Agenda packet — Imperial Beach City Council, March 15, 2023 (part 5 of 6)

ANALYTE Method Units RESULT DF MDL RL Fraction QA CODE Batch ID Date Processed Date Analyzed Polynuclear Aromatic Hydrocarbons
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Fluorene EPA 8270E ng/dry g 1.45 1 0.068 0.5 NA O-34030 07-Feb-22 15-Feb-22 Indeno[1,2,3-cd]pyrene EPA 8270E ng/dry g 51.3 1 0.087 0.5 NA O-34030 07-Feb-22 15-Feb-22 Naphthalene EPA 8270E ng/dry g 1.07 1 0.187 0.5 NA O-34030 07-Feb-22 15-Feb-22 Perylene EPA 8270E ng/dry g 6.95 1 0.114 0.5 NA O-34030 07-Feb-22 15-Feb-22 Phenanthrene EPA 8270E ng/dry g 23.6 1 0.074 0.5 NA O-34030 07-Feb-22 15-Feb-22 Pyrene EPA 8270E ng/dry g 40.3 1 0.048 0.5 NA O-34030 07-Feb-22 15-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 64 of 74

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 (d10-Acenaphthene) EPA 8270E % Recovery 79 1 NA O-34030 07-Feb-22 14-Feb-22 (d10-Phenanthrene) EPA 8270E % Recovery 92 1 NA O-34030 07-Feb-22 14-Feb-22 (d12-Chrysene) EPA 8270E % Recovery 62 1 NA O-34030 07-Feb-22 14-Feb-22 (d12-Perylene) EPA 8270E % Recovery 95 1 NA O-34030 07-Feb-22 14-Feb-22 (d8-Naphthalene) EPA 8270E % Recovery 60 1 NA O-34030 07-Feb-22 14-Feb-22 1-Methylnaphthalene EPA 8270E ng/dry g 0.592 1 0.084 0.5 NA O-34030 07-Feb-22 14-Feb-22 1-Methylphenanthrene EPA 8270E ng/dry g 0.787 1 0.076 0.5 NA O-34030 07-Feb-22 14-Feb-22 2,3,5-Trimethylnaphthalene EPA 8270E ng/dry g 0.383 1 0.059 0.5 NA J O-34030 07-Feb-22 14-Feb-22 2,6-Dimethylnaphthalene EPA 8270E ng/dry g 0.654 1 0.065 0.5 NA O-34030 07-Feb-22 14-Feb-22 2-Methylnaphthalene EPA 8270E ng/dry g 1.13 1 0.106 0.5 NA O-34030 07-Feb-22 14-Feb-22 Acenaphthene EPA 8270E ng/dry g ND 1 0.078 0.5 NA O-34030 07-Feb-22 14-Feb-22 Acenaphthylene EPA 8270E ng/dry g 0.278 1 0.058 0.5 NA J O-34030 07-Feb-22 14-Feb-22 Anthracene EPA 8270E ng/dry g 0.506 1 0.046 0.5 NA O-34030 07-Feb-22 14-Feb-22 Benz[a]anthracene EPA 8270E ng/dry g 3.7 1 0.107 0.5 NA O-34030 07-Feb-22 14-Feb-22 Benzo[a]pyrene EPA 8270E ng/dry g 3.89 1 0.106 0.5 NA O-34030 07-Feb-22 14-Feb-22 Benzo[b]fluoranthene EPA 8270E ng/dry g 5.4 1 0.063 0.5 NA O-34030 07-Feb-22 14-Feb-22 Benzo[e]pyrene EPA 8270E ng/dry g 6.06 1 0.098 0.5 NA O-34030 07-Feb-22 14-Feb-22 Benzo[g,h,i]perylene EPA 8270E ng/dry g 9.34 1 0.093 0.5 NA O-34030 07-Feb-22 14-Feb-22 Benzo[k]fluoranthene EPA 8270E ng/dry g 5.98 1 0.111 0.5 NA O-34030 07-Feb-22 14-Feb-22 Biphenyl EPA 8270E ng/dry g 0.738 1 0.092 0.5 NA O-34030 07-Feb-22 14-Feb-22 Chrysene EPA 8270E ng/dry g 3.51 1 0.067 0.5 NA O-34030 07-Feb-22 14-Feb-22 Dibenz[a,h]anthracene EPA 8270E ng/dry g 10.1 1 0.106 0.5 NA O-34030 07-Feb-22 14-Feb-22 Dibenzothiophene EPA 8270E ng/dry g ND 1 0.2 0.5 NA O-34030 07-Feb-22 14-Feb-22 Fluoranthene EPA 8270E ng/dry g 8.08 1 0.035 0.5 NA O-34030 07-Feb-22 14-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 65 of 74

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Project: Tijuana River Sediment Management Monitoring Prog Fluorene EPA 8270E ng/dry g 0.213 1 0.068 0.5 NA J O-34030 07-Feb-22 14-Feb-22 Indeno[1,2,3-cd]pyrene EPA 8270E ng/dry g 15 1 0.087 0.5 NA O-34030 07-Feb-22 14-Feb-22 Naphthalene EPA 8270E ng/dry g 0.695 1 0.187 0.5 NA O-34030 07-Feb-22 14-Feb-22 Perylene EPA 8270E ng/dry g 1.53 1 0.114 0.5 NA O-34030 07-Feb-22 14-Feb-22 Phenanthrene EPA 8270E ng/dry g 2.84 1 0.074 0.5 NA O-34030 07-Feb-22 14-Feb-22 Pyrene EPA 8270E ng/dry g 9.55 1 0.048 0.5 NA O-34030 07-Feb-22 14-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 66 of 74

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94875-R1 2021-E2-SMGLPILOT-01 Matrix: Sediment Sampled: 07-Jan-22 13:55 Received: 07-Jan-22 (d10-Acenaphthene) EPA 8270E % Recovery 89 1 NA O-34030 07-Feb-22 15-Feb-22 (d10-Phenanthrene) EPA 8270E % Recovery 93 1 NA O-34030 07-Feb-22 15-Feb-22 (d12-Chrysene) EPA 8270E % Recovery 65 1 NA O-34030 07-Feb-22 15-Feb-22 (d12-Perylene) EPA 8270E % Recovery 92 1 NA O-34030 07-Feb-22 15-Feb-22 (d8-Naphthalene) EPA 8270E % Recovery 80 1 NA O-34030 07-Feb-22 15-Feb-22 1-Methylnaphthalene EPA 8270E ng/dry g 0.819 1 0.084 0.5 NA O-34030 07-Feb-22 15-Feb-22 1-Methylphenanthrene EPA 8270E ng/dry g 0.873 1 0.076 0.5 NA O-34030 07-Feb-22 15-Feb-22 2,3,5-Trimethylnaphthalene EPA 8270E ng/dry g 0.3 1 0.059 0.5 NA J O-34030 07-Feb-22 15-Feb-22 2,6-Dimethylnaphthalene EPA 8270E ng/dry g 0.58 1 0.065 0.5 NA O-34030 07-Feb-22 15-Feb-22 2-Methylnaphthalene EPA 8270E ng/dry g 1.4 1 0.106 0.5 NA O-34030 07-Feb-22 15-Feb-22 Acenaphthene EPA 8270E ng/dry g ND 1 0.078 0.5 NA O-34030 07-Feb-22 15-Feb-22 Acenaphthylene EPA 8270E ng/dry g 0.339 1 0.058 0.5 NA J O-34030 07-Feb-22 15-Feb-22 Anthracene EPA 8270E ng/dry g 0.729 1 0.046 0.5 NA O-34030 07-Feb-22 15-Feb-22 Benz[a]anthracene EPA 8270E ng/dry g 2.81 1 0.107 0.5 NA O-34030 07-Feb-22 15-Feb-22 Benzo[a]pyrene EPA 8270E ng/dry g 5.87 1 0.106 0.5 NA O-34030 07-Feb-22 15-Feb-22 Benzo[b]fluoranthene EPA 8270E ng/dry g 5.57 1 0.063 0.5 NA O-34030 07-Feb-22 15-Feb-22 Benzo[e]pyrene EPA 8270E ng/dry g 15 1 0.098 0.5 NA O-34030 07-Feb-22 15-Feb-22 Benzo[g,h,i]perylene EPA 8270E ng/dry g 13.5 1 0.093 0.5 NA O-34030 07-Feb-22 15-Feb-22 Benzo[k]fluoranthene EPA 8270E ng/dry g 4.31 1 0.111 0.5 NA O-34030 07-Feb-22 15-Feb-22 Biphenyl EPA 8270E ng/dry g 3.29 1 0.092 0.5 NA O-34030 07-Feb-22 15-Feb-22 Chrysene EPA 8270E ng/dry g 7.12 1 0.067 0.5 NA O-34030 07-Feb-22 15-Feb-22 Dibenz[a,h]anthracene EPA 8270E ng/dry g 23.1 1 0.106 0.5 NA O-34030 07-Feb-22 15-Feb-22 Dibenzothiophene EPA 8270E ng/dry g ND 1 0.2 0.5 NA O-34030 07-Feb-22 15-Feb-22 Fluoranthene EPA 8270E ng/dry g 4.69 1 0.035 0.5 NA O-34030 07-Feb-22 15-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 67 of 74

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Project: Tijuana River Sediment Management Monitoring Prog Fluorene EPA 8270E ng/dry g 0.248 1 0.068 0.5 NA J O-34030 07-Feb-22 15-Feb-22 Indeno[1,2,3-cd]pyrene EPA 8270E ng/dry g 14.7 1 0.087 0.5 NA O-34030 07-Feb-22 15-Feb-22 Naphthalene EPA 8270E ng/dry g 1.71 1 0.187 0.5 NA O-34030 07-Feb-22 15-Feb-22 Perylene EPA 8270E ng/dry g 4.82 1 0.114 0.5 NA O-34030 07-Feb-22 15-Feb-22 Phenanthrene EPA 8270E ng/dry g 2.91 1 0.074 0.5 NA O-34030 07-Feb-22 15-Feb-22 Pyrene EPA 8270E ng/dry g 7.73 1 0.048 0.5 NA O-34030 07-Feb-22 15-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 68 of 74

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ANALYTE Method Units RESULT DF MDL RL Fraction QA CODE Batch ID Date Processed Date Analyzed Pyrethroids
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94871-R1 2021-E2-BASINSMGL-01 Matrix: Sediment Sampled: 07-Jan-22 13:00 Received: 07-Jan-22 (d5-Bifenthrin) EPA 8270E-MRM % Recovery 61 1 NA O-34030 21-Feb-22 24-Feb-22 (d5-Fenvalerate) EPA 8270E-MRM % Recovery 83 1 NA O-34030 21-Feb-22 24-Feb-22 Allethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 Bifenthrin EPA 8270E-MRM ng/dry g 17.8 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyfluthrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyhalothrin, Total Lambda EPA 8270E-MRM ng/dry g 8.29 1 0.23 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cypermethrin EPA 8270E-MRM ng/dry g 147 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Danitol (Fenpropathrin) EPA 8270E-MRM ng/dry g ND 1 0.21 0.5 NA O-34030 21-Feb-22 24-Feb-22 Deltamethrin/Tralomethrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Esfenvalerate EPA 8270E-MRM ng/dry g 12.3 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Fenvalerate EPA 8270E-MRM ng/dry g 11.7 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, cis- EPA 8270E-MRM ng/dry g 21.4 1 0.17 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, trans- EPA 8270E-MRM ng/dry g 27 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Prallethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 69 of 74

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ANALYTE Method Units RESULT DF MDL RL Fraction QA CODE Batch ID Date Processed Date Analyzed Pyrethroids
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94872-R1 2021-E2-BASINTJRVR-01 Matrix: Sediment Sampled: 07-Jan-22 9:10 Received: 07-Jan-22 (d5-Bifenthrin) EPA 8270E-MRM % Recovery 74 1 NA O-34030 21-Feb-22 24-Feb-22 (d5-Fenvalerate) EPA 8270E-MRM % Recovery 73 1 NA O-34030 21-Feb-22 24-Feb-22 Allethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 Bifenthrin EPA 8270E-MRM ng/dry g ND 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyfluthrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyhalothrin, Total Lambda EPA 8270E-MRM ng/dry g ND 1 0.23 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cypermethrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Danitol (Fenpropathrin) EPA 8270E-MRM ng/dry g ND 1 0.21 0.5 NA O-34030 21-Feb-22 24-Feb-22 Deltamethrin/Tralomethrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Esfenvalerate EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Fenvalerate EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, cis- EPA 8270E-MRM ng/dry g ND 1 0.17 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, trans- EPA 8270E-MRM ng/dry g ND 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Prallethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 70 of 74

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ANALYTE Method Units RESULT DF MDL RL Fraction QA CODE Batch ID Date Processed Date Analyzed Pyrethroids
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94873-R1 2021-E2-BRWNFL-01 Matrix: Sediment Sampled: 07-Jan-22 14:45 Received: 07-Jan-22 (d5-Bifenthrin) EPA 8270E-MRM % Recovery 61 1 NA O-34030 21-Feb-22 24-Feb-22 (d5-Fenvalerate) EPA 8270E-MRM % Recovery 94 1 NA O-34030 21-Feb-22 24-Feb-22 Allethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 Bifenthrin EPA 8270E-MRM ng/dry g 1.37 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyfluthrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyhalothrin, Total Lambda EPA 8270E-MRM ng/dry g ND 1 0.23 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cypermethrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Danitol (Fenpropathrin) EPA 8270E-MRM ng/dry g ND 1 0.21 0.5 NA O-34030 21-Feb-22 24-Feb-22 Deltamethrin/Tralomethrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Esfenvalerate EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Fenvalerate EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, cis- EPA 8270E-MRM ng/dry g ND 1 0.17 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, trans- EPA 8270E-MRM ng/dry g ND 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Prallethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 71 of 74

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ANALYTE Method Units RESULT DF MDL RL Fraction QA CODE Batch ID Date Processed Date Analyzed Pyrethroids
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 (d5-Bifenthrin) EPA 8270E-MRM % Recovery 58 1 NA O-34030 21-Feb-22 24-Feb-22 (d5-Fenvalerate) EPA 8270E-MRM % Recovery 76 1 NA O-34030 21-Feb-22 24-Feb-22 Allethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 Bifenthrin EPA 8270E-MRM ng/dry g 1.41 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyfluthrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cyhalothrin, Total Lambda EPA 8270E-MRM ng/dry g ND 1 0.23 0.5 NA O-34030 21-Feb-22 24-Feb-22 Cypermethrin EPA 8270E-MRM ng/dry g 27.7 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Danitol (Fenpropathrin) EPA 8270E-MRM ng/dry g ND 1 0.21 0.5 NA O-34030 21-Feb-22 24-Feb-22 Deltamethrin/Tralomethrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Esfenvalerate EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Fenvalerate EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, cis- EPA 8270E-MRM ng/dry g ND 1 0.17 0.5 NA O-34030 21-Feb-22 24-Feb-22 Permethrin, trans- EPA 8270E-MRM ng/dry g ND 1 0.22 0.5 NA O-34030 21-Feb-22 24-Feb-22 Prallethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 24-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 72 of 74

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ANALYTE Method Units RESULT DF MDL RL Fraction QA CODE Batch ID Date Processed Date Analyzed Pyrethroids
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94875-R1 2021-E2-SMGLPILOT-01 Matrix: Sediment Sampled: 07-Jan-22 13:55 Received: 07-Jan-22 (d5-Bifenthrin) EPA 8270E-MRM % Recovery 58 1 NA O-34030 21-Feb-22 25-Feb-22 (d5-Fenvalerate) EPA 8270E-MRM % Recovery 87 1 NA O-34030 21-Feb-22 25-Feb-22 Allethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 25-Feb-22 Bifenthrin EPA 8270E-MRM ng/dry g 5.06 1 0.22 0.5 NA O-34030 21-Feb-22 25-Feb-22 Cyfluthrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 25-Feb-22 Cyhalothrin, Total Lambda EPA 8270E-MRM ng/dry g 1.36 1 0.23 0.5 NA O-34030 21-Feb-22 25-Feb-22 Cypermethrin EPA 8270E-MRM ng/dry g 28.6 1 0.25 0.5 NA O-34030 21-Feb-22 25-Feb-22 Danitol (Fenpropathrin) EPA 8270E-MRM ng/dry g ND 1 0.21 0.5 NA O-34030 21-Feb-22 25-Feb-22 Deltamethrin/Tralomethrin EPA 8270E-MRM ng/dry g ND 1 0.25 0.5 NA O-34030 21-Feb-22 25-Feb-22 Esfenvalerate EPA 8270E-MRM ng/dry g 3.25 1 0.25 0.5 NA O-34030 21-Feb-22 25-Feb-22 Fenvalerate EPA 8270E-MRM ng/dry g 3 1 0.25 0.5 NA O-34030 21-Feb-22 25-Feb-22 Permethrin, cis- EPA 8270E-MRM ng/dry g ND 1 0.17 0.5 NA O-34030 21-Feb-22 25-Feb-22 Permethrin, trans- EPA 8270E-MRM ng/dry g ND 1 0.22 0.5 NA O-34030 21-Feb-22 25-Feb-22 Prallethrin EPA 8270E-MRM ng/dry g ND 1 0.28 0.5 NA O-34030 21-Feb-22 25-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 73 of 74

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ANALYTE Method Units RESULT DF MDL RL Fraction QA CODE Batch ID Date Processed Date Analyzed Total Extractable Organics
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94871-R1 2021-E2-BASINSMGL-01 Matrix: Sediment Sampled: 07-Jan-22 13:00 Received: 07-Jan-22 Oil & Grease SM 5520 E mg/dry kg 413 1 100 200 NA C-52033 24-Jan-22 26-Jan-22 TRPH SM 5520 E mg/dry kg 197 1 100 200 NA J C-52036 07-Feb-22 08-Feb-22 Sample ID: 94872-R1 2021-E2-BASINTJRVR-01 Matrix: Sediment Sampled: 07-Jan-22 9:10 Received: 07-Jan-22 Oil & Grease SM 5520 E mg/dry kg ND 1 100 200 NA C-52033 24-Jan-22 26-Jan-22 TRPH SM 5520 E mg/dry kg ND 1 100 200 NA C-52036 07-Feb-22 08-Feb-22 Sample ID: 94873-R1 2021-E2-BRWNFL-01 Matrix: Sediment Sampled: 07-Jan-22 14:45 Received: 07-Jan-22 Oil & Grease SM 5520 E mg/dry kg 168 1 100 200 NA J C-52033 24-Jan-22 26-Jan-22 TRPH SM 5520 E mg/dry kg ND 1 100 200 NA C-52036 07-Feb-22 08-Feb-22 Sample ID: 94874-R1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Oil & Grease SM 5520 E mg/dry kg 182 1 100 200 NA J C-52033 24-Jan-22 26-Jan-22 TRPH SM 5520 E mg/dry kg 756 1 100 200 NA C-52036 07-Feb-22 08-Feb-22 Sample ID: 94875-R1 2021-E2-SMGLPILOT-01 Matrix: Sediment Sampled: 07-Jan-22 13:55 Received: 07-Jan-22 Oil & Grease SM 5520 E mg/dry kg 646 1 100 200 NA C-52033 24-Jan-22 26-Jan-22 TRPH SM 5520 E mg/dry kg 279 1 100 200 NA C-52036 07-Feb-22 08-Feb-22 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 ar - 74 of 74

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SAMPLE ID BATCH ID RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODE LEVEL RESULT % LIMITS % LIMITS
QUALITY CONTROL REPORT Conventionals
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Chloride Method: EPA 300.0 Fraction: NA Prepared: 11-Feb-22 Analyzed: 11-Feb-22 94866-B1 QAQC Procedural Blank C-60135 ND 1 0.01 0.05 mg/dry kg 94866-BS1 QAQC Procedural Blank C-60135 48.8 1 0.01 0.05 mg/dry kg 52.7 0 93 90 - 110% PASS 94866-BS2 QAQC Procedural Blank C-60135 49.5 1 0.01 0.05 mg/dry kg 52.7 0 94 90 - 110% PASS 1 30 PASS 94871-MS1 2021-E2-BASINSMGL-0
1 C-60135 67.6 1 0.01 0.05 mg/dry kg 60.1 13.7 90 80 - 120% PASS 94871-MS2 2021-E2-BASINSMGL-0
1 C-60135 67.8 1 0.01 0.05 mg/dry kg 60.1 13.7 90 80 - 120% PASS 0 30 PASS 94871-R2 2021-E2-BASINSMGL-0
1 C-60135 13.7 1 0.01 0.05 mg/dry kg 0 30 PASS
Dissolved Sulfides Method: Plumb, 1981 and TERL Fraction: NA Prepared: 25-Feb-22 Analyzed: 25-Feb-22 94866-B1 QAQC Procedural Blank C-63081 ND 1 0.2 0.4 mg/dry kg 94866-BS1 QAQC Procedural Blank C-63081 0.976 1 0.2 0.4 mg/dry kg 1.06 0 92 44 - 132% PASS 94866-BS2 QAQC Procedural Blank C-63081 1.07 1 0.2 0.4 mg/dry kg 1.06 0 101 44 - 132% PASS 9 30 PASS Nitrate as N Method: EPA 300.0 Fraction: NA Prepared: 07-Jan-22 Analyzed: 07-Jan-22 94870-B1 QAQC Procedural Blank C-60123 ND 1 0.01 0.05 mg/L 94870-BS1 QAQC Procedural Blank C-60123 49.5 1 0.01 0.05 mg/L 52.7 0 94 90 - 110% PASS 94870-BS2 QAQC Procedural Blank C-60123 50.3 1 0.01 0.05 mg/L 52.7 0 95 90 - 110% PASS 1 30 PASS 94876-MS1 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 4.76 1 0.01 0.05 mg/L 5 0 95 80 - 120% PASS
94876-MS2 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 4.67 1 0.01 0.05 mg/L 5 0 93 80 - 120% PASS 2 30 PASS 94876-R2 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 ND 1 0.01 0.05 mg/L 0 30 PASS
94866-B1 QAQC Procedural Blank C-60135 ND 1 0.01 0.05 mg/dry kg 94866-BS1 QAQC Procedural Blank C-60135 49.5 1 0.01 0.05 mg/dry kg 52.7 0 94 90 - 110% PASS 94866-BS2 QAQC Procedural Blank C-60135 50.3 1 0.01 0.05 mg/dry kg 52.7 0 95 90 - 110% PASS 1 30 PASS 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 qca - 1 of 3

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Project: Tijuana River Sediment Management Monitoring Prog 94871-MS1 2021-E2-BASINSMGL-0
1 C-60135 55.7 1 0.01 0.05 mg/dry kg 50.3 11 89 80 - 120% PASS 94871-MS2 2021-E2-BASINSMGL-0
1 C-60135 55.8 1 0.01 0.05 mg/dry kg 50.3 11 89 80 - 120% PASS 0 30 PASS 94871-R2 2021-E2-BASINSMGL-0
1 C-60135 11 1 0.01 0.05 mg/dry kg 0 30 PASS
Nitrite as N Method: EPA 300.0 Fraction: NA Prepared: 07-Jan-22 Analyzed: 07-Jan-22 94870-B1 QAQC Procedural Blank C-60123 ND 1 0.01 0.03 mg/L 94870-BS1 QAQC Procedural Blank C-60123 14.9 1 0.01 0.03 mg/L 15.8 0 94 90 - 110% PASS 94870-BS2 QAQC Procedural Blank C-60123 14.4 1 0.01 0.03 mg/L 15.8 0 91 90 - 110% PASS 3 30 PASS 94876-MS1 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 1.56 1 0.01 0.03 mg/L 1.5 0 104 80 - 120% PASS
94876-MS2 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 1.56 1 0.01 0.03 mg/L 1.5 0 104 80 - 120% PASS 0 30 PASS 94876-R2 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 ND 1 0.01 0.03 mg/L 0 30 PASS
94866-B1 QAQC Procedural Blank C-60135 ND 1 0.01 0.05 mg/dry kg 94866-BS1 QAQC Procedural Blank C-60135 14.9 1 0.01 0.05 mg/dry kg 15.8 0 94 90 - 110% PASS 94866-BS2 QAQC Procedural Blank C-60135 14.4 1 0.01 0.05 mg/dry kg 15.8 0 91 90 - 110% PASS 3 30 PASS 94871-MS1 2021-E2-BASINSMGL-0
1 C-60135 17.4 1 0.01 0.05 mg/dry kg 18 0 97 80 - 120% PASS 94871-MS2 2021-E2-BASINSMGL-0
1 C-60135 17.5 1 0.01 0.05 mg/dry kg 18 0 97 80 - 120% PASS 0 30 PASS 94871-R2 2021-E2-BASINSMGL-0
1 C-60135 ND 1 0.01 0.05 mg/dry kg 0 30 PASS
Percent Solids Method: SM 2540 B Fraction: NA Prepared: 24-Jan-22 Analyzed: 26-Jan-22 94866-B1 QAQC Procedural Blank C-64004 ND 1 0.1 0.1 %
94872-R2 2021-E2-BASINTJRVR-0
1 C-64004 94.9 1 0.1 0.1 % 1 30 PASS
Sulfate Method: EPA 300.0 Fraction: NA Prepared: 07-Jan-22 Analyzed: 07-Jan-22 94870-B1 QAQC Procedural Blank C-60123 ND 1 0.01 0.05 mg/L 94870-BS1 QAQC Procedural Blank C-60123 48.1 1 0.01 0.05 mg/L 52.7 0 91 90 - 110% PASS 94870-BS2 QAQC Procedural Blank C-60123 48.9 1 0.01 0.05 mg/L 52.7 0 93 90 - 110% PASS 2 30 PASS 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 qca - 2 of 3

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Project: Tijuana River Sediment Management Monitoring Prog 94876-MS1 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 4.69 1 0.01 0.05 mg/L 5 0 94 80 - 120% PASS
94876-MS2 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 4.61 1 0.01 0.05 mg/L 5 0 92 80 - 120% PASS 2 30 PASS 94876-R2 2021-E2-EQUIPBLANK_

NUTRIENTS
C-60123 ND 1 0.01 0.05 mg/L 0 30 PASS
94866-B1 QAQC Procedural Blank C-60135 ND 1 0.01 0.05 mg/dry kg 94866-BS1 QAQC Procedural Blank C-60135 48.1 1 0.01 0.05 mg/dry kg 52.7 0 91 90 - 110% PASS 94866-BS2 QAQC Procedural Blank C-60135 48.9 1 0.01 0.05 mg/dry kg 52.7 0 93 90 - 110% PASS 2 30 PASS 94871-MS1 2021-E2-BASINSMGL-0
1 C-60135 179 1 0.01 0.05 mg/dry kg 60.1 123 93 80 - 120% PASS 94871-MS2 2021-E2-BASINSMGL-0
1 C-60135 179 1 0.01 0.05 mg/dry kg 60.1 123 93 80 - 120% PASS 0 30 PASS 94871-R2 2021-E2-BASINSMGL-0
1 C-60135 123 1 0.01 0.05 mg/dry kg 0 30 PASS
Total Alkalinity Method: SM 2320 B Fraction: NA Prepared: 28-Feb-22 Analyzed: 28-Feb-22 94866-BS1 QAQC Procedural Blank C-60140 506 1 1 5 mg/dry kg 550 0 92 70 - 130% PASS 94866-BS2 QAQC Procedural Blank C-60140 501 1 1 5 mg/dry kg 550 0 91 70 - 130% PASS 1 30 PASS Total Organic Carbon Method: EPA 9060 Fraction: NA Prepared: 26-Jan-22 Analyzed: 31-Jan-22 94866-B1 QAQC Procedural Blank C-36012 ND 1 0.01 0.01 % dry weight 94868-CRM1 QAQC CRM - SRM 1944 C-36012 3.95 1 0.01 0.01 % dry weight 4.4 90 80 - 120% PASS Total Sulfides Method: Plumb, 1981 and TERL Fraction: NA Prepared: 25-Feb-22 Analyzed: 25-Feb-22 94866-B1 QAQC Procedural Blank C-63082 ND 1 0.2 0.4 mg/dry kg 94866-BS1 QAQC Procedural Blank C-63082 2.36 1 0.2 0.4 mg/dry kg 2.36 0 100 66 - 116% PASS 94866-BS2 QAQC Procedural Blank C-63082 2.29 1 0.2 0.4 mg/dry kg 2.36 0 97 66 - 116% PASS 3 30 PASS 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769 qca - 3 of 3

