Exhibit_G,_NAS_North_Island,_FOR_Quarterly_Sample.pdf

Laboratory Job Number 286372

ANALYTICAL REPORT

CB&I Project : 140200 Naval Air Station North Island Location : NAS North Island, Bldg-788 San Diego, CA 92135 Level : II

Contract # : N62473-10-D-4009

Sample ID Lab ID

ROT 302/303/304 286372-001

This data package has been reviewed for technical correctness and completeness.

Release of this data has been authorized by the Laboratory Manager or the Manager's designee, as verified by the following signature. The results contained in this report meet all requirements of NELAC and pertain only to those samples which were submitted for analysis. This report may be reproduced only in its entirety.

Signature: Date: 03/21/2017 Dina Ali

Project Manager dina.ali@ctberk.com

(510) 204-2223 Ext 13105

CA ELAP# 2896, NELAP# 4044-001

CASE NARRATIVE

Laboratory number: 286372 Client: CB&I Project: 140200 Location: NAS North Island, Bldg-788 Request Date: 02/24/17 Samples Received: 02/24/17

This data package contains sample and QC results for one oil sample, requested for the above referenced project on 02/24/17. The sample was received on ice and intact.

Volatile Organics by GC/MS (EPA 8260B):

ROT 302/303/304 (lab # 286372-001) was diluted due to high hydrocarbons. No other analytical problems were encountered.

Semivolatile Organics by GC/MS (EPA 8270C):

ROT 302/303/304 (lab # 286372-001) was diluted due to high non-target analytes. No other analytical problems were encountered.

PCBs (EPA 8082):

All samples underwent sulfuric acid cleanup using EPA Method 3665A. All samples underwent sulfur cleanup using the copper option in EPA Method 3660B.

High response was observed for Aroclor-1260 in the CCV analyzed 03/04/17 00:38; affected data was qualified with "b". High response was observed for Aroclor-1260 in the CCV analyzed 03/04/17 07:53; affected data was qualified with "b". No other analytical problems were encountered.

Metals (EPA 6010B and EPA 7471A):

Copper and selenium were detected between the MDL and the RL in the method blank for batch 245295; these analytes were either not detected in the sample at or above the RL, or detected at a level at least 10 times that of the blank. No other analytical problems were encountered.

Flash Point (ASTM D93):

No analytical problems were encountered.

22.0

Detections Summary for 286372

Results for any subcontracted analyses are not included in this summary.

Client : CB&I Project : 140200 Location : NAS North Island, Bldg-788

Client Sample ID : ROT 302/303/304 Laboratory Sample ID : 286372-001

Analyte Result Flags RL MDL Units Basis IDF Method Prep Method

Toluene 290,000 J 500,000 100,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B

Ethylbenzene 380,000 J 500,000 50,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B m,p-Xylenes 1,300,000 500,000 100,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B o-Xylene 680,000 500,000 50,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B

Isopropylbenzene 180,000 J 500,000 14,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B

Propylbenzene 550,000 500,000 14,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B

1,3,5-Trimethylbenzene 800,000 500,000 14,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B

1,2,4-Trimethylbenzene 3,000,000 500,000 15,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B sec-Butylbenzene 400,000 J 500,000 15,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B para-Isopropyl Toluene 310,000 J 500,000 15,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B n-Butylbenzene 770,000 500,000 26,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B

Naphthalene 1,200,000 500,000 26,000 ug/Kg As Recd 100000 EPA 8260B EPA 5030B

Naphthalene 480,000 J 670,000 100,000 ug/Kg As Recd 33.30 EPA 8270C EPA 3580

2-Methylnaphthalene 1,000,000 670,000 100,000 ug/Kg As Recd 33.30 EPA 8270C EPA 3580

Barium 0.57 0.23 0.027 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Chromium 0.12 J 0.23 0.046 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Copper 6.0 0.23 0.051 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Lead 0.18 J 0.46 0.12 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Molybdenum 0.22 J 0.23 0.051 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Nickel 2.6 0.23 0.064 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Selenium 0.57 J 1.9 0.21 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Zinc 27 0.93 0.19 mg/Kg As Recd 1.000 EPA 6010B EPA 3050B

Flash Point 151 1.0 deg F As Recd 1.000 ASTM D93 METHOD

J = Estimated value

Page 1 of 1 24.0

Purgeable Organics by GC/MS

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 5030B Project#: 140200 Analysis: EPA 8260B Field ID: ROT 302/303/304 Diln Fac: 100,000 Lab ID: 286372-001 Batch#: 245146 Matrix: Miscell. Sampled: 02/22/17 Units: ug/Kg Received: 02/24/17 Basis: as received Analyzed: 03/05/17

