.0421 J 0.174 Nickel mg/kg 1515 70.2 1010 46.7 63.2 Selenium mg/kg 52 NA NA <3.66 <42.6 Silver mg/kg 26 NA NA 0.803 5.24 Thallium mg/kg 52 NA NA <3.66 <42.6 Tin mg/kg 68 NA NA 52.1 535 Vanadium mg/kg 380 24.8 253 12.8 202 Zinc mg/kg 5,085 346 3,390 273 981 Metals TCLP (Method 1311)

Arsenic mg/L 5.0 NA NA <0.0500 <0.0500 Barium mg/L 100.0 0.0 <0.500 <0.500 <0.500 Cadmium mg/L 1.0 NA NA <0.00500 <0.00500 Chromium mg/L 5.0 0.0120 0.8 <0.0250 <0.0250 Lead mg/L 5.0 <0.0500 <0.0500 <0.0500 <0.0500 Mercury mg/L 0.2 0.0000559 <0.00020 <0.00020 <0.00020 Nickel mg/L 32.4 0.0461 0.744 0.0269 0.0703 General Chemistry

Ignitability Degrees F 140 >176 >176 >176 >176 Cyanide (Total) mg/kg 3 0.613 <2.04 1.49 <2.21 Sulfide mg/kg

-- 166 817 369 636 Sulfide, Reactive mg/kg

-- <47.0 <49.3 <48.6 <50.0 pH SU >2 and <12.5 9.02 9.87 8.27 8.41 Oil & Grease mg/kg 32,250 6,920 21,500 4,150 21,400 Total Solids %

-- Volatile Organic Compounds

Acetone mg/kg 8 2.390 9.13 4.42 6.890 Methyl ethyl ketone mg/kg 0.3 0.0118 0.191 <1.870 0.314 Metal (Method 1313)

Hexavalent Chromium mg/L 0.087 NA NA 0.00234 0.288 pH (Method 1313 Target) SU

-- NA NA 7 2.88 Dataset Before Final Exclusion (Initial Event 2011 and 6 Events in 2012) EPA Delisting Levelsa Dataset After Final Exclusion (Verification Events 2014/2015)

NA 54.7 NA NA NA NA <3.69 NA NA NA NA 283 NA NA NA NA <1.47 NA NA NA NA 1.51 NA NA NA NA 17,000 NA NA NA NA 2.30J NA NA NA NA 5.58 NA NA NA NA 328B NA NA NA NA 113 NA NA NA NA 0.0421J NA NA NA NA 49.8 NA NA NA NA <3.69 NA NA NA NA <1.84 NA NA NA NA 6.59 NA NA NA NA 57.3B NA NA NA NA 21.1 NA NA NA NA 273 NA NA NA

NA <0.0500 NA NA NA NA <0.500 NA NA NA NA 0.00200J NA NA NA NA <0.0250 NA NA NA NA <0.0500 NA NA NA NA <0.000200 NA NA NA NA 0.0703 NA NA NA

NA >176 NA NA NA NA <1.94 NA NA NA NA 369 NA NA NA NA <49.1 NA NA NA NA 8.41 NA NA NA NA 8,290 NA NA NA 25

<2.850 NA NA NA NA <2.850 NA NA NA NA

NA NA 0.00873J <0.0100 0.174 NA NA 2.88 7 13

Notes: 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 of sample "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 and Listing 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. SU = Standard unit. 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) VS Event 4 Composite 1 VS Event 4 Composite 1 5/11/2015 5/11/2015 VS Event 4 Discrete 1 5/11/2015 500-95814-10 500-95814-11 500-95814-1 VS Event 4 Composite 1 VS Event 4 Composite 1

500-95814-2 500-95814-9

5/11/2015 5/11/2015TABLE 2 WASTE DELISTING VERIFICATION SAMPLING RESULTS (SW846 METHOD 1330 SAMPLE DATA) JOHN DEERE DES MOINES WORKS - ANKENY, IOWA



### Page 1 of 1

Sample IDVS Event 1 Composite 1D VS Event 1 Composite 1D VS Event 1 Composite 1D VS Event 2 Composite 1 VS Event 3 Composite 1 VS Event 4 Composite 1 Sample Date12/17/2014 12/17/2014 12/17/2014 2/2/2015 4/6/2015 5/11/2015 Laboratory ID1L41353-021L41353-031L41353-04 Comparison: ** ** **

EPA Delisting THF Extract Toluene Extract TCLP ExtractMMCExtract with Maximum Concentration AnalytesUnitsLevelsa Min. Max. Min. Max,

Metals TCLP (Method 1330)

Arsenic mg/L5.0 * NA * <0.050 <0.050 <0.050 <0.050 <0.050No Difference ** ** ** Barium mg/L100.0 * 0.037 * 0.062 <0.010 <0.010 0.114 0.062 TCLP ** ** ** Cadmium mg/L1.0 * NA * <0.005 <0.005 <0.005 <0.005 <0.005No Difference ** ** ** Chromiummg/L5.0 * 0.039 * 0.027 0.047 <0.020 <0.020 0.027 THF ** ** ** Copper mg/L

-- * 0.423 * NA NA NA NA NA ** ** ** Mercury mg/L0.2 * <0.0005 * 0.0005 <0.0005 0.0008 <0.0005 0.0005No Difference ** ** ** Nickel mg/L32.4 * 0.239 * 0.267 0.803 0.045 0.079 0.267 THF ** ** ** Lead mg/L5.0 * 0.028 * <0.020 <0.020 <0.020 <0.020 <0.020No Difference ** ** ** Vanadiummg/L