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QUALITY CONTROL REPORT Acid Extractable Compounds
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (2,4,6-Tribromophenol) NA 111 1 % Recovery 100 111 0 - 130% PASS (d5-Phenol) NA 110 1 % Recovery 100 110 0 - 130% PASS
2,3,4,6-Tetrachlorophenol NA ND 1 50 100 ng/dry g
2,4,5-Trichlorophenol NA ND 1 50 100 ng/dry g
2,4,6-Trichlorophenol NA ND 1 50 100 ng/dry g
2,4-Dichlorophenol NA ND 1 50 100 ng/dry g
2,4-Dimethylphenol NA ND 1 100 200 ng/dry g
2,4-Dinitrophenol NA ND 1 100 200 ng/dry g
2,6-Dichlorophenol NA ND 1 50 100 ng/dry g
2-Chlorophenol NA ND 1 50 100 ng/dry g
2-Methyl-4,6-dinitrophenol NA ND 1 100 200 ng/dry g
2-Methylphenol NA ND 1 100 200 ng/dry g
2-Nitrophenol NA ND 1 100 200 ng/dry g
3+4-Methylphenol NA ND 1 100 200 ng/dry g
4-Chloro-3-methylphenol NA ND 1 100 200 ng/dry g
4-Nitrophenol NA ND 1 100 200 ng/dry g
Pentachlorophenol NA ND 1 50 100 ng/dry g
Phenol NA ND 1 100 200 ng/dry g
qcb - 1 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (2,4,6-Tribromophenol) NA 114 1 % Recovery 100 0 114 0 - 130% PASS (d5-Phenol) NA 91 1 % Recovery 100 0 91 0 - 130% PASS
2,3,4,6-Tetrachlorophenol NA 701 1 50 100 ng/dry g 1000 0 70 30 - 130% PASS 2,4,5-Trichlorophenol NA 928 1 50 100 ng/dry g 1000 0 93 30 - 130% PASS 2,4,6-Trichlorophenol NA 501 1 50 100 ng/dry g 1000 0 50 0 - 130% PASS 2,4-Dichlorophenol NA 677 1 50 100 ng/dry g 1000 0 68 0 - 130% PASS 2,4-Dimethylphenol NA 233 1 100 200 ng/dry g 1000 0 23 0 - 130% PASS 2,4-Dinitrophenol NA 861 1 100 200 ng/dry g 1000 0 86 0 - 130% PASS 2,6-Dichlorophenol NA 330 1 50 100 ng/dry g 1000 0 33 30 - 130% PASS 2-Chlorophenol NA 543 1 50 100 ng/dry g 1000 0 54 30 - 130% PASS 2-Methyl-4,6-dinitrophenol NA 532 1 100 200 ng/dry g 1000 0 53 0 - 130% PASS 2-Methylphenol NA 473 1 100 200 ng/dry g 1000 0 47 0 - 130% PASS 2-Nitrophenol NA 898 1 100 200 ng/dry g 1000 0 90 0 - 130% PASS 3+4-Methylphenol NA 227 1 100 200 ng/dry g 1000 0 23 0 - 130% PASS 4-Chloro-3-methylphenol NA 1060 1 100 200 ng/dry g 1000 0 106 0 - 130% PASS 4-Nitrophenol NA 962 1 100 200 ng/dry g 1000 0 96 0 - 130% PASS Pentachlorophenol NA 746 1 50 100 ng/dry g 1000 0 75 0 - 130% PASS Phenol NA 364 1 100 200 ng/dry g 1000 0 36 0 - 130% PASS qcb - 2 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (2,4,6-Tribromophenol) NA 98 1 % Recovery 100 0 98 0 - 130% PASS 15 30 PASS (d5-Phenol) NA 94 1 % Recovery 100 0 94 0 - 130% PASS 3 30 PASS 2,3,4,6-Tetrachlorophenol NA 641 1 50 100 ng/dry g 1000 0 64 30 - 130% PASS 9 30 PASS 2,4,5-Trichlorophenol NA 880 1 50 100 ng/dry g 1000 0 88 30 - 130% PASS 6 30 PASS 2,4,6-Trichlorophenol NA 417 1 50 100 ng/dry g 1000 0 42 0 - 130% PASS 17 30 PASS 2,4-Dichlorophenol NA 591 1 50 100 ng/dry g 1000 0 59 0 - 130% PASS 14 30 PASS 2,4-Dimethylphenol NA 259 1 100 200 ng/dry g 1000 0 26 0 - 130% PASS 12 30 PASS 2,4-Dinitrophenol NA 751 1 100 200 ng/dry g 1000 0 75 0 - 130% PASS 14 30 PASS 2,6-Dichlorophenol NA 392 1 50 100 ng/dry g 1000 0 39 30 - 130% PASS 17 30 PASS 2-Chlorophenol NA 577 1 50 100 ng/dry g 1000 0 58 30 - 130% PASS 7 30 PASS 2-Methyl-4,6-dinitrophenol NA 497 1 100 200 ng/dry g 1000 0 50 0 - 130% PASS 6 30 PASS 2-Methylphenol NA 472 1 100 200 ng/dry g 1000 0 47 0 - 130% PASS 0 30 PASS 2-Nitrophenol NA 955 1 100 200 ng/dry g 1000 0 95 0 - 130% PASS 6 30 PASS 3+4-Methylphenol NA 257 1 100 200 ng/dry g 1000 0 26 0 - 130% PASS 12 30 PASS 4-Chloro-3-methylphenol NA 1110 1 100 200 ng/dry g 1000 0 111 0 - 130% PASS 5 30 PASS 4-Nitrophenol NA 1170 1 100 200 ng/dry g 1000 0 117 0 - 130% PASS 20 30 PASS Pentachlorophenol NA 738 1 50 100 ng/dry g 1000 0 74 0 - 130% PASS 1 30 PASS Phenol NA 360 1 100 200 ng/dry g 1000 0 36 0 - 130% PASS 0 30 PASS qcb - 3 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (2,4,6-Tribromophenol) NA 71 1 % Recovery 100 0 71 0 - 98% PASS (d5-Phenol) NA 48 1 % Recovery 100 0 48 0 - 66% PASS
2,3,4,6-Tetrachlorophenol NA 622 1 50 100 ng/dry g 1000 0 62 30 - 130% PASS 2,4,5-Trichlorophenol NA 667 1 50 100 ng/dry g 1000 0 67 30 - 130% PASS 2,4,6-Trichlorophenol NA 510 1 50 100 ng/dry g 1000 0 51 0 - 130% PASS 2,4-Dichlorophenol NA 279 1 50 100 ng/dry g 1000 0 28 0 - 130% PASS 2,4-Dimethylphenol NA 103 1 100 200 ng/dry g 1000 0 10 0 - 130% PASS 2,4-Dinitrophenol NA 455 1 100 200 ng/dry g 1000 0 46 0 - 130% PASS 2,6-Dichlorophenol NA 328 1 50 100 ng/dry g 1000 0 33 30 - 130% PASS 2-Chlorophenol NA 370 1 50 100 ng/dry g 1000 0 37 30 - 130% PASS 2-Methyl-4,6-dinitrophenol NA 864 1 100 200 ng/dry g 1000 0 86 0 - 130% PASS 2-Methylphenol NA 421 1 100 200 ng/dry g 1000 0 42 0 - 130% PASS 2-Nitrophenol NA 679 1 100 200 ng/dry g 1000 0 68 0 - 130% PASS 3+4-Methylphenol NA 116 1 100 200 ng/dry g 1000 0 12 0 - 130% PASS 4-Chloro-3-methylphenol NA 896 1 100 200 ng/dry g 1000 0 90 0 - 130% PASS 4-Nitrophenol NA 682 1 100 200 ng/dry g 1000 0 68 0 - 130% PASS Pentachlorophenol NA 753 1 50 100 ng/dry g 1000 0 75 0 - 130% PASS Phenol NA 237 1 100 200 ng/dry g 1000 0 24 0 - 130% PASS qcb - 4 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (2,4,6-Tribromophenol) NA 58 1 % Recovery 100 0 58 0 - 98% PASS 20 30 PASS (d5-Phenol) NA 49 1 % Recovery 100 0 49 0 - 66% PASS 2 30 PASS 2,3,4,6-Tetrachlorophenol NA 589 1 50 100 ng/dry g 1000 0 59 30 - 130% PASS 5 30 PASS 2,4,5-Trichlorophenol NA 769 1 50 100 ng/dry g 1000 0 77 30 - 130% PASS 14 30 PASS 2,4,6-Trichlorophenol NA 537 1 50 100 ng/dry g 1000 0 54 0 - 130% PASS 6 30 PASS 2,4-Dichlorophenol NA 260 1 50 100 ng/dry g 1000 0 26 0 - 130% PASS 7 30 PASS 2,4-Dimethylphenol NA 101 1 100 200 ng/dry g 1000 0 10 0 - 130% PASS 0 30 PASS 2,4-Dinitrophenol NA 497 1 100 200 ng/dry g 1000 0 50 0 - 130% PASS 8 30 PASS 2,6-Dichlorophenol NA 401 1 50 100 ng/dry g 1000 0 40 30 - 130% PASS 19 30 PASS 2-Chlorophenol NA 329 1 50 100 ng/dry g 1000 0 33 30 - 130% PASS 11 30 PASS 2-Methyl-4,6-dinitrophenol NA 894 1 100 200 ng/dry g 1000 0 89 0 - 130% PASS 3 30 PASS 2-Methylphenol NA 423 1 100 200 ng/dry g 1000 0 42 0 - 130% PASS 0 30 PASS 2-Nitrophenol NA 780 1 100 200 ng/dry g 1000 0 78 0 - 130% PASS 14 30 PASS 3+4-Methylphenol NA 120 1 100 200 ng/dry g 1000 0 12 0 - 130% PASS 0 30 PASS 4-Chloro-3-methylphenol NA 1060 1 100 200 ng/dry g 1000 0 106 0 - 130% PASS 16 30 PASS 4-Nitrophenol NA 677 1 100 200 ng/dry g 1000 0 68 0 - 130% PASS 0 30 PASS Pentachlorophenol NA 718 1 50 100 ng/dry g 1000 0 72 0 - 130% PASS 4 30 PASS Phenol NA 213 1 100 200 ng/dry g 1000 0 21 0 - 130% PASS 13 30 PASS qcb - 5 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (2,4,6-Tribromophenol) NA 52 1 % Recovery 100 52 0 - 98% PASS 2 30 PASS (d5-Phenol) NA 23 1 % Recovery 100 23 0 - 66% PASS 12 30 PASS 2,3,4,6-Tetrachlorophenol NA ND 1 50 100 ng/dry g 0 30 PASS 2,4,5-Trichlorophenol NA ND 1 50 100 ng/dry g 0 30 PASS 2,4,6-Trichlorophenol NA ND 1 50 100 ng/dry g 0 30 PASS 2,4-Dichlorophenol NA ND 1 50 100 ng/dry g 0 30 PASS
2,4-Dimethylphenol NA ND 1 100 200 ng/dry g 0 30 PASS
2,4-Dinitrophenol NA ND 1 100 200 ng/dry g 0 30 PASS
2,6-Dichlorophenol NA ND 1 50 100 ng/dry g 0 30 PASS
2-Chlorophenol NA ND 1 50 100 ng/dry g 0 30 PASS
2-Methyl-4,6-dinitrophenol NA ND 1 100 200 ng/dry g 0 30 PASS 2-Methylphenol NA ND 1 100 200 ng/dry g 0 30 PASS
2-Nitrophenol NA ND 1 100 200 ng/dry g 0 30 PASS
3+4-Methylphenol NA ND 1 100 200 ng/dry g 0 30 PASS
4-Chloro-3-methylphenol NA ND 1 100 200 ng/dry g 0 30 PASS 4-Nitrophenol NA ND 1 100 200 ng/dry g 0 30 PASS
Pentachlorophenol NA ND 1 50 100 ng/dry g 0 30 PASS
Phenol NA ND 1 100 200 ng/dry g 0 30 PASS
qcb - 6 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Base/Neutral Extractable Compounds ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 1,2,4-Trichlorobenzene NA ND 1 10 50 ng/dry g
1,2-Dichlorobenzene NA ND 1 10 50 ng/dry g
1,3-Dichlorobenzene NA ND 1 10 50 ng/dry g
1,4-Dichlorobenzene NA ND 1 10 50 ng/dry g
2,4-Dinitrotoluene NA ND 1 50 100 ng/dry g
2,6-Dinitrotoluene NA ND 1 50 100 ng/dry g
2-Chloronaphthalene NA ND 1 50 100 ng/dry g
2-Nitroaniline NA ND 1 50 100 ng/dry g
3,3'-Dichlorobenzidine NA ND 1 50 100 ng/dry g
3-Nitroaniline NA ND 1 50 100 ng/dry g
4-Bromophenylphenyl ether NA ND 1 50 100 ng/dry g
4-Chlorophenylphenyl ether NA ND 1 50 100 ng/dry g
4-Nitroaniline NA ND 1 50 100 ng/dry g
Azobenzene NA ND 1 50 100 ng/dry g
Benzidine NA ND 1 50 100 ng/dry g
Benzylbutyl Phthalate NA 233 1 10 20 ng/dry g
Bis(2-Chloroethoxy) methane NA ND 1 50 100 ng/dry g
Bis(2-Chloroethyl) ether NA ND 1 50 100 ng/dry g
Bis(2-Chloroisopropyl) ether NA ND 1 50 100 ng/dry g
Bis(2-Ethylhexyl) Phthalate NA 68.7 1 10 20 ng/dry g
Dibutyl Phthalate NA 79.2 1 10 20 ng/dry g
Diethyl Phthalate NA 46.3 1 10 20 ng/dry g
Dimethyl Phthalate NA ND 1 10 20 ng/dry g
qcb - 7 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Di-n-octyl Phthalate NA ND 1 10 20 ng/dry g
Hexachlorobutadiene NA ND 1 50 100 ng/dry g
Hexachlorocyclopentadiene NA ND 1 50 100 ng/dry g
Hexachloroethane NA ND 1 50 100 ng/dry g
Isophorone NA ND 1 50 100 ng/dry g
Nitrobenzene NA ND 1 50 100 ng/dry g
N-Nitrosodimethylamine NA ND 1 50 100 ng/dry g
N-Nitrosodi-n-propylamine NA ND 1 50 100 ng/dry g
N-Nitrosodiphenylamine NA ND 1 50 100 ng/dry g
Pyridine NA ND 1 50 100 ng/dry g
qcb - 8 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 1,2,4-Trichlorobenzene NA 665 1 10 50 ng/dry g 1000 0 67 50 - 150% PASS 1,2-Dichlorobenzene NA 597 1 10 50 ng/dry g 1000 0 60 50 - 150% PASS 1,3-Dichlorobenzene NA 566 1 10 50 ng/dry g 1000 0 57 50 - 150% PASS 1,4-Dichlorobenzene NA 570 1 10 50 ng/dry g 1000 0 57 50 - 150% PASS 2,4-Dinitrotoluene NA 1290 1 50 100 ng/dry g 1000 0 129 50 - 150% PASS 2,6-Dinitrotoluene NA 1170 1 50 100 ng/dry g 1000 0 117 50 - 150% PASS 2-Chloronaphthalene NA 737 1 50 100 ng/dry g 1000 0 74 50 - 150% PASS 2-Nitroaniline NA 1300 1 50 100 ng/dry g 2000 0 65 0 - 125% PASS 3,3'-Dichlorobenzidine NA 410 1 50 100 ng/dry g 1000 0 41 0 - 125% PASS 3-Nitroaniline NA 892 1 50 100 ng/dry g 1000 0 89 0 - 125% PASS 4-Bromophenylphenyl ether NA 937 1 50 100 ng/dry g 1000 0 94 50 - 150% PASS 4-Chlorophenylphenyl ether NA 840 1 50 100 ng/dry g 1000 0 84 50 - 150% PASS 4-Nitroaniline NA 953 1 50 100 ng/dry g 1000 0 95 0 - 125% PASS Azobenzene NA 785 1 50 100 ng/dry g 1000 0 79 50 - 150% PASS Benzidine NA 737 1 50 100 ng/dry g 1000 0 74 0 - 125% PASS Benzylbutyl Phthalate NA 1470 1 10 20 ng/dry g 1000 233 124 50 - 150% PASS Bis(2-Chloroethoxy) methane NA 723 1 50 100 ng/dry g 1000 0 72 50 - 150% PASS Bis(2-Chloroethyl) ether NA 677 1 50 100 ng/dry g 1000 0 68 50 - 150% PASS Bis(2-Chloroisopropyl) ether NA 678 1 50 100 ng/dry g 1000 0 68 50 - 150% PASS Bis(2-Ethylhexyl) Phthalate NA 1140 1 10 20 ng/dry g 1000 68.7 107 50 - 150% PASS Dibutyl Phthalate NA 837 1 10 20 ng/dry g 1000 79.2 76 50 - 150% PASS Diethyl Phthalate NA 1030 1 10 20 ng/dry g 1000 46.3 98 50 - 150% PASS Dimethyl Phthalate NA 896 1 10 20 ng/dry g 1000 0 90 50 - 150% PASS qcb - 9 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Di-n-octyl Phthalate NA 865 1 10 20 ng/dry g 1000 0 87 50 - 150% PASS Hexachlorobutadiene NA 743 1 50 100 ng/dry g 1000 0 74 50 - 150% PASS Hexachlorocyclopentadiene NA 651 1 50 100 ng/dry g 1000 0 65 50 - 150% PASS Hexachloroethane NA 649 1 50 100 ng/dry g 1000 0 65 50 - 150% PASS Isophorone NA 949 1 50 100 ng/dry g 1000 0 95 50 - 150% PASS Nitrobenzene NA 711 1 50 100 ng/dry g 1000 0 71 50 - 150% PASS N-Nitrosodimethylamine NA 1170 1 50 100 ng/dry g 1000 0 117 50 - 150% PASS N-Nitrosodi-n-propylamine NA 796 1 50 100 ng/dry g 1000 0 80 50 - 150% PASS N-Nitrosodiphenylamine NA 526 1 50 100 ng/dry g 1000 0 53 50 - 150% PASS Pyridine NA 1480 1 50 100 ng/dry g 1000 0 148 50 - 150% PASS qcb - 10 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 1,2,4-Trichlorobenzene NA 711 1 10 50 ng/dry g 1000 0 71 50 - 150% PASS 7 30 PASS 1,2-Dichlorobenzene NA 654 1 10 50 ng/dry g 1000 0 65 50 - 150% PASS 8 30 PASS 1,3-Dichlorobenzene NA 637 1 10 50 ng/dry g 1000 0 64 50 - 150% PASS 12 30 PASS 1,4-Dichlorobenzene NA 639 1 10 50 ng/dry g 1000 0 64 50 - 150% PASS 12 30 PASS 2,4-Dinitrotoluene NA 1230 1 50 100 ng/dry g 1000 0 123 50 - 150% PASS 5 30 PASS 2,6-Dinitrotoluene NA 1160 1 50 100 ng/dry g 1000 0 116 50 - 150% PASS 1 30 PASS 2-Chloronaphthalene NA 759 1 50 100 ng/dry g 1000 0 76 50 - 150% PASS 3 30 PASS 2-Nitroaniline NA 1260 1 50 100 ng/dry g 2000 0 63 0 - 125% PASS 3 30 PASS 3,3'-Dichlorobenzidine NA 420 1 50 100 ng/dry g 1000 0 42 0 - 125% PASS 2 30 PASS 3-Nitroaniline NA 777 1 50 100 ng/dry g 1000 0 78 0 - 125% PASS 13 30 PASS 4-Bromophenylphenyl ether NA 933 1 50 100 ng/dry g 1000 0 93 50 - 150% PASS 1 30 PASS 4-Chlorophenylphenyl ether NA 840 1 50 100 ng/dry g 1000 0 84 50 - 150% PASS 0 30 PASS 4-Nitroaniline NA 807 1 50 100 ng/dry g 1000 0 81 0 - 125% PASS 16 30 PASS Azobenzene NA 710 1 50 100 ng/dry g 1000 0 71 50 - 150% PASS 9 30 PASS Benzidine NA 649 1 50 100 ng/dry g 1000 0 65 0 - 125% PASS 13 30 PASS Benzylbutyl Phthalate NA 1530 1 10 20 ng/dry g 1000 233 130 50 - 150% PASS 5 30 PASS Bis(2-Chloroethoxy) methane NA 761 1 50 100 ng/dry g 1000 0 76 50 - 150% PASS 5 30 PASS Bis(2-Chloroethyl) ether NA 678 1 50 100 ng/dry g 1000 0 68 50 - 150% PASS 0 30 PASS Bis(2-Chloroisopropyl) ether NA 735 1 50 100 ng/dry g 1000 0 74 50 - 150% PASS 8 30 PASS Bis(2-Ethylhexyl) Phthalate NA 1120 1 10 20 ng/dry g 1000 68.7 105 50 - 150% PASS 2 30 PASS Dibutyl Phthalate NA 960 1 10 20 ng/dry g 1000 79.2 88 50 - 150% PASS 15 30 PASS Diethyl Phthalate NA 1040 1 10 20 ng/dry g 1000 46.3 99 50 - 150% PASS 1 30 PASS Dimethyl Phthalate NA 916 1 10 20 ng/dry g 1000 0 92 50 - 150% PASS 2 30 PASS qcb - 11 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Di-n-octyl Phthalate NA 883 1 10 20 ng/dry g 1000 0 88 50 - 150% PASS 2 30 PASS Hexachlorobutadiene NA 764 1 50 100 ng/dry g 1000 0 76 50 - 150% PASS 3 30 PASS Hexachlorocyclopentadiene NA 643 1 50 100 ng/dry g 1000 0 64 50 - 150% PASS 2 30 PASS Hexachloroethane NA 714 1 50 100 ng/dry g 1000 0 71 50 - 150% PASS 9 30 PASS Isophorone NA 993 1 50 100 ng/dry g 1000 0 99 50 - 150% PASS 4 30 PASS Nitrobenzene NA 767 1 50 100 ng/dry g 1000 0 77 50 - 150% PASS 8 30 PASS N-Nitrosodimethylamine NA 1100 1 50 100 ng/dry g 1000 0 110 50 - 150% PASS 6 30 PASS N-Nitrosodi-n-propylamine NA 835 1 50 100 ng/dry g 1000 0 83 50 - 150% PASS 5 30 PASS N-Nitrosodiphenylamine NA 603 1 50 100 ng/dry g 1000 0 60 50 - 150% PASS 12 30 PASS Pyridine NA 1500 1 50 100 ng/dry g 1000 0 150 50 - 150% PASS 1 30 PASS qcb - 12 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 1,2,4-Trichlorobenzene NA 496 1 10 50 ng/dry g 1000 0 50 50 - 150% PASS 1,2-Dichlorobenzene NA 592 1 10 50 ng/dry g 1000 0 59 50 - 150% PASS 1,3-Dichlorobenzene NA 675 1 10 50 ng/dry g 1000 0 68 50 - 150% PASS 1,4-Dichlorobenzene NA 690 1 10 50 ng/dry g 1000 0 69 50 - 150% PASS 2,4-Dinitrotoluene NA 1190 1 50 100 ng/dry g 1000 0 119 50 - 150% PASS 2,6-Dinitrotoluene NA 1210 1 50 100 ng/dry g 1000 0 121 50 - 150% PASS 2-Chloronaphthalene NA 651 1 50 100 ng/dry g 1000 0 65 50 - 150% PASS 2-Nitroaniline NA 917 1 50 100 ng/dry g 1000 0 92 0 - 125% PASS 3,3'-Dichlorobenzidine NA 317 1 50 100 ng/dry g 1000 0 32 0 - 125% PASS 3-Nitroaniline NA 271 1 50 100 ng/dry g 1000 0 27 0 - 125% PASS 4-Bromophenylphenyl ether NA 915 1 50 100 ng/dry g 1000 0 92 50 - 150% PASS 4-Chlorophenylphenyl ether NA 776 1 50 100 ng/dry g 1000 0 78 50 - 150% PASS 4-Nitroaniline NA 239 1 50 100 ng/dry g 1000 0 24 0 - 125% PASS Azobenzene NA 807 1 50 100 ng/dry g 1000 0 81 50 - 150% PASS Benzidine NA 706 1 50 100 ng/dry g 1000 0 71 0 - 125% PASS Benzylbutyl Phthalate NA 1060 1 10 20 ng/dry g 1000 76.2 98 50 - 150% PASS Bis(2-Chloroethoxy) methane NA 571 1 50 100 ng/dry g 1000 0 57 50 - 150% PASS Bis(2-Chloroethyl) ether NA 522 1 50 100 ng/dry g 1000 0 52 50 - 150% PASS Bis(2-Chloroisopropyl) ether NA 565 1 50 100 ng/dry g 1000 0 56 50 - 150% PASS Bis(2-Ethylhexyl) Phthalate NA 1470 1 10 20 ng/dry g 1000 437 103 50 - 150% PASS Dibutyl Phthalate NA 1170 1 10 20 ng/dry g 1000 35 113 50 - 150% PASS Diethyl Phthalate NA 987 1 10 20 ng/dry g 1000 0 99 50 - 150% PASS Dimethyl Phthalate NA 835 1 10 20 ng/dry g 1000 0 83 50 - 150% PASS qcb - 13 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Di-n-octyl Phthalate NA 879 1 10 20 ng/dry g 1000 0 88 50 - 150% PASS Hexachlorobutadiene NA 698 1 50 100 ng/dry g 1000 0 70 50 - 150% PASS Hexachlorocyclopentadiene NA 210 1 50 100 ng/dry g 1000 0 21 50 - 150% FAIL M Hexachloroethane NA 518 1 50 100 ng/dry g 1000 0 52 50 - 150% PASS Isophorone NA 736 1 50 100 ng/dry g 1000 0 74 50 - 150% PASS Nitrobenzene NA 555 1 50 100 ng/dry g 1000 0 56 50 - 150% PASS N-Nitrosodimethylamine NA 904 1 50 100 ng/dry g 1000 0 90 50 - 150% PASS N-Nitrosodi-n-propylamine NA 616 1 50 100 ng/dry g 1000 0 62 50 - 150% PASS N-Nitrosodiphenylamine NA 106 1 50 100 ng/dry g 1000 0 11 50 - 150% FAIL M Pyridine NA 1240 1 50 100 ng/dry g 1000 0 124 50 - 150% PASS qcb - 14 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 1,2,4-Trichlorobenzene NA 607 1 10 50 ng/dry g 1000 0 61 50 - 150% PASS 20 30 PASS 1,2-Dichlorobenzene NA 590 1 10 50 ng/dry g 1000 0 59 50 - 150% PASS 0 30 PASS 1,3-Dichlorobenzene NA 673 1 10 50 ng/dry g 1000 0 67 50 - 150% PASS 1 30 PASS 1,4-Dichlorobenzene NA 686 1 10 50 ng/dry g 1000 0 69 50 - 150% PASS 0 30 PASS 2,4-Dinitrotoluene NA 1120 1 50 100 ng/dry g 1000 0 112 50 - 150% PASS 6 30 PASS 2,6-Dinitrotoluene NA 1310 1 50 100 ng/dry g 1000 0 131 50 - 150% PASS 8 30 PASS 2-Chloronaphthalene NA 766 1 50 100 ng/dry g 1000 0 77 50 - 150% PASS 17 30 PASS 2-Nitroaniline NA 876 1 50 100 ng/dry g 1000 0 88 0 - 125% PASS 4 30 PASS 3,3'-Dichlorobenzidine NA 330 1 50 100 ng/dry g 1000 0 33 0 - 125% PASS 3 30 PASS 3-Nitroaniline NA 290 1 50 100 ng/dry g 1000 0 29 0 - 125% PASS 7 30 PASS 4-Bromophenylphenyl ether NA 996 1 50 100 ng/dry g 1000 0 100 50 - 150% PASS 8 30 PASS 4-Chlorophenylphenyl ether NA 874 1 50 100 ng/dry g 1000 0 87 50 - 150% PASS 11 30 PASS 4-Nitroaniline NA 268 1 50 100 ng/dry g 1000 0 27 0 - 125% PASS 12 30 PASS Azobenzene NA 926 1 50 100 ng/dry g 1000 0 93 50 - 150% PASS 14 30 PASS Benzidine NA 751 1 50 100 ng/dry g 1000 0 75 0 - 125% PASS 5 30 PASS Benzylbutyl Phthalate NA 1020 1 10 20 ng/dry g 1000 76.2 94 50 - 150% PASS 4 30 PASS Bis(2-Chloroethoxy) methane NA 698 1 50 100 ng/dry g 1000 0 70 50 - 150% PASS 20 30 PASS Bis(2-Chloroethyl) ether NA 514 1 50 100 ng/dry g 1000 0 51 50 - 150% PASS 2 30 PASS Bis(2-Chloroisopropyl) ether NA 571 1 50 100 ng/dry g 1000 0 57 50 - 150% PASS 2 30 PASS Bis(2-Ethylhexyl) Phthalate NA 1520 1 10 20 ng/dry g 1000 437 108 50 - 150% PASS 5 30 PASS Dibutyl Phthalate NA 1010 1 10 20 ng/dry g 1000 35 98 50 - 150% PASS 15 30 PASS Diethyl Phthalate NA 1070 1 10 20 ng/dry g 1000 0 107 50 - 150% PASS 8 30 PASS Dimethyl Phthalate NA 908 1 10 20 ng/dry g 1000 0 91 50 - 150% PASS 8 30 PASS qcb - 15 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Di-n-octyl Phthalate NA 856 1 10 20 ng/dry g 1000 0 86 50 - 150% PASS 2 30 PASS Hexachlorobutadiene NA 711 1 50 100 ng/dry g 1000 0 71 50 - 150% PASS 1 30 PASS Hexachlorocyclopentadiene NA 214 1 50 100 ng/dry g 1000 0 21 50 - 150% FAIL 0 30 PASS M Hexachloroethane NA 513 1 50 100 ng/dry g 1000 0 51 50 - 150% PASS 2 30 PASS Isophorone NA 850 1 50 100 ng/dry g 1000 0 85 50 - 150% PASS 14 30 PASS Nitrobenzene NA 687 1 50 100 ng/dry g 1000 0 69 50 - 150% PASS 21 30 PASS N-Nitrosodimethylamine NA 1160 1 50 100 ng/dry g 1000 0 116 50 - 150% PASS 25 30 PASS N-Nitrosodi-n-propylamine NA 749 1 50 100 ng/dry g 1000 0 75 50 - 150% PASS 19 30 PASS N-Nitrosodiphenylamine NA 152 1 50 100 ng/dry g 1000 0 15 50 - 150% FAIL 31 30 FAIL M Pyridine NA 1400 1 50 100 ng/dry g 1000 0 140 50 - 150% PASS 12 30 PASS qcb - 16 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 1,2,4-Trichlorobenzene NA ND 1 10 50 ng/dry g 0 30 PASS 1,2-Dichlorobenzene NA ND 1 10 50 ng/dry g 0 30 PASS
1,3-Dichlorobenzene NA ND 1 10 50 ng/dry g 0 30 PASS
1,4-Dichlorobenzene NA ND 1 10 50 ng/dry g 0 30 PASS
2,4-Dinitrotoluene NA ND 1 50 100 ng/dry g 0 30 PASS
2,6-Dinitrotoluene NA ND 1 50 100 ng/dry g 0 30 PASS
2-Chloronaphthalene NA ND 1 50 100 ng/dry g 0 30 PASS
2-Nitroaniline NA ND 1 50 100 ng/dry g 0 30 PASS
3,3'-Dichlorobenzidine NA ND 1 50 100 ng/dry g 0 30 PASS 3-Nitroaniline NA ND 1 50 100 ng/dry g 0 30 PASS
4-Bromophenylphenyl ether NA ND 1 50 100 ng/dry g 0 30 PASS 4-Chlorophenylphenyl ether NA ND 1 50 100 ng/dry g 0 30 PASS 4-Nitroaniline NA ND 1 50 100 ng/dry g 0 30 PASS
Azobenzene NA ND 1 50 100 ng/dry g 0 30 PASS
Benzidine NA ND 1 50 100 ng/dry g 0 30 PASS
Benzylbutyl Phthalate NA 54.3 1 10 20 ng/dry g 34 30 FAIL SL,B Bis(2-Chloroethoxy) methane NA ND 1 50 100 ng/dry g 0 30 PASS Bis(2-Chloroethyl) ether NA ND 1 50 100 ng/dry g 0 30 PASS Bis(2-Chloroisopropyl) ether NA ND 1 50 100 ng/dry g 0 30 PASS Bis(2-Ethylhexyl) Phthalate NA 404 1 10 20 ng/dry g 8 30 PASS Dibutyl Phthalate NA 37.8 1 10 20 ng/dry g 8 30 PASS
Diethyl Phthalate NA ND 1 10 20 ng/dry g 0 30 PASS
Dimethyl Phthalate NA ND 1 10 20 ng/dry g 0 30 PASS
qcb - 17 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Di-n-octyl Phthalate NA ND 1 10 20 ng/dry g 0 30 PASS
Hexachlorobutadiene NA ND 1 50 100 ng/dry g 0 30 PASS
Hexachlorocyclopentadiene NA ND 1 50 100 ng/dry g 0 30 PASS Hexachloroethane NA ND 1 50 100 ng/dry g 0 30 PASS
Isophorone NA ND 1 50 100 ng/dry g 0 30 PASS
Nitrobenzene NA ND 1 50 100 ng/dry g 0 30 PASS
N-Nitrosodimethylamine NA ND 1 50 100 ng/dry g 0 30 PASS N-Nitrosodi-n-propylamine NA ND 1 50 100 ng/dry g 0 30 PASS N-Nitrosodiphenylamine NA ND 1 50 100 ng/dry g 0 30 PASS Pyridine NA ND 1 50 100 ng/dry g 0 30 PASS
qcb - 18 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Chlorinated Pesticides
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (PCB030) NA 73 1 % Recovery 100 73 55 - 120% PASS
(PCB112) NA 73 1 % Recovery 100 73 62 - 128% PASS
(PCB198) NA 100 1 % Recovery 100 100 68 - 128% PASS
(TCMX) NA 70 1 % Recovery 100 70 44 - 118% PASS
2,4'-DDD NA ND 1 0.267 0.5 ng/dry g
2,4'-DDE NA ND 1 0.2 0.5 ng/dry g
2,4'-DDT NA ND 1 0.194 0.5 ng/dry g
4,4'-DDD NA ND 1 0.198 0.5 ng/dry g
4,4'-DDE NA ND 1 0.193 0.5 ng/dry g
4,4'-DDT NA ND 1 0.128 0.5 ng/dry g
Aldrin NA ND 1 0.25 0.5 ng/dry g
BHC-alpha NA ND 1 0.25 0.5 ng/dry g
BHC-beta NA ND 1 0.25 0.5 ng/dry g
BHC-delta NA ND 1 0.25 0.5 ng/dry g
BHC-gamma NA ND 1 0.25 0.5 ng/dry g
Chlordane-alpha NA ND 1 0.187 0.5 ng/dry g
Chlordane-gamma NA ND 1 0.179 0.5 ng/dry g
cis-Nonachlor NA ND 1 0.192 0.5 ng/dry g
Dieldrin NA ND 1 0.1 0.2 ng/dry g
Endosulfan Sulfate NA ND 1 0.25 0.5 ng/dry g
Endosulfan-I NA ND 1 0.25 0.5 ng/dry g
Endosulfan-II NA ND 1 0.25 0.5 ng/dry g
Endrin NA ND 1 0.25 0.5 ng/dry g
qcb - 19 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Endrin Aldehyde NA ND 1 0.25 0.5 ng/dry g
Endrin Ketone NA ND 1 0.25 0.5 ng/dry g
Heptachlor NA ND 1 0.25 0.5 ng/dry g
Heptachlor Epoxide NA ND 1 0.25 0.5 ng/dry g
Hexachlorobenzene NA ND 1 0.25 0.5 ng/dry g
Kepone NA ND 1 0.193 0.5 ng/dry g
Methoxychlor NA ND 1 0.25 0.5 ng/dry g
Mirex NA ND 1 0.25 0.5 ng/dry g
Oxychlordane NA ND 1 0.25 0.5 ng/dry g
trans-Nonachlor NA ND 1 0.186 0.5 ng/dry g
Method: EPA 8270E-NCI Batch ID: O-34030 Prepared: 09-Feb-22 Analyzed: 10-Feb-22 Toxaphene NA ND 1 10 20 ng/dry g
qcb - 20 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (PCB030) NA 75 1 % Recovery 100 0 75 55 - 120% PASS
(PCB112) NA 77 1 % Recovery 100 0 77 62 - 128% PASS
(PCB198) NA 105 1 % Recovery 100 0 105 68 - 128% PASS
(TCMX) NA 48 1 % Recovery 100 0 48 44 - 118% PASS
2,4'-DDD NA 488 1 0.267 0.5 ng/dry g 500 0 98 66 - 123% PASS 2,4'-DDE NA 385 1 0.2 0.5 ng/dry g 500 0 77 66 - 116% PASS 2,4'-DDT NA 575 1 0.194 0.5 ng/dry g 500 0 115 61 - 138% PASS 4,4'-DDD NA 464 1 0.198 0.5 ng/dry g 500 0 93 59 - 140% PASS 4,4'-DDE NA 410 1 0.193 0.5 ng/dry g 500 0 82 67 - 117% PASS 4,4'-DDT NA 559 1 0.128 0.5 ng/dry g 500 0 112 56 - 173% PASS Aldrin NA 315 1 0.25 0.5 ng/dry g 500 0 63 66 - 120% FAIL R BHC-alpha NA 329 1 0.25 0.5 ng/dry g 500 0 66 55 - 113% PASS BHC-beta NA 356 1 0.25 0.5 ng/dry g 500 0 71 59 - 123% PASS BHC-delta NA 559 1 0.25 0.5 ng/dry g 500 0 112 59 - 116% PASS BHC-gamma NA 393 1 0.25 0.5 ng/dry g 500 0 79 61 - 112% PASS Chlordane-alpha NA 386 1 0.187 0.5 ng/dry g 500 0 77 63 - 111% PASS Chlordane-gamma NA 407 1 0.179 0.5 ng/dry g 500 0 81 68 - 117% PASS cis-Nonachlor NA 416 1 0.192 0.5 ng/dry g 500 0 83 63 - 110% PASS Dieldrin NA 351 1 0.1 0.2 ng/dry g 500 0 70 59 - 121% PASS Endosulfan Sulfate NA 356 1 0.25 0.5 ng/dry g 500 0 71 48 - 135% PASS Endosulfan-I NA 478 1 0.25 0.5 ng/dry g 500 0 96 0 - 127% PASS Endosulfan-II NA 438 1 0.25 0.5 ng/dry g 500 0 88 0 - 105% PASS Endrin NA 462 1 0.25 0.5 ng/dry g 500 0 92 43 - 155% PASS qcb - 21 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Endrin Aldehyde NA 549 1 0.25 0.5 ng/dry g 500 0 110 0 - 135% PASS Endrin Ketone NA 606 1 0.25 0.5 ng/dry g 500 0 121 43 - 152% PASS Heptachlor NA 467 1 0.25 0.5 ng/dry g 500 0 93 41 - 146% PASS Heptachlor Epoxide NA 482 1 0.25 0.5 ng/dry g 500 0 96 58 - 126% PASS Hexachlorobenzene NA 538 1 0.25 0.5 ng/dry g 500 0 108 48 - 115% PASS Methoxychlor NA 424 1 0.25 0.5 ng/dry g 500 0 85 47 - 210% PASS Mirex NA 411 1 0.25 0.5 ng/dry g 500 0 82 65 - 114% PASS Oxychlordane NA 347 1 0.25 0.5 ng/dry g 500 0 69 60 - 118% PASS trans-Nonachlor NA 382 1 0.186 0.5 ng/dry g 500 0 76 64 - 111% PASS Method: EPA 8270E-NCI Batch ID: O-34030 Prepared: 09-Feb-22 Analyzed: 10-Feb-22 Toxaphene NA 11000 1 10 20 ng/dry g 10000 0 110 70 - 128% PASS qcb - 22 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (PCB030) NA 78 1 % Recovery 100 0 78 55 - 120% PASS 4 30 PASS (PCB112) NA 78 1 % Recovery 100 0 78 62 - 128% PASS 1 30 PASS (PCB198) NA 100 1 % Recovery 100 0 100 68 - 128% PASS 5 30 PASS (TCMX) NA 51 1 % Recovery 100 0 51 44 - 118% PASS 6 30 PASS 2,4'-DDD NA 465 1 0.267 0.5 ng/dry g 500 0 93 66 - 123% PASS 5 30 PASS 2,4'-DDE NA 376 1 0.2 0.5 ng/dry g 500 0 75 66 - 116% PASS 3 30 PASS 2,4'-DDT NA 559 1 0.194 0.5 ng/dry g 500 0 112 61 - 138% PASS 3 30 PASS 4,4'-DDD NA 425 1 0.198 0.5 ng/dry g 500 0 85 59 - 140% PASS 9 30 PASS 4,4'-DDE NA 396 1 0.193 0.5 ng/dry g 500 0 79 67 - 117% PASS 4 30 PASS 4,4'-DDT NA 518 1 0.128 0.5 ng/dry g 500 0 104 56 - 173% PASS 7 30 PASS Aldrin NA 328 1 0.25 0.5 ng/dry g 500 0 66 66 - 120% PASS 5 30 PASS BHC-alpha NA 345 1 0.25 0.5 ng/dry g 500 0 69 55 - 113% PASS 4 30 PASS BHC-beta NA 362 1 0.25 0.5 ng/dry g 500 0 72 59 - 123% PASS 1 30 PASS BHC-delta NA 575 1 0.25 0.5 ng/dry g 500 0 115 59 - 116% PASS 3 30 PASS BHC-gamma NA 406 1 0.25 0.5 ng/dry g 500 0 81 61 - 112% PASS 2 30 PASS Chlordane-alpha NA 375 1 0.187 0.5 ng/dry g 500 0 75 63 - 111% PASS 3 30 PASS Chlordane-gamma NA 395 1 0.179 0.5 ng/dry g 500 0 79 68 - 117% PASS 2 30 PASS cis-Nonachlor NA 389 1 0.192 0.5 ng/dry g 500 0 78 63 - 110% PASS 6 30 PASS Dieldrin NA 356 1 0.1 0.2 ng/dry g 500 0 71 59 - 121% PASS 1 30 PASS Endosulfan Sulfate NA 326 1 0.25 0.5 ng/dry g 500 0 65 48 - 135% PASS 9 30 PASS Endosulfan-I NA 469 1 0.25 0.5 ng/dry g 500 0 94 0 - 127% PASS 2 30 PASS Endosulfan-II NA 441 1 0.25 0.5 ng/dry g 500 0 88 0 - 105% PASS 0 30 PASS Endrin NA 444 1 0.25 0.5 ng/dry g 500 0 89 43 - 155% PASS 3 30 PASS qcb - 23 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Endrin Aldehyde NA 571 1 0.25 0.5 ng/dry g 500 0 114 0 - 135% PASS 4 30 PASS Endrin Ketone NA 562 1 0.25 0.5 ng/dry g 500 0 112 43 - 152% PASS 8 30 PASS Heptachlor NA 479 1 0.25 0.5 ng/dry g 500 0 96 41 - 146% PASS 3 30 PASS Heptachlor Epoxide NA 484 1 0.25 0.5 ng/dry g 500 0 97 58 - 126% PASS 1 30 PASS Hexachlorobenzene NA 566 1 0.25 0.5 ng/dry g 500 0 113 48 - 115% PASS 5 30 PASS Methoxychlor NA 456 1 0.25 0.5 ng/dry g 500 0 91 47 - 210% PASS 7 30 PASS Mirex NA 408 1 0.25 0.5 ng/dry g 500 0 82 65 - 114% PASS 0 30 PASS Oxychlordane NA 325 1 0.25 0.5 ng/dry g 500 0 65 60 - 118% PASS 6 30 PASS trans-Nonachlor NA 381 1 0.186 0.5 ng/dry g 500 0 76 64 - 111% PASS 0 30 PASS Method: EPA 8270E-NCI Batch ID: O-34030 Prepared: 09-Feb-22 Analyzed: 10-Feb-22 Toxaphene NA 10900 1 10 20 ng/dry g 10000 0 109 70 - 128% PASS 1 30 PASS qcb - 24 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94868-CRM1 QAQC CRM - SRM 1944 Matrix: Sediment Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (PCB030) NA 70 1 % Recovery 100 70 33 - 149% PASS
(PCB112) NA 74 1 % Recovery 100 74 49 - 120% PASS
(PCB198) NA 99 1 % Recovery 100 99 35 - 123% PASS
(TCMX) NA 49 1 % Recovery 100 49 37 - 138% PASS
2,4'-DDD NA 29.1 1 0.267 0.5 ng/dry g 38 77 44 - 157% PASS 2,4'-DDE NA 17.9 1 0.2 0.5 ng/dry g 19 94 54 - 157% PASS 4,4'-DDD NA 120 1 0.198 0.5 ng/dry g 108 111 41 - 153% PASS 4,4'-DDE NA 85.8 1 0.193 0.5 ng/dry g 86 100 57 - 152% PASS 4,4'-DDT NA 156 1 0.128 0.5 ng/dry g 170 92 23 - 144% PASS Chlordane-alpha NA 14.3 1 0.187 0.5 ng/dry g 16.5 87 61 - 161% PASS Chlordane-gamma NA 23.9 1 0.179 0.5 ng/dry g 19 126 69 - 163% PASS cis-Nonachlor NA 3.22 1 0.192 0.5 ng/dry g 3.7 87 59 - 175% PASS Hexachlorobenzene NA 4.77 1 0.25 0.5 ng/dry g 6 80 40 - 157% PASS trans-Nonachlor NA 8.79 1 0.186 0.5 ng/dry g 8.2 107 72 - 170% PASS qcb - 25 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (PCB030) NA 68 1 % Recovery 100 0 68 24 - 118% PASS
(PCB112) NA 79 1 % Recovery 100 0 79 34 - 121% PASS
(PCB198) NA 98 1 % Recovery 100 0 98 37 - 125% PASS
(TCMX) NA 40 1 % Recovery 100 0 40 22 - 117% PASS
2,4'-DDD NA 520 1 0.267 0.5 ng/dry g 500 4.79 103 69 - 125% PASS 2,4'-DDE NA 369 1 0.2 0.5 ng/dry g 500 0.22 74 67 - 117% PASS 2,4'-DDT NA 504 1 0.194 0.5 ng/dry g 500 1.26 101 34 - 145% PASS 4,4'-DDD NA 468 1 0.198 0.5 ng/dry g 500 3.31 93 67 - 141% PASS 4,4'-DDE NA 553 1 0.193 0.5 ng/dry g 500 15.1 108 38 - 152% PASS 4,4'-DDT NA 531 1 0.128 0.5 ng/dry g 500 16.1 103 29 - 167% PASS Aldrin NA 326 1 0.25 0.5 ng/dry g 500 0 65 40 - 135% PASS BHC-alpha NA 365 1 0.25 0.5 ng/dry g 500 0 73 59 - 117% PASS BHC-beta NA 408 1 0.25 0.5 ng/dry g 500 0 82 37 - 141% PASS BHC-delta NA 573 1 0.25 0.5 ng/dry g 500 0 115 65 - 112% FAIL M BHC-gamma NA 424 1 0.25 0.5 ng/dry g 500 0 85 48 - 136% PASS Chlordane-alpha NA 375 1 0.187 0.5 ng/dry g 500 2.73 74 68 - 114% PASS Chlordane-gamma NA 397 1 0.179 0.5 ng/dry g 500 0 79 73 - 116% PASS cis-Nonachlor NA 380 1 0.192 0.5 ng/dry g 500 0 76 70 - 113% PASS Dieldrin NA 424 1 0.1 0.2 ng/dry g 500 0 85 48 - 120% PASS Endosulfan Sulfate NA 394 1 0.25 0.5 ng/dry g 500 0 79 34 - 141% PASS Endosulfan-I NA 457 1 0.25 0.5 ng/dry g 500 0 91 21 - 114% PASS Endosulfan-II NA 350 1 0.25 0.5 ng/dry g 500 0 70 47 - 117% PASS Endrin NA 393 1 0.25 0.5 ng/dry g 500 0 79 31 - 154% PASS qcb - 26 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Endrin Aldehyde NA 571 1 0.25 0.5 ng/dry g 500 0 114 0 - 115% PASS Endrin Ketone NA 483 1 0.25 0.5 ng/dry g 500 0 97 15 - 152% PASS Heptachlor NA 289 1 0.25 0.5 ng/dry g 500 0 58 37 - 154% PASS Heptachlor Epoxide NA 442 1 0.25 0.5 ng/dry g 500 0 88 60 - 136% PASS Hexachlorobenzene NA 514 1 0.25 0.5 ng/dry g 500 0 103 60 - 117% PASS Methoxychlor NA 386 1 0.25 0.5 ng/dry g 500 0 77 42 - 128% PASS Mirex NA 326 1 0.25 0.5 ng/dry g 500 0 65 58 - 117% PASS Oxychlordane NA 345 1 0.25 0.5 ng/dry g 500 0 69 64 - 119% PASS trans-Nonachlor NA 371 1 0.186 0.5 ng/dry g 500 2.62 74 67 - 119% PASS Method: EPA 8270E-NCI Batch ID: O-34030 Prepared: 09-Feb-22 Analyzed: 10-Feb-22 Toxaphene NA 599 1 10 20 ng/dry g 764 117 63 50 - 150% PASS qcb - 27 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (PCB030) NA 92 1 % Recovery 100 0 92 24 - 118% PASS 30 30 PASS (PCB112) NA 77 1 % Recovery 100 0 77 34 - 121% PASS 3 30 PASS (PCB198) NA 101 1 % Recovery 100 0 101 37 - 125% PASS 3 30 PASS (TCMX) NA 43 1 % Recovery 100 0 43 22 - 117% PASS 7 30 PASS 2,4'-DDD NA 545 1 0.267 0.5 ng/dry g 500 4.79 108 69 - 125% PASS 5 30 PASS 2,4'-DDE NA 357 1 0.2 0.5 ng/dry g 500 0.22 71 67 - 117% PASS 4 30 PASS 2,4'-DDT NA 438 1 0.194 0.5 ng/dry g 500 1.26 87 34 - 145% PASS 15 30 PASS 4,4'-DDD NA 506 1 0.198 0.5 ng/dry g 500 3.31 101 67 - 141% PASS 8 30 PASS 4,4'-DDE NA 531 1 0.193 0.5 ng/dry g 500 15.1 103 38 - 152% PASS 5 30 PASS 4,4'-DDT NA 531 1 0.128 0.5 ng/dry g 500 16.1 103 29 - 167% PASS 0 30 PASS Aldrin NA 334 1 0.25 0.5 ng/dry g 500 0 67 40 - 135% PASS 3 30 PASS BHC-alpha NA 375 1 0.25 0.5 ng/dry g 500 0 75 59 - 117% PASS 3 30 PASS BHC-beta NA 385 1 0.25 0.5 ng/dry g 500 0 77 37 - 141% PASS 6 30 PASS BHC-delta NA 574 1 0.25 0.5 ng/dry g 500 0 115 65 - 112% FAIL 0 30 PASS M BHC-gamma NA 427 1 0.25 0.5 ng/dry g 500 0 85 48 - 136% PASS 0 30 PASS Chlordane-alpha NA 355 1 0.187 0.5 ng/dry g 500 2.73 70 68 - 114% PASS 6 30 PASS Chlordane-gamma NA 386 1 0.179 0.5 ng/dry g 500 0 77 73 - 116% PASS 3 30 PASS cis-Nonachlor NA 377 1 0.192 0.5 ng/dry g 500 0 75 70 - 113% PASS 1 30 PASS Dieldrin NA 433 1 0.1 0.2 ng/dry g 500 0 87 48 - 120% PASS 2 30 PASS Endosulfan Sulfate NA 394 1 0.25 0.5 ng/dry g 500 0 79 34 - 141% PASS 0 30 PASS Endosulfan-I NA 452 1 0.25 0.5 ng/dry g 500 0 90 21 - 114% PASS 1 30 PASS Endosulfan-II NA 375 1 0.25 0.5 ng/dry g 500 0 75 47 - 117% PASS 7 30 PASS Endrin NA 367 1 0.25 0.5 ng/dry g 500 0 73 31 - 154% PASS 8 30 PASS qcb - 28 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Endrin Aldehyde NA 574 1 0.25 0.5 ng/dry g 500 0 115 0 - 115% PASS 1 30 PASS Endrin Ketone NA 428 1 0.25 0.5 ng/dry g 500 0 86 15 - 152% PASS 12 30 PASS Heptachlor NA 307 1 0.25 0.5 ng/dry g 500 0 61 37 - 154% PASS 5 30 PASS Heptachlor Epoxide NA 430 1 0.25 0.5 ng/dry g 500 0 86 60 - 136% PASS 2 30 PASS Hexachlorobenzene NA 528 1 0.25 0.5 ng/dry g 500 0 106 60 - 117% PASS 3 30 PASS Methoxychlor NA 401 1 0.25 0.5 ng/dry g 500 0 80 42 - 128% PASS 4 30 PASS Mirex NA 315 1 0.25 0.5 ng/dry g 500 0 63 58 - 117% PASS 3 30 PASS Oxychlordane NA 342 1 0.25 0.5 ng/dry g 500 0 68 64 - 119% PASS 1 30 PASS trans-Nonachlor NA 363 1 0.186 0.5 ng/dry g 500 2.62 72 67 - 119% PASS 3 30 PASS Method: EPA 8270E-NCI Batch ID: O-34030 Prepared: 09-Feb-22 Analyzed: 10-Feb-22 Toxaphene NA 588 1 10 20 ng/dry g 759 117 62 50 - 150% PASS 2 30 PASS qcb - 29 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (PCB030) NA 92 1 % Recovery 100 92 24 - 118% PASS 27 30 PASS (PCB112) NA 74 1 % Recovery 100 74 34 - 121% PASS 5 30 PASS (PCB198) NA 104 1 % Recovery 100 104 37 - 125% PASS 1 30 PASS (TCMX) NA 41 1 % Recovery 100 41 22 - 117% PASS 11 30 PASS 2,4'-DDD NA 6.78 1 0.267 0.5 ng/dry g 34 30 FAIL NH
2,4'-DDE NA 0.527 1 0.2 0.5 ng/dry g 82 30 FAIL SL
2,4'-DDT NA 2.25 1 0.194 0.5 ng/dry g 56 30 FAIL SL
4,4'-DDD NA 9.46 1 0.198 0.5 ng/dry g 96 30 FAIL NH
4,4'-DDE NA 45.4 1 0.193 0.5 ng/dry g 100 30 FAIL NH
4,4'-DDT NA 18.6 1 0.128 0.5 ng/dry g 14 30 PASS
Aldrin NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
BHC-alpha NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
BHC-beta NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
BHC-delta NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
BHC-gamma NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Chlordane-alpha NA 2.8 1 0.187 0.5 ng/dry g 3 30 PASS
Chlordane-gamma NA 0.224 1 0.179 0.5 ng/dry g 22 30 PASS J cis-Nonachlor NA ND 1 0.192 0.5 ng/dry g 0 30 PASS
Dieldrin NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
Endosulfan Sulfate NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Endosulfan-I NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Endosulfan-II NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Endrin NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
qcb - 30 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Endrin Aldehyde NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Endrin Ketone NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Heptachlor NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Heptachlor Epoxide NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Hexachlorobenzene NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Kepone NA ND 1 0.193 0.5 ng/dry g 0 30 PASS
Methoxychlor NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Mirex NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
Oxychlordane NA ND 1 0.25 0.5 ng/dry g 0 30 PASS
trans-Nonachlor NA 2.73 1 0.186 0.5 ng/dry g 4 30 PASS
Method: EPA 8270E-NCI Batch ID: O-34030 Prepared: 09-Feb-22 Analyzed: 10-Feb-22 Toxaphene NA 202 1 10 20 ng/dry g 53 30 FAIL NH
qcb - 31 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Elements
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 245.7 Batch ID: E-24154 Prepared: 10-Feb-22 Analyzed: 25-Feb-22 Mercury (Hg) NA ND 1 0.00001 0.00002 µg/dry g
Method: EPA 6020 Batch ID: E-25085 Prepared: 10-Feb-22 Analyzed: 14-Feb-22 Aluminum (Al) NA ND 1 1 5 µg/dry g
Antimony (Sb) NA ND 1 0.025 0.05 µg/dry g
Arsenic (As) NA ND 1 0.025 0.05 µg/dry g
Barium (Ba) NA ND 1 0.025 0.05 µg/dry g
Beryllium (Be) NA ND 1 0.025 0.05 µg/dry g
Cadmium (Cd) NA ND 1 0.0025 0.005 µg/dry g
Chromium (Cr) NA ND 1 0.0025 0.005 µg/dry g
Cobalt (Co) NA ND 1 0.025 0.05 µg/dry g
Copper (Cu) NA ND 1 0.0025 0.005 µg/dry g
Iron (Fe) NA ND 1 1 5 µg/dry g
Lead (Pb) NA ND 1 0.0025 0.005 µg/dry g
Manganese (Mn) NA ND 1 0.005 0.01 µg/dry g
Molybdenum (Mo) NA ND 1 0.025 0.05 µg/dry g
Nickel (Ni) NA ND 1 0.01 0.02 µg/dry g
Selenium (Se) NA ND 1 0.025 0.05 µg/dry g
Silver (Ag) NA ND 1 0.01 0.02 µg/dry g
Thallium (Tl) NA ND 1 0.025 0.05 µg/dry g
Vanadium (V) NA ND 1 0.025 0.05 µg/dry g
Zinc (Zn) NA ND 1 0.025 0.05 µg/dry g
qcb - 32 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 245.7 Batch ID: E-24154 Prepared: 10-Feb-22 Analyzed: 25-Feb-22 Mercury (Hg) NA 0.00107 1 0.00001 0.00002 µg/dry g 0.001 0 107 82 - 118% PASS Method: EPA 6020 Batch ID: E-25085 Prepared: 10-Feb-22 Analyzed: 14-Feb-22 Aluminum (Al) NA 2.04 1 1 5 µg/dry g 2 0 102 85 - 121% PASS Antimony (Sb) NA 2.03 1 0.025 0.05 µg/dry g 2 0 101 84 - 120% PASS Arsenic (As) NA 2.05 1 0.025 0.05 µg/dry g 2 0 102 85 - 115% PASS Barium (Ba) NA 2.07 1 0.025 0.05 µg/dry g 2 0 103 80 - 120% PASS Beryllium (Be) NA 1.97 1 0.025 0.05 µg/dry g 2 0 99 80 - 120% PASS Cadmium (Cd) NA 1.97 1 0.0025 0.005 µg/dry g 2 0 99 86 - 122% PASS Chromium (Cr) NA 2.03 1 0.0025 0.005 µg/dry g 2 0 101 83 - 113% PASS Cobalt (Co) NA 2.04 1 0.025 0.05 µg/dry g 2 0 102 80 - 120% PASS Copper (Cu) NA 2.01 1 0.0025 0.005 µg/dry g 2 0 100 83 - 114% PASS Iron (Fe) NA 2.04 1 1 5 µg/dry g 2 0 102 85 - 115% PASS Lead (Pb) NA 2.05 1 0.0025 0.005 µg/dry g 2 0 102 85 - 118% PASS Manganese (Mn) NA 2 1 0.005 0.01 µg/dry g 2 0 100 87 - 117% PASS Molybdenum (Mo) NA 2.01 1 0.025 0.05 µg/dry g 2 0 100 80 - 120% PASS Nickel (Ni) NA 2.05 1 0.01 0.02 µg/dry g 2 0 102 83 - 113% PASS Selenium (Se) NA 2.04 1 0.025 0.05 µg/dry g 2 0 102 72 - 118% PASS Silver (Ag) NA 0.189 1 0.01 0.02 µg/dry g 0.2 0 94 79 - 118% PASS Thallium (Tl) NA 2.07 1 0.025 0.05 µg/dry g 2 0 103 80 - 120% PASS Vanadium (V) NA 1.81 1 0.025 0.05 µg/dry g 2 0 90 83 - 113% PASS Zinc (Zn) NA 2.04 1 0.025 0.05 µg/dry g 2 0 102 86 - 116% PASS qcb - 33 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 245.7 Batch ID: E-24154 Prepared: 10-Feb-22 Analyzed: 25-Feb-22 Mercury (Hg) NA 0.00106 1 0.00001 0.00002 µg/dry g 0.001 0 106 82 - 118% PASS 1 30 PASS Method: EPA 6020 Batch ID: E-25085 Prepared: 10-Feb-22 Analyzed: 14-Feb-22 Aluminum (Al) NA 2.09 1 1 5 µg/dry g 2 0 104 85 - 121% PASS 2 30 PASS Antimony (Sb) NA 2.02 1 0.025 0.05 µg/dry g 2 0 101 84 - 120% PASS 1 30 PASS Arsenic (As) NA 2.05 1 0.025 0.05 µg/dry g 2 0 102 85 - 115% PASS 0 30 PASS Barium (Ba) NA 2.05 1 0.025 0.05 µg/dry g 2 0 102 80 - 120% PASS 2 30 PASS Beryllium (Be) NA 1.95 1 0.025 0.05 µg/dry g 2 0 98 80 - 120% PASS 0 30 PASS Cadmium (Cd) NA 1.98 1 0.0025 0.005 µg/dry g 2 0 99 86 - 122% PASS 1 30 PASS Chromium (Cr) NA 2.03 1 0.0025 0.005 µg/dry g 2 0 101 83 - 113% PASS 0 30 PASS Cobalt (Co) NA 2.04 1 0.025 0.05 µg/dry g 2 0 102 80 - 120% PASS 0 30 PASS Copper (Cu) NA 2.01 1 0.0025 0.005 µg/dry g 2 0 100 83 - 114% PASS 0 30 PASS Iron (Fe) NA 1.98 1 1 5 µg/dry g 2 0 99 85 - 115% PASS 3 30 PASS Lead (Pb) NA 2.06 1 0.0025 0.005 µg/dry g 2 0 103 85 - 118% PASS 1 30 PASS Manganese (Mn) NA 2 1 0.005 0.01 µg/dry g 2 0 100 87 - 117% PASS 0 30 PASS Molybdenum (Mo) NA 2.02 1 0.025 0.05 µg/dry g 2 0 101 80 - 120% PASS 1 30 PASS Nickel (Ni) NA 2.05 1 0.01 0.02 µg/dry g 2 0 102 83 - 113% PASS 0 30 PASS Selenium (Se) NA 2.05 1 0.025 0.05 µg/dry g 2 0 102 72 - 118% PASS 0 30 PASS Silver (Ag) NA 0.198 1 0.01 0.02 µg/dry g 0.2 0 99 79 - 118% PASS 5 30 PASS Thallium (Tl) NA 2.07 1 0.025 0.05 µg/dry g 2 0 103 80 - 120% PASS 0 30 PASS Vanadium (V) NA 1.81 1 0.025 0.05 µg/dry g 2 0 90 83 - 113% PASS 0 30 PASS Zinc (Zn) NA 2.02 1 0.025 0.05 µg/dry g 2 0 101 86 - 116% PASS 1 30 PASS qcb - 34 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94867-CRM1 QAQC CRM - ERA D099-540 Matrix: Sediment Sampled: Received:

Method: EPA 245.7 Batch ID: E-24154 Prepared: 10-Feb-22 Analyzed: 25-Feb-22 Mercury (Hg) NA 13.7 1 0.00001 0.00002 µg/dry g 12 114 80 - 120% PASS Method: EPA 6020 Batch ID: E-25085 Prepared: 10-Feb-22 Analyzed: 14-Feb-22 Aluminum (Al) NA 11700 1 1 5 µg/dry g 10100 116 80 - 120% PASS Antimony (Sb) NA 139 1 0.025 0.05 µg/dry g 145 96 80 - 120% PASS Arsenic (As) NA 181 1 0.025 0.05 µg/dry g 171 106 80 - 120% PASS Barium (Ba) NA 262 1 0.025 0.05 µg/dry g 272 96 80 - 120% PASS Beryllium (Be) NA 100 1 0.025 0.05 µg/dry g 102 98 80 - 120% PASS Cadmium (Cd) NA 214 1 0.0025 0.005 µg/dry g 225 95 80 - 120% PASS Chromium (Cr) NA 157 1 0.0025 0.005 µg/dry g 144 109 80 - 120% PASS Cobalt (Co) NA 50.6 1 0.025 0.05 µg/dry g 48.8 104 80 - 120% PASS Copper (Cu) NA 174 1 0.0025 0.005 µg/dry g 174 100 80 - 120% PASS Iron (Fe) NA 20700 1 1 5 µg/dry g 15000 138 80 - 120% FAIL 1 Lead (Pb) NA 114 1 0.0025 0.005 µg/dry g 111 103 80 - 120% PASS Manganese (Mn) NA 246 1 0.005 0.01 µg/dry g 232 106 80 - 120% PASS Molybdenum (Mo) NA 123 1 0.025 0.05 µg/dry g 123 100 80 - 120% PASS Nickel (Ni) NA 98.8 1 0.01 0.02 µg/dry g 98.3 101 80 - 120% PASS Selenium (Se) NA 215 1 0.025 0.05 µg/dry g 206 104 80 - 120% PASS Silver (Ag) NA 41.4 1 0.01 0.02 µg/dry g 45.5 91 80 - 120% PASS Thallium (Tl) NA 158 1 0.025 0.05 µg/dry g 167 95 80 - 120% PASS Vanadium (V) NA 71.2 1 0.025 0.05 µg/dry g 61.8 115 80 - 120% PASS Zinc (Zn) NA 215 1 0.025 0.05 µg/dry g 207 104 80 - 120% PASS qcb - 35 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94870-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 245.7 Batch ID: E-24150 Prepared: 15-Jan-22 Analyzed: 15-Jan-22 Mercury (Hg) Total ND 1 0.01 0.02 µg/L
Method: EPA 200.8 Batch ID: E-26078 Prepared: 01-Feb-22 Analyzed: 03-Feb-22 Aluminum (Al) Total ND 1 1.65 8.25 µg/L
Antimony (Sb) Total ND 1 0.03 0.15 µg/L
Arsenic (As) Total ND 1 0.05 0.159 µg/L
Barium (Ba) Total ND 1 0.25 0.5 µg/L
Beryllium (Be) Total ND 1 0.01 0.031 µg/L
Cadmium (Cd) Total ND 1 0.007 0.023 µg/L
Chromium (Cr) Total ND 1 0.01 0.05 µg/L
Cobalt (Co) Total ND 1 0.01 0.05 µg/L
Copper (Cu) Total ND 1 0.007 0.022 µg/L
Iron (Fe) Total ND 1 1.13 5.65 µg/L
Lead (Pb) Total ND 1 0.007 0.021 µg/L
Manganese (Mn) Total ND 1 0.005 0.01 µg/L
Molybdenum (Mo) Total ND 1 0.007 0.022 µg/L
Nickel (Ni) Total ND 1 0.013 0.042 µg/L
Selenium (Se) Total ND 1 0.021 0.068 µg/L
Silver (Ag) Total ND 1 0.01 0.02 µg/L
Strontium (Sr) Total ND 1 0.03 0.15 µg/L
Thallium (Tl) Total ND 1 0.01 0.05 µg/L
Tin (Sn) Total ND 1 0.06 0.3 µg/L
Titanium (Ti) Total ND 1 0.08 0.4 µg/L
Vanadium (V) Total ND 1 0.03 0.15 µg/L
Zinc (Zn) Total ND 1 0.022 0.069 µg/L
qcb - 36 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94870-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 245.7 Batch ID: E-24150 Prepared: 15-Jan-22 Analyzed: 15-Jan-22 Mercury (Hg) Total 1.03 1 0.01 0.02 µg/L 1 0 103 84 - 120% PASS Method: EPA 200.8 Batch ID: E-26078 Prepared: 01-Feb-22 Analyzed: 03-Feb-22 Aluminum (Al) Total 1070 1 1.65 8.25 µg/L 1000 0 107 85 - 115% PASS Antimony (Sb) Total 1060 1 0.03 0.15 µg/L 1000 0 106 87 - 117% PASS Arsenic (As) Total 1070 1 0.05 0.159 µg/L 1000 0 107 81 - 116% PASS Barium (Ba) Total 1050 1 0.25 0.5 µg/L 1000 0 105 89 - 119% PASS Beryllium (Be) Total 1060 1 0.01 0.031 µg/L 1000 0 106 79 - 114% PASS Cadmium (Cd) Total 1000 1 0.007 0.023 µg/L 1000 0 100 87 - 117% PASS Chromium (Cr) Total 1070 1 0.01 0.05 µg/L 1000 0 107 85 - 115% PASS Cobalt (Co) Total 1080 1 0.01 0.05 µg/L 1000 0 108 85 - 115% PASS Copper (Cu) Total 1060 1 0.007 0.022 µg/L 1000 0 106 86 - 116% PASS Iron (Fe) Total 1080 1 1.13 5.65 µg/L 1000 0 108 85 - 115% PASS Lead (Pb) Total 1040 1 0.007 0.021 µg/L 1000 0 104 87 - 117% PASS Manganese (Mn) Total 1060 1 0.005 0.01 µg/L 1000 0 106 83 - 113% PASS Molybdenum (Mo) Total 1010 1 0.007 0.022 µg/L 1000 0 101 87 - 117% PASS Nickel (Ni) Total 1060 1 0.013 0.042 µg/L 1000 0 106 85 - 115% PASS Selenium (Se) Total 1060 1 0.021 0.068 µg/L 1000 0 106 80 - 116% PASS Silver (Ag) Total 83.3 1 0.01 0.02 µg/L 100 0 83 63 - 128% PASS Strontium (Sr) Total 1020 1 0.03 0.15 µg/L 1000 0 102 87 - 117% PASS Thallium (Tl) Total 990 1 0.01 0.05 µg/L 1000 0 99 90 - 120% PASS Tin (Sn) Total 991 1 0.06 0.3 µg/L 1000 0 99 90 - 120% PASS Titanium (Ti) Total 1060 1 0.08 0.4 µg/L 1000 0 106 77 - 117% PASS Vanadium (V) Total 1070 1 0.03 0.15 µg/L 1000 0 107 82 - 112% PASS Zinc (Zn) Total 1030 1 0.022 0.069 µg/L 1000 0 103 85 - 115% PASS qcb - 37 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94870-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 245.7 Batch ID: E-24150 Prepared: 15-Jan-22 Analyzed: 15-Jan-22 Mercury (Hg) Total 0.998 1 0.01 0.02 µg/L 1 0 100 84 - 120% PASS 3 30 PASS Method: EPA 200.8 Batch ID: E-26078 Prepared: 01-Feb-22 Analyzed: 03-Feb-22 Aluminum (Al) Total 1050 1 1.65 8.25 µg/L 1000 0 105 85 - 115% PASS 2 30 PASS Antimony (Sb) Total 1100 1 0.03 0.15 µg/L 1000 0 110 87 - 117% PASS 4 30 PASS Arsenic (As) Total 1100 1 0.05 0.159 µg/L 1000 0 110 81 - 116% PASS 3 30 PASS Barium (Ba) Total 1110 1 0.25 0.5 µg/L 1000 0 111 89 - 119% PASS 6 30 PASS Beryllium (Be) Total 1080 1 0.01 0.031 µg/L 1000 0 108 79 - 114% PASS 2 30 PASS Cadmium (Cd) Total 1030 1 0.007 0.023 µg/L 1000 0 103 87 - 117% PASS 3 30 PASS Chromium (Cr) Total 1090 1 0.01 0.05 µg/L 1000 0 109 85 - 115% PASS 2 30 PASS Cobalt (Co) Total 1100 1 0.01 0.05 µg/L 1000 0 110 85 - 115% PASS 2 30 PASS Copper (Cu) Total 1080 1 0.007 0.022 µg/L 1000 0 108 86 - 116% PASS 2 30 PASS Iron (Fe) Total 1090 1 1.13 5.65 µg/L 1000 0 109 85 - 115% PASS 1 30 PASS Lead (Pb) Total 1080 1 0.007 0.021 µg/L 1000 0 108 87 - 117% PASS 4 30 PASS Manganese (Mn) Total 1070 1 0.005 0.01 µg/L 1000 0 107 83 - 113% PASS 1 30 PASS Molybdenum (Mo) Total 1050 1 0.007 0.022 µg/L 1000 0 105 87 - 117% PASS 4 30 PASS Nickel (Ni) Total 1090 1 0.013 0.042 µg/L 1000 0 109 85 - 115% PASS 3 30 PASS Selenium (Se) Total 1080 1 0.021 0.068 µg/L 1000 0 108 80 - 116% PASS 2 30 PASS Silver (Ag) Total 96.7 1 0.01 0.02 µg/L 100 0 97 63 - 128% PASS 16 30 PASS Strontium (Sr) Total 1060 1 0.03 0.15 µg/L 1000 0 106 87 - 117% PASS 4 30 PASS Thallium (Tl) Total 1020 1 0.01 0.05 µg/L 1000 0 102 90 - 120% PASS 3 30 PASS Tin (Sn) Total 1030 1 0.06 0.3 µg/L 1000 0 103 90 - 120% PASS 4 30 PASS Titanium (Ti) Total 1070 1 0.08 0.4 µg/L 1000 0 107 77 - 117% PASS 1 30 PASS Vanadium (V) Total 1090 1 0.03 0.15 µg/L 1000 0 109 82 - 112% PASS 2 30 PASS Zinc (Zn) Total 1050 1 0.022 0.069 µg/L 1000 0 105 85 - 115% PASS 2 30 PASS qcb - 38 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94871-MS1 2021-E2-BASINSMGL-01 Matrix: Sediment Sampled: 07-Jan-22 13:00 Received: 07-Jan-22 Method: EPA 245.7 Batch ID: E-24154 Prepared: 10-Feb-22 Analyzed: 25-Feb-22 Mercury (Hg) NA 0.311 1 0.00001 0.00002 µg/dry g 0.275 0.0195 106 76 - 135% PASS Sample ID: 94871-MS2 2021-E2-BASINSMGL-01 Matrix: Sediment Sampled: 07-Jan-22 13:00 Received: 07-Jan-22 Method: EPA 245.7 Batch ID: E-24154 Prepared: 10-Feb-22 Analyzed: 25-Feb-22 Mercury (Hg) NA 0.309 1 0.00001 0.00002 µg/dry g 0.275 0.0195 105 76 - 135% PASS 1 30 PASS qcb - 39 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94871-R2 2021-E2-BASINSMGL-01 Matrix: Sediment Sampled: 07-Jan-22 13:00 Received: 07-Jan-22 Method: EPA 245.7 Batch ID: E-24154 Prepared: 10-Feb-22 Analyzed: 25-Feb-22 Mercury (Hg) NA 0.0179 1 0.00001 0.00002 µg/dry g 9 30 PASS Method: EPA 6020 Batch ID: E-25085 Prepared: 10-Feb-22 Analyzed: 14-Feb-22 Aluminum (Al) NA 11600 1 1 5 µg/dry g 13 30 PASS
Antimony (Sb) NA 0.652 1 0.025 0.05 µg/dry g 1 30 PASS
Arsenic (As) NA 3.76 1 0.025 0.05 µg/dry g 7 30 PASS
Barium (Ba) NA 101 1 0.025 0.05 µg/dry g 11 30 PASS
Beryllium (Be) NA 0.242 1 0.025 0.05 µg/dry g 8 30 PASS Cadmium (Cd) NA 0.277 1 0.0025 0.005 µg/dry g 59 30 FAIL NH Chromium (Cr) NA 13.5 1 0.0025 0.005 µg/dry g 6 30 PASS Cobalt (Co) NA 3.75 1 0.025 0.05 µg/dry g 0 30 PASS
Copper (Cu) NA 11.2 1 0.0025 0.005 µg/dry g 8 30 PASS
Iron (Fe) NA 12700 1 1 5 µg/dry g 3 30 PASS
Lead (Pb) NA 10.1 1 0.0025 0.005 µg/dry g 3 30 PASS
Manganese (Mn) NA 168 1 0.005 0.01 µg/dry g 12 30 PASS
Molybdenum (Mo) NA 0.558 1 0.025 0.05 µg/dry g 9 30 PASS Nickel (Ni) NA 5.3 1 0.01 0.02 µg/dry g 4 30 PASS
Selenium (Se) NA 0.172 1 0.025 0.05 µg/dry g 43 30 FAIL SL Silver (Ag) NA 0.284 1 0.01 0.02 µg/dry g 30 30 PASS
Thallium (Tl) NA 0.181 1 0.025 0.05 µg/dry g 4 30 PASS
Vanadium (V) NA 32 1 0.025 0.05 µg/dry g 5 30 PASS
Zinc (Zn) NA 55.2 1 0.025 0.05 µg/dry g 3 30 PASS
qcb - 40 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94877-MS1 2021-E2-EQUIPBLANK_METALS Matrix: Samplewater Sampled: 07-Jan-22 11:00 Received: 07-Jan-22 Method: EPA 200.8 Batch ID: E-26078 Prepared: 01-Feb-22 Analyzed: 03-Feb-22 Aluminum (Al) Total 105 1 1.65 8.25 µg/L 100 0 105 75 - 130% PASS Antimony (Sb) Total 111 1 0.03 0.15 µg/L 100 0 111 91 - 121% PASS Arsenic (As) Total 108 1 0.05 0.159 µg/L 100 0 108 94 - 135% PASS Barium (Ba) Total 114 1 0.25 0.5 µg/L 100 3.09 111 90 - 120% PASS Beryllium (Be) Total 108 1 0.01 0.031 µg/L 100 0 108 86 - 118% PASS Cadmium (Cd) Total 105 1 0.007 0.023 µg/L 100 0 105 90 - 120% PASS Chromium (Cr) Total 105 1 0.01 0.05 µg/L 100 0 105 89 - 119% PASS Cobalt (Co) Total 107 1 0.01 0.05 µg/L 100 0 107 87 - 117% PASS Copper (Cu) Total 107 1 0.007 0.022 µg/L 100 0 107 85 - 115% PASS Iron (Fe) Total 103 1 1.13 5.65 µg/L 100 0 103 65 - 134% PASS Lead (Pb) Total 105 1 0.007 0.021 µg/L 100 0 105 78 - 117% PASS Manganese (Mn) Total 105 1 0.005 0.01 µg/L 100 0 105 83 - 125% PASS Molybdenum (Mo) Total 99.8 1 0.007 0.022 µg/L 100 0 100 79 - 133% PASS Nickel (Ni) Total 105 1 0.013 0.042 µg/L 100 0 105 85 - 115% PASS Selenium (Se) Total 108 1 0.021 0.068 µg/L 100 0.0316 108 77 - 144% PASS Silver (Ag) Total 6.2 1 0.01 0.02 µg/L 10 0 62 52 - 115% PASS Strontium (Sr) Total 105 1 0.03 0.15 µg/L 100 0.244 105 75 - 125% PASS Thallium (Tl) Total 99.7 1 0.01 0.05 µg/L 100 0 100 84 - 118% PASS Tin (Sn) Total 100 1 0.06 0.3 µg/L 100 0 100 82 - 132% PASS Titanium (Ti) Total 104 1 0.08 0.4 µg/L 100 0.0889 104 75 - 131% PASS Vanadium (V) Total 105 1 0.03 0.15 µg/L 100 0 105 96 - 126% PASS Zinc (Zn) Total 111 1 0.022 0.069 µg/L 100 0.389 111 85 - 132% PASS qcb - 41 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94877-MS2 2021-E2-EQUIPBLANK_METALS Matrix: Samplewater Sampled: 07-Jan-22 11:00 Received: 07-Jan-22 Method: EPA 200.8 Batch ID: E-26078 Prepared: 01-Feb-22 Analyzed: 03-Feb-22 Aluminum (Al) Total 107 1 1.65 8.25 µg/L 100 0 107 75 - 130% PASS 2 30 PASS Antimony (Sb) Total 116 1 0.03 0.15 µg/L 100 0 116 91 - 121% PASS 4 30 PASS Arsenic (As) Total 115 1 0.05 0.159 µg/L 100 0 115 94 - 135% PASS 6 30 PASS Barium (Ba) Total 117 1 0.25 0.5 µg/L 100 3.09 114 90 - 120% PASS 3 30 PASS Beryllium (Be) Total 113 1 0.01 0.031 µg/L 100 0 113 86 - 118% PASS 5 30 PASS Cadmium (Cd) Total 109 1 0.007 0.023 µg/L 100 0 109 90 - 120% PASS 4 30 PASS Chromium (Cr) Total 109 1 0.01 0.05 µg/L 100 0 109 89 - 119% PASS 4 30 PASS Cobalt (Co) Total 112 1 0.01 0.05 µg/L 100 0 112 87 - 117% PASS 5 30 PASS Copper (Cu) Total 110 1 0.007 0.022 µg/L 100 0 110 85 - 115% PASS 3 30 PASS Iron (Fe) Total 106 1 1.13 5.65 µg/L 100 0 106 65 - 134% PASS 3 30 PASS Lead (Pb) Total 109 1 0.007 0.021 µg/L 100 0 109 78 - 117% PASS 4 30 PASS Manganese (Mn) Total 109 1 0.005 0.01 µg/L 100 0 109 83 - 125% PASS 4 30 PASS Molybdenum (Mo) Total 104 1 0.007 0.022 µg/L 100 0 104 79 - 133% PASS 4 30 PASS Nickel (Ni) Total 110 1 0.013 0.042 µg/L 100 0 110 85 - 115% PASS 5 30 PASS Selenium (Se) Total 113 1 0.021 0.068 µg/L 100 0.0316 113 77 - 144% PASS 5 30 PASS Silver (Ag) Total 7.08 1 0.01 0.02 µg/L 10 0 71 52 - 115% PASS 14 30 PASS Strontium (Sr) Total 110 1 0.03 0.15 µg/L 100 0.244 110 75 - 125% PASS 5 30 PASS Thallium (Tl) Total 104 1 0.01 0.05 µg/L 100 0 104 84 - 118% PASS 4 30 PASS Tin (Sn) Total 106 1 0.06 0.3 µg/L 100 0 106 82 - 132% PASS 6 30 PASS Titanium (Ti) Total 110 1 0.08 0.4 µg/L 100 0.0889 110 75 - 131% PASS 6 30 PASS Vanadium (V) Total 110 1 0.03 0.15 µg/L 100 0 110 96 - 126% PASS 5 30 PASS Zinc (Zn) Total 117 1 0.022 0.069 µg/L 100 0.389 117 85 - 132% PASS 5 30 PASS qcb - 42 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94877-R2 2021-E2-EQUIPBLANK_METALS Matrix: Samplewater Sampled: 07-Jan-22 11:00 Received: 07-Jan-22 Method: EPA 200.8 Batch ID: E-26078 Prepared: 01-Feb-22 Analyzed: 03-Feb-22 Aluminum (Al) Total ND 1 1.65 8.25 µg/L 0 30 PASS
Antimony (Sb) Total ND 1 0.03 0.15 µg/L 0 30 PASS
Arsenic (As) Total ND 1 0.05 0.159 µg/L 0 30 PASS
Barium (Ba) Total 2.82 1 0.25 0.5 µg/L 9 30 PASS
Beryllium (Be) Total ND 1 0.01 0.031 µg/L 0 30 PASS
Cadmium (Cd) Total ND 1 0.007 0.023 µg/L 0 30 PASS
Chromium (Cr) Total ND 1 0.01 0.05 µg/L 0 30 PASS
Cobalt (Co) Total ND 1 0.01 0.05 µg/L 0 30 PASS
Copper (Cu) Total ND 1 0.007 0.022 µg/L 0 30 PASS
Iron (Fe) Total ND 1 1.13 5.65 µg/L 0 30 PASS
Lead (Pb) Total ND 1 0.007 0.021 µg/L 0 30 PASS
Manganese (Mn) Total ND 1 0.005 0.01 µg/L 0 30 PASS
Molybdenum (Mo) Total ND 1 0.007 0.022 µg/L 0 30 PASS
Nickel (Ni) Total ND 1 0.013 0.042 µg/L 0 30 PASS
Selenium (Se) Total ND 1 0.021 0.068 µg/L 40 30 FAIL SL Silver (Ag) Total ND 1 0.01 0.02 µg/L 0 30 PASS SL
Strontium (Sr) Total 0.221 1 0.03 0.15 µg/L 10 30 PASS
Thallium (Tl) Total ND 1 0.01 0.05 µg/L 0 30 PASS
Tin (Sn) Total ND 1 0.06 0.3 µg/L 0 30 PASS
Titanium (Ti) Total ND 1 0.08 0.4 µg/L 11 30 PASS
Vanadium (V) Total ND 1 0.03 0.15 µg/L 0 30 PASS
Zinc (Zn) Total ND 1 0.022 0.069 µg/L 179 30 FAIL SL
qcb - 43 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Organophosphorus Pesticides
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 Bolstar (Sulprofos) NA ND 1 10 20 ng/dry g
Chlorpyrifos NA ND 1 1 2 ng/dry g
Demeton NA ND 1 10 20 ng/dry g
Diazinon NA ND 1 1 2 ng/dry g
Dichlorvos NA ND 1 10 20 ng/dry g
Dimethoate NA ND 1 5 10 ng/dry g
Disulfoton NA ND 1 10 20 ng/dry g
Ethoprop (Ethoprofos) NA ND 1 10 20 ng/dry g
Fenchlorphos (Ronnel) NA ND 1 10 20 ng/dry g
Fensulfothion NA ND 1 10 20 ng/dry g
Fenthion NA ND 1 10 20 ng/dry g
Malathion NA ND 1 5 10 ng/dry g
Methidathion NA ND 1 10 20 ng/dry g
Methyl Parathion NA ND 1 10 20 ng/dry g
Mevinphos (Phosdrin) NA ND 1 10 20 ng/dry g
Phorate NA ND 1 10 20 ng/dry g
Tetrachlorvinphos (Stirofos) NA ND 1 10 20 ng/dry g
Tokuthion (Prothiofos) NA ND 1 10 20 ng/dry g
Trichloronate NA ND 1 10 20 ng/dry g
qcb - 44 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 Bolstar (Sulprofos) NA 395 1 10 20 ng/dry g 500 0 79 50 - 150% PASS Chlorpyrifos NA 373 1 1 2 ng/dry g 500 0 75 50 - 150% PASS Demeton NA 352 1 10 20 ng/dry g 500 0 70 25 - 125% PASS Diazinon NA 429 1 1 2 ng/dry g 500 0 86 50 - 150% PASS
Dichlorvos NA 210 1 10 20 ng/dry g 500 0 42 50 - 150% FAIL R Dimethoate NA 287 1 5 10 ng/dry g 500 0 57 50 - 150% PASS Disulfoton NA 308 1 10 20 ng/dry g 500 0 62 25 - 125% PASS Ethoprop (Ethoprofos) NA 380 1 10 20 ng/dry g 500 0 76 50 - 150% PASS Fenchlorphos (Ronnel) NA 476 1 10 20 ng/dry g 500 0 95 50 - 150% PASS Fensulfothion NA 435 1 10 20 ng/dry g 500 0 87 50 - 150% PASS Fenthion NA 439 1 10 20 ng/dry g 500 0 88 50 - 150% PASS Malathion NA 520 1 5 10 ng/dry g 500 0 104 50 - 150% PASS Methidathion NA 600 1 10 20 ng/dry g 500 0 120 50 - 150% PASS Methyl Parathion NA 526 1 10 20 ng/dry g 500 0 105 50 - 150% PASS Mevinphos (Phosdrin) NA 313 1 10 20 ng/dry g 500 0 63 50 - 150% PASS Phorate NA 258 1 10 20 ng/dry g 500 0 52 50 - 150% PASS Tetrachlorvinphos (Stirofos) NA 507 1 10 20 ng/dry g 500 0 101 50 - 150% PASS Tokuthion (Prothiofos) NA 448 1 10 20 ng/dry g 500 0 90 50 - 150% PASS Trichloronate NA 394 1 10 20 ng/dry g 500 0 79 50 - 150% PASS qcb - 45 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 Bolstar (Sulprofos) NA 427 1 10 20 ng/dry g 500 0 85 50 - 150% PASS 7 30 PASS Chlorpyrifos NA 382 1 1 2 ng/dry g 500 0 76 50 - 150% PASS 1 30 PASS Demeton NA 342 1 10 20 ng/dry g 500 0 68 25 - 125% PASS 3 30 PASS Diazinon NA 445 1 1 2 ng/dry g 500 0 89 50 - 150% PASS 3 30 PASS Dichlorvos NA 255 1 10 20 ng/dry g 500 0 51 50 - 150% PASS 19 30 PASS Dimethoate NA 285 1 5 10 ng/dry g 500 0 57 50 - 150% PASS 0 30 PASS Disulfoton NA 285 1 10 20 ng/dry g 500 0 57 25 - 125% PASS 8 30 PASS Ethoprop (Ethoprofos) NA 383 1 10 20 ng/dry g 500 0 77 50 - 150% PASS 1 30 PASS Fenchlorphos (Ronnel) NA 479 1 10 20 ng/dry g 500 0 96 50 - 150% PASS 1 30 PASS Fensulfothion NA 454 1 10 20 ng/dry g 500 0 91 50 - 150% PASS 4 30 PASS Fenthion NA 439 1 10 20 ng/dry g 500 0 88 50 - 150% PASS 0 30 PASS Malathion NA 535 1 5 10 ng/dry g 500 0 107 50 - 150% PASS 3 30 PASS Methidathion NA 598 1 10 20 ng/dry g 500 0 120 50 - 150% PASS 0 30 PASS Methyl Parathion NA 519 1 10 20 ng/dry g 500 0 104 50 - 150% PASS 1 30 PASS Mevinphos (Phosdrin) NA 356 1 10 20 ng/dry g 500 0 71 50 - 150% PASS 12 30 PASS Phorate NA 263 1 10 20 ng/dry g 500 0 53 50 - 150% PASS 2 30 PASS Tetrachlorvinphos (Stirofos) NA 510 1 10 20 ng/dry g 500 0 102 50 - 150% PASS 1 30 PASS Tokuthion (Prothiofos) NA 408 1 10 20 ng/dry g 500 0 82 50 - 150% PASS 9 30 PASS Trichloronate NA 389 1 10 20 ng/dry g 500 0 78 50 - 150% PASS 1 30 PASS qcb - 46 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 Bolstar (Sulprofos) NA 404 1 10 20 ng/dry g 500 0 81 50 - 150% PASS Chlorpyrifos NA 393 1 1 2 ng/dry g 500 0 79 50 - 150% PASS Demeton NA 359 1 10 20 ng/dry g 500 0 72 25 - 125% PASS Diazinon NA 495 1 1 2 ng/dry g 500 0 99 50 - 150% PASS
Dichlorvos NA 298 1 10 20 ng/dry g 500 0 60 50 - 150% PASS Dimethoate NA 434 1 5 10 ng/dry g 500 0 87 50 - 150% PASS Disulfoton NA 326 1 10 20 ng/dry g 500 0 65 25 - 125% PASS Ethoprop (Ethoprofos) NA 391 1 10 20 ng/dry g 500 0 78 50 - 150% PASS Fenchlorphos (Ronnel) NA 517 1 10 20 ng/dry g 500 0 103 50 - 150% PASS Fensulfothion NA 376 1 10 20 ng/dry g 500 0 75 50 - 150% PASS Fenthion NA 510 1 10 20 ng/dry g 500 0 102 50 - 150% PASS Malathion NA 576 1 5 10 ng/dry g 500 0 115 50 - 150% PASS Methidathion NA 573 1 10 20 ng/dry g 500 0 115 50 - 150% PASS Methyl Parathion NA 431 1 10 20 ng/dry g 500 0 86 50 - 150% PASS Mevinphos (Phosdrin) NA 488 1 10 20 ng/dry g 500 0 98 50 - 150% PASS Phorate NA 403 1 10 20 ng/dry g 500 0 81 50 - 150% PASS Tetrachlorvinphos (Stirofos) NA 458 1 10 20 ng/dry g 500 0 92 50 - 150% PASS Tokuthion (Prothiofos) NA 396 1 10 20 ng/dry g 500 0 79 50 - 150% PASS Trichloronate NA 428 1 10 20 ng/dry g 500 0 86 50 - 150% PASS qcb - 47 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 Bolstar (Sulprofos) NA 396 1 10 20 ng/dry g 500 0 79 50 - 150% PASS 2 30 PASS Chlorpyrifos NA 404 1 1 2 ng/dry g 500 0 81 50 - 150% PASS 2 30 PASS Demeton NA 414 1 10 20 ng/dry g 500 0 83 25 - 125% PASS 14 30 PASS Diazinon NA 518 1 1 2 ng/dry g 500 0 104 50 - 150% PASS 5 30 PASS Dichlorvos NA 328 1 10 20 ng/dry g 500 0 66 50 - 150% PASS 10 30 PASS Dimethoate NA 467 1 5 10 ng/dry g 500 0 93 50 - 150% PASS 7 30 PASS Disulfoton NA 360 1 10 20 ng/dry g 500 0 72 25 - 125% PASS 10 30 PASS Ethoprop (Ethoprofos) NA 412 1 10 20 ng/dry g 500 0 82 50 - 150% PASS 5 30 PASS Fenchlorphos (Ronnel) NA 531 1 10 20 ng/dry g 500 0 106 50 - 150% PASS 3 30 PASS Fensulfothion NA 366 1 10 20 ng/dry g 500 0 73 50 - 150% PASS 3 30 PASS Fenthion NA 530 1 10 20 ng/dry g 500 0 106 50 - 150% PASS 4 30 PASS Malathion NA 603 1 5 10 ng/dry g 500 0 121 50 - 150% PASS 5 30 PASS Methidathion NA 621 1 10 20 ng/dry g 500 0 124 50 - 150% PASS 8 30 PASS Methyl Parathion NA 482 1 10 20 ng/dry g 500 0 96 50 - 150% PASS 11 30 PASS Mevinphos (Phosdrin) NA 537 1 10 20 ng/dry g 500 0 107 50 - 150% PASS 9 30 PASS Phorate NA 428 1 10 20 ng/dry g 500 0 86 50 - 150% PASS 6 30 PASS Tetrachlorvinphos (Stirofos) NA 487 1 10 20 ng/dry g 500 0 97 50 - 150% PASS 5 30 PASS Tokuthion (Prothiofos) NA 413 1 10 20 ng/dry g 500 0 83 50 - 150% PASS 5 30 PASS Trichloronate NA 433 1 10 20 ng/dry g 500 0 87 50 - 150% PASS 1 30 PASS qcb - 48 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 Bolstar (Sulprofos) NA ND 1 10 20 ng/dry g 0 30 PASS
Chlorpyrifos NA ND 1 1 2 ng/dry g 0 30 PASS
Demeton NA ND 1 10 20 ng/dry g 0 30 PASS
Diazinon NA ND 1 1 2 ng/dry g 0 30 PASS
Dichlorvos NA ND 1 10 20 ng/dry g 0 30 PASS
Dimethoate NA ND 1 5 10 ng/dry g 0 30 PASS
Disulfoton NA ND 1 10 20 ng/dry g 0 30 PASS
Ethoprop (Ethoprofos) NA ND 1 10 20 ng/dry g 0 30 PASS
Fenchlorphos (Ronnel) NA ND 1 10 20 ng/dry g 0 30 PASS
Fensulfothion NA ND 1 10 20 ng/dry g 0 30 PASS
Fenthion NA ND 1 10 20 ng/dry g 0 30 PASS
Malathion NA ND 1 5 10 ng/dry g 0 30 PASS
Methidathion NA ND 1 10 20 ng/dry g 0 30 PASS
Methyl Parathion NA ND 1 10 20 ng/dry g 0 30 PASS
Mevinphos (Phosdrin) NA ND 1 10 20 ng/dry g 0 30 PASS
Phorate NA ND 1 10 20 ng/dry g 0 30 PASS
Tetrachlorvinphos (Stirofos) NA ND 1 10 20 ng/dry g 0 30 PASS Tokuthion (Prothiofos) NA ND 1 10 20 ng/dry g 0 30 PASS Trichloronate NA ND 1 10 20 ng/dry g 0 30 PASS
qcb - 49 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Particle Size Distribution
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: SM 2560 D Batch ID: P-1213 Prepared: 28-Feb-22 Analyzed: 28-Feb-22 Clay <0.0039 mm NA ND 1 0.05 0.05 %
Granule 2.0 <4.0 mm NA ND 1 0.05 0.05 %
Sand 0.0625 to <2.0 mm NA ND 1 0.05 0.05 %
Silt 0.0039 to <0.0625 mm NA ND 1 0.05 0.05 %
Sample ID: 94869-LCM1 QAQC LCM - Physis PSD Matrix: Sediment Sampled: Received:

Method: SM 2560 D Batch ID: P-1213 Prepared: 28-Feb-22 Analyzed: 28-Feb-22 Clay <0.0039 mm NA 9.2 1 0.05 0.05 % 10 92 70 - 130% PASS Sand 0.0625 to <2.0 mm NA 57.1 1 0.05 0.05 % 54 106 80 - 120% PASS Silt 0.0039 to <0.0625 mm NA 33.6 1 0.05 0.05 % 36 93 69 - 131% PASS Sample ID: 94871-R2 2021-E2-BASINSMGL-01 Matrix: Sediment Sampled: 07-Jan-22 13:00 Received: 07-Jan-22 Method: SM 2560 D Batch ID: P-1213 Prepared: 28-Feb-22 Analyzed: 28-Feb-22 Clay <0.0039 mm NA 4.5 1 0.05 0.05 % 24 30 PASS
Granule 2.0 <4.0 mm NA ND 1 0.05 0.05 % 0 30 PASS
Sand 0.0625 to <2.0 mm NA 72.9 1 0.05 0.05 % 7 30 PASS
Silt 0.0039 to <0.0625 mm NA 22.7 1 0.05 0.05 % 15 30 PASS qcb - 50 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT PCB Congeners
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 PCB003 NA ND 1 0.1 0.2 ng/dry g
PCB008 NA ND 1 0.017 0.2 ng/dry g
PCB018 NA ND 1 0.029 0.2 ng/dry g
PCB028 NA ND 1 0.023 0.2 ng/dry g
PCB031 NA ND 1 0.1 0.2 ng/dry g
PCB033 NA ND 1 0.1 0.2 ng/dry g
PCB037 NA ND 1 0.06 0.2 ng/dry g
PCB044 NA ND 1 0.028 0.2 ng/dry g
PCB049 NA ND 1 0.036 0.2 ng/dry g
PCB052 NA ND 1 0.012 0.2 ng/dry g
PCB056(060) NA ND 1 0.1 0.2 ng/dry g
PCB066 NA ND 1 0.027 0.2 ng/dry g
PCB070 NA ND 1 0.023 0.2 ng/dry g
PCB074 NA ND 1 0.021 0.2 ng/dry g
PCB077 NA ND 1 0.018 0.2 ng/dry g
PCB081 NA ND 1 0.084 0.2 ng/dry g
PCB087 NA ND 1 0.081 0.2 ng/dry g
PCB095 NA ND 1 0.1 0.2 ng/dry g
PCB097 NA ND 1 0.1 0.2 ng/dry g
PCB099 NA ND 1 0.028 0.2 ng/dry g
PCB101 NA ND 1 0.027 0.2 ng/dry g
PCB105 NA ND 1 0.047 0.2 ng/dry g
PCB110 NA ND 1 0.074 0.2 ng/dry g
qcb - 51 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB114 NA ND 1 0.072 0.2 ng/dry g
PCB118 NA ND 1 0.069 0.2 ng/dry g
PCB119 NA ND 1 0.071 0.2 ng/dry g
PCB123 NA ND 1 0.018 0.2 ng/dry g
PCB126 NA ND 1 0.086 0.2 ng/dry g
PCB128 NA ND 1 0.081 0.2 ng/dry g
PCB138 NA ND 1 0.057 0.2 ng/dry g
PCB141 NA ND 1 0.1 0.2 ng/dry g
PCB149 NA ND 1 0.092 0.2 ng/dry g
PCB151 NA ND 1 0.073 0.2 ng/dry g
PCB153 NA ND 1 0.065 0.2 ng/dry g
PCB156 NA ND 1 0.089 0.2 ng/dry g
PCB157 NA ND 1 0.103 0.2 ng/dry g
PCB158 NA ND 1 0.074 0.2 ng/dry g
PCB167 NA ND 1 0.049 0.2 ng/dry g
PCB168+132 NA ND 1 0.094 0.2 ng/dry g
PCB169 NA ND 1 0.116 0.2 ng/dry g
PCB170 NA ND 1 0.118 0.25 ng/dry g
PCB174 NA ND 1 0.12 0.25 ng/dry g
PCB177 NA ND 1 0.085 0.25 ng/dry g
PCB180 NA ND 1 0.154 0.25 ng/dry g
PCB183 NA ND 1 0.056 0.25 ng/dry g
PCB187 NA ND 1 0.168 0.25 ng/dry g
PCB189 NA ND 1 0.109 0.25 ng/dry g
PCB194 NA ND 1 0.164 0.25 ng/dry g
PCB195 NA ND 1 0.093 0.25 ng/dry g
qcb - 52 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB199(200) NA ND 1 0.12 0.25 ng/dry g
PCB201 NA ND 1 0.104 0.25 ng/dry g
PCB206 NA ND 1 0.155 0.25 ng/dry g
PCB209 NA ND 1 0.12 0.25 ng/dry g
qcb - 53 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 PCB003 NA 34.8 1 0.1 0.2 ng/dry g 50 0 70 56 - 116% PASS PCB008 NA 32.5 1 0.017 0.2 ng/dry g 50 0 65 63 - 119% PASS PCB018 NA 49.4 1 0.029 0.2 ng/dry g 50 0 99 68 - 119% PASS PCB028 NA 39.8 1 0.023 0.2 ng/dry g 50 0 80 67 - 123% PASS PCB031 NA 42.3 1 0.1 0.2 ng/dry g 50 0 85 70 - 127% PASS PCB033 NA 43.7 1 0.1 0.2 ng/dry g 50 0 87 70 - 123% PASS PCB037 NA 51.9 1 0.06 0.2 ng/dry g 50 0 104 77 - 116% PASS PCB044 NA 41.4 1 0.028 0.2 ng/dry g 50 0 83 76 - 114% PASS PCB049 NA 47.8 1 0.036 0.2 ng/dry g 50 0 96 72 - 122% PASS PCB052 NA 38.4 1 0.012 0.2 ng/dry g 50 0 77 74 - 119% PASS PCB056(060) NA 43.3 1 0.1 0.2 ng/dry g 50 0 87 73 - 120% PASS PCB066 NA 43.3 1 0.027 0.2 ng/dry g 50 0 87 75 - 117% PASS PCB070 NA 44.2 1 0.023 0.2 ng/dry g 50 0 88 76 - 117% PASS PCB074 NA 44.8 1 0.021 0.2 ng/dry g 50 0 90 74 - 121% PASS PCB077 NA 48.4 1 0.018 0.2 ng/dry g 50 0 97 73 - 121% PASS PCB081 NA 46.9 1 0.084 0.2 ng/dry g 50 0 94 73 - 125% PASS PCB087 NA 44.1 1 0.081 0.2 ng/dry g 50 0 88 76 - 119% PASS PCB095 NA 36.9 1 0.1 0.2 ng/dry g 50 0 74 74 - 114% PASS PCB097 NA 42.2 1 0.1 0.2 ng/dry g 50 0 84 75 - 126% PASS PCB099 NA 40.9 1 0.028 0.2 ng/dry g 50 0 82 77 - 118% PASS PCB101 NA 38.4 1 0.027 0.2 ng/dry g 50 0 77 76 - 119% PASS PCB105 NA 55.1 1 0.047 0.2 ng/dry g 50 0 110 71 - 121% PASS PCB110 NA 40.6 1 0.074 0.2 ng/dry g 50 0 81 71 - 120% PASS qcb - 54 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB114 NA 40.9 1 0.072 0.2 ng/dry g 50 0 82 71 - 120% PASS PCB118 NA 45.2 1 0.069 0.2 ng/dry g 50 0 90 75 - 117% PASS PCB119 NA 39.4 1 0.071 0.2 ng/dry g 50 0 79 74 - 121% PASS PCB123 NA 39.7 1 0.018 0.2 ng/dry g 50 0 79 75 - 119% PASS PCB126 NA 45.1 1 0.086 0.2 ng/dry g 50 0 90 67 - 139% PASS PCB128 NA 58.9 1 0.081 0.2 ng/dry g 50 0 118 71 - 128% PASS PCB138 NA 42.7 1 0.057 0.2 ng/dry g 50 0 85 74 - 123% PASS PCB141 NA 42.2 1 0.1 0.2 ng/dry g 50 0 84 71 - 118% PASS PCB149 NA 36.7 1 0.092 0.2 ng/dry g 50 0 73 70 - 117% PASS PCB151 NA 42.5 1 0.073 0.2 ng/dry g 50 0 85 75 - 124% PASS PCB153 NA 46 1 0.065 0.2 ng/dry g 50 0 92 76 - 122% PASS PCB156 NA 41.6 1 0.089 0.2 ng/dry g 50 0 83 68 - 139% PASS PCB157 NA 55.9 1 0.103 0.2 ng/dry g 50 0 112 73 - 124% PASS PCB158 NA 54.6 1 0.074 0.2 ng/dry g 50 0 109 70 - 130% PASS PCB167 NA 48.9 1 0.049 0.2 ng/dry g 50 0 98 67 - 136% PASS PCB168+132 NA 88.4 1 0.094 0.2 ng/dry g 100 0 88 74 - 116% PASS PCB169 NA 51.7 1 0.116 0.2 ng/dry g 50 0 103 60 - 153% PASS PCB170 NA 55.2 1 0.118 0.25 ng/dry g 50 0 110 66 - 135% PASS PCB174 NA 53.7 1 0.12 0.25 ng/dry g 50 0 107 73 - 120% PASS PCB177 NA 53 1 0.085 0.25 ng/dry g 50 0 106 73 - 128% PASS PCB180 NA 61 1 0.154 0.25 ng/dry g 50 0 122 72 - 132% PASS PCB183 NA 45.7 1 0.056 0.25 ng/dry g 50 0 91 79 - 119% PASS PCB187 NA 47.3 1 0.168 0.25 ng/dry g 50 0 95 77 - 121% PASS PCB189 NA 43.9 1 0.109 0.25 ng/dry g 50 0 88 54 - 154% PASS PCB194 NA 46.9 1 0.164 0.25 ng/dry g 50 0 94 57 - 147% PASS PCB195 NA 61.4 1 0.093 0.25 ng/dry g 50 0 123 64 - 136% PASS qcb - 55 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB199(200) NA 55 1 0.12 0.25 ng/dry g 50 0 110 76 - 116% PASS PCB201 NA 45.9 1 0.104 0.25 ng/dry g 50 0 92 71 - 119% PASS PCB206 NA 55.1 1 0.155 0.25 ng/dry g 50 0 110 56 - 145% PASS PCB209 NA 51.9 1 0.12 0.25 ng/dry g 50 0 104 59 - 140% PASS qcb - 56 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 PCB003 NA 37 1 0.1 0.2 ng/dry g 50 0 74 56 - 116% PASS 6 30 PASS PCB008 NA 36.1 1 0.017 0.2 ng/dry g 50 0 72 63 - 119% PASS 10 30 PASS PCB018 NA 42 1 0.029 0.2 ng/dry g 50 0 84 68 - 119% PASS 16 30 PASS PCB028 NA 39.4 1 0.023 0.2 ng/dry g 50 0 79 67 - 123% PASS 1 30 PASS PCB031 NA 43.8 1 0.1 0.2 ng/dry g 50 0 88 70 - 127% PASS 3 30 PASS PCB033 NA 35.2 1 0.1 0.2 ng/dry g 50 0 70 70 - 123% PASS 22 30 PASS PCB037 NA 50.6 1 0.06 0.2 ng/dry g 50 0 101 77 - 116% PASS 3 30 PASS PCB044 NA 43.4 1 0.028 0.2 ng/dry g 50 0 87 76 - 114% PASS 5 30 PASS PCB049 NA 48.8 1 0.036 0.2 ng/dry g 50 0 98 72 - 122% PASS 2 30 PASS PCB052 NA 40.7 1 0.012 0.2 ng/dry g 50 0 81 74 - 119% PASS 5 30 PASS PCB056(060) NA 45 1 0.1 0.2 ng/dry g 50 0 90 73 - 120% PASS 3 30 PASS PCB066 NA 45.5 1 0.027 0.2 ng/dry g 50 0 91 75 - 117% PASS 4 30 PASS PCB070 NA 45.9 1 0.023 0.2 ng/dry g 50 0 92 76 - 117% PASS 4 30 PASS PCB074 NA 46 1 0.021 0.2 ng/dry g 50 0 92 74 - 121% PASS 2 30 PASS PCB077 NA 45.9 1 0.018 0.2 ng/dry g 50 0 92 73 - 121% PASS 5 30 PASS PCB081 NA 43.9 1 0.084 0.2 ng/dry g 50 0 88 73 - 125% PASS 7 30 PASS PCB087 NA 44.7 1 0.081 0.2 ng/dry g 50 0 89 76 - 119% PASS 1 30 PASS PCB095 NA 37.8 1 0.1 0.2 ng/dry g 50 0 76 74 - 114% PASS 3 30 PASS PCB097 NA 43.3 1 0.1 0.2 ng/dry g 50 0 87 75 - 126% PASS 4 30 PASS PCB099 NA 41.7 1 0.028 0.2 ng/dry g 50 0 83 77 - 118% PASS 1 30 PASS PCB101 NA 39.5 1 0.027 0.2 ng/dry g 50 0 79 76 - 119% PASS 3 30 PASS PCB105 NA 53.1 1 0.047 0.2 ng/dry g 50 0 106 71 - 121% PASS 4 30 PASS PCB110 NA 42.1 1 0.074 0.2 ng/dry g 50 0 84 71 - 120% PASS 4 30 PASS qcb - 57 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB114 NA 41.2 1 0.072 0.2 ng/dry g 50 0 82 71 - 120% PASS 0 30 PASS PCB118 NA 45.5 1 0.069 0.2 ng/dry g 50 0 91 75 - 117% PASS 1 30 PASS PCB119 NA 40.6 1 0.071 0.2 ng/dry g 50 0 81 74 - 121% PASS 2 30 PASS PCB123 NA 38.9 1 0.018 0.2 ng/dry g 50 0 78 75 - 119% PASS 1 30 PASS PCB126 NA 51 1 0.086 0.2 ng/dry g 50 0 102 67 - 139% PASS 12 30 PASS PCB128 NA 54.9 1 0.081 0.2 ng/dry g 50 0 110 71 - 128% PASS 7 30 PASS PCB138 NA 42.1 1 0.057 0.2 ng/dry g 50 0 84 74 - 123% PASS 1 30 PASS PCB141 NA 38.4 1 0.1 0.2 ng/dry g 50 0 77 71 - 118% PASS 9 30 PASS PCB149 NA 37.1 1 0.092 0.2 ng/dry g 50 0 74 70 - 117% PASS 1 30 PASS PCB151 NA 41 1 0.073 0.2 ng/dry g 50 0 82 75 - 124% PASS 4 30 PASS PCB153 NA 46 1 0.065 0.2 ng/dry g 50 0 92 76 - 122% PASS 0 30 PASS PCB156 NA 47.6 1 0.089 0.2 ng/dry g 50 0 95 68 - 139% PASS 13 30 PASS PCB157 NA 51.4 1 0.103 0.2 ng/dry g 50 0 103 73 - 124% PASS 8 30 PASS PCB158 NA 52 1 0.074 0.2 ng/dry g 50 0 104 70 - 130% PASS 5 30 PASS PCB167 NA 50 1 0.049 0.2 ng/dry g 50 0 100 67 - 136% PASS 2 30 PASS PCB168+132 NA 86.9 1 0.094 0.2 ng/dry g 100 0 87 74 - 116% PASS 1 30 PASS PCB169 NA 50.4 1 0.116 0.2 ng/dry g 50 0 101 60 - 153% PASS 2 30 PASS PCB170 NA 50.5 1 0.118 0.25 ng/dry g 50 0 101 66 - 135% PASS 9 30 PASS PCB174 NA 47.5 1 0.12 0.25 ng/dry g 50 0 95 73 - 120% PASS 12 30 PASS PCB177 NA 50.5 1 0.085 0.25 ng/dry g 50 0 101 73 - 128% PASS 5 30 PASS PCB180 NA 55.2 1 0.154 0.25 ng/dry g 50 0 110 72 - 132% PASS 10 30 PASS PCB183 NA 44.3 1 0.056 0.25 ng/dry g 50 0 89 79 - 119% PASS 2 30 PASS PCB187 NA 48.8 1 0.168 0.25 ng/dry g 50 0 98 77 - 121% PASS 3 30 PASS PCB189 NA 49.8 1 0.109 0.25 ng/dry g 50 0 100 54 - 154% PASS 13 30 PASS PCB194 NA 45 1 0.164 0.25 ng/dry g 50 0 90 57 - 147% PASS 4 30 PASS PCB195 NA 65.5 1 0.093 0.25 ng/dry g 50 0 131 64 - 136% PASS 6 30 PASS qcb - 58 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB199(200) NA 55.2 1 0.12 0.25 ng/dry g 50 0 110 76 - 116% PASS 0 30 PASS PCB201 NA 39.5 1 0.104 0.25 ng/dry g 50 0 79 71 - 119% PASS 15 30 PASS PCB206 NA 54.3 1 0.155 0.25 ng/dry g 50 0 109 56 - 145% PASS 1 30 PASS PCB209 NA 55.8 1 0.12 0.25 ng/dry g 50 0 112 59 - 140% PASS 7 30 PASS qcb - 59 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94868-CRM1 QAQC CRM - SRM 1944 Matrix: Sediment Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 PCB008 NA 14.9 1 0.017 0.2 ng/dry g 22.3 67 43 - 150% PASS PCB018 NA 37.9 1 0.029 0.2 ng/dry g 51 74 50 - 143% PASS PCB028 NA 68.7 1 0.023 0.2 ng/dry g 80.8 85 44 - 145% PASS PCB031 NA 70.1 1 0.1 0.2 ng/dry g 78.7 89 49 - 137% PASS PCB044 NA 49.5 1 0.028 0.2 ng/dry g 60.2 82 43 - 110% PASS PCB049 NA 43.6 1 0.036 0.2 ng/dry g 53 82 41 - 145% PASS PCB052 NA 61.6 1 0.012 0.2 ng/dry g 79.4 78 45 - 110% PASS PCB066 NA 59.9 1 0.027 0.2 ng/dry g 71.9 83 32 - 110% PASS PCB087 NA 24.4 1 0.081 0.2 ng/dry g 29.9 82 41 - 110% PASS PCB095 NA 61.2 1 0.1 0.2 ng/dry g 65 94 47 - 110% PASS
PCB099 NA 32.4 1 0.028 0.2 ng/dry g 37.5 86 33 - 110% PASS PCB101 NA 58.4 1 0.027 0.2 ng/dry g 73.4 80 41 - 110% PASS PCB105 NA 20.2 1 0.047 0.2 ng/dry g 24.5 82 12 - 111% PASS PCB110 NA 59.7 1 0.074 0.2 ng/dry g 63.5 94 41 - 110% PASS PCB118 NA 49.3 1 0.069 0.2 ng/dry g 58 85 34 - 110% PASS PCB128 NA 7.12 1 0.081 0.2 ng/dry g 8.5 84 32 - 137% PASS PCB138 NA 55.8 1 0.057 0.2 ng/dry g 62.1 90 34 - 142% PASS PCB149 NA 42.1 1 0.092 0.2 ng/dry g 49.7 85 44 - 128% PASS PCB151 NA 17.7 1 0.073 0.2 ng/dry g 16.9 105 37 - 122% PASS PCB153 NA 57.5 1 0.065 0.2 ng/dry g 74 78 39 - 110% PASS PCB156 NA 5.78 1 0.089 0.2 ng/dry g 6.5 89 35 - 120% PASS PCB170 NA 19.9 1 0.118 0.25 ng/dry g 22.6 88 34 - 148% PASS PCB174 NA 17 1 0.12 0.25 ng/dry g 16 106 59 - 145% PASS qcb - 60 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB180 NA 53.8 1 0.154 0.25 ng/dry g 44.3 121 44 - 132% PASS PCB183 NA 13.4 1 0.056 0.25 ng/dry g 12.2 110 53 - 131% PASS PCB187 NA 24.2 1 0.168 0.25 ng/dry g 25.1 96 56 - 131% PASS PCB194 NA 10 1 0.164 0.25 ng/dry g 11.2 89 34 - 166% PASS PCB195 NA 3.55 1 0.093 0.25 ng/dry g 3.8 93 40 - 173% PASS PCB206 NA 10.7 1 0.155 0.25 ng/dry g 9.2 116 50 - 159% PASS PCB209 NA 7.03 1 0.12 0.25 ng/dry g 6.8 103 35 - 165% PASS qcb - 61 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 PCB003 NA 34.3 1 0.1 0.2 ng/dry g 50 0 69 51 - 134% PASS PCB008 NA 31.1 1 0.017 0.2 ng/dry g 50 0 62 55 - 127% PASS PCB018 NA 34.7 1 0.029 0.2 ng/dry g 50 0 69 69 - 115% PASS PCB028 NA 38.6 1 0.023 0.2 ng/dry g 50 0 77 58 - 127% PASS PCB031 NA 32.2 1 0.1 0.2 ng/dry g 50 0 64 52 - 135% PASS PCB033 NA 32.5 1 0.1 0.2 ng/dry g 50 0 65 64 - 127% PASS PCB037 NA 47.4 1 0.06 0.2 ng/dry g 50 0 95 70 - 120% PASS PCB044 NA 37.7 1 0.028 0.2 ng/dry g 50 0 75 72 - 112% PASS PCB049 NA 37.3 1 0.036 0.2 ng/dry g 50 0 75 68 - 119% PASS PCB052 NA 36.6 1 0.012 0.2 ng/dry g 50 0 73 75 - 113% FAIL M PCB056(060) NA 30 1 0.1 0.2 ng/dry g 50 0 60 68 - 120% FAIL M PCB066 NA 32.9 1 0.027 0.2 ng/dry g 50 0 66 72 - 115% FAIL M PCB070 NA 34.7 1 0.023 0.2 ng/dry g 50 0 69 67 - 125% PASS PCB074 NA 31.7 1 0.021 0.2 ng/dry g 50 0 63 69 - 118% FAIL M PCB077 NA 55.4 1 0.018 0.2 ng/dry g 50 0 111 63 - 127% PASS PCB081 NA 46.1 1 0.084 0.2 ng/dry g 50 0 92 67 - 125% PASS PCB087 NA 30.9 1 0.081 0.2 ng/dry g 50 0 62 71 - 116% FAIL M PCB095 NA 42.6 1 0.1 0.2 ng/dry g 50 0 85 74 - 113% PASS PCB097 NA 30.4 1 0.1 0.2 ng/dry g 50 0 61 68 - 129% FAIL M PCB099 NA 36.4 1 0.028 0.2 ng/dry g 50 0 73 75 - 117% FAIL M PCB101 NA 37.3 1 0.027 0.2 ng/dry g 50 0 75 74 - 120% PASS PCB105 NA 61.8 1 0.047 0.2 ng/dry g 50 0 124 64 - 126% PASS PCB110 NA 40.2 1 0.074 0.2 ng/dry g 50 0.135 80 66 - 123% PASS qcb - 62 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB114 NA 38.3 1 0.072 0.2 ng/dry g 50 0 77 63 - 124% PASS PCB118 NA 35.1 1 0.069 0.2 ng/dry g 50 0 70 68 - 123% PASS PCB119 NA 27 1 0.071 0.2 ng/dry g 50 0 54 66 - 125% FAIL M PCB123 NA 35.8 1 0.018 0.2 ng/dry g 50 0 72 73 - 117% FAIL M PCB126 NA 48.9 1 0.086 0.2 ng/dry g 50 0 98 55 - 150% PASS PCB128 NA 59 1 0.081 0.2 ng/dry g 50 0 118 67 - 135% PASS PCB138 NA 52.6 1 0.057 0.2 ng/dry g 50 0.46 104 61 - 135% PASS PCB141 NA 44 1 0.1 0.2 ng/dry g 50 0 88 67 - 126% PASS
PCB149 NA 41.2 1 0.092 0.2 ng/dry g 50 0.17 82 64 - 123% PASS PCB151 NA 39.9 1 0.073 0.2 ng/dry g 50 0 80 69 - 125% PASS PCB153 NA 53.4 1 0.065 0.2 ng/dry g 50 0.677 105 74 - 126% PASS PCB156 NA 55 1 0.089 0.2 ng/dry g 50 0 110 61 - 143% PASS PCB157 NA 57.2 1 0.103 0.2 ng/dry g 50 0 114 61 - 130% PASS PCB158 NA 60 1 0.074 0.2 ng/dry g 50 0 120 68 - 128% PASS PCB167 NA 40.8 1 0.049 0.2 ng/dry g 50 0 82 68 - 129% PASS PCB168+132 NA 87.4 1 0.094 0.2 ng/dry g 100 0 87 68 - 118% PASS PCB169 NA 42.2 1 0.116 0.2 ng/dry g 50 0 84 50 - 163% PASS PCB170 NA 42.1 1 0.118 0.25 ng/dry g 50 0 84 69 - 132% PASS PCB174 NA 49.4 1 0.12 0.25 ng/dry g 50 0.223 98 74 - 122% PASS PCB177 NA 54.4 1 0.085 0.25 ng/dry g 50 0 109 74 - 128% PASS PCB180 NA 51.3 1 0.154 0.25 ng/dry g 50 0.676 101 75 - 128% PASS PCB183 NA 51.6 1 0.056 0.25 ng/dry g 50 0 103 69 - 130% PASS PCB187 NA 54.3 1 0.168 0.25 ng/dry g 50 0.508 108 77 - 122% PASS PCB189 NA 49.9 1 0.109 0.25 ng/dry g 50 0 100 61 - 157% PASS PCB194 NA 48.1 1 0.164 0.25 ng/dry g 50 0 96 58 - 154% PASS PCB195 NA 53.8 1 0.093 0.25 ng/dry g 50 0 108 61 - 140% PASS qcb - 63 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB199(200) NA 58.6 1 0.12 0.25 ng/dry g 50 0 117 71 - 119% PASS PCB201 NA 37.5 1 0.104 0.25 ng/dry g 50 0 75 58 - 136% PASS PCB206 NA 42.3 1 0.155 0.25 ng/dry g 50 0 85 62 - 143% PASS PCB209 NA 44.1 1 0.12 0.25 ng/dry g 50 0 88 63 - 133% PASS qcb - 64 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 PCB003 NA 36.2 1 0.1 0.2 ng/dry g 50 0 72 51 - 134% PASS 4 30 PASS PCB008 NA 31 1 0.017 0.2 ng/dry g 50 0 62 55 - 127% PASS 0 30 PASS PCB018 NA 35.6 1 0.029 0.2 ng/dry g 50 0 71 69 - 115% PASS 3 30 PASS PCB028 NA 39 1 0.023 0.2 ng/dry g 50 0 78 58 - 127% PASS 1 30 PASS PCB031 NA 32.1 1 0.1 0.2 ng/dry g 50 0 64 52 - 135% PASS 0 30 PASS PCB033 NA 32.1 1 0.1 0.2 ng/dry g 50 0 64 64 - 127% PASS 2 30 PASS PCB037 NA 47.7 1 0.06 0.2 ng/dry g 50 0 95 70 - 120% PASS 0 30 PASS PCB044 NA 37 1 0.028 0.2 ng/dry g 50 0 74 72 - 112% PASS 1 30 PASS PCB049 NA 37.6 1 0.036 0.2 ng/dry g 50 0 75 68 - 119% PASS 0 30 PASS PCB052 NA 35.6 1 0.012 0.2 ng/dry g 50 0 71 75 - 113% FAIL 3 30 PASS M PCB056(060) NA 30 1 0.1 0.2 ng/dry g 50 0 60 68 - 120% FAIL 0 30 PASS M PCB066 NA 31.9 1 0.027 0.2 ng/dry g 50 0 64 72 - 115% FAIL 3 30 PASS M PCB070 NA 31.8 1 0.023 0.2 ng/dry g 50 0 64 67 - 125% FAIL 8 30 PASS M PCB074 NA 31.9 1 0.021 0.2 ng/dry g 50 0 64 69 - 118% FAIL 2 30 PASS M PCB077 NA 56 1 0.018 0.2 ng/dry g 50 0 112 63 - 127% PASS 1 30 PASS PCB081 NA 44.7 1 0.084 0.2 ng/dry g 50 0 89 67 - 125% PASS 3 30 PASS PCB087 NA 29.3 1 0.081 0.2 ng/dry g 50 0 59 71 - 116% FAIL 5 30 PASS M PCB095 NA 43.3 1 0.1 0.2 ng/dry g 50 0 87 74 - 113% PASS 2 30 PASS PCB097 NA 32 1 0.1 0.2 ng/dry g 50 0 64 68 - 129% FAIL 5 30 PASS M PCB099 NA 37.5 1 0.028 0.2 ng/dry g 50 0 75 75 - 117% PASS 3 30 PASS PCB101 NA 34.6 1 0.027 0.2 ng/dry g 50 0 69 74 - 120% FAIL 8 30 PASS M PCB105 NA 57.8 1 0.047 0.2 ng/dry g 50 0 116 64 - 126% PASS 7 30 PASS PCB110 NA 40.5 1 0.074 0.2 ng/dry g 50 0.135 81 66 - 123% PASS 1 30 PASS qcb - 65 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB114 NA 40.6 1 0.072 0.2 ng/dry g 50 0 81 63 - 124% PASS 5 30 PASS PCB118 NA 36.4 1 0.069 0.2 ng/dry g 50 0 73 68 - 123% PASS 4 30 PASS PCB119 NA 25.7 1 0.071 0.2 ng/dry g 50 0 51 66 - 125% FAIL 6 30 PASS M PCB123 NA 35.8 1 0.018 0.2 ng/dry g 50 0 72 73 - 117% FAIL 0 30 PASS M PCB126 NA 46.5 1 0.086 0.2 ng/dry g 50 0 93 55 - 150% PASS 5 30 PASS PCB128 NA 62 1 0.081 0.2 ng/dry g 50 0 124 67 - 135% PASS 5 30 PASS PCB138 NA 48.8 1 0.057 0.2 ng/dry g 50 0.46 97 61 - 135% PASS 7 30 PASS PCB141 NA 42.7 1 0.1 0.2 ng/dry g 50 0 85 67 - 126% PASS 3 30 PASS PCB149 NA 41.5 1 0.092 0.2 ng/dry g 50 0.17 83 64 - 123% PASS 1 30 PASS PCB151 NA 40.1 1 0.073 0.2 ng/dry g 50 0 80 69 - 125% PASS 0 30 PASS PCB153 NA 52 1 0.065 0.2 ng/dry g 50 0.677 103 74 - 126% PASS 2 30 PASS PCB156 NA 49.6 1 0.089 0.2 ng/dry g 50 0 99 61 - 143% PASS 11 30 PASS PCB157 NA 56.5 1 0.103 0.2 ng/dry g 50 0 113 61 - 130% PASS 1 30 PASS PCB158 NA 57.7 1 0.074 0.2 ng/dry g 50 0 115 68 - 128% PASS 4 30 PASS PCB167 NA 46.8 1 0.049 0.2 ng/dry g 50 0 94 68 - 129% PASS 14 30 PASS PCB168+132 NA 84.3 1 0.094 0.2 ng/dry g 100 0 84 68 - 118% PASS 4 30 PASS PCB169 NA 42.7 1 0.116 0.2 ng/dry g 50 0 85 50 - 163% PASS 1 30 PASS PCB170 NA 45.4 1 0.118 0.25 ng/dry g 50 0 91 69 - 132% PASS 8 30 PASS PCB174 NA 50.6 1 0.12 0.25 ng/dry g 50 0.223 101 74 - 122% PASS 3 30 PASS PCB177 NA 54.7 1 0.085 0.25 ng/dry g 50 0 109 74 - 128% PASS 0 30 PASS PCB180 NA 52.6 1 0.154 0.25 ng/dry g 50 0.676 104 75 - 128% PASS 3 30 PASS PCB183 NA 48.9 1 0.056 0.25 ng/dry g 50 0 98 69 - 130% PASS 5 30 PASS PCB187 NA 50.5 1 0.168 0.25 ng/dry g 50 0.508 100 77 - 122% PASS 8 30 PASS PCB189 NA 45.6 1 0.109 0.25 ng/dry g 50 0 91 61 - 157% PASS 9 30 PASS PCB194 NA 48.5 1 0.164 0.25 ng/dry g 50 0 97 58 - 154% PASS 1 30 PASS PCB195 NA 50.5 1 0.093 0.25 ng/dry g 50 0 101 61 - 140% PASS 7 30 PASS qcb - 66 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB199(200) NA 49.6 1 0.12 0.25 ng/dry g 50 0 99 71 - 119% PASS 17 30 PASS PCB201 NA 45.9 1 0.104 0.25 ng/dry g 50 0 92 58 - 136% PASS 20 30 PASS PCB206 NA 46.3 1 0.155 0.25 ng/dry g 50 0 93 62 - 143% PASS 9 30 PASS PCB209 NA 43.3 1 0.12 0.25 ng/dry g 50 0 87 63 - 133% PASS 1 30 PASS qcb - 67 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 PCB003 NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
PCB008 NA ND 1 0.017 0.2 ng/dry g 0 30 PASS
PCB018 NA ND 1 0.029 0.2 ng/dry g 0 30 PASS
PCB028 NA ND 1 0.023 0.2 ng/dry g 0 30 PASS
PCB031 NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
PCB033 NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
PCB037 NA ND 1 0.06 0.2 ng/dry g 0 30 PASS
PCB044 NA ND 1 0.028 0.2 ng/dry g 0 30 PASS
PCB049 NA ND 1 0.036 0.2 ng/dry g 0 30 PASS
PCB052 NA ND 1 0.012 0.2 ng/dry g 0 30 PASS
PCB056(060) NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
PCB066 NA ND 1 0.027 0.2 ng/dry g 0 30 PASS
PCB070 NA ND 1 0.023 0.2 ng/dry g 0 30 PASS
PCB074 NA ND 1 0.021 0.2 ng/dry g 0 30 PASS
PCB077 NA ND 1 0.018 0.2 ng/dry g 0 30 PASS
PCB081 NA ND 1 0.084 0.2 ng/dry g 0 30 PASS
PCB087 NA ND 1 0.081 0.2 ng/dry g 0 30 PASS
PCB095 NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
PCB097 NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
PCB099 NA ND 1 0.028 0.2 ng/dry g 0 30 PASS
PCB101 NA ND 1 0.027 0.2 ng/dry g 0 30 PASS
PCB105 NA ND 1 0.047 0.2 ng/dry g 0 30 PASS
PCB110 NA 0.12 1 0.074 0.2 ng/dry g 12 30 PASS J
qcb - 68 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB114 NA ND 1 0.072 0.2 ng/dry g 0 30 PASS
PCB118 NA ND 1 0.069 0.2 ng/dry g 0 30 PASS
PCB119 NA ND 1 0.071 0.2 ng/dry g 0 30 PASS
PCB123 NA ND 1 0.018 0.2 ng/dry g 0 30 PASS
PCB126 NA ND 1 0.086 0.2 ng/dry g 0 30 PASS
PCB128 NA ND 1 0.081 0.2 ng/dry g 0 30 PASS
PCB138 NA 0.275 1 0.057 0.2 ng/dry g 50 30 FAIL SL
PCB141 NA ND 1 0.1 0.2 ng/dry g 0 30 PASS
PCB149 NA 0.115 1 0.092 0.2 ng/dry g 39 30 FAIL J,SL
PCB151 NA ND 1 0.073 0.2 ng/dry g 0 30 PASS
PCB153 NA ND 1 0.065 0.2 ng/dry g 165 30 FAIL SL
PCB156 NA ND 1 0.089 0.2 ng/dry g 0 30 PASS
PCB157 NA ND 1 0.103 0.2 ng/dry g 0 30 PASS
PCB158 NA ND 1 0.074 0.2 ng/dry g 0 30 PASS
PCB167 NA ND 1 0.049 0.2 ng/dry g 0 30 PASS
PCB168+132 NA ND 1 0.094 0.2 ng/dry g 0 30 PASS
PCB169 NA ND 1 0.116 0.2 ng/dry g 0 30 PASS
PCB170 NA ND 1 0.118 0.25 ng/dry g 0 30 PASS
PCB174 NA 0.171 1 0.12 0.25 ng/dry g 26 30 PASS J
PCB177 NA ND 1 0.085 0.25 ng/dry g 0 30 PASS
PCB180 NA 1.13 1 0.154 0.25 ng/dry g 50 30 FAIL SL
PCB183 NA ND 1 0.056 0.25 ng/dry g 0 30 PASS
PCB187 NA 0.563 1 0.168 0.25 ng/dry g 10 30 PASS
PCB189 NA ND 1 0.109 0.25 ng/dry g 0 30 PASS
PCB194 NA ND 1 0.164 0.25 ng/dry g 0 30 PASS
PCB195 NA ND 1 0.093 0.25 ng/dry g 0 30 PASS
qcb - 69 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog PCB199(200) NA ND 1 0.12 0.25 ng/dry g 0 30 PASS
PCB201 NA ND 1 0.104 0.25 ng/dry g 0 30 PASS
PCB206 NA ND 1 0.155 0.25 ng/dry g 0 30 PASS
PCB209 NA ND 1 0.12 0.25 ng/dry g 0 30 PASS
qcb - 70 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Polynuclear Aromatic Hydrocarbons ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (d10-Acenaphthene) NA 92 1 % Recovery 100 92 50 - 112% PASS (d10-Phenanthrene) NA 97 1 % Recovery 100 97 59 - 121% PASS (d12-Chrysene) NA 77 1 % Recovery 100 77 52 - 144% PASS (d12-Perylene) NA 50 1 % Recovery 100 50 50 - 150% PASS (d8-Naphthalene) NA 80 1 % Recovery 100 80 31 - 106% PASS 1-Methylnaphthalene NA ND 1 0.084 0.5 ng/dry g
1-Methylphenanthrene NA ND 1 0.076 0.5 ng/dry g
2,3,5-Trimethylnaphthalene NA ND 1 0.059 0.5 ng/dry g
2,6-Dimethylnaphthalene NA ND 1 0.065 0.5 ng/dry g
2-Methylnaphthalene NA ND 1 0.106 0.5 ng/dry g
Acenaphthene NA ND 1 0.078 0.5 ng/dry g
Acenaphthylene NA ND 1 0.058 0.5 ng/dry g
Anthracene NA ND 1 0.046 0.5 ng/dry g
Benz[a]anthracene NA ND 1 0.107 0.5 ng/dry g
Benzo[a]pyrene NA ND 1 0.106 0.5 ng/dry g
Benzo[b]fluoranthene NA ND 1 0.063 0.5 ng/dry g
Benzo[e]pyrene NA ND 1 0.098 0.5 ng/dry g
Benzo[g,h,i]perylene NA ND 1 0.093 0.5 ng/dry g
Benzo[k]fluoranthene NA ND 1 0.111 0.5 ng/dry g
Biphenyl NA ND 1 0.092 0.5 ng/dry g
Chrysene NA ND 1 0.067 0.5 ng/dry g
Dibenz[a,h]anthracene NA ND 1 0.106 0.5 ng/dry g
Dibenzothiophene NA ND 1 0.2 0.5 ng/dry g
qcb - 71 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Fluoranthene NA ND 1 0.035 0.5 ng/dry g
Fluorene NA ND 1 0.068 0.5 ng/dry g
Indeno[1,2,3-cd]pyrene NA ND 1 0.087 0.5 ng/dry g
Naphthalene NA ND 1 0.187 0.5 ng/dry g
Perylene NA ND 1 0.114 0.5 ng/dry g
Phenanthrene NA ND 1 0.074 0.5 ng/dry g
Pyrene NA ND 1 0.048 0.5 ng/dry g
qcb - 72 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (d10-Acenaphthene) NA 77 1 % Recovery 100 0 77 50 - 112% PASS (d10-Phenanthrene) NA 92 1 % Recovery 100 0 92 59 - 121% PASS (d12-Chrysene) NA 69 1 % Recovery 100 0 69 52 - 144% PASS (d12-Perylene) NA 86 1 % Recovery 100 0 86 50 - 150% PASS (d8-Naphthalene) NA 64 1 % Recovery 100 0 64 31 - 106% PASS 1-Methylnaphthalene NA 377 1 0.084 0.5 ng/dry g 500 0 75 40 - 117% PASS 1-Methylphenanthrene NA 415 1 0.076 0.5 ng/dry g 500 0 83 78 - 129% PASS 2,3,5-Trimethylnaphthalene NA 451 1 0.059 0.5 ng/dry g 500 0 90 58 - 124% PASS 2,6-Dimethylnaphthalene NA 418 1 0.065 0.5 ng/dry g 500 0 84 48 - 120% PASS 2-Methylnaphthalene NA 296 1 0.106 0.5 ng/dry g 500 0 59 42 - 116% PASS Acenaphthene NA 313 1 0.078 0.5 ng/dry g 500 0 63 50 - 120% PASS Acenaphthylene NA 407 1 0.058 0.5 ng/dry g 500 0 81 51 - 114% PASS Anthracene NA 414 1 0.046 0.5 ng/dry g 500 0 83 70 - 113% PASS Benz[a]anthracene NA 505 1 0.107 0.5 ng/dry g 500 0 101 54 - 152% PASS Benzo[a]pyrene NA 376 1 0.106 0.5 ng/dry g 500 0 75 36 - 149% PASS Benzo[b]fluoranthene NA 510 1 0.063 0.5 ng/dry g 500 0 102 38 - 161% PASS Benzo[e]pyrene NA 432 1 0.098 0.5 ng/dry g 500 0 86 44 - 148% PASS Benzo[g,h,i]perylene NA 490 1 0.093 0.5 ng/dry g 500 0 98 55 - 143% PASS Benzo[k]fluoranthene NA 474 1 0.111 0.5 ng/dry g 500 0 95 44 - 148% PASS Biphenyl NA 399 1 0.092 0.5 ng/dry g 500 0 80 45 - 119% PASS Chrysene NA 512 1 0.067 0.5 ng/dry g 500 0 102 57 - 137% PASS Dibenz[a,h]anthracene NA 481 1 0.106 0.5 ng/dry g 500 0 96 56 - 148% PASS Dibenzothiophene NA 485 1 0.2 0.5 ng/dry g 500 0 97 69 - 118% PASS qcb - 73 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Fluoranthene NA 507 1 0.035 0.5 ng/dry g 500 0 101 77 - 131% PASS Fluorene NA 508 1 0.068 0.5 ng/dry g 500 0 102 57 - 127% PASS Indeno[1,2,3-cd]pyrene NA 551 1 0.087 0.5 ng/dry g 500 0 110 52 - 150% PASS Naphthalene NA 285 1 0.187 0.5 ng/dry g 500 0 57 33 - 112% PASS Perylene NA 499 1 0.114 0.5 ng/dry g 500 0 100 40 - 141% PASS Phenanthrene NA 499 1 0.074 0.5 ng/dry g 500 0 100 71 - 121% PASS Pyrene NA 487 1 0.048 0.5 ng/dry g 500 0 97 77 - 132% PASS qcb - 74 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (d10-Acenaphthene) NA 79 1 % Recovery 100 0 79 50 - 112% PASS 3 30 PASS (d10-Phenanthrene) NA 90 1 % Recovery 100 0 90 59 - 121% PASS 2 30 PASS (d12-Chrysene) NA 74 1 % Recovery 100 0 74 52 - 144% PASS 7 30 PASS (d12-Perylene) NA 85 1 % Recovery 100 0 85 50 - 150% PASS 1 30 PASS (d8-Naphthalene) NA 67 1 % Recovery 100 0 67 31 - 106% PASS 5 30 PASS 1-Methylnaphthalene NA 394 1 0.084 0.5 ng/dry g 500 0 79 40 - 117% PASS 5 30 PASS 1-Methylphenanthrene NA 493 1 0.076 0.5 ng/dry g 500 0 99 78 - 129% PASS 18 30 PASS 2,3,5-Trimethylnaphthalene NA 467 1 0.059 0.5 ng/dry g 500 0 93 58 - 124% PASS 3 30 PASS 2,6-Dimethylnaphthalene NA 434 1 0.065 0.5 ng/dry g 500 0 87 48 - 120% PASS 4 30 PASS 2-Methylnaphthalene NA 342 1 0.106 0.5 ng/dry g 500 0 68 42 - 116% PASS 14 30 PASS Acenaphthene NA 337 1 0.078 0.5 ng/dry g 500 0 67 50 - 120% PASS 6 30 PASS Acenaphthylene NA 441 1 0.058 0.5 ng/dry g 500 0 88 51 - 114% PASS 8 30 PASS Anthracene NA 439 1 0.046 0.5 ng/dry g 500 0 88 70 - 113% PASS 6 30 PASS Benz[a]anthracene NA 469 1 0.107 0.5 ng/dry g 500 0 94 54 - 152% PASS 7 30 PASS Benzo[a]pyrene NA 353 1 0.106 0.5 ng/dry g 500 0 71 36 - 149% PASS 5 30 PASS Benzo[b]fluoranthene NA 464 1 0.063 0.5 ng/dry g 500 0 93 38 - 161% PASS 9 30 PASS Benzo[e]pyrene NA 459 1 0.098 0.5 ng/dry g 500 0 92 44 - 148% PASS 7 30 PASS Benzo[g,h,i]perylene NA 406 1 0.093 0.5 ng/dry g 500 0 81 55 - 143% PASS 19 30 PASS Benzo[k]fluoranthene NA 469 1 0.111 0.5 ng/dry g 500 0 94 44 - 148% PASS 1 30 PASS Biphenyl NA 409 1 0.092 0.5 ng/dry g 500 0 82 45 - 119% PASS 2 30 PASS Chrysene NA 488 1 0.067 0.5 ng/dry g 500 0 98 57 - 137% PASS 4 30 PASS Dibenz[a,h]anthracene NA 421 1 0.106 0.5 ng/dry g 500 0 84 56 - 148% PASS 13 30 PASS Dibenzothiophene NA 480 1 0.2 0.5 ng/dry g 500 0 96 69 - 118% PASS 1 30 PASS qcb - 75 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Fluoranthene NA 453 1 0.035 0.5 ng/dry g 500 0 91 77 - 131% PASS 10 30 PASS Fluorene NA 513 1 0.068 0.5 ng/dry g 500 0 103 57 - 127% PASS 1 30 PASS Indeno[1,2,3-cd]pyrene NA 557 1 0.087 0.5 ng/dry g 500 0 111 52 - 150% PASS 1 30 PASS Naphthalene NA 284 1 0.187 0.5 ng/dry g 500 0 57 33 - 112% PASS 0 30 PASS Perylene NA 496 1 0.114 0.5 ng/dry g 500 0 99 40 - 141% PASS 1 30 PASS Phenanthrene NA 470 1 0.074 0.5 ng/dry g 500 0 94 71 - 121% PASS 6 30 PASS Pyrene NA 508 1 0.048 0.5 ng/dry g 500 0 102 77 - 132% PASS 5 30 PASS qcb - 76 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94868-CRM1 QAQC CRM - SRM 1944 Matrix: Sediment Sampled: Received:

Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 13-Feb-22 (d10-Acenaphthene) NA 80 1 % Recovery 100 80 44 - 144% PASS (d10-Phenanthrene) NA 89 1 % Recovery 100 89 60 - 134% PASS (d12-Chrysene) NA 57 1 % Recovery 100 57 27 - 158% PASS (d12-Perylene) NA 76 1 % Recovery 100 76 17 - 160% PASS (d8-Naphthalene) NA 60 1 % Recovery 100 60 19 - 130% PASS 1-Methylnaphthalene NA 334 1 0.084 0.5 ng/dry g 470 71 25 - 128% PASS 1-Methylphenanthrene NA 1620 1 0.076 0.5 ng/dry g 1700 95 37 - 110% PASS 2-Methylnaphthalene NA 569 1 0.106 0.5 ng/dry g 740 77 28 - 123% PASS Acenaphthene NA 286 1 0.078 0.5 ng/dry g 390 73 22 - 110% PASS Anthracene NA 827 1 0.046 0.5 ng/dry g 1130 73 47 - 133% PASS Benz[a]anthracene NA 4770 1 0.107 0.5 ng/dry g 4720 101 31 - 145% PASS Benzo[a]pyrene NA 3460 1 0.106 0.5 ng/dry g 4300 80 22 - 127% PASS Benzo[b]fluoranthene NA 3980 1 0.063 0.5 ng/dry g 3870 103 36 - 160% PASS Benzo[e]pyrene NA 2340 1 0.098 0.5 ng/dry g 3280 71 38 - 147% PASS Benzo[g,h,i]perylene NA 2860 1 0.093 0.5 ng/dry g 2840 101 41 - 144% PASS Benzo[k]fluoranthene NA 3880 1 0.111 0.5 ng/dry g 4390 88 32 - 159% PASS Biphenyl NA 178 1 0.092 0.5 ng/dry g 250 71 27 - 112% PASS Chrysene NA 5120 1 0.067 0.5 ng/dry g 5900 87 44 - 162% PASS Dibenz[a,h]anthracene NA 1010 1 0.106 0.5 ng/dry g 924 109 22 - 135% PASS Dibenzothiophene NA 522 1 0.2 0.5 ng/dry g 500 104 78 - 170% PASS Fluoranthene NA 7750 1 0.035 0.5 ng/dry g 8920 87 31 - 141% PASS Fluorene NA 434 1 0.068 0.5 ng/dry g 480 90 24 - 110% PASS Indeno[1,2,3-cd]pyrene NA 2580 1 0.087 0.5 ng/dry g 2780 93 60 - 164% PASS qcb - 77 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Naphthalene NA 789 1 0.187 0.5 ng/dry g 1280 62 19 - 126% PASS Perylene NA 930 1 0.114 0.5 ng/dry g 1170 79 26 - 114% PASS Phenanthrene NA 3980 1 0.074 0.5 ng/dry g 5270 76 51 - 121% PASS Pyrene NA 7700 1 0.048 0.5 ng/dry g 9700 79 31 - 126% PASS qcb - 78 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS1 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (d10-Acenaphthene) NA 66 1 % Recovery 100 0 66 23 - 117% PASS (d10-Phenanthrene) NA 89 1 % Recovery 100 0 89 24 - 127% PASS (d12-Chrysene) NA 65 1 % Recovery 100 0 65 22 - 148% PASS (d12-Perylene) NA 91 1 % Recovery 100 0 91 50 - 150% PASS (d8-Naphthalene) NA 49 1 % Recovery 100 0 49 8 - 105% PASS 1-Methylnaphthalene NA 318 1 0.084 0.5 ng/dry g 500 0.592 63 32 - 119% PASS 1-Methylphenanthrene NA 604 1 0.076 0.5 ng/dry g 500 0.787 121 63 - 132% PASS 2,3,5-Trimethylnaphthalene NA 418 1 0.059 0.5 ng/dry g 500 0.383 84 80 - 120% PASS 2,6-Dimethylnaphthalene NA 374 1 0.065 0.5 ng/dry g 500 0.654 75 38 - 123% PASS 2-Methylnaphthalene NA 401 1 0.106 0.5 ng/dry g 500 1.13 80 33 - 118% PASS Acenaphthene NA 347 1 0.078 0.5 ng/dry g 500 0 69 35 - 128% PASS Acenaphthylene NA 426 1 0.058 0.5 ng/dry g 500 0.278 85 39 - 126% PASS Anthracene NA 396 1 0.046 0.5 ng/dry g 500 0.506 79 55 - 121% PASS Benz[a]anthracene NA 575 1 0.107 0.5 ng/dry g 500 3.7 114 57 - 149% PASS Benzo[a]pyrene NA 376 1 0.106 0.5 ng/dry g 500 3.89 74 46 - 149% PASS Benzo[b]fluoranthene NA 439 1 0.063 0.5 ng/dry g 500 5.4 87 52 - 140% PASS Benzo[e]pyrene NA 440 1 0.098 0.5 ng/dry g 500 6.06 87 47 - 146% PASS Benzo[g,h,i]perylene NA 466 1 0.093 0.5 ng/dry g 500 9.34 91 61 - 130% PASS Benzo[k]fluoranthene NA 401 1 0.111 0.5 ng/dry g 500 5.98 79 54 - 142% PASS Biphenyl NA 347 1 0.092 0.5 ng/dry g 500 0.738 69 31 - 126% PASS Chrysene NA 499 1 0.067 0.5 ng/dry g 500 3.51 99 53 - 143% PASS Dibenz[a,h]anthracene NA 445 1 0.106 0.5 ng/dry g 500 10.1 87 61 - 154% PASS Dibenzothiophene NA 471 1 0.2 0.5 ng/dry g 500 0 94 46 - 126% PASS qcb - 79 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Fluoranthene NA 436 1 0.035 0.5 ng/dry g 500 8.08 86 48 - 164% PASS Fluorene NA 514 1 0.068 0.5 ng/dry g 500 0.213 103 46 - 132% PASS Indeno[1,2,3-cd]pyrene NA 452 1 0.087 0.5 ng/dry g 500 15 87 44 - 180% PASS Naphthalene NA 303 1 0.187 0.5 ng/dry g 500 0.695 60 16 - 120% PASS Perylene NA 452 1 0.114 0.5 ng/dry g 500 1.53 90 49 - 136% PASS Phenanthrene NA 435 1 0.074 0.5 ng/dry g 500 2.84 86 71 - 123% PASS Pyrene NA 513 1 0.048 0.5 ng/dry g 500 9.55 101 63 - 146% PASS qcb - 80 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-MS2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (d10-Acenaphthene) NA 76 1 % Recovery 100 0 76 23 - 117% PASS 14 30 PASS (d10-Phenanthrene) NA 94 1 % Recovery 100 0 94 24 - 127% PASS 5 30 PASS (d12-Chrysene) NA 65 1 % Recovery 100 0 65 22 - 148% PASS 0 30 PASS (d12-Perylene) NA 95 1 % Recovery 100 0 95 50 - 150% PASS 4 30 PASS (d8-Naphthalene) NA 59 1 % Recovery 100 0 59 8 - 105% PASS 19 30 PASS 1-Methylnaphthalene NA 374 1 0.084 0.5 ng/dry g 500 0.592 75 32 - 119% PASS 17 30 PASS 1-Methylphenanthrene NA 630 1 0.076 0.5 ng/dry g 500 0.787 126 63 - 132% PASS 4 30 PASS 2,3,5-Trimethylnaphthalene NA 471 1 0.059 0.5 ng/dry g 500 0.383 94 80 - 120% PASS 11 30 PASS 2,6-Dimethylnaphthalene NA 435 1 0.065 0.5 ng/dry g 500 0.654 87 38 - 123% PASS 15 30 PASS 2-Methylnaphthalene NA 385 1 0.106 0.5 ng/dry g 500 1.13 77 33 - 118% PASS 4 30 PASS Acenaphthene NA 303 1 0.078 0.5 ng/dry g 500 0 61 35 - 128% PASS 12 30 PASS Acenaphthylene NA 419 1 0.058 0.5 ng/dry g 500 0.278 84 39 - 126% PASS 1 30 PASS Anthracene NA 428 1 0.046 0.5 ng/dry g 500 0.506 85 55 - 121% PASS 7 30 PASS Benz[a]anthracene NA 502 1 0.107 0.5 ng/dry g 500 3.7 100 57 - 149% PASS 13 30 PASS Benzo[a]pyrene NA 447 1 0.106 0.5 ng/dry g 500 3.89 89 46 - 149% PASS 18 30 PASS Benzo[b]fluoranthene NA 383 1 0.063 0.5 ng/dry g 500 5.4 76 52 - 140% PASS 13 30 PASS Benzo[e]pyrene NA 458 1 0.098 0.5 ng/dry g 500 6.06 90 47 - 146% PASS 3 30 PASS Benzo[g,h,i]perylene NA 455 1 0.093 0.5 ng/dry g 500 9.34 89 61 - 130% PASS 2 30 PASS Benzo[k]fluoranthene NA 424 1 0.111 0.5 ng/dry g 500 5.98 84 54 - 142% PASS 6 30 PASS Biphenyl NA 418 1 0.092 0.5 ng/dry g 500 0.738 83 31 - 126% PASS 18 30 PASS Chrysene NA 492 1 0.067 0.5 ng/dry g 500 3.51 98 53 - 143% PASS 1 30 PASS Dibenz[a,h]anthracene NA 487 1 0.106 0.5 ng/dry g 500 10.1 95 61 - 154% PASS 9 30 PASS Dibenzothiophene NA 510 1 0.2 0.5 ng/dry g 500 0 102 46 - 126% PASS 8 30 PASS qcb - 81 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Fluoranthene NA 485 1 0.035 0.5 ng/dry g 500 8.08 95 48 - 164% PASS 10 30 PASS Fluorene NA 579 1 0.068 0.5 ng/dry g 500 0.213 116 46 - 132% PASS 12 30 PASS Indeno[1,2,3-cd]pyrene NA 465 1 0.087 0.5 ng/dry g 500 15 90 44 - 180% PASS 3 30 PASS Naphthalene NA 225 1 0.187 0.5 ng/dry g 500 0.695 45 16 - 120% PASS 29 30 PASS Perylene NA 471 1 0.114 0.5 ng/dry g 500 1.53 94 49 - 136% PASS 4 30 PASS Phenanthrene NA 420 1 0.074 0.5 ng/dry g 500 2.84 83 71 - 123% PASS 4 30 PASS Pyrene NA 484 1 0.048 0.5 ng/dry g 500 9.55 95 63 - 146% PASS 6 30 PASS qcb - 82 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94874-R2 2021-E2-FLDCHNL-01 Matrix: Sediment Sampled: 07-Jan-22 10:35 Received: 07-Jan-22 Method: EPA 8270E Batch ID: O-34030 Prepared: 07-Feb-22 Analyzed: 14-Feb-22 (d10-Acenaphthene) NA 76 1 % Recovery 100 76 23 - 117% PASS 4 30 PASS (d10-Phenanthrene) NA 94 1 % Recovery 100 94 24 - 127% PASS 2 30 PASS (d12-Chrysene) NA 59 1 % Recovery 100 59 22 - 148% PASS 5 30 PASS (d12-Perylene) NA 98 1 % Recovery 100 98 50 - 150% PASS 3 30 PASS (d8-Naphthalene) NA 56 1 % Recovery 100 56 8 - 105% PASS 7 30 PASS 1-Methylnaphthalene NA 0.255 1 0.084 0.5 ng/dry g 80 30 FAIL J,SL 1-Methylphenanthrene NA 0.434 1 0.076 0.5 ng/dry g 58 30 FAIL J,SL 2,3,5-Trimethylnaphthalene NA 0.129 1 0.059 0.5 ng/dry g 99 30 FAIL J,SL 2,6-Dimethylnaphthalene NA 0.195 1 0.065 0.5 ng/dry g 108 30 FAIL J,SL 2-Methylnaphthalene NA 0.641 1 0.106 0.5 ng/dry g 55 30 FAIL SL Acenaphthene NA ND 1 0.078 0.5 ng/dry g 0 30 PASS
Acenaphthylene NA 0.247 1 0.058 0.5 ng/dry g 12 30 PASS J Anthracene NA 0.417 1 0.046 0.5 ng/dry g 19 30 PASS J
Benz[a]anthracene NA 3.25 1 0.107 0.5 ng/dry g 13 30 PASS Benzo[a]pyrene NA 3.83 1 0.106 0.5 ng/dry g 2 30 PASS
Benzo[b]fluoranthene NA 5.1 1 0.063 0.5 ng/dry g 6 30 PASS Benzo[e]pyrene NA 4.95 1 0.098 0.5 ng/dry g 20 30 PASS
Benzo[g,h,i]perylene NA 8.71 1 0.093 0.5 ng/dry g 7 30 PASS Benzo[k]fluoranthene NA 5.48 1 0.111 0.5 ng/dry g 9 30 PASS Biphenyl NA 0.52 1 0.092 0.5 ng/dry g 35 30 FAIL SL
Chrysene NA 2.72 1 0.067 0.5 ng/dry g 25 30 PASS
Dibenz[a,h]anthracene NA 9.74 1 0.106 0.5 ng/dry g 4 30 PASS Dibenzothiophene NA ND 1 0.2 0.5 ng/dry g 0 30 PASS
qcb - 83 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Fluoranthene NA 7.7 1 0.035 0.5 ng/dry g 5 30 PASS
Fluorene NA 0.133 1 0.068 0.5 ng/dry g 46 30 FAIL J,SL
Indeno[1,2,3-cd]pyrene NA 14.7 1 0.087 0.5 ng/dry g 2 30 PASS Naphthalene NA 0.742 1 0.187 0.5 ng/dry g 7 30 PASS
Perylene NA 1.3 1 0.114 0.5 ng/dry g 16 30 PASS
Phenanthrene NA 1.82 1 0.074 0.5 ng/dry g 44 30 FAIL NH Pyrene NA 9.14 1 0.048 0.5 ng/dry g 4 30 PASS
qcb - 84 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Pyrethroids
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E-MRM Batch ID: O-34030 Prepared: 21-Feb-22 Analyzed: 24-Feb-22 (d5-Bifenthrin) NA 69 1 % Recovery 100 69 65 - 115% PASS (d5-Fenvalerate) NA 87 1 % Recovery 100 87 40 - 115% PASS Allethrin NA ND 1 0.28 0.5 ng/dry g
Bifenthrin NA ND 1 0.22 0.5 ng/dry g
Cyfluthrin NA ND 1 0.25 0.5 ng/dry g
Cyhalothrin, Total Lambda NA ND 1 0.23 0.5 ng/dry g
Cypermethrin NA ND 1 0.25 0.5 ng/dry g
Danitol (Fenpropathrin) NA ND 1 0.21 0.5 ng/dry g
Deltamethrin/Tralomethrin NA ND 1 0.25 0.5 ng/dry g
Esfenvalerate NA ND 1 0.25 0.5 ng/dry g
Fenvalerate NA ND 1 0.25 0.5 ng/dry g
Permethrin, cis- NA ND 1 0.17 0.5 ng/dry g
Permethrin, trans- NA ND 1 0.22 0.5 ng/dry g
Prallethrin NA ND 1 0.28 0.5 ng/dry g
qcb - 85 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E-MRM Batch ID: O-34030 Prepared: 21-Feb-22 Analyzed: 24-Feb-22 (d5-Bifenthrin) NA 68 1 % Recovery 100 0 68 65 - 115% PASS (d5-Fenvalerate) NA 82 1 % Recovery 100 0 82 40 - 115% PASS Allethrin NA 466 1 0.28 0.5 ng/dry g 500 0 93 46 - 136% PASS Bifenthrin NA 505 1 0.22 0.5 ng/dry g 500 0 101 59 - 133% PASS Cyfluthrin NA 436 1 0.25 0.5 ng/dry g 500 0 87 43 - 130% PASS Cyhalothrin, Total Lambda NA 585 1 0.23 0.5 ng/dry g 500 0 117 36 - 136% PASS Cypermethrin NA 417 1 0.25 0.5 ng/dry g 500 0 83 41 - 126% PASS Danitol (Fenpropathrin) NA 537 1 0.21 0.5 ng/dry g 500 0 107 50 - 150% PASS Deltamethrin/Tralomethrin NA 478 1 0.25 0.5 ng/dry g 500 0 96 42 - 111% PASS Esfenvalerate NA 580 1 0.25 0.5 ng/dry g 500 0 116 56 - 112% FAIL R Fenvalerate NA 547 1 0.25 0.5 ng/dry g 500 0 109 48 - 120% PASS Permethrin, cis- NA 193 1 0.17 0.5 ng/dry g 199 0 97 30 - 151% PASS Permethrin, trans- NA 322 1 0.22 0.5 ng/dry g 296 0 109 42 - 136% PASS Prallethrin NA 571 1 0.28 0.5 ng/dry g 500 0 114 52 - 115% PASS qcb - 86 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 8270E-MRM Batch ID: O-34030 Prepared: 21-Feb-22 Analyzed: 24-Feb-22 (d5-Bifenthrin) NA 70 1 % Recovery 100 0 70 65 - 115% PASS 3 30 PASS (d5-Fenvalerate) NA 77 1 % Recovery 100 0 77 40 - 115% PASS 6 30 PASS Allethrin NA 441 1 0.28 0.5 ng/dry g 500 0 88 46 - 136% PASS 6 30 PASS Bifenthrin NA 531 1 0.22 0.5 ng/dry g 500 0 106 59 - 133% PASS 5 30 PASS Cyfluthrin NA 443 1 0.25 0.5 ng/dry g 500 0 89 43 - 130% PASS 2 30 PASS Cyhalothrin, Total Lambda NA 538 1 0.23 0.5 ng/dry g 500 0 108 36 - 136% PASS 8 30 PASS Cypermethrin NA 434 1 0.25 0.5 ng/dry g 500 0 87 41 - 126% PASS 5 30 PASS Danitol (Fenpropathrin) NA 574 1 0.21 0.5 ng/dry g 500 0 115 50 - 150% PASS 7 30 PASS Deltamethrin/Tralomethrin NA 425 1 0.25 0.5 ng/dry g 500 0 85 42 - 111% PASS 12 30 PASS Esfenvalerate NA 538 1 0.25 0.5 ng/dry g 500 0 108 56 - 112% PASS 7 30 PASS Fenvalerate NA 506 1 0.25 0.5 ng/dry g 500 0 101 48 - 120% PASS 8 30 PASS Permethrin, cis- NA 182 1 0.17 0.5 ng/dry g 199 0 91 30 - 151% PASS 6 30 PASS Permethrin, trans- NA 297 1 0.22 0.5 ng/dry g 296 0 100 42 - 136% PASS 9 30 PASS Prallethrin NA 545 1 0.28 0.5 ng/dry g 500 0 109 52 - 115% PASS 4 30 PASS qcb - 87 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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QUALITY CONTROL REPORT Total Extractable Organics
ANALYTE FRACTION RESULT DF MDL RL UNITS SPIKE SOURCE ACCURACY PRECISION QA CODEc LEVEL RESULT % LIMITS % LIMITS
PHYSIS Project ID: 2109001-002
Client: Wood Environment & Infrastructure Solutions, Inc.