Analyte Result RL MDL Freon 12 ND 1,000,000 65,000 Chloromethane ND 1,000,000 44,000 Vinyl Chloride ND 1,000,000 50,000 Bromomethane ND 1,000,000 100,000 Chloroethane ND 1,000,000 63,000 Trichlorofluoromethane ND 500,000 14,000 Acetone ND 2,000,000 330,000 Freon 113 ND 500,000 14,000 1,1-Dichloroethene ND 500,000 14,000 Methylene Chloride ND 2,000,000 280,000 Carbon Disulfide ND 500,000 26,000

MTBE ND 500,000 26,000

trans-1,2-Dichloroethene ND 500,000 14,000 Vinyl Acetate ND 5,000,000 50,000 1,1-Dichloroethane ND 500,000 15,000 2-Butanone ND 1,000,000 50,000 cis-1,2-Dichloroethene ND 500,000 17,000 2,2-Dichloropropane ND 500,000 27,000 Chloroform ND 500,000 26,000 Bromochloromethane ND 500,000 26,000 1,1,1-Trichloroethane ND 500,000 13,000 1,1-Dichloropropene ND 500,000 26,000 Carbon Tetrachloride ND 500,000 26,000 1,2-Dichloroethane ND 500,000 26,000 Benzene ND 500,000 14,000 Trichloroethene ND 500,000 14,000 1,2-Dichloropropane ND 500,000 14,000 Bromodichloromethane ND 500,000 26,000 Dibromomethane ND 500,000 26,000 4-Methyl-2-Pentanone ND 1,000,000 50,000 cis-1,3-Dichloropropene ND 500,000 26,000 Toluene 290,000 J 500,000 100,000 trans-1,3-Dichloropropene ND 500,000 26,000 1,1,2-Trichloroethane ND 500,000 50,000 2-Hexanone ND 1,000,000 50,000 1,3-Dichloropropane ND 500,000 14,000 Tetrachloroethene ND 500,000 14,000 Dibromochloromethane ND 500,000 26,000 1,2-Dibromoethane ND 500,000 14,000 Chlorobenzene ND 500,000 14,000 1,1,1,2-Tetrachloroethane ND 500,000 14,000 Ethylbenzene 380,000 J 500,000 50,000 m,p-Xylenes 1,300,000 500,000 100,000 o-Xylene 680,000 500,000 50,000 Styrene ND 500,000 14,000 Bromoform ND 500,000 50,000 Isopropylbenzene 180,000 J 500,000 14,000 1,1,2,2-Tetrachloroethane ND 500,000 26,000 1,2,3-Trichloropropane ND 500,000 26,000 Propylbenzene 550,000 500,000 14,000 Bromobenzene ND 500,000 14,000

J= Estimated value DO= Diluted Out ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 2 12.1

Client: CB&I Prep: EPA 5030B Project#: 140200 Analysis: EPA 8260B Field ID: ROT 302/303/304 Diln Fac: 100,000 Lab ID: 286372-001 Batch#: 245146 Matrix: Miscell. Sampled: 02/22/17 Units: ug/Kg Received: 02/24/17 Basis: as received Analyzed: 03/05/17

Analyte Result RL MDL 1,3,5-Trimethylbenzene 800,000 500,000 14,000 2-Chlorotoluene ND 500,000 14,000 4-Chlorotoluene ND 500,000 14,000 tert-Butylbenzene ND 500,000 14,000 1,2,4-Trimethylbenzene 3,000,000 500,000 15,000 sec-Butylbenzene 400,000 J 500,000 15,000 para-Isopropyl Toluene 310,000 J 500,000 15,000 1,3-Dichlorobenzene ND 500,000 26,000 1,4-Dichlorobenzene ND 500,000 26,000 n-Butylbenzene 770,000 500,000 26,000 1,2-Dichlorobenzene ND 500,000 26,000 1,2-Dibromo-3-Chloropropane ND 500,000 50,000 1,2,4-Trichlorobenzene ND 500,000 26,000 Hexachlorobutadiene ND 500,000 26,000 Naphthalene 1,200,000 500,000 26,000 1,2,3-Trichlorobenzene ND 500,000 26,000

Surrogate %REC Limits Dibromofluoromethane 103 80-128 1,2-Dichloroethane-d4 96 80-136 Toluene-d8 105 80-120 Bromofluorobenzene 99 80-132 Trifluorotoluene (MeOH) DO 56-129

J= Estimated value DO= Diluted Out ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 2 of 2 12.1