-- * <0.078 * NA NA NA NA NA ** ** ** Zinc mg/L

-- * 0.026 * NA NA NA NA NA **  

Extract Volumeml 303 253 563 1,119

Notes:

MMC = Mobile metal concentration. THF = Tetrahydrofuran. TCLP = Toxicity Characteristic Leaching Procedure. mg/L = Milligram per liter. VS = Verification Sample. ml = Milliliter. EPA = United States Environmental Protection Agency. Max. = Maximum. NA = Analysis not required. Min. = Minimum. -- = Analyte not required in Final Exclusion. VS Event 1 Composite 1D

MMC Dataset Before Final Exclusion (Initial Event 2011 and 6 Events in 2012) MMC Dataset After Final Exclusion (Verification

Events 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 of Hazardous Waste; Final Exclusion; Table 1 Paragraph 1. (B).

### TABLE 3 WASTE DELISTING VERIFICATION SAMPLING (EQUIPMENT BLANK AND TRIP BLANK DATA) JOHN DEERE DES MOINES WORKS - ANKENY, IOWA

Page 1 of 1 Sample ID VS Event 1 Trip Blank VS Event 2 Trip Blank Sample Date 12/17/2014 2/2/2015 Laboratory ID 500-89685-6 500-91647-4 Analytes Units

Metals (Total)

Antimony mg/L <0.0200 NA <0.0200 NA <0.0200 NA <0.0200 NA Arsenic mg/L <0.0100 NA <0.0100 NA <0.0100 NA <0.0100^ NA Barium mg/L <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 NA Beryllium mg/L <0.00400 NA <0.00400 NA <0.00400 NA <0.00400 NA Cadmium mg/L <0.00200 NA <0.00200 NA <0.00200 NA <0.00200 NA Chromium (total) mg/L <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 NA Hexavalent Chromium mg/L <0.0100 NA <0.0100 NA 0.00400J NA 0.00510J NA Cobalt mg/L <0.00500 NA <0.00500 NA <0.00500 NA <0.00500 NA Copper mg/L <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 NA Lead mg/L <0.00500 NA <0.00500 NA <0.00500 NA <0.00500 NA Mercury mg/L <0.000200 NA <0.000200 NA <0.000200 NA <0.000200 NA Nickel mg/L <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 NA Selenium mg/L <0.0100 NA <0.0100 NA <0.0100 NA <0.0100^ NA Silver mg/L <0.00500 NA <0.00500 NA <0.00500 NA <0.00500 NA Thallium mg/L <0.0100 NA <0.0100 NA <0.0100 NA <0.0100 NA Tin mg/L <0.0400 NA <0.0400 NA <0.0400 NA <0.0400 NA Vanadium mg/L <0.00500 NA <0.00500 NA <0.00500 NA <0.00500 NA Zinc mg/L 0.00542J,B, ^ NA <0.0200^ NA <0.0200 NA <0.0200^ NA General Chemistry

Cyanide (Total) mg/L <0.0100 NA <0.0100 NA 0.00220J NA <0.0100 NA Sulfide mg/L <1.00 NA <1.00 NA <1.00 NA <1.00 NA Sulfide, Reactive mg/L <1.00 NA <1.00 NA <1.00 NA <1.00 NA pH SU 7.56 NA 4.7 NA 6.03 NA 7.81 NA Oil & Grease mg/L <5.03 NA 1.33J,B NA <5.05 NA 1.52J,B NA Volatile Organic Compounds

Acetone mg/L <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 0.00525 Methyl ethyl ketone mg/L <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005

Notes: 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 1 4/6/2015 500-94259-3 VS Event 3 Trip Blank 4/6/2015 500-94259-4 VS Event 2 EB 1 2/2/2015 500-91647-3 VS Event 1 EB 1 12/17/2014 500-89685-5 VS Event 4 EB 1 VS Event 4 Trip Blank 5/11/2015 5/11/2015 500-95814-3 500-95814-4

# Photographic Log

Client: John Deere Des Moines Works Project: Filter Cake Waste Delisting Verification Sampling Event No. 4 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: 5/11/2015 Comments: Sampling area.

Photograph ID:2 Photo Location: John Deere Des Moines Works - Building No. 16. Direction: View South. Survey Date: 5/11/2015 Comments: Filter cake in roll-off box.

# Photographic Log

Client: John Deere Des Moines Works Project: Filter Cake Waste Delisting Verification Sampling Event No. 4 Site Name: JDDMW - Ankeny, IA Site Location: Building No. 16 Photograph ID:3 Photo Location: John Deere Des Moines Works - Building No. 16. Direction: View down. Survey Date: 5/11/2015 Comments: Composited sample.

# ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Chicago 2417 Bond Street University Park, IL 60484 Tel:(708)534-5200 TestAmerica Job ID: 500-95814-2 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: 5/13/2015 11:23:18 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: 500-95814-2



## Page 2 of 15 TestAmerica Chicago 

## 5/13/2015 

# 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: 500-95814-1 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: 5/27/2015 2:47:36 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: 500-95814-1



## Page 2 of 33 TestAmerica Chicago 

## 5/27/2015 

# 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 

# Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 

# Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 

# Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 

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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: 500-95814-3 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: 5/29/2015 2:30:04 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: 500-95814-3



## Page 2 of 30 TestAmerica Chicago 

## 5/29/2015 

# 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 

# Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 

# Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 

# Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 

# Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 

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