Project: Tijuana River Sediment Management Monitoring Prog Sample ID: 94866-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: SM 5520 E Batch ID: C-52033 Prepared: 24-Jan-22 Analyzed: 26-Jan-22 Oil & Grease NA ND 1 100 200 mg/dry kg
Method: SM 5520 E Batch ID: C-52036 Prepared: 07-Feb-22 Analyzed: 08-Feb-22 TRPH NA ND 1 100 200 mg/dry kg
Sample ID: 94866-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: SM 5520 E Batch ID: C-52033 Prepared: 24-Jan-22 Analyzed: 26-Jan-22 Oil & Grease NA 2650 1 100 200 mg/dry kg 2550 0 104 70 - 130% PASS Method: SM 5520 E Batch ID: C-52036 Prepared: 07-Feb-22 Analyzed: 08-Feb-22 TRPH NA 1670 1 100 200 mg/dry kg 1720 0 97 70 - 130% PASS Sample ID: 94866-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: SM 5520 E Batch ID: C-52033 Prepared: 24-Jan-22 Analyzed: 26-Jan-22 Oil & Grease NA 2490 1 100 200 mg/dry kg 2550 0 98 70 - 130% PASS 6 30 PASS Method: SM 5520 E Batch ID: C-52036 Prepared: 07-Feb-22 Analyzed: 08-Feb-22 TRPH NA 1420 1 100 200 mg/dry kg 1720 0 83 70 - 130% PASS 16 30 PASS Sample ID: 94870-B1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 1664B Batch ID: C-52035 Prepared: 01-Feb-22 Analyzed: 04-Feb-22 Oil & Grease NA ND 1 1 1 mg/L
Sample ID: 94870-BS1 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 1664B Batch ID: C-52035 Prepared: 01-Feb-22 Analyzed: 04-Feb-22 Oil & Grease NA 1140 1 1 1 mg/L 1600 0 71 70 - 110% PASS Sample ID: 94870-BS2 QAQC Procedural Blank Matrix: BlankMatrix Sampled: Received:

Method: EPA 1664B Batch ID: C-52035 Prepared: 01-Feb-22 Analyzed: 04-Feb-22 Oil & Grease NA 33.8 1 1 1 mg/L 40 0 84 70 - 110% PASS 17 30 PASS qcb - 91 of 91 1904 E. Wright Circle, Anaheim CA 92806 main: (714) 602-5320 fax: (714) 602-5321 www.physislabs.com [email protected] CA ELAP #2769

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2201113
Misty Mercier
Tuesday, February 22, 2022
Ft. Collins, Colorado
Physis Environmental Laboratories, Inc.
1904 E Wright Cir
Anaheim, CA 92806
Re: ALS Workorder:

Project Name:

Project Number: 2109001
LIMS Version: 7.026
Five sediment samples were received from Physis Environmental Laboratories, Inc., on 1/12/2022. The samples were scheduled for the following analysis:

Dear Ms. Mercier:

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Gross Alpha/Beta
The results for these analyses are contained in the enclosed reports.

Thank you for your confidence in ALS Environmental. Should you have any questions, please call.

Sincerely,
ALS Environmental
Julie Ellingson
Project Manager
The data contained in the following report have been reviewed and approved by the personnel listed below. In addition, ALS certifies that the analyses reported herein are true, complete and correct within the limits of the methods employed.

Should this laboratory report need to be reproduced, it should be reproduced in full unless written approval has been obtained from ALS Environmental.

ADDRESS 225 Commerce Drive, Fort Collins, Colorado, USA 80524 | PHONE +1 970 490 1511 | FAX +1 970 490 1522 ALS GROUP USA, CORP. Part of the ALS Laboratory Group An ALS Limited Company 1 of 14
For

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Accreditations: ALS Environmental – Fort Collins is accredited by the following accreditation bodies for various testing scopes in accordance with requirements of each accreditation body. All testing is performed under the laboratory management system, which is maintained to meet these requirement and regulations. Please contact the laboratory or accreditation body for the current scope testing parameters.

ALS Environmental – Fort Collins
Accreditation Body License or Certification Number
Arizona AZ0828
California (CA) 2926
Colorado (CO) CO01099
Florida (FL) E87914
Idaho (ID) CO01099
Kansas (KS) E-10381
Kentucky (KY) 90137
Oklahoma 1301
PJLA (DoD ELAP/ISO 170250) 95377
PJLA (DOE-AP/ISO 17025) 95377
Maryland (MD) 285
Missouri (MO) 175
Nebraska(NE) NE-OS-24-13
Nevada (NV) CO010992018-1
New York (NY) 12036
North Dakota (ND) R-057
Oklahoma (OK) 1301
Pennsylvania (PA) 68-03116
Tennessee (TN) TN02976
Texas (TX) T104704241
Utah (UT) CO01099
Washington (WA) C1280
Virginia 460305
40 CFR Part 136: All analyses for Clean Water Act samples are analyzed using the 40 CFR Part 136 specified method and include all the QC requirements.

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2 of 14
ADDRESS 225 Commerce Drive, Fort Collins Colorado 80524 USA ⎜ PHONE +1 970 490 1511 ⎜ FAX +1 970 490 1522 ALS GROUP USA, CORP. Part of the ALS Group An ALS Limited Company 2201113
Gross Alpha/Beta:

The samples were analyzed for gross alpha and beta activity by gas flow proportional counting according to the current revision of SOP 724. Gross alpha results are referenced to 241Am. Gross beta results are referenced to 90Sr/Y.

The radiometric recovery for the matrix spike of sample 2201113-4 is below the lower control limit of 70% at 48.5% for gross alpha and 64.7% for gross beta. All other quality control criteria have been met. ALS does not control on matrix spike recovery. The result for this sample is considered an estimated value and is included in this data package.

All remaining acceptance criteria were met.

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3 of 14
OrderNum: 2201113
Client Name: Physis Environmental Laboratories, Inc.

Client Project Name:

Client Project Number: 2109001
Client PO Number:

Lab Sample
Number
Client Sample
Number
Matrix Date
Collected
Time
Collected
COC Number
Sample Number(s) Cross-Reference Table
ALS -- Fort Collins
2021-E2-BASINSMGL-01 2201113-1 SEDIMEN 07-Jan-22 13:00
2021-E2-BASINTJRVR-01 2201113-2 SEDIMEN 07-Jan-22 9:10
2021-E2-BRWNFL-01 2201113-3 SEDIMEN 07-Jan-22 14:45
2021-E2-FLDCHNL-01 2201113-4 SEDIMEN 07-Jan-22 10:35
2021-E2-SMGLPILOT-01 2201113-5 SEDIMEN 07-Jan-22 13:55

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LIMS Version: 7.026
ALS -- Fort Collins

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4 of 14

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5 of 14
ALS Environmental - Fort Collins

CONDITION OF SAMPLE UPON RECEIPT FORM
Client: Workorder No:

Project Manager: KC

N/A YES NO

1. Are airbills / shipping documents present and/or removable? Tracking number:

2. Are custody seals on shipping containers intact? X

3. Are custody seals on sample containers intact? X

4. Is there a COC (chain‐of‐custody) present? X

6. X

7. Are all samples within holding times for the requested analyses? X

8. Were all sample containers received intact? (not broken or leaking) X

9. Is there sufficient sample for the requested analyses? X

11. Are all aqueous samples preserved correctly, if required? (excluding volatiles) X

13. Were the samples shipped on ice? X

14. Were cooler temperatures measured at 0.1‐6.0o
C? IR gun
used*: #5 RAD ONLY X
Cooler #: 1
Temperature (oC): 0.3
# of custody seals on cooler: 0
External µR/hr reading: 11
Background µR/hr reading: 11
Were external µR/hr readings ≤ two times background and within DOT acceptance criteria? YES * Please provide details here for NO responses to boxes above ‐ for 2 thru 5 & 7 thru 12, notify PM & continue w/ login.

If applicable, was the client contacted? NA Contact: ______________________________________ Date/Time: _______________ Project Manager Signature / Date: ____________________________________________________ Were unpreserved bottles pH checked? NA All client bottle ID's vs ALS lab ID's double‐checked by:

Are all samples requiring no headspace (VOC, GRO, RSK/MEE, radon) free of bubbles > 6 mm (1/4 inch) diameter? (i.e. size of green pea) X
PHYSIS ENVIRONMENTAL LAB 2201113
JME
Are short‐hold samples present?
Date: 1/12/22
X

5. X
Initials:

12. Is the COC in agreement with samples received? (IDs, dates, times, # of samples, # of containers, matrix, requested analyses, etc.)
Sediment was in 500ml poly instead of 4oz glass
Are samples in proper containers for requested analyses? (form 250, Sample Handling Guidelines)

10. X
KC
Form 201r29.xls
(10/15/2019)
*IR Gun #3, VWR SN 170647571
*IR Gun #5, VWR SN 192272629

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7 of 14
Project: 2109001
Sample ID: 2021-E2-BASINSMGL-01
Collection Date: 1/7/2022 13:00
Matrix: SEDIMENT
Analyses Result Qual Units Date Analyzed
Report
Limit
Client: Physis Environmental Laboratories, Inc.

Work Order: 2201113
Dilution
Factor
Lab ID: 2201113-1
ALS -- Fort Collins
Date: 22-Feb-22

SAMPLE SUMMARY REPORT
Percent Moisture:

Legal Location:

Gross Alpha/Beta by GFPC SOP 724 Prep Date: 2/15/2022 PrepBy:BMH GROSS ALPHA 1.37 (+/- 0.64) 0.74 pCi/g NA 2/19/2022 11:46 GROSS BETA 1.59 (+/- 0.63) 0.98 pCi/g NA 2/19/2022 11:46 LIMS Version: 7.026 AR Page 1 of 6
ALS -- Fort Collins

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8 of 14
Project: 2109001
Sample ID: 2021-E2-BASINTJRVR-01
Collection Date: 1/7/2022 09:10
Matrix: SEDIMENT
Analyses Result Qual Units Date Analyzed
Report
Limit
Client: Physis Environmental Laboratories, Inc.

Work Order: 2201113
Dilution
Factor
Lab ID: 2201113-2
ALS -- Fort Collins
Date: 22-Feb-22

SAMPLE SUMMARY REPORT
Percent Moisture:

Legal Location:

Gross Alpha/Beta by GFPC SOP 724 Prep Date: 2/15/2022 PrepBy:BMH GROSS ALPHA 2.1 (+/- 1.1) 1.4 pCi/g NA 2/19/2022 11:46
GROSS BETA ND (+/- 0.96) U 1.99 pCi/g NA 2/19/2022 11:46 LIMS Version: 7.026 AR Page 2 of 6
ALS -- Fort Collins

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9 of 14
Project: 2109001
Sample ID: 2021-E2-BRWNFL-01
Collection Date: 1/7/2022 14:45
Matrix: SEDIMENT
Analyses Result Qual Units Date Analyzed
Report
Limit
Client: Physis Environmental Laboratories, Inc.

Work Order: 2201113
Dilution
Factor
Lab ID: 2201113-3
ALS -- Fort Collins
Date: 22-Feb-22

SAMPLE SUMMARY REPORT
Percent Moisture:

Legal Location:

Gross Alpha/Beta by GFPC SOP 724 Prep Date: 2/15/2022 PrepBy:BMH GROSS ALPHA 1.42 (+/- 0.92) 1.35 pCi/g NA 2/19/2022 11:46 GROSS BETA 2.8 (+/- 1.2) 1.9 pCi/g NA 2/19/2022 11:46
LIMS Version: 7.026 AR Page 3 of 6
ALS -- Fort Collins

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10 of 14
Project: 2109001
Sample ID: 2021-E2-FLDCHNL-01
Collection Date: 1/7/2022 10:35
Matrix: SEDIMENT
Analyses Result Qual Units Date Analyzed
Report
Limit
Client: Physis Environmental Laboratories, Inc.