Batch QC Report

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 5030B Project#: 140200 Analysis: EPA 8260B Matrix: Soil Batch#: 245146 Units: ug/Kg Analyzed: 03/04/17 Diln Fac: 1.000

Type: BS Lab ID: QC875349

Analyte Spiked Result %REC Limits 1,1-Dichloroethene 25.00 31.36 125 65-127 Benzene 25.00 26.56 106 75-124 Trichloroethene 25.00 26.03 104 76-122 Toluene 25.00 27.35 109 77-120 Chlorobenzene 25.00 25.87 103 80-120

Surrogate %REC Limits Dibromofluoromethane 110 80-128 1,2-Dichloroethane-d4 107 80-136 Toluene-d8 107 80-120 Bromofluorobenzene 103 80-132

Type: BSD Lab ID: QC875350

Analyte Spiked Result %REC Limits RPD Lim 1,1-Dichloroethene 25.00 31.35 125 65-127 0 28 Benzene 25.00 26.06 104 75-124 2 25 Trichloroethene 25.00 25.55 102 76-122 2 26 Toluene 25.00 26.96 108 77-120 1 25 Chlorobenzene 25.00 25.60 102 80-120 1 24

Surrogate %REC Limits Dibromofluoromethane 109 80-128 1,2-Dichloroethane-d4 103 80-136 Toluene-d8 107 80-120 Bromofluorobenzene 102 80-132

RPD= Relative Percent Difference Page 1 of 1 13.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 5030B Project#: 140200 Analysis: EPA 8260B Type: BLANK Diln Fac: 1.000 Lab ID: QC875351 Batch#: 245146 Matrix: Soil Analyzed: 03/04/17 Units: ug/Kg

Analyte Result RL MDL Freon 12 ND 10 0.6 Chloromethane ND 10 0.5 Vinyl Chloride ND 10 0.4 Bromomethane ND 10 0.4 Chloroethane ND 10 0.4 Trichlorofluoromethane ND 5.0 0.3 Acetone ND 20 3.3 Freon 113 ND 5.0 0.5 1,1-Dichloroethene ND 5.0 0.6 Methylene Chloride ND 20 1.1 Carbon Disulfide ND 5.0 0.7

MTBE ND 5.0 0.5

trans-1,2-Dichloroethene ND 5.0 0.7 Vinyl Acetate ND 50 1.0 1,1-Dichloroethane ND 5.0 0.8 2-Butanone ND 10 1.3 cis-1,2-Dichloroethene ND 5.0 0.6 2,2-Dichloropropane ND 5.0 0.6 Chloroform ND 5.0 0.7 Bromochloromethane ND 5.0 0.5 1,1,1-Trichloroethane ND 5.0 0.7 1,1-Dichloropropene ND 5.0 0.7 Carbon Tetrachloride ND 5.0 0.6 1,2-Dichloroethane ND 5.0 0.6 Benzene ND 5.0 0.7 Trichloroethene ND 5.0 0.7 1,2-Dichloropropane ND 5.0 0.6 Bromodichloromethane ND 5.0 0.5 Dibromomethane ND 5.0 0.5 4-Methyl-2-Pentanone ND 10 0.6 cis-1,3-Dichloropropene ND 5.0 0.5 Toluene ND 5.0 0.8 trans-1,3-Dichloropropene ND 5.0 0.5 1,1,2-Trichloroethane ND 5.0 0.5 2-Hexanone ND 10 0.6 1,3-Dichloropropane ND 5.0 0.5 Tetrachloroethene ND 5.0 0.6 Dibromochloromethane ND 5.0 0.5 1,2-Dibromoethane ND 5.0 0.5 Chlorobenzene ND 5.0 0.6 1,1,1,2-Tetrachloroethane ND 5.0 0.5 Ethylbenzene ND 5.0 0.7 m,p-Xylenes ND 5.0 1.4 o-Xylene ND 5.0 0.6 Styrene ND 5.0 0.5 Bromoform ND 5.0 0.5 Isopropylbenzene ND 5.0 0.6 1,1,2,2-Tetrachloroethane ND 5.0 0.5 1,2,3-Trichloropropane ND 5.0 0.6 Propylbenzene ND 5.0 0.7 Bromobenzene ND 5.0 0.5 1,3,5-Trimethylbenzene ND 5.0 0.6 2-Chlorotoluene ND 5.0 0.7

ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 2 14.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 5030B Project#: 140200 Analysis: EPA 8260B Type: BLANK Diln Fac: 1.000 Lab ID: QC875351 Batch#: 245146 Matrix: Soil Analyzed: 03/04/17 Units: ug/Kg

Analyte Result RL MDL 4-Chlorotoluene ND 5.0 0.6 tert-Butylbenzene ND 5.0 0.7 1,2,4-Trimethylbenzene ND 5.0 0.6 sec-Butylbenzene ND 5.0 0.6 para-Isopropyl Toluene ND 5.0 0.6 1,3-Dichlorobenzene ND 5.0 0.5 1,4-Dichlorobenzene ND 5.0 0.5 n-Butylbenzene ND 5.0 0.6 1,2-Dichlorobenzene ND 5.0 0.5 1,2-Dibromo-3-Chloropropane ND 5.0 0.8 1,2,4-Trichlorobenzene ND 5.0 0.5 Hexachlorobutadiene ND 5.0 0.6 Naphthalene ND 5.0 1.0 1,2,3-Trichlorobenzene ND 5.0 0.5

Surrogate %REC Limits Dibromofluoromethane 107 80-128 1,2-Dichloroethane-d4 102 80-136 Toluene-d8 107 80-120 Bromofluorobenzene 108 80-132

ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 2 of 2 14.0

Semivolatile Organics by GC/MS

Client: CB&I Prep: EPA 3580 Project#: 140200 Analysis: EPA 8270C Field ID: ROT 302/303/304 Batch#: 245107 Lab ID: 286372-001 Sampled: 02/22/17 Matrix: Miscell. Received: 02/24/17 Units: ug/Kg Prepared: 03/03/17 Basis: as received Analyzed: 03/20/17 Diln Fac: 33.30

Analyte Result RL MDL N-Nitrosodimethylamine ND 3,300,000 470,000 Phenol ND 3,300,000 100,000 bis(2-Chloroethyl)ether ND 3,300,000 600,000 2-Chlorophenol ND 3,300,000 100,000 1,3-Dichlorobenzene ND 3,300,000 570,000 1,4-Dichlorobenzene ND 3,300,000 100,000 Benzyl alcohol ND 3,300,000 110,000 1,2-Dichlorobenzene ND 3,300,000 100,000 2-Methylphenol ND 3,300,000 140,000 bis(2-Chloroisopropyl) ether ND 3,300,000 100,000 4-Methylphenol ND 3,300,000 100,000 N-Nitroso-di-n-propylamine ND 3,300,000 100,000 Hexachloroethane ND 3,300,000 100,000 Nitrobenzene ND 3,300,000 110,000 Isophorone ND 3,300,000 100,000 2-Nitrophenol ND 6,700,000 100,000 2,4-Dimethylphenol ND 3,300,000 140,000 Benzoic acid ND 17,000,000 4,400,000 bis(2-Chloroethoxy)methane ND 3,300,000 100,000 2,4-Dichlorophenol ND 3,300,000 100,000 1,2,4-Trichlorobenzene ND 3,300,000 100,000 Naphthalene 480,000 J 670,000 100,000 4-Chloroaniline ND 3,300,000 94,000 Hexachlorobutadiene ND 3,300,000 89,000 4-Chloro-3-methylphenol ND 3,300,000 83,000 2-Methylnaphthalene 1,000,000 670,000 100,000 Hexachlorocyclopentadiene ND 17,000,000 140,000 2,4,6-Trichlorophenol ND 3,300,000 130,000 2,4,5-Trichlorophenol ND 3,300,000 84,000 2-Chloronaphthalene ND 3,300,000 90,000 2-Nitroaniline ND 6,700,000 110,000 Dimethylphthalate ND 3,300,000 100,000 Acenaphthylene ND 670,000 89,000 2,6-Dinitrotoluene ND 3,300,000 90,000 3-Nitroaniline ND 6,700,000 100,000 Acenaphthene ND 670,000 100,000 2,4-Dinitrophenol ND 17,000,000 1,500,000 4-Nitrophenol ND 6,700,000 710,000 Dibenzofuran ND 3,300,000 100,000 2,4-Dinitrotoluene ND 3,300,000 96,000 Diethylphthalate ND 3,300,000 110,000 Fluorene ND 670,000 99,000 4-Chlorophenyl-phenylether ND 3,300,000 97,000 4-Nitroaniline ND 6,700,000 100,000 4,6-Dinitro-2-methylphenol ND 17,000,000 770,000 N-Nitrosodiphenylamine ND 3,300,000 110,000 Azobenzene ND 3,300,000 86,000 4-Bromophenyl-phenylether ND 3,300,000 110,000 Hexachlorobenzene ND 3,300,000 110,000 Pentachlorophenol ND 6,700,000 1,300,000

J= Estimated value DO= Diluted Out ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 2 20.1