Work Order: 2201113
Dilution
Factor
Lab ID: 2201113-4
ALS -- Fort Collins
Date: 22-Feb-22

SAMPLE SUMMARY REPORT
Percent Moisture:

Legal Location:

Gross Alpha/Beta by GFPC SOP 724 Prep Date: 2/15/2022 PrepBy:BMH GROSS ALPHA ND (+/- 1) U 1.7 pCi/g NA 2/19/2022 11:46
GROSS BETA ND (+/- 1.1) U 2 pCi/g NA 2/19/2022 11:46
LIMS Version: 7.026 AR Page 4 of 6
ALS -- Fort Collins

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11 of 14
Project: 2109001
Sample ID: 2021-E2-SMGLPILOT-01
Collection Date: 1/7/2022 13:55
Matrix: SEDIMENT
Analyses Result Qual Units Date Analyzed
Report
Limit
Client: Physis Environmental Laboratories, Inc.

Work Order: 2201113
Dilution
Factor
Lab ID: 2201113-5
ALS -- Fort Collins
Date: 22-Feb-22

SAMPLE SUMMARY REPORT
Percent Moisture:

Legal Location:

Gross Alpha/Beta by GFPC SOP 724 Prep Date: 2/15/2022 PrepBy:BMH GROSS ALPHA 2.1 (+/- 1.1) 1.4 pCi/g NA 2/21/2022 10:45
GROSS BETA 2.5 (+/- 1.2) 2 pCi/g NA 2/21/2022 10:45
LIMS Version: 7.026 AR Page 5 of 6
ALS -- Fort Collins

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12 of 14
Project: 2109001
Sample ID: 2021-E2-SMGLPILOT-01
Collection Date: 1/7/2022 13:55
Matrix: SEDIMENT
Analyses Result Qual Units Date Analyzed
Report
Limit
Client: Physis Environmental Laboratories, Inc.

Work Order: 2201113
Dilution
Factor
Lab ID: 2201113-5
ALS -- Fort Collins
Date: 22-Feb-22

SAMPLE SUMMARY REPORT
Percent Moisture:

Legal Location:

Explanation of Qualifiers
Radiochemistry:

U or ND - Result is less than the sample specific MDC.

Y2 - Chemical Yield outside default limits.

Y1 - Chemical Yield is in control at 100-110%. Quantitative yield is assumed.

W - DER is greater than Warning Limit of 1.42
* - Aliquot Basis is 'As Received' while the Report Basis is 'Dry Weight'. # - Aliquot Basis is 'Dry Weight' while the Report Basis is 'As Received'.

G - Sample density differs by more than 15% of LCS density.

M - Requested MDC not met.

L - LCS Recovery below lower control limit.

H - LCS Recovery above upper control limit.

P - LCS, Matrix Spike Recovery within control limits.

N - Matrix Spike Recovery outside control limits
NC - Not Calculated for duplicate results less than 5 times MDC B3 - Analyte concentration greater than MDC but less than Requested MDC.

B - Analyte concentration greater than MDC.

M3 - The requested MDC was not met, but the reported
activity is greater than the reported MDC.

D - DER is greater than Control Limit
Inorganics:

B - Result is less than the requested reporting limit but greater than the instrument method detection limit (MDL).

E - The reported value is estimated because of the presence of interference. An explanatory note may be included in the narrative.

U or ND - Indicates that the compound was analyzed for but not detected.

M - Duplicate injection precision was not met.

N - Spiked sample recovery not within control limits. A post spike is analyzed for all ICP analyses when the matrix spike and or spike duplicate fail and the native sample concentration is less than four times the spike added concentration.

Z - Spiked recovery not within control limits. An explanatory note may be included in the narrative. * - Duplicate analysis (relative percent difference) not within control limits.

Organics:

U or ND - Indicates that the compound was analyzed for but not detected.

E - Analyte concentration exceeds the upper level of the calibration range.

B - Analyte is detected in the associated method blank as well as in the sample. It indicates probable blank contamination and warns the data user.

J - Estimated value. The result is less than the reporting limit but greater than the instrument method detection limit (MDL).

A - A tentatively identified compound is a suspected aldol-condensation product.

X - The analyte was diluted below an accurate quantitation level. * - The spike recovery is equal to or outside the control criteria used. + - The relative percent difference (RPD) equals or exceeds the control criteria.

G - A pattern resembling gasoline was detected in this sample.

M - A pattern resembling motor oil was detected in this sample.

D - A pattern resembling diesel was detected in this sample.

C - A pattern resembling crude oil was detected in this sample. 4 - A pattern resembling JP-4 was detected in this sample. 5 - A pattern resembling JP-5 was detected in this sample.

H - Indicates that the fuel pattern was in the heavier end of the retention time window for the analyte of interest.

L - Indicates that the fuel pattern was in the lighter end of the retention time window for the analyte of interest.

Z - This flag indicates that a significant fraction of the reported result did not resemble the patterns of any of the following petroleum hydrocarbon products:
- gasoline
- JP-8
- diesel
- mineral spirits
- motor oil
- Stoddard solvent
- bunker C
S - SAR value is estimated as one or more analytes used in the calculation were not detected above the detection limit. - "Report Limit" is the MDC
LIMS Version: 7.026 AR Page 6 of 6
ALS -- Fort Collins

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13 of 14
ALS -- Fort Collins Date: 2/22/2022 1:02:2
Project: 2109001
Client: Physis Environmental Laboratories, Inc.

Work Order: 2201113

QC BATCH REPORT
Batch ID: AB220215-1-5 Instrument ID: LB4100-C Method: Gross Alpha/Beta by GFPC Qual
Analysis Date: 2/19/2022 11:46
Prep Date: 2/15/2022
Analyte Result %REC
Units:pCi/g
ReportLimit
Client ID: 2021-E2-FLDCHNL-01
DUP
Run ID: AB220215-1A
SPK Val
SPK Ref
Value
Control
Limit
DF: NA
Sample ID: 2201113-4
DER Ref
Value DER
DER
Limit
Decision
Level
GROSS ALPHA ND 1.48 1.3 0.17 2.13 U
GROSS BETA 2.1 (+/- 1.1) 2 1.7 0.30 2.13
Qual
Analysis Date: 2/21/2022 10:45
Prep Date: 2/15/2022
Analyte Result %REC
Units:pCi/g
ReportLimit
Client ID:

LCS
Run ID: AB220215-1A
SPK Val
SPK Ref
Value
Control
Limit
DF: NA
Sample ID: AB220215-1
DER Ref
Value DER
DER
Limit
Decision
Level
GROSS ALPHA 13.6 (+/- 2.7) 0.8 14.73 92.5 70-130 P
GROSS BETA 15.6 (+/- 2.8) 1.1 13.9 112 70-130 P
Qual
Analysis Date: 2/19/2022 12:52
Prep Date: 2/15/2022
Analyte Result %REC
Units:pCi/g
ReportLimit
Client ID:

MB
Run ID: AB220215-1A
SPK Val
SPK Ref
Value
Control
Limit
DF: NA
Sample ID: AB220215-1
DER Ref
Value DER
DER
Limit
Decision
Level
GROSS ALPHA ND 0.135 U
GROSS BETA ND 0.194 U
Qual
Analysis Date: 2/19/2022 11:46
Prep Date: 2/15/2022
Analyte Result %REC
Units:pCi/g
ReportLimit
Client ID: 2021-E2-FLDCHNL-01
MS
Run ID: AB220215-1A
SPK Val
SPK Ref
Value
Control
Limit
DF: NA
Sample ID: 2201113-4
DER Ref
Value DER
DER
Limit
Decision
Level
GROSS ALPHA 8.4 (+/- 2.4) 1.7 14.67 1.3 48.5 70-130 N
GROSS BETA 10.6 (+/- 2.5) 2.3 13.84 1.7 64.7 70-130 N
The following samples were analyzed in this batch: 2201113-1 2201113-2 2201113-3 2201113-4 2201113-5
QC Page: 1 of 1
LIMS Version: 7.026
ALS -- Fort Collins

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14 of 14

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Enthalpy Analytical
931 West Barkley Ave
Orange, CA 92868
(714) 771-6900
enthalpy.com
Lab Job Number: 456664
Report Level: II
Report Date: 02/01/2022
Analytical Report prepared for:

Misty Mercier
PHYSIS Environmental Laboratories
1904 E. Wright Circle
Anaheim, CA 92806
Location: 2109001-002
Diane Galvan, Project Manager
714-771-9928
[email protected]
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 above signature which applies to this PDF file as well as any associated electronic data deliverable files. The results contained in this report meet all requirements of NELAP and pertain only to those samples which were submitted for analysis. This report may be reproduced only in its entirety.

CA ELAP# 1338, NELAP# 4038, SCAQMD LAP# 18LA0518, LACSD ID# 10105 Authorized for release by:
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Sample Summary
Misty Mercier
PHYSIS Environmental Laboratories
1904 E. Wright Circle
Anaheim, CA 92806
Lab Job #: 456664
Location: 2109001-002
Date Received: 01/11/22
Sample ID Lab ID Collected Matrix
2021-E2-BASINSMGL-01 456664-001 01/07/22 13:00 Miscell. (Sediment) 2021-E2-BASINTJRVR-01 456664-002 01/07/22 09:10 Miscell. (Sediment) 2021-E2-BRWNFL-01 456664-003 01/07/22 14:45 Miscell. (Sediment) 2021-E2-FLDCHNL-01 456664-004 01/07/22 10:35 Miscell. (Sediment) 2021-E2-SMGLPILOT-01 456664-005 01/07/22 13:55 Miscell. (Sediment) 2 of 26

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Case Narrative
PHYSIS Environmental Laboratories
1904 E. Wright Circle
Anaheim, CA 92806
Misty Mercier
Lab Job Number: 456664
Location: 2109001-002
Date Received: 01/11/22
This data package contains sample and QC results for five sediment samples, requested for the above referenced project on 01/11/22. The samples were received cold and intact.

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

Methylene chloride was detected above the RL in the method blank for batch 281621; this analyte was not detected in samples at or above the RL. Methylene chloride was detected between the MDL and the RL in the method blank for batch 281699. No other analytical problems were encountered.
1 of 1
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Misty Mercier
PHYSIS Environmental Laboratories
1904 E. Wright Circle
Anaheim, CA 92806
Lab Job #: 456664
Location: 2109001-002
Date Received: 01/11/22
Sample ID: 2021-E2-BASINSMGL-01 Lab ID: 456664-001 Collected: 01/07/22 13:00 Matrix: Miscell. Basis: Dry
456664-001 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist Method: EPA 8015M
Prep Method: EPA 3580
TPH (C6-C10) ND mg/Kg 220 18 281905 01/16/22 01/17/22 MES TPH (C10-C44) ND mg/Kg 220 18 281905 01/16/22 01/17/22 MES Surrogates Limits
n-Triacontane 102% %REC 70-130 18 281905 01/16/22 01/17/22 MES Method: EPA 8260B
Prep Method: EPA 5030B
3-Chloropropene ND ug/Kg 6.0 0.3 1 281621 01/12/22 01/12/22 RAO cis-1,4-Dichloro-2-butene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO trans-1,4-Dichloro-2-butene ND ug/Kg 6.0 1.0 1 281621 01/12/22 01/12/22 RAO Freon 12 ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO Chloromethane ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO Vinyl Chloride ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO Bromomethane ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO Chloroethane ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO Trichlorofluoromethane ND ug/Kg 6.0 0.3 1 281621 01/12/22 01/12/22 RAO Acetone ND ug/Kg 120 30 1 281621 01/12/22 01/12/22 RAO
Freon 113 ND ug/Kg 6.0 0.9 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloroethene ND ug/Kg 6.0 0.2 1 281621 01/12/22 01/12/22 RAO Methylene Chloride 3.8 B,J ug/Kg 6.0 0.8 1 281621 01/12/22 01/12/22 RAO MTBE ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO
trans-1,2-Dichloroethene ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloroethane ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO 2-Butanone ND ug/Kg 120 3.9 1 281621 01/12/22 01/12/22 RAO cis-1,2-Dichloroethene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO 2,2-Dichloropropane ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO Chloroform ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO Bromochloromethane ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO 1,1,1-Trichloroethane ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloropropene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO Carbon Tetrachloride ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloroethane ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO Benzene ND ug/Kg 6.0 0.3 1 281621 01/12/22 01/12/22 RAO Trichloroethene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloropropane ND ug/Kg 6.0 0.7 1 281621 01/12/22 01/12/22 RAO Bromodichloromethane ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO 1 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 7 of 26

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Dibromomethane ND ug/Kg 6.0 0.7 1 281621 01/12/22 01/12/22 RAO 4-Methyl-2-Pentanone ND ug/Kg 6.0 2.3 1 281621 01/12/22 01/12/22 RAO cis-1,3-Dichloropropene ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO Toluene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO trans-1,3-Dichloropropene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO 1,1,2-Trichloroethane ND ug/Kg 6.0 0.7 1 281621 01/12/22 01/12/22 RAO 1,3-Dichloropropane ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO Tetrachloroethene ND ug/Kg 6.0 0.7 1 281621 01/12/22 01/12/22 RAO Dibromochloromethane ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO 1,2-Dibromoethane ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO Chlorobenzene ND ug/Kg 6.0 0.3 1 281621 01/12/22 01/12/22 RAO 1,1,1,2-Tetrachloroethane ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO Ethylbenzene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO m,p-Xylenes ND ug/Kg 12 1.0 1 281621 01/12/22 01/12/22 RAO o-Xylene ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO Styrene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO Bromoform ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO Isopropylbenzene ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO 1,1,2,2-Tetrachloroethane ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO 1,2,3-Trichloropropane ND ug/Kg 6.0 0.9 1 281621 01/12/22 01/12/22 RAO Propylbenzene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO Bromobenzene ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO 1,3,5-Trimethylbenzene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO 2-Chlorotoluene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO 4-Chlorotoluene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO tert-Butylbenzene ND ug/Kg 6.0 0.4 1 281621 01/12/22 01/12/22 RAO 1,2,4-Trimethylbenzene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO sec-Butylbenzene ND ug/Kg 6.0 0.5 1 281621 01/12/22 01/12/22 RAO para-Isopropyl Toluene ND ug/Kg 6.0 0.7 1 281621 01/12/22 01/12/22 RAO 1,3-Dichlorobenzene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO 1,4-Dichlorobenzene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO n-Butylbenzene ND ug/Kg 6.0 0.8 1 281621 01/12/22 01/12/22 RAO 1,2-Dichlorobenzene ND ug/Kg 6.0 0.6 1 281621 01/12/22 01/12/22 RAO 1,2-Dibromo-3-Chloropropane ND ug/Kg 6.0 0.8 1 281621 01/12/22 01/12/22 RAO 1,2,4-Trichlorobenzene ND ug/Kg 6.0 1.1 1 281621 01/12/22 01/12/22 RAO Hexachlorobutadiene ND ug/Kg 6.0 0.7 1 281621 01/12/22 01/12/22 RAO Naphthalene ND ug/Kg 6.0 1.0 1 281621 01/12/22 01/12/22 RAO 1,2,3-Trichlorobenzene ND ug/Kg 6.0 0.7 1 281621 01/12/22 01/12/22 RAO Xylene (total) ND ug/Kg 6.0 1 281621 01/12/22 01/12/22 RAO Surrogates Limits
Dibromofluoromethane 111% %REC 70-145 1.6 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloroethane-d4 116% %REC 70-145 1 281621 01/12/22 01/12/22 RAO Toluene-d8 96% %REC 70-145 1 281621 01/12/22 01/12/22 RAO Bromofluorobenzene 103% %REC 70-145 1.8 1 281621 01/12/22 01/12/22 RAO Method: EPA 9012A
Cyanide ND mg/Kg 0.60 0.042 1 282063 01/19/22 01/19/22 ATP 456664-001 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist 2 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 8 of 26

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3 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 9 of 26

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Sample ID: Lab ID: 456664-002 Collected: 01/07/22 09:10 2021-E2-BASINTJRVR-01 Matrix: Miscell. Basis: Dry
456664-002 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist Method: EPA 8015M
Prep Method: EPA 3580
TPH (C6-C10) ND mg/Kg 210 20 281905 01/16/22 01/18/22 MES TPH (C10-C44) ND mg/Kg 210 20 281905 01/16/22 01/18/22 MES Surrogates Limits
n-Triacontane 96% %REC 70-130 20 281905 01/16/22 01/18/22 MES Method: EPA 8260B
Prep Method: EPA 5030B
3-Chloropropene ND ug/Kg 5.3 0.3 1 281699 01/13/22 01/13/22 RAO cis-1,4-Dichloro-2-butene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO trans-1,4-Dichloro-2-butene ND ug/Kg 5.3 0.9 1 281699 01/13/22 01/13/22 RAO Freon 12 ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Chloromethane ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO Vinyl Chloride ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Bromomethane ND ug/Kg 5.3 0.3 1 281699 01/13/22 01/13/22 RAO Chloroethane ND ug/Kg 5.3 0.3 1 281699 01/13/22 01/13/22 RAO Trichlorofluoromethane ND ug/Kg 5.3 0.3 1 281699 01/13/22 01/13/22 RAO Acetone ND ug/Kg 110 27 1 281699 01/13/22 01/13/22 RAO
Freon 113 ND ug/Kg 5.3 0.8 1 281699 01/13/22 01/13/22 RAO 1,1-Dichloroethene ND ug/Kg 5.3 0.2 1 281699 01/13/22 01/13/22 RAO Methylene Chloride 5.2 B,J ug/Kg 5.3 0.7 1 281699 01/13/22 01/13/22 RAO MTBE ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO
trans-1,2-Dichloroethene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,1-Dichloroethane ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 2-Butanone ND ug/Kg 110 3.4 1 281699 01/13/22 01/13/22 RAO cis-1,2-Dichloroethene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO 2,2-Dichloropropane ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO Chloroform ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO Bromochloromethane ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,1,1-Trichloroethane ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO 1,1-Dichloropropene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO Carbon Tetrachloride ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,2-Dichloroethane ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Benzene ND ug/Kg 5.3 0.2 1 281699 01/13/22 01/13/22 RAO Trichloroethene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO 1,2-Dichloropropane ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO Bromodichloromethane ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Dibromomethane ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO 4-Methyl-2-Pentanone ND ug/Kg 5.3 2.0 1 281699 01/13/22 01/13/22 RAO cis-1,3-Dichloropropene ND ug/Kg 5.3 0.3 1 281699 01/13/22 01/13/22 RAO Toluene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO trans-1,3-Dichloropropene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 4 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 10 of 26

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1,1,2-Trichloroethane ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO 1,3-Dichloropropane ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Tetrachloroethene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO Dibromochloromethane ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,2-Dibromoethane ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Chlorobenzene ND ug/Kg 5.3 0.3 1 281699 01/13/22 01/13/22 RAO 1,1,1,2-Tetrachloroethane ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Ethylbenzene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO m,p-Xylenes ND ug/Kg 11 0.9 1 281699 01/13/22 01/13/22 RAO o-Xylene ND ug/Kg 5.3 0.3 1 281699 01/13/22 01/13/22 RAO Styrene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Bromoform ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO Isopropylbenzene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,1,2,2-Tetrachloroethane ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,2,3-Trichloropropane ND ug/Kg 5.3 0.8 1 281699 01/13/22 01/13/22 RAO Propylbenzene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO Bromobenzene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,3,5-Trimethylbenzene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 2-Chlorotoluene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO 4-Chlorotoluene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO tert-Butylbenzene ND ug/Kg 5.3 0.4 1 281699 01/13/22 01/13/22 RAO 1,2,4-Trimethylbenzene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO sec-Butylbenzene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO para-Isopropyl Toluene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO 1,3-Dichlorobenzene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO 1,4-Dichlorobenzene ND ug/Kg 5.3 0.5 1 281699 01/13/22 01/13/22 RAO n-Butylbenzene ND ug/Kg 5.3 0.7 1 281699 01/13/22 01/13/22 RAO 1,2-Dichlorobenzene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.3 0.7 1 281699 01/13/22 01/13/22 RAO 1,2,4-Trichlorobenzene ND ug/Kg 5.3 0.9 1 281699 01/13/22 01/13/22 RAO Hexachlorobutadiene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO Naphthalene ND ug/Kg 5.3 0.9 1 281699 01/13/22 01/13/22 RAO 1,2,3-Trichlorobenzene ND ug/Kg 5.3 0.6 1 281699 01/13/22 01/13/22 RAO Xylene (total) ND ug/Kg 5.3 1 281699 01/13/22 01/13/22 RAO Surrogates Limits
Dibromofluoromethane 106% %REC 70-145 1.4 1 281699 01/13/22 01/13/22 RAO 1,2-Dichloroethane-d4 115% %REC 70-145 1 281699 01/13/22 01/13/22 RAO Toluene-d8 99% %REC 70-145 1 281699 01/13/22 01/13/22 RAO Bromofluorobenzene 104% %REC 70-145 1.6 1 281699 01/13/22 01/13/22 RAO Method: EPA 9012A
Cyanide ND mg/Kg 0.53 0.037 1 282063 01/19/22 01/19/22 ATP 456664-002 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist 5 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 11 of 26

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Sample ID: 2021-E2-BRWNFL-01 Lab ID: 456664-003 Collected: 01/07/22 14:45 Matrix: Miscell. Basis: Dry
456664-003 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist Method: EPA 8015M
Prep Method: EPA 3580
TPH (C6-C10) ND mg/Kg 210 20 281905 01/16/22 01/18/22 MES TPH (C10-C44) ND mg/Kg 210 20 281905 01/16/22 01/18/22 MES Surrogates Limits
n-Triacontane 98% %REC 70-130 20 281905 01/16/22 01/18/22 MES Method: EPA 8260B
Prep Method: EPA 5030B
3-Chloropropene ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO cis-1,4-Dichloro-2-butene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO trans-1,4-Dichloro-2-butene ND ug/Kg 5.2 0.9 1 281621 01/12/22 01/12/22 RAO Freon 12 ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO Chloromethane ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO Vinyl Chloride ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO Bromomethane ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO Chloroethane ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO Trichlorofluoromethane ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO Acetone ND ug/Kg 100 26 1 281621 01/12/22 01/12/22 RAO
Freon 113 ND ug/Kg 5.2 0.8 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloroethene ND ug/Kg 5.2 0.2 1 281621 01/12/22 01/12/22 RAO Methylene Chloride 5.0 B,J ug/Kg 5.2 0.7 1 281621 01/12/22 01/12/22 RAO MTBE ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO
trans-1,2-Dichloroethene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloroethane ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 2-Butanone ND ug/Kg 100 3.3 1 281621 01/12/22 01/12/22 RAO cis-1,2-Dichloroethene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO 2,2-Dichloropropane ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO Chloroform ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO Bromochloromethane ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 1,1,1-Trichloroethane ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloropropene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO Carbon Tetrachloride ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloroethane ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO Benzene ND ug/Kg 5.2 0.2 1 281621 01/12/22 01/12/22 RAO Trichloroethene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloropropane ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO Bromodichloromethane ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO Dibromomethane ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO 4-Methyl-2-Pentanone ND ug/Kg 5.2 2.0 1 281621 01/12/22 01/12/22 RAO cis-1,3-Dichloropropene ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO Toluene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO trans-1,3-Dichloropropene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 6 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 12 of 26

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1,1,2-Trichloroethane ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO 1,3-Dichloropropane ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO Tetrachloroethene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO Dibromochloromethane ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 1,2-Dibromoethane ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO Chlorobenzene ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO 1,1,1,2-Tetrachloroethane ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO Ethylbenzene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO m,p-Xylenes ND ug/Kg 10 0.9 1 281621 01/12/22 01/12/22 RAO o-Xylene ND ug/Kg 5.2 0.3 1 281621 01/12/22 01/12/22 RAO Styrene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO Bromoform ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO Isopropylbenzene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 1,1,2,2-Tetrachloroethane ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 1,2,3-Trichloropropane ND ug/Kg 5.2 0.8 1 281621 01/12/22 01/12/22 RAO Propylbenzene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO Bromobenzene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 1,3,5-Trimethylbenzene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 2-Chlorotoluene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO 4-Chlorotoluene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO tert-Butylbenzene ND ug/Kg 5.2 0.4 1 281621 01/12/22 01/12/22 RAO 1,2,4-Trimethylbenzene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO sec-Butylbenzene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO para-Isopropyl Toluene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO 1,3-Dichlorobenzene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO 1,4-Dichlorobenzene ND ug/Kg 5.2 0.5 1 281621 01/12/22 01/12/22 RAO n-Butylbenzene ND ug/Kg 5.2 0.7 1 281621 01/12/22 01/12/22 RAO 1,2-Dichlorobenzene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.2 0.7 1 281621 01/12/22 01/12/22 RAO 1,2,4-Trichlorobenzene ND ug/Kg 5.2 0.9 1 281621 01/12/22 01/12/22 RAO Hexachlorobutadiene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO Naphthalene ND ug/Kg 5.2 0.9 1 281621 01/12/22 01/12/22 RAO 1,2,3-Trichlorobenzene ND ug/Kg 5.2 0.6 1 281621 01/12/22 01/12/22 RAO Xylene (total) ND ug/Kg 5.2 1 281621 01/12/22 01/12/22 RAO Surrogates Limits
Dibromofluoromethane 112% %REC 70-145 1.4 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloroethane-d4 116% %REC 70-145 1 281621 01/12/22 01/12/22 RAO Toluene-d8 98% %REC 70-145 1 281621 01/12/22 01/12/22 RAO Bromofluorobenzene 103% %REC 70-145 1.6 1 281621 01/12/22 01/12/22 RAO Method: EPA 9012A
Cyanide ND mg/Kg 0.52 0.036 1 282063 01/19/22 01/19/22 ATP 456664-003 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist 7 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 13 of 26

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Sample ID: 2021-E2-FLDCHNL-01 Lab ID: 456664-004 Collected: 01/07/22 10:35 Matrix: Miscell. Basis: Dry
456664-004 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist Method: EPA 8015M
Prep Method: EPA 3580
TPH (C6-C10) ND mg/Kg 230 20 281907 01/16/22 01/18/22 MES TPH (C10-C44) ND mg/Kg 230 20 281907 01/16/22 01/18/22 MES Surrogates Limits
n-Triacontane 107% %REC 70-130 20 281907 01/16/22 01/18/22 MES Method: EPA 8260B
Prep Method: EPA 5030B
3-Chloropropene ND ug/Kg 5.7 0.3 1 281699 01/13/22 01/13/22 RAO cis-1,4-Dichloro-2-butene ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO trans-1,4-Dichloro-2-butene ND ug/Kg 5.7 1.0 1 281699 01/13/22 01/13/22 RAO Freon 12 ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO Chloromethane ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO Vinyl Chloride ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO Bromomethane ND ug/Kg 5.7 0.3 1 281699 01/13/22 01/13/22 RAO Chloroethane ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO Trichlorofluoromethane ND ug/Kg 5.7 0.3 1 281699 01/13/22 01/13/22 RAO Acetone ND ug/Kg 110 29 1 281699 01/13/22 01/13/22 RAO
Freon 113 ND ug/Kg 5.7 0.9 1 281699 01/13/22 01/13/22 RAO 1,1-Dichloroethene ND ug/Kg 5.7 0.2 1 281699 01/13/22 01/13/22 RAO Methylene Chloride 6.8 B ug/Kg 5.7 0.8 1 281699 01/13/22 01/13/22 RAO MTBE ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO
trans-1,2-Dichloroethene ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,1-Dichloroethane ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO 2-Butanone ND ug/Kg 110 3.7 1 281699 01/13/22 01/13/22 RAO cis-1,2-Dichloroethene ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO 2,2-Dichloropropane ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Chloroform ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO Bromochloromethane ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,1,1-Trichloroethane ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO 1,1-Dichloropropene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO Carbon Tetrachloride ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,2-Dichloroethane ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Benzene ND ug/Kg 5.7 0.2 1 281699 01/13/22 01/13/22 RAO Trichloroethene ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO 1,2-Dichloropropane ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Bromodichloromethane ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Dibromomethane ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO 4-Methyl-2-Pentanone ND ug/Kg 5.7 2.2 1 281699 01/13/22 01/13/22 RAO cis-1,3-Dichloropropene ND ug/Kg 5.7 0.3 1 281699 01/13/22 01/13/22 RAO Toluene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO trans-1,3-Dichloropropene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO 8 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 14 of 26

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1,1,2-Trichloroethane ND ug/Kg 5.7 0.7 1 281699 01/13/22 01/13/22 RAO 1,3-Dichloropropane ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO Tetrachloroethene ND ug/Kg 5.7 0.7 1 281699 01/13/22 01/13/22 RAO Dibromochloromethane ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,2-Dibromoethane ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Chlorobenzene ND ug/Kg 5.7 0.3 1 281699 01/13/22 01/13/22 RAO 1,1,1,2-Tetrachloroethane ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Ethylbenzene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO m,p-Xylenes ND ug/Kg 11 1.0 1 281699 01/13/22 01/13/22 RAO o-Xylene ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO Styrene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO Bromoform ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Isopropylbenzene ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,1,2,2-Tetrachloroethane ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,2,3-Trichloropropane ND ug/Kg 5.7 0.8 1 281699 01/13/22 01/13/22 RAO Propylbenzene ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO Bromobenzene ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,3,5-Trimethylbenzene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO 2-Chlorotoluene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO 4-Chlorotoluene ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO tert-Butylbenzene ND ug/Kg 5.7 0.4 1 281699 01/13/22 01/13/22 RAO 1,2,4-Trimethylbenzene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO sec-Butylbenzene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO para-Isopropyl Toluene ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO 1,3-Dichlorobenzene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO 1,4-Dichlorobenzene ND ug/Kg 5.7 0.5 1 281699 01/13/22 01/13/22 RAO n-Butylbenzene ND ug/Kg 5.7 0.8 1 281699 01/13/22 01/13/22 RAO 1,2-Dichlorobenzene ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.7 0.7 1 281699 01/13/22 01/13/22 RAO 1,2,4-Trichlorobenzene ND ug/Kg 5.7 1.0 1 281699 01/13/22 01/13/22 RAO Hexachlorobutadiene ND ug/Kg 5.7 0.7 1 281699 01/13/22 01/13/22 RAO Naphthalene ND ug/Kg 5.7 1.0 1 281699 01/13/22 01/13/22 RAO 1,2,3-Trichlorobenzene ND ug/Kg 5.7 0.6 1 281699 01/13/22 01/13/22 RAO Xylene (total) ND ug/Kg 5.7 1 281699 01/13/22 01/13/22 RAO Surrogates Limits
Dibromofluoromethane 105% %REC 70-145 1.5 1 281699 01/13/22 01/13/22 RAO 1,2-Dichloroethane-d4 117% %REC 70-145 1 281699 01/13/22 01/13/22 RAO Toluene-d8 96% %REC 70-145 1 281699 01/13/22 01/13/22 RAO Bromofluorobenzene 115% %REC 70-145 1.7 1 281699 01/13/22 01/13/22 RAO Method: EPA 9012A
Cyanide ND mg/Kg 0.57 0.040 1 282063 01/19/22 01/19/22 ATP 456664-004 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist 9 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 15 of 26

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Sample ID: 2021-E2-SMGLPILOT-01 Lab ID: 456664-005 Collected: 01/07/22 13:55 Matrix: Miscell. Basis: Dry
456664-005 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist Method: EPA 8015M
Prep Method: EPA 3580
TPH (C6-C10) ND mg/Kg 220 20 281907 01/16/22 01/18/22 MES TPH (C10-C44) ND mg/Kg 220 20 281907 01/16/22 01/18/22 MES Surrogates Limits
n-Triacontane 109% %REC 70-130 20 281907 01/16/22 01/18/22 MES Method: EPA 8260B
Prep Method: EPA 5030B
3-Chloropropene ND ug/Kg 5.6 0.3 1 281621 01/12/22 01/12/22 RAO cis-1,4-Dichloro-2-butene ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO trans-1,4-Dichloro-2-butene ND ug/Kg 5.6 1.0 1 281621 01/12/22 01/12/22 RAO Freon 12 ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO Chloromethane ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO Vinyl Chloride ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO Bromomethane ND ug/Kg 5.6 0.3 1 281621 01/12/22 01/12/22 RAO Chloroethane ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO Trichlorofluoromethane ND ug/Kg 5.6 0.3 1 281621 01/12/22 01/12/22 RAO Acetone ND ug/Kg 110 28 1 281621 01/12/22 01/12/22 RAO
Freon 113 ND ug/Kg 5.6 0.8 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloroethene ND ug/Kg 5.6 0.2 1 281621 01/12/22 01/12/22 RAO Methylene Chloride 4.3 B,J ug/Kg 5.6 0.7 1 281621 01/12/22 01/12/22 RAO MTBE ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO
trans-1,2-Dichloroethene ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloroethane ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 2-Butanone ND ug/Kg 110 3.6 1 281621 01/12/22 01/12/22 RAO cis-1,2-Dichloroethene ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO 2,2-Dichloropropane ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO Chloroform ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO Bromochloromethane ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,1,1-Trichloroethane ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO 1,1-Dichloropropene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO Carbon Tetrachloride ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloroethane ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO Benzene ND ug/Kg 5.6 0.2 1 281621 01/12/22 01/12/22 RAO Trichloroethene ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloropropane ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO Bromodichloromethane ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO Dibromomethane ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO 4-Methyl-2-Pentanone ND ug/Kg 5.6 2.1 1 281621 01/12/22 01/12/22 RAO cis-1,3-Dichloropropene ND ug/Kg 5.6 0.3 1 281621 01/12/22 01/12/22 RAO Toluene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO trans-1,3-Dichloropropene ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 10 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 16 of 26