Client: CB&I Prep: EPA 3580 Project#: 140200 Analysis: EPA 8270C Field ID: ROT 302/303/304 Batch#: 245107 Lab ID: 286372-001 Sampled: 02/22/17 Matrix: Miscell. Received: 02/24/17 Units: ug/Kg Prepared: 03/03/17 Basis: as received Analyzed: 03/20/17 Diln Fac: 33.30

Analyte Result RL MDL Phenanthrene ND 670,000 110,000 Anthracene ND 670,000 110,000 Di-n-butylphthalate ND 3,300,000 120,000 Fluoranthene ND 670,000 100,000 Pyrene ND 670,000 110,000 Butylbenzylphthalate ND 3,300,000 100,000 3,3'-Dichlorobenzidine ND 6,700,000 100,000 Benzo(a)anthracene ND 670,000 100,000 Chrysene ND 670,000 110,000 bis(2-Ethylhexyl)phthalate ND 3,300,000 130,000 Di-n-octylphthalate ND 3,300,000 100,000 Benzo(b)fluoranthene ND 670,000 90,000 Benzo(k)fluoranthene ND 670,000 95,000 Benzo(a)pyrene ND 670,000 88,000 Indeno(1,2,3-cd)pyrene ND 670,000 88,000 Dibenz(a,h)anthracene ND 670,000 93,000 Benzo(g,h,i)perylene ND 670,000 100,000

Surrogate %REC Limits 2-Fluorophenol DO 28-120 Phenol-d5 DO 29-120 2,4,6-Tribromophenol DO 26-120 Nitrobenzene-d5 DO 38-120 2-Fluorobiphenyl DO 41-120 Terphenyl-d14 DO 43-120

J= Estimated value DO= Diluted Out ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 2 of 2 20.1

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 3580 Project#: 140200 Analysis: EPA 8270C Type: BLANK Diln Fac: 1.000 Lab ID: QC875210 Batch#: 245107 Matrix: Miscell. Prepared: 03/03/17 Units: ug/Kg Analyzed: 03/08/17

Analyte Result RL MDL N-Nitrosodimethylamine ND 100,000 14,000 Phenol ND 100,000 3,000 bis(2-Chloroethyl)ether ND 100,000 18,000 2-Chlorophenol ND 100,000 3,000 1,3-Dichlorobenzene ND 100,000 17,000 1,4-Dichlorobenzene ND 100,000 3,000 Benzyl alcohol ND 100,000 3,300 1,2-Dichlorobenzene ND 100,000 3,000 2-Methylphenol ND 100,000 4,100 bis(2-Chloroisopropyl) ether ND 100,000 3,000 4-Methylphenol ND 100,000 3,000 N-Nitroso-di-n-propylamine ND 100,000 3,000 Hexachloroethane ND 100,000 3,000 Nitrobenzene ND 100,000 3,300 Isophorone ND 100,000 3,000 2-Nitrophenol ND 200,000 3,000 2,4-Dimethylphenol ND 100,000 4,200 Benzoic acid ND 500,000 130,000 bis(2-Chloroethoxy)methane ND 100,000 3,000 2,4-Dichlorophenol ND 100,000 3,000 1,2,4-Trichlorobenzene ND 100,000 3,000 Naphthalene ND 20,000 3,000 4-Chloroaniline ND 100,000 2,800 Hexachlorobutadiene ND 100,000 2,700 4-Chloro-3-methylphenol ND 100,000 2,500 2-Methylnaphthalene ND 20,000 3,000 Hexachlorocyclopentadiene ND 500,000 4,100 2,4,6-Trichlorophenol ND 100,000 3,800 2,4,5-Trichlorophenol ND 100,000 2,500 2-Chloronaphthalene ND 100,000 2,700 2-Nitroaniline ND 200,000 3,200 Dimethylphthalate ND 100,000 3,000 Acenaphthylene ND 20,000 2,700 2,6-Dinitrotoluene ND 100,000 2,700 3-Nitroaniline ND 200,000 3,000 Acenaphthene ND 20,000 3,000 2,4-Dinitrophenol ND 500,000 45,000 4-Nitrophenol ND 200,000 21,000 Dibenzofuran ND 100,000 3,100 2,4-Dinitrotoluene ND 100,000 2,900 Diethylphthalate ND 100,000 3,400 Fluorene ND 20,000 3,000 4-Chlorophenyl-phenylether ND 100,000 2,900 4-Nitroaniline ND 200,000 3,000 4,6-Dinitro-2-methylphenol ND 500,000 23,000 N-Nitrosodiphenylamine ND 100,000 3,200 Azobenzene ND 100,000 2,600 4-Bromophenyl-phenylether ND 100,000 3,200 Hexachlorobenzene ND 100,000 3,200 Pentachlorophenol ND 200,000 38,000 Phenanthrene ND 20,000 3,200 Anthracene ND 20,000 3,400 Di-n-butylphthalate ND 100,000 3,600

ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 2 21.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 3580 Project#: 140200 Analysis: EPA 8270C Type: BLANK Diln Fac: 1.000 Lab ID: QC875210 Batch#: 245107 Matrix: Miscell. Prepared: 03/03/17 Units: ug/Kg Analyzed: 03/08/17

Analyte Result RL MDL Fluoranthene ND 20,000 3,100 Pyrene ND 20,000 3,300 Butylbenzylphthalate ND 100,000 3,000 3,3'-Dichlorobenzidine ND 200,000 3,000 Benzo(a)anthracene ND 20,000 3,100 Chrysene ND 20,000 3,400 bis(2-Ethylhexyl)phthalate ND 100,000 3,900 Di-n-octylphthalate ND 100,000 3,000 Benzo(b)fluoranthene ND 20,000 2,700 Benzo(k)fluoranthene ND 20,000 2,900 Benzo(a)pyrene ND 20,000 2,600 Indeno(1,2,3-cd)pyrene ND 20,000 2,600 Dibenz(a,h)anthracene ND 20,000 2,800 Benzo(g,h,i)perylene ND 20,000 3,000

Surrogate %REC Limits 2-Fluorophenol 61 28-120 Phenol-d5 63 29-120 2,4,6-Tribromophenol 65 26-120 Nitrobenzene-d5 84 38-120 2-Fluorobiphenyl 91 41-120 Terphenyl-d14 102 43-120

ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 2 of 2 21.0

Polychlorinated Biphenyls (PCBs)

Client: CB&I Prep: EPA 3580 Project#: 140200 Analysis: EPA 8082 Field ID: ROT 302/303/304 Sampled: 02/22/17 Units: ug/Kg Received: 02/24/17 Basis: as received Prepared: 03/03/17 Diln Fac: 1.000 Analyzed: 03/04/17 Batch#: 245106

Type: SAMPLE Matrix: Miscell.

Lab ID: 286372-001

Analyte Result RL MDL Aroclor-1016 ND 500 180 Aroclor-1221 ND 1,000 480 Aroclor-1232 ND 500 230 Aroclor-1242 ND 500 210 Aroclor-1248 ND 500 230 Aroclor-1254 ND 500 180 Aroclor-1260 ND 500 120

Surrogate %REC Limits Decachlorobiphenyl 83 38-158

Type: BLANK Matrix: Oil Lab ID: QC875207

Analyte Result RL MDL Aroclor-1016 ND 500 180 Aroclor-1221 ND 1,000 480 Aroclor-1232 ND 500 230 Aroclor-1242 ND 500 210 Aroclor-1248 ND 500 230 Aroclor-1254 ND 500 180 Aroclor-1260 ND 500 120

Surrogate %REC Limits Decachlorobiphenyl 115 38-158

ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 1 15.0

Polychlorinated Biphenyls (PCBs)

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 3580 Project#: 140200 Analysis: EPA 8082 Matrix: Oil Batch#: 245106 Units: ug/Kg Prepared: 03/03/17 Diln Fac: 1.000 Analyzed: 03/04/17

Type: BS Lab ID: QC875208

Analyte Spiked Result %REC Limits Aroclor-1016 10,000 13,570 136 61-152 Aroclor-1260 10,000 15,550 b 156 62-158

Surrogate %REC Limits Decachlorobiphenyl 120 38-158

Type: BSD Lab ID: QC875209

Analyte Spiked Result %REC Limits RPD Lim Aroclor-1016 10,000 12,740 127 61-152 6 44 Aroclor-1260 10,000 15,070 b 151 62-158 3 32

Surrogate %REC Limits Decachlorobiphenyl 118 38-158 b= See narrative RPD= Relative Percent Difference Page 1 of 1 16.0

California Title 22 Metals

Lab #: 286372 Project#: 140200 Client: CB&I Location: NAS North Island, Bldg-788 Field ID: ROT 302/303/304 Basis: as received Lab ID: 286372-001 Diln Fac: 1.000 Matrix: Miscell. Sampled: 02/22/17 Units: mg/Kg Received: 02/24/17