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1,1,2-Trichloroethane ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO 1,3-Dichloropropane ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO Tetrachloroethene ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO Dibromochloromethane ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,2-Dibromoethane ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO Chlorobenzene ND ug/Kg 5.6 0.3 1 281621 01/12/22 01/12/22 RAO 1,1,1,2-Tetrachloroethane ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO Ethylbenzene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO m,p-Xylenes ND ug/Kg 11 0.9 1 281621 01/12/22 01/12/22 RAO o-Xylene ND ug/Kg 5.6 0.3 1 281621 01/12/22 01/12/22 RAO Styrene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO Bromoform ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO Isopropylbenzene ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,1,2,2-Tetrachloroethane ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,2,3-Trichloropropane ND ug/Kg 5.6 0.8 1 281621 01/12/22 01/12/22 RAO Propylbenzene ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO Bromobenzene ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,3,5-Trimethylbenzene ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 2-Chlorotoluene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO 4-Chlorotoluene ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO tert-Butylbenzene ND ug/Kg 5.6 0.4 1 281621 01/12/22 01/12/22 RAO 1,2,4-Trimethylbenzene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO sec-Butylbenzene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO para-Isopropyl Toluene 9.2 ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO 1,3-Dichlorobenzene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO 1,4-Dichlorobenzene ND ug/Kg 5.6 0.5 1 281621 01/12/22 01/12/22 RAO n-Butylbenzene ND ug/Kg 5.6 0.7 1 281621 01/12/22 01/12/22 RAO 1,2-Dichlorobenzene ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.6 0.7 1 281621 01/12/22 01/12/22 RAO 1,2,4-Trichlorobenzene ND ug/Kg 5.6 1.0 1 281621 01/12/22 01/12/22 RAO Hexachlorobutadiene ND ug/Kg 5.6 0.7 1 281621 01/12/22 01/12/22 RAO Naphthalene ND ug/Kg 5.6 1.0 1 281621 01/12/22 01/12/22 RAO 1,2,3-Trichlorobenzene ND ug/Kg 5.6 0.6 1 281621 01/12/22 01/12/22 RAO Xylene (total) ND ug/Kg 5.6 1 281621 01/12/22 01/12/22 RAO Surrogates Limits
Dibromofluoromethane 111% %REC 70-145 1.4 1 281621 01/12/22 01/12/22 RAO 1,2-Dichloroethane-d4 120% %REC 70-145 1 281621 01/12/22 01/12/22 RAO Toluene-d8 97% %REC 70-145 1 281621 01/12/22 01/12/22 RAO Bromofluorobenzene 98% %REC 70-145 1.7 1 281621 01/12/22 01/12/22 RAO Method: EPA 9012A
Cyanide ND mg/Kg 0.56 0.039 1 282063 01/19/22 01/19/22 ATP 456664-005 Analyte Result Qual Units RL MDL DF Batch Prepared Analyzed Chemist B Contamination found in associated Method Blank
J Estimated value
ND Not Detected
11 of 11
Analysis Results for 456664
Results for any subcontracted analyses are not included in this section. 17 of 26

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Type: Blank Lab ID: QC965890 Batch: 281621
Matrix: Soil Method: EPA 8260B Prep Method: EPA 5030B
QC965890 Analyte Result Qual Units RL MDL Prepared Analyzed 3-Chloropropene ND ug/Kg 5.0 0.3 01/12/22 01/12/22
cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 0.5 01/12/22 01/12/22 trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 0.9 01/12/22 01/12/22 Freon 12 ND ug/Kg 5.0 0.4 01/12/22 01/12/22
Chloromethane ND ug/Kg 5.0 0.4 01/12/22 01/12/22
Vinyl Chloride ND ug/Kg 5.0 0.4 01/12/22 01/12/22
Bromomethane ND ug/Kg 5.0 0.3 01/12/22 01/12/22
Chloroethane ND ug/Kg 5.0 0.3 01/12/22 01/12/22
Trichlorofluoromethane ND ug/Kg 5.0 0.3 01/12/22 01/12/22 Acetone ND ug/Kg 100 25 01/12/22 01/12/22
Freon 113 ND ug/Kg 5.0 0.7 01/12/22 01/12/22
1,1-Dichloroethene ND ug/Kg 5.0 0.2 01/12/22 01/12/22
Methylene Chloride 5.2 ug/Kg 5.0 0.7 01/12/22 01/12/22
MTBE ND ug/Kg 5.0 0.4 01/12/22 01/12/22
trans-1,2-Dichloroethene ND ug/Kg 5.0 0.4 01/12/22 01/12/22 1,1-Dichloroethane ND ug/Kg 5.0 0.4 01/12/22 01/12/22
2-Butanone ND ug/Kg 100 3.2 01/12/22 01/12/22
cis-1,2-Dichloroethene ND ug/Kg 5.0 0.5 01/12/22 01/12/22 2,2-Dichloropropane ND ug/Kg 5.0 0.5 01/12/22 01/12/22
Chloroform ND ug/Kg 5.0 0.4 01/12/22 01/12/22
Bromochloromethane ND ug/Kg 5.0 0.4 01/12/22 01/12/22
1,1,1-Trichloroethane ND ug/Kg 5.0 0.5 01/12/22 01/12/22 1,1-Dichloropropene ND ug/Kg 5.0 0.4 01/12/22 01/12/22
Carbon Tetrachloride ND ug/Kg 5.0 0.3 01/12/22 01/12/22 1,2-Dichloroethane ND ug/Kg 5.0 0.5 01/12/22 01/12/22
Benzene ND ug/Kg 5.0 0.2 01/12/22 01/12/22
Trichloroethene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
1,2-Dichloropropane ND ug/Kg 5.0 0.6 01/12/22 01/12/22
Bromodichloromethane ND ug/Kg 5.0 0.5 01/12/22 01/12/22 Dibromomethane ND ug/Kg 5.0 0.6 01/12/22 01/12/22
4-Methyl-2-Pentanone ND ug/Kg 5.0 1.9 01/12/22 01/12/22 cis-1,3-Dichloropropene ND ug/Kg 5.0 0.3 01/12/22 01/12/22 Toluene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
trans-1,3-Dichloropropene ND ug/Kg 5.0 0.4 01/12/22 01/12/22 1,1,2-Trichloroethane ND ug/Kg 5.0 0.6 01/12/22 01/12/22 1,3-Dichloropropane ND ug/Kg 5.0 0.5 01/12/22 01/12/22
Tetrachloroethene ND ug/Kg 5.0 0.6 01/12/22 01/12/22
Dibromochloromethane ND ug/Kg 5.0 0.4 01/12/22 01/12/22 1,2-Dibromoethane ND ug/Kg 5.0 0.5 01/12/22 01/12/22
Chlorobenzene ND ug/Kg 5.0 0.3 01/12/22 01/12/22
1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 0.5 01/12/22 01/12/22 Ethylbenzene ND ug/Kg 5.0 0.4 01/12/22 01/12/22
1 of 9
Batch QC
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m,p-Xylenes ND ug/Kg 10 0.8 01/12/22 01/12/22
o-Xylene ND ug/Kg 5.0 0.3 01/12/22 01/12/22
Styrene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
Bromoform ND ug/Kg 5.0 0.5 01/12/22 01/12/22
Isopropylbenzene ND ug/Kg 5.0 0.4 01/12/22 01/12/22
1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 0.4 01/12/22 01/12/22 1,2,3-Trichloropropane ND ug/Kg 5.0 0.7 01/12/22 01/12/22 Propylbenzene ND ug/Kg 5.0 0.4 01/12/22 01/12/22
Bromobenzene ND ug/Kg 5.0 0.3 01/12/22 01/12/22
1,3,5-Trimethylbenzene ND ug/Kg 5.0 0.4 01/12/22 01/12/22 2-Chlorotoluene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
4-Chlorotoluene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
tert-Butylbenzene ND ug/Kg 5.0 0.3 01/12/22 01/12/22
1,2,4-Trimethylbenzene ND ug/Kg 5.0 0.5 01/12/22 01/12/22 sec-Butylbenzene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
para-Isopropyl Toluene ND ug/Kg 5.0 0.5 01/12/22 01/12/22 1,3-Dichlorobenzene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
1,4-Dichlorobenzene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
n-Butylbenzene ND ug/Kg 5.0 0.7 01/12/22 01/12/22
1,2-Dichlorobenzene ND ug/Kg 5.0 0.5 01/12/22 01/12/22
1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 0.6 01/12/22 01/12/22 1,2,4-Trichlorobenzene ND ug/Kg 5.0 0.9 01/12/22 01/12/22 Hexachlorobutadiene ND ug/Kg 5.0 0.6 01/12/22 01/12/22
Naphthalene ND ug/Kg 5.0 0.9 01/12/22 01/12/22
1,2,3-Trichlorobenzene ND ug/Kg 5.0 0.5 01/12/22 01/12/22 Xylene (total) ND ug/Kg 5.0 01/12/22 01/12/22
Surrogates Limits
Dibromofluoromethane 109% %REC 70-130 1.3 01/12/22 01/12/22 1,2-Dichloroethane-d4 116% %REC 70-145 01/12/22 01/12/22 Toluene-d8 99% %REC 70-145 01/12/22 01/12/22
Bromofluorobenzene 103% %REC 70-145 1.5 01/12/22 01/12/22 QC965890 Analyte Result Qual Units RL MDL Prepared Analyzed 2 of 9
Batch QC
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Type: Lab Control Sample Lab ID: QC965891 Batch: 281621 Matrix: Soil Method: EPA 8260B Prep Method: EPA 5030B
QC965891 Analyte Result Spiked Units Recovery Qual Limits 1,1-Dichloroethene 53.15 50.00 ug/Kg 106% 70-131
MTBE 46.20 50.00 ug/Kg 92% 69-130
Benzene 48.65 50.00 ug/Kg 97% 70-130
Trichloroethene 49.42 50.00 ug/Kg 99% 70-130
Toluene 47.00 50.00 ug/Kg 94% 70-130
Chlorobenzene 49.57 50.00 ug/Kg 99% 70-130
Surrogates
Dibromofluoromethane 55.07 50.00 ug/Kg 110% 70-130
1,2-Dichloroethane-d4 55.70 50.00 ug/Kg 111% 70-145
Toluene-d8 49.60 50.00 ug/Kg 99% 70-145
Bromofluorobenzene 48.79 50.00 ug/Kg 98% 70-145
Type: Lab Control Sample Duplicate Lab ID: QC965892 Batch: 281621 Matrix: Soil Method: EPA 8260B Prep Method: EPA 5030B
QC965892 Analyte Result Spiked Units Recovery Qual Limits RPD RPD
Lim
1,1-Dichloroethene 57.15 50.00 ug/Kg 114% 70-131 7 33
MTBE 50.44 50.00 ug/Kg 101% 69-130 9 30
Benzene 53.19 50.00 ug/Kg 106% 70-130 9 30
Trichloroethene 52.52 50.00 ug/Kg 105% 70-130 6 30
Toluene 49.78 50.00 ug/Kg 100% 70-130 6 30
Chlorobenzene 52.35 50.00 ug/Kg 105% 70-130 5 30
Surrogates
Dibromofluoromethane 55.73 50.00 ug/Kg 111% 70-130
1,2-Dichloroethane-d4 58.53 50.00 ug/Kg 117% 70-145
Toluene-d8 49.38 50.00 ug/Kg 99% 70-145
Bromofluorobenzene 48.25 50.00 ug/Kg 96% 70-145
3 of 9
Batch QC
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Type: Blank Lab ID: QC966112 Batch: 281699
Matrix: Soil Method: EPA 8260B Prep Method: EPA 5030B
QC966112 Analyte Result Qual Units RL MDL Prepared Analyzed 3-Chloropropene ND ug/Kg 5.0 0.3 01/13/22 01/13/22
cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 0.5 01/13/22 01/13/22 trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 0.9 01/13/22 01/13/22 Freon 12 ND ug/Kg 5.0 0.4 01/13/22 01/13/22
Chloromethane ND ug/Kg 5.0 0.4 01/13/22 01/13/22
Vinyl Chloride ND ug/Kg 5.0 0.4 01/13/22 01/13/22
Bromomethane ND ug/Kg 5.0 0.3 01/13/22 01/13/22
Chloroethane ND ug/Kg 5.0 0.3 01/13/22 01/13/22
Trichlorofluoromethane ND ug/Kg 5.0 0.3 01/13/22 01/13/22 Acetone ND ug/Kg 100 25 01/13/22 01/13/22
Freon 113 ND ug/Kg 5.0 0.7 01/13/22 01/13/22
1,1-Dichloroethene ND ug/Kg 5.0 0.2 01/13/22 01/13/22
Methylene Chloride 1.0 J ug/Kg 5.0 0.7 01/13/22 01/13/22 MTBE ND ug/Kg 5.0 0.4 01/13/22 01/13/22
trans-1,2-Dichloroethene ND ug/Kg 5.0 0.4 01/13/22 01/13/22 1,1-Dichloroethane ND ug/Kg 5.0 0.4 01/13/22 01/13/22
2-Butanone ND ug/Kg 100 3.2 01/13/22 01/13/22
cis-1,2-Dichloroethene ND ug/Kg 5.0 0.5 01/13/22 01/13/22 2,2-Dichloropropane ND ug/Kg 5.0 0.5 01/13/22 01/13/22
Chloroform ND ug/Kg 5.0 0.4 01/13/22 01/13/22
Bromochloromethane ND ug/Kg 5.0 0.4 01/13/22 01/13/22
1,1,1-Trichloroethane ND ug/Kg 5.0 0.5 01/13/22 01/13/22 1,1-Dichloropropene ND ug/Kg 5.0 0.4 01/13/22 01/13/22
Carbon Tetrachloride ND ug/Kg 5.0 0.3 01/13/22 01/13/22 1,2-Dichloroethane ND ug/Kg 5.0 0.5 01/13/22 01/13/22
Benzene ND ug/Kg 5.0 0.2 01/13/22 01/13/22
Trichloroethene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
1,2-Dichloropropane ND ug/Kg 5.0 0.6 01/13/22 01/13/22
Bromodichloromethane ND ug/Kg 5.0 0.5 01/13/22 01/13/22 Dibromomethane ND ug/Kg 5.0 0.6 01/13/22 01/13/22
4-Methyl-2-Pentanone ND ug/Kg 5.0 1.9 01/13/22 01/13/22 cis-1,3-Dichloropropene ND ug/Kg 5.0 0.3 01/13/22 01/13/22 Toluene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
trans-1,3-Dichloropropene ND ug/Kg 5.0 0.4 01/13/22 01/13/22 1,1,2-Trichloroethane ND ug/Kg 5.0 0.6 01/13/22 01/13/22 1,3-Dichloropropane ND ug/Kg 5.0 0.5 01/13/22 01/13/22
Tetrachloroethene ND ug/Kg 5.0 0.6 01/13/22 01/13/22
Dibromochloromethane ND ug/Kg 5.0 0.4 01/13/22 01/13/22 1,2-Dibromoethane ND ug/Kg 5.0 0.5 01/13/22 01/13/22
Chlorobenzene ND ug/Kg 5.0 0.3 01/13/22 01/13/22
1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 0.5 01/13/22 01/13/22 Ethylbenzene ND ug/Kg 5.0 0.4 01/13/22 01/13/22
4 of 9
Batch QC
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m,p-Xylenes ND ug/Kg 10 0.8 01/13/22 01/13/22
o-Xylene ND ug/Kg 5.0 0.3 01/13/22 01/13/22
Styrene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
Bromoform ND ug/Kg 5.0 0.5 01/13/22 01/13/22
Isopropylbenzene ND ug/Kg 5.0 0.4 01/13/22 01/13/22
1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 0.4 01/13/22 01/13/22 1,2,3-Trichloropropane ND ug/Kg 5.0 0.7 01/13/22 01/13/22 Propylbenzene ND ug/Kg 5.0 0.4 01/13/22 01/13/22
Bromobenzene ND ug/Kg 5.0 0.3 01/13/22 01/13/22
1,3,5-Trimethylbenzene ND ug/Kg 5.0 0.4 01/13/22 01/13/22 2-Chlorotoluene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
4-Chlorotoluene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
tert-Butylbenzene ND ug/Kg 5.0 0.3 01/13/22 01/13/22
1,2,4-Trimethylbenzene ND ug/Kg 5.0 0.5 01/13/22 01/13/22 sec-Butylbenzene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
para-Isopropyl Toluene ND ug/Kg 5.0 0.5 01/13/22 01/13/22 1,3-Dichlorobenzene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
1,4-Dichlorobenzene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
n-Butylbenzene ND ug/Kg 5.0 0.7 01/13/22 01/13/22
1,2-Dichlorobenzene ND ug/Kg 5.0 0.5 01/13/22 01/13/22
1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 0.6 01/13/22 01/13/22 1,2,4-Trichlorobenzene ND ug/Kg 5.0 0.9 01/13/22 01/13/22 Hexachlorobutadiene ND ug/Kg 5.0 0.6 01/13/22 01/13/22
Naphthalene ND ug/Kg 5.0 0.9 01/13/22 01/13/22
1,2,3-Trichlorobenzene ND ug/Kg 5.0 0.5 01/13/22 01/13/22 Xylene (total) ND ug/Kg 5.0 01/13/22 01/13/22
Surrogates Limits
Dibromofluoromethane 107% %REC 70-130 1.3 01/13/22 01/13/22 1,2-Dichloroethane-d4 118% %REC 70-145 01/13/22 01/13/22 Toluene-d8 100% %REC 70-145 01/13/22 01/13/22
Bromofluorobenzene 101% %REC 70-145 1.5 01/13/22 01/13/22 QC966112 Analyte Result Qual Units RL MDL Prepared Analyzed 5 of 9
Batch QC
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Type: Lab Control Sample Lab ID: QC966113 Batch: 281699 Matrix: Soil Method: EPA 8260B Prep Method: EPA 5030B
QC966113 Analyte Result Spiked Units Recovery Qual Limits 1,1-Dichloroethene 56.82 50.00 ug/Kg 114% 70-131
MTBE 49.65 50.00 ug/Kg 99% 69-130
Benzene 49.71 50.00 ug/Kg 99% 70-130
Trichloroethene 52.37 50.00 ug/Kg 105% 70-130
Toluene 49.39 50.00 ug/Kg 99% 70-130
Chlorobenzene 51.30 50.00 ug/Kg 103% 70-130
Surrogates
Dibromofluoromethane 56.18 50.00 ug/Kg 112% 70-130
1,2-Dichloroethane-d4 61.99 50.00 ug/Kg 124% 70-145
Toluene-d8 48.97 50.00 ug/Kg 98% 70-145
Bromofluorobenzene 48.97 50.00 ug/Kg 98% 70-145
Type: Lab Control Sample Duplicate Lab ID: QC966114 Batch: 281699 Matrix: Soil Method: EPA 8260B Prep Method: EPA 5030B
QC966114 Analyte Result Spiked Units Recovery Qual Limits RPD RPD
Lim
1,1-Dichloroethene 57.89 50.00 ug/Kg 116% 70-131 2 33
MTBE 51.61 50.00 ug/Kg 103% 69-130 4 30
Benzene 50.99 50.00 ug/Kg 102% 70-130 3 30
Trichloroethene 53.74 50.00 ug/Kg 107% 70-130 3 30
Toluene 51.04 50.00 ug/Kg 102% 70-130 3 30
Chlorobenzene 52.32 50.00 ug/Kg 105% 70-130 2 30
Surrogates
Dibromofluoromethane 55.90 50.00 ug/Kg 112% 70-130
1,2-Dichloroethane-d4 58.33 50.00 ug/Kg 117% 70-145
Toluene-d8 49.61 50.00 ug/Kg 99% 70-145
Bromofluorobenzene 48.96 50.00 ug/Kg 98% 70-145
Type: Blank Lab ID: QC966734 Batch: 281905
Matrix: Soil Method: EPA 8015M Prep Method: EPA 3580
QC966734 Analyte Result Qual Units RL MDL Prepared Analyzed TPH (C6-C10) ND mg/Kg 9.9 01/16/22 01/17/22
TPH (C10-C44) ND mg/Kg 9.9 01/16/22 01/17/22
Surrogates Limits
n-Triacontane 94% %REC 70-130 01/16/22 01/17/22
6 of 9
Batch QC
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Type: Lab Control Sample Lab ID: QC966735 Batch: 281905 Matrix: Soil Method: EPA 8015M Prep Method: EPA 3580
QC966735 Analyte Result Spiked Units Recovery Qual Limits Diesel C10-C28 299.2 247.5 mg/Kg 121% 76-122
Surrogates
n-Triacontane 9.488 9.901 mg/Kg 96% 70-130
Type: Matrix Spike Lab ID: QC966736 Batch: 281905
Matrix (Source ID): Soil (456813-021) Method: EPA 8015M Prep Method: EPA 3580 QC966736 Analyte Result
Source
Sample
Result Spiked Units Recovery Qual Limits DF
Diesel C10-C28 304.1 3.083 247.5 mg/Kg 122% 62-126 0.99 Surrogates
n-Triacontane 9.264 9.901 mg/Kg 94% 70-130 0.99
Type: Matrix Spike Duplicate Lab ID: QC966737 Batch: 281905 Matrix (Source ID): Soil (456813-021) Method: EPA 8015M Prep Method: EPA 3580 QC966737 Analyte Result
Source
Sample
Result Spiked Units Recovery Qual Limits RPD
RPD
Lim DF
Diesel C10-C28 297.9 3.083 250.0 mg/Kg 118% 62-126 3 35 1 Surrogates
n-Triacontane 9.625 10.00 mg/Kg 96% 70-130 1
Type: Blank Lab ID: QC966746 Batch: 281907
Matrix: Soil Method: EPA 8015M Prep Method: EPA 3580
QC966746 Analyte Result Qual Units RL MDL Prepared Analyzed TPH (C6-C10) ND mg/Kg 10 01/16/22 01/18/22
TPH (C10-C44) ND mg/Kg 10 01/16/22 01/18/22
Surrogates Limits
n-Triacontane 120% %REC 70-130 01/16/22 01/18/22
Type: Lab Control Sample Lab ID: QC966747 Batch: 281907 Matrix: Soil Method: EPA 8015M Prep Method: EPA 3580
QC966747 Analyte Result Spiked Units Recovery Qual Limits Diesel C10-C28 213.9 247.5 mg/Kg 86% 76-122
Surrogates
n-Triacontane 11.17 9.901 mg/Kg 113% 70-130
7 of 9
Batch QC
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Type: Matrix Spike Lab ID: QC966748 Batch: 281907
Matrix (Source ID): Soil (456839-001) Method: EPA 8015M Prep Method: EPA 3580 QC966748 Analyte Result
Source
Sample
Result Spiked Units Recovery Qual Limits DF
Diesel C10-C28 198.1 ND 250.0 mg/Kg 79% 62-126 1
Surrogates
n-Triacontane 10.65 10.00 mg/Kg 106% 70-130 1
Type: Matrix Spike Duplicate Lab ID: QC966749 Batch: 281907 Matrix (Source ID): Soil (456839-001) Method: EPA 8015M Prep Method: EPA 3580 QC966749 Analyte Result
Source
Sample
Result Spiked Units Recovery Qual Limits RPD
RPD
Lim DF
Diesel C10-C28 200.5 ND 251.3 mg/Kg 80% 62-126 1 35 1
Surrogates
n-Triacontane 10.79 10.05 mg/Kg 107% 70-130 1
Type: Blank Lab ID: QC967222 Batch: 282063
Matrix: Soil Method: EPA 9012A
QC967222 Analyte Result Qual Units RL MDL Prepared Analyzed Cyanide ND mg/Kg 0.50 0.035 01/19/22 01/19/22
Type: Lab Control Sample Lab ID: QC967223 Batch: 282063 Matrix: Soil Method: EPA 9012A
QC967223 Analyte Result Spiked Units Recovery Qual Limits Cyanide 5.134 5.000 mg/Kg 103% 85-115
Type: Matrix Spike Lab ID: QC967224 Batch: 282063
Matrix (Source ID): Miscell. (456664-001) Method: EPA 9012A QC967224 Analyte Result
Source
Sample
Result Spiked Units Recovery Qual Limits DF
Cyanide 4.373 ND 5.000 mg/Kg 87% 80-120 1
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Type: Matrix Spike Duplicate Lab ID: QC967225 Batch: 282063 Matrix (Source ID): Miscell. (456664-001) Method: EPA 9012A QC967225 Analyte Result
Source
Sample
Result Spiked Units Recovery Qual Limits RPD
RPD
Lim DF
Cyanide 4.241 ND 5.000 mg/Kg 85% 80-120 3 20 1
J Estimated value
ND Not Detected
9 of 9
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ANALYTICAL REPORT
Eurofins Pittsburgh
301 Alpha Drive
RIDC Park
Pittsburgh, PA 15238
Tel: (412)963-7058
Laboratory Job ID: 180-132122-1
Client Project/Site: BOD on sediment
For:

Physis Environmental Laboratories
1904 Wright Circle
Anaheim, California 92806
Attn: Mark Baker
Authorized for release by:
2/1/2022 10:06:36 AM
Carrie Gamber, Senior Project Manager
(412)963-2428
[email protected]
Designee for
Samantha Bayura, Project Manager I
(412)963-7058
[email protected]
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.

PA Lab ID: 02-00416
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Table of Contents
Client: Physis Environmental Laboratories
Project/Site: BOD on sediment
Laboratory Job ID: 180-132122-1

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Eurofins Pittsburgh
2/1/2022
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 1 2
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Case Narrative
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Job ID: 180-132122-1
Laboratory: Eurofins Pittsburgh
Narrative

CASE NARRATIVE
Client: Physis Environmental Laboratories
Project: BOD on sediment
Report Number: 180-132122-1
With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control limits, with any exceptions noted below. Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of the method. In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples, the reporting limits are adjusted relative to the dilution required.

Calculations are performed before rounding to avoid round-off errors in calculated results.

All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the individual sections below.

RECEIPT
The samples were received on 1/8/2022 11:15 AM. Unless otherwise noted below, the samples arrived in good condition, and where required, properly preserved and on ice. The temperature of the cooler at receipt was 2.6º C.

The Field Sampler was not listed on the Chain of Custody.

GENERAL CHEMISTRY
The method blank result associated with batch 180-385118 for BOD analysis was higher than the method-required limit of 0.2 mg/L.

Test replicates showed >30% RPD between the highest and lowest replicate for the following sample: 2021-E2-BASINSMGL-01 (180-132122-1) and (180-132122-A-1 DU).

Eurofins Pittsburgh Page 3 of 16 2/1/2022
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Definitions/Glossary
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Qualifiers
General Chemistry
Qualifier Description
b Result Detected in the Unseeded Control blank (USB).

Qualifier
cn Refer to Case Narrative for further detail
Glossary
These commonly used abbreviations may or may not be present in this report. ¤ Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
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Accreditation/Certification Summary
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Laboratory: Eurofins Pittsburgh
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.

Authority Program Identification Number Expiration Date California State 2891 04-30-22
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification.

Analysis Method Prep Method Matrix Analyte
2540G Sediment Percent Moisture
2540G Sediment Percent Solids
SM 5210B Sediment Biochemical Oxygen Demand
Eurofins Pittsburgh

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Sample Summary
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Lab Sample ID Client Sample ID Matrix Collected Received 180-132122-1 2021-E2-BASINSMGL-01 Sediment 01/07/22 13:00 01/08/22 11:15 180-132122-2 2021-E2-BASINTJRVR-01 Sediment 01/07/22 09:10 01/08/22 11:15 180-132122-3 2021-E2-BRWNFL-01 Sediment 01/07/22 14:45 01/08/22 11:15 180-132122-4 2021-E2-FLDCHNL-01 Sediment 01/07/22 10:35 01/08/22 11:15 180-132122-5 2021-E2-SMGLPILOT-01 Sediment 01/07/22 13:55 01/08/22 11:15

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Method Summary
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Method Method Description Protocol Laboratory
2540G SM 2540G SM22 TAL PIT
SM 5210B 5 Day BOD test SM TAL PIT
Protocol References:

SM = "Standard Methods For The Examination Of Water And Wastewater" SM22 = Standard Methods For The Examination Of Water And Wastewater, 22nd Edition Laboratory References:

TAL PIT = Eurofins Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL (412)963-7058 Eurofins Pittsburgh

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Lab Chronicle
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Client Sample ID: 2021-E2-BASINSMGL-01 Lab Sample ID: 180-132122-1 Date Collected: 01/07/22 13:00 Matrix: Sediment
Date Received: 01/08/22 11:15
Analysis 2540G 1 384717 01/10/22 17:09 CMR TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-BASINSMGL-01 Lab Sample ID: 180-132122-1 Date Collected: 01/07/22 13:00 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 80.9
Analysis SM 5210B 1 385118 01/08/22 14:46 ELS TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.80 g 300 mL
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-BASINTJRVR-01 Lab Sample ID: 180-132122-2 Date Collected: 01/07/22 09:10 Matrix: Sediment
Date Received: 01/08/22 11:15
Analysis 2540G 1 384717 01/10/22 17:09 CMR TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-BASINTJRVR-01 Lab Sample ID: 180-132122-2 Date Collected: 01/07/22 09:10 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 94.3
Analysis SM 5210B 1 385118 01/08/22 14:46 ELS TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.80 g 300 mL
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-BRWNFL-01 Lab Sample ID: 180-132122-3 Date Collected: 01/07/22 14:45 Matrix: Sediment
Date Received: 01/08/22 11:15
Analysis 2540G 1 384717 01/10/22 17:09 CMR TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-BRWNFL-01 Lab Sample ID: 180-132122-3 Date Collected: 01/07/22 14:45 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 93.9
Analysis SM 5210B 1 385118 01/08/22 15:17 ELS TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.80 g 300 mL
Instrument ID: NOEQUIP
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Lab Chronicle
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Client Sample ID: 2021-E2-FLDCHNL-01 Lab Sample ID: 180-132122-4 Date Collected: 01/07/22 10:35 Matrix: Sediment
Date Received: 01/08/22 11:15
Analysis 2540G 1 384717 01/10/22 17:09 CMR TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-FLDCHNL-01 Lab Sample ID: 180-132122-4 Date Collected: 01/07/22 10:35 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 85.1
Analysis SM 5210B 1 385118 01/08/22 15:17 ELS TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.80 g 300 mL
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-SMGLPILOT-01 Lab Sample ID: 180-132122-5 Date Collected: 01/07/22 13:55 Matrix: Sediment
Date Received: 01/08/22 11:15
Analysis 2540G 1 384717 01/10/22 17:09 CMR TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA
Instrument ID: NOEQUIP
Client Sample ID: 2021-E2-SMGLPILOT-01 Lab Sample ID: 180-132122-5 Date Collected: 01/07/22 13:55 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 91.9
Analysis SM 5210B 1 385118 01/08/22 15:17 ELS TAL PIT
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.80 g 300 mL
Instrument ID: NOEQUIP
Laboratory References:

TAL PIT = Eurofins Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL (412)963-7058 Analyst References:

Lab: TAL PIT
Batch Type: Analysis
CMR = Carl Reagle
ELS = Edwin Shireman
Eurofins Pittsburgh

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Client Sample Results
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Client Sample ID: 2021-E2-BASINSMGL-01 Lab Sample ID: 180-132122-1 Date Collected: 01/07/22 13:00 Matrix: Sediment
Date Received: 01/08/22 11:15
General Chemistry
RL MDL
Percent Moisture 19.1 0.1 0.1 % 01/10/22 17:09 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Solids 80.9 0.1 0.1 % 01/10/22 17:09 1
Client Sample ID: 2021-E2-BASINSMGL-01 Lab Sample ID: 180-132122-1 Date Collected: 01/07/22 13:00 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 80.9
General Chemistry
RL MDL
Biochemical Oxygen Demand 1400 b cn 930 930 mg/Kg ☼ 01/08/22 14:46 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Client Sample ID: 2021-E2-BASINTJRVR-01 Lab Sample ID: 180-132122-2 Date Collected: 01/07/22 09:10 Matrix: Sediment
Date Received: 01/08/22 11:15
General Chemistry
RL MDL
Percent Moisture 5.7 0.1 0.1 % 01/10/22 17:09 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Solids 94.3 0.1 0.1 % 01/10/22 17:09 1
Client Sample ID: 2021-E2-BASINTJRVR-01 Lab Sample ID: 180-132122-2 Date Collected: 01/07/22 09:10 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 94.3
General Chemistry
RL MDL
Biochemical Oxygen Demand ND 800 800 mg/Kg ☼ 01/08/22 14:46 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Client Sample ID: 2021-E2-BRWNFL-01 Lab Sample ID: 180-132122-3 Date Collected: 01/07/22 14:45 Matrix: Sediment
Date Received: 01/08/22 11:15
General Chemistry
RL MDL
Percent Moisture 6.1 0.1 0.1 % 01/10/22 17:09 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Solids 93.9 0.1 0.1 % 01/10/22 17:09 1
Client Sample ID: 2021-E2-BRWNFL-01 Lab Sample ID: 180-132122-3 Date Collected: 01/07/22 14:45 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 93.9
General Chemistry
RL MDL
Biochemical Oxygen Demand ND 800 800 mg/Kg ☼ 01/08/22 15:17 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Client Sample ID: 2021-E2-FLDCHNL-01 Lab Sample ID: 180-132122-4 Date Collected: 01/07/22 10:35 Matrix: Sediment
Date Received: 01/08/22 11:15
General Chemistry
RL MDL
Percent Moisture 14.9 0.1 0.1 % 01/10/22 17:09 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Eurofins Pittsburgh

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Client Sample Results
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Client Sample ID: 2021-E2-FLDCHNL-01 Lab Sample ID: 180-132122-4 Date Collected: 01/07/22 10:35 Matrix: Sediment
Date Received: 01/08/22 11:15
General Chemistry (Continued)
RL MDL
Percent Solids 85.1 0.1 0.1 % 01/10/22 17:09 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Client Sample ID: 2021-E2-FLDCHNL-01 Lab Sample ID: 180-132122-4 Date Collected: 01/07/22 10:35 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 85.1
General Chemistry
RL MDL
Biochemical Oxygen Demand ND 880 880 mg/Kg ☼ 01/08/22 15:17 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Client Sample