Analyte Result RL MDL Batch# Prepared Analyzed Prep Analysis Antimony ND 1.9 0.12 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Arsenic ND 0.56 0.19 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Barium 0.57 0.23 0.027 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Beryllium ND 0.093 0.019 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Cadmium ND 0.23 0.046 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Chromium 0.12 J 0.23 0.046 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Cobalt ND 0.23 0.046 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Copper 6.0 0.23 0.051 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Lead 0.18 J 0.46 0.12 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Mercury ND 0.016 0.0049 244976 02/28/17 02/28/17 METHOD EPA 7471A Molybdenum 0.22 J 0.23 0.051 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Nickel 2.6 0.23 0.064 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Selenium 0.57 J 1.9 0.21 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Silver ND 0.23 0.046 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Thallium ND 0.46 0.14 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Vanadium ND 0.23 0.046 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B Zinc 27 0.93 0.19 245295 03/09/17 03/10/17 EPA 3050B EPA 6010B

J= Estimated value ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 1 5.1

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: METHOD Project#: 140200 Analysis: EPA 7471A Analyte: Mercury Diln Fac: 1.000 Type: BLANK Batch#: 244976 Lab ID: QC874705 Prepared: 02/28/17 Matrix: Soil Analyzed: 02/28/17 Units: mg/Kg

Result RL MDL

ND 0.017 0.0052

ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 1 6.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: METHOD Project#: 140200 Analysis: EPA 7471A Analyte: Mercury Batch#: 244976 Matrix: Soil Prepared: 02/28/17 Units: mg/Kg Analyzed: 02/28/17 Diln Fac: 1.000

Type Lab ID Spiked Result %REC Limits RPD Lim

BS QC874706 0.1984 0.2024 102 79-129

BSD QC874707 0.2049 0.2108 103 79-129 1 40

RPD= Relative Percent Difference Page 1 of 1 7.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: METHOD Project#: 140200 Analysis: EPA 7471A Analyte: Mercury Diln Fac: 1.000 Field ID: ZZZZZZZZZZ Batch#: 244976 MSS Lab ID: 286394-001 Sampled: 02/24/17 Matrix: Soil Received: 02/24/17 Units: mg/Kg Prepared: 02/28/17 Basis: as received Analyzed: 02/28/17

Type Lab ID MSS Result Spiked Result %REC Limits RPD Lim

MS QC874708 0.03905 0.2155 0.2755 110 63-149

MSD QC874709 0.2232 0.2866 111 63-149 1 69

RPD= Relative Percent Difference Page 1 of 1 8.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 3050B Project#: 140200 Analysis: EPA 6010B Type: BLANK Diln Fac: 1.000 Lab ID: QC875968 Batch#: 245295 Matrix: Soil Prepared: 03/09/17 Units: mg/Kg Analyzed: 03/10/17

Analyte Result RL MDL Antimony ND 2.0 0.13 Arsenic ND 0.60 0.20 Barium ND 0.25 0.029 Beryllium ND 0.099 0.020 Cadmium ND 0.25 0.050 Chromium ND 0.25 0.050 Cobalt ND 0.25 0.050 Copper 0.084 J 0.25 0.055 Lead ND 0.50 0.13 Molybdenum ND 0.25 0.055 Nickel ND 0.25 0.068 Selenium 0.23 J 2.0 0.22 Silver ND 0.25 0.050 Thallium ND 0.50 0.15 Vanadium ND 0.25 0.050 Zinc ND 0.99 0.20

J= Estimated value ND= Not Detected at or above MDL RL= Reporting Limit MDL= Method Detection Limit Page 1 of 1 17.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 3050B Project#: 140200 Analysis: EPA 6010B Matrix: Soil Batch#: 245295 Units: mg/Kg Prepared: 03/09/17 Diln Fac: 1.000 Analyzed: 03/10/17

Type: BS Lab ID: QC875969

Analyte Spiked Result %REC Limits Antimony 46.73 49.22 105 80-120 Arsenic 46.73 49.24 105 80-120 Barium 46.73 48.94 105 80-120 Beryllium 23.36 24.81 106 80-120 Cadmium 46.73 46.42 99 80-120 Chromium 46.73 50.37 108 80-120 Cobalt 46.73 46.06 99 80-120 Copper 46.73 46.22 99 80-120 Lead 46.73 46.97 101 80-120 Molybdenum 46.73 47.58 102 80-120 Nickel 46.73 46.90 100 80-120 Selenium 46.73 45.65 98 80-120 Silver 4.673 4.466 96 80-120 Thallium 46.73 48.25 103 80-120 Vanadium 46.73 50.69 108 80-120 Zinc 46.73 46.31 99 80-120

Type: BSD Lab ID: QC875970

Analyte Spiked Result %REC Limits RPD Lim Antimony 49.50 51.81 105 80-120 1 20 Arsenic 49.50 51.38 104 80-120 2 20 Barium 49.50 51.39 104 80-120 1 20 Beryllium 24.75 26.19 106 80-120 0 20 Cadmium 49.50 49.71 100 80-120 1 20 Chromium 49.50 53.88 109 80-120 1 20 Cobalt 49.50 49.21 99 80-120 1 20 Copper 49.50 48.81 99 80-120 0 20 Lead 49.50 50.37 102 80-120 1 20 Molybdenum 49.50 50.78 103 80-120 1 20 Nickel 49.50 50.20 101 80-120 1 20 Selenium 49.50 47.85 97 80-120 1 20 Silver 4.950 4.783 97 80-120 1 20 Thallium 49.50 50.95 103 80-120 0 20 Vanadium 49.50 53.98 109 80-120 1 20 Zinc 49.50 50.12 101 80-120 2 20

RPD= Relative Percent Difference Page 1 of 1 18.0

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: EPA 3050B Project#: 140200 Analysis: EPA 6010B Field ID: ZZZZZZZZZZ Batch#: 245295 MSS Lab ID: 286389-022 Sampled: 02/23/17 Matrix: Soil Received: 02/24/17 Units: mg/Kg Prepared: 03/09/17 Basis: as received Analyzed: 03/10/17 Diln Fac: 1.000

Type: MS Lab ID: QC875971

Analyte MSS Result Spiked Result %REC Limits Antimony <0.1254 50.00 14.47 29 1-120 Arsenic 6.390 50.00 55.34 98 69-129 Barium 317.2 50.00 358.1 82 NM 43-156 Beryllium 0.6013 25.00 24.71 96 80-120 Cadmium 0.2741 50.00 49.83 99 73-122 Chromium 49.20 50.00 97.97 98 63-135 Cobalt 17.88 50.00 58.09 80 66-121 Copper 67.15 50.00 114.6 95 72-133 Lead 16.28 50.00 58.52 84 50-131 Molybdenum <0.05259 50.00 37.46 75 67-120 Nickel 61.18 50.00 101.0 80 56-135 Selenium 1.024 50.00 45.30 89 57-123 Silver <0.04762 5.000 2.078 42 34-136 Thallium <0.1434 50.00 36.46 73 57-121 Vanadium 60.36 50.00 109.6 98 70-131 Zinc 96.95 50.00 137.9 82 48-143

Type: MSD Lab ID: QC875972

Analyte Spiked Result %REC Limits RPD Lim Antimony 51.55 14.33 28 1-120 4 43 Arsenic 51.55 57.55 99 69-129 1 30 Barium 51.55 363.4 90 NM 43-156 1 40 Beryllium 25.77 25.48 97 80-120 0 20 Cadmium 51.55 51.01 98 73-122 1 28 Chromium 51.55 101.9 102 63-135 2 34 Cobalt 51.55 59.19 80 66-121 0 30 Copper 51.55 118.0 99 72-133 2 40 Lead 51.55 61.61 88 50-131 3 48 Molybdenum 51.55 37.88 73 67-120 2 20 Nickel 51.55 102.9 81 56-135 0 33 Selenium 51.55 47.27 90 57-123 1 29 Silver 5.155 2.088 41 34-136 3 39 Thallium 51.55 37.25 72 57-121 1 23 Vanadium 51.55 116.4 109 70-131 5 28 Zinc 51.55 141.9 87 48-143 2 33

NM= Not Meaningful: Sample concentration > 4X spike concentration RPD= Relative Percent Difference Page 1 of 1 19.0

Flash Point

Client: CB&I Prep: METHOD Project#: 140200 Analysis: ASTM D93 Analyte: Flash Point Diln Fac: 1.000 Field ID: ROT 302/303/304 Batch#: 244929 Lab ID: 286372-001 Sampled: 02/22/17 Matrix: Miscell. Received: 02/24/17 Units: deg F Analyzed: 02/27/17

Result RL 151 1.0

RL= Reporting Limit Page 1 of 1 9.1

Flash Point

Lab #: 286372 Location: NAS North Island, Bldg-788 Client: CB&I Prep: METHOD Project#: 140200 Analysis: ASTM D93 Analyte: Flash Point Diln Fac: 1.000 Field ID: ROT 302/303/304 Batch#: 244929 MSS Lab ID: 286372-001 Sampled: 02/22/17 Matrix: Miscell. Received: 02/24/17 Units: deg F Analyzed: 02/27/17

Type Lab ID MSS Result Spiked Result RL %REC Limits RPD Lim

SDUP QC874548 151.0 150.5 1.000 0 20

BS QC874549 81.00 80.50 99 98-103

BSD QC874550 81.00 80.00 99 98-103 1 20

RL= Reporting Limit RPD= Relative Percent Difference Page 1 of 1 10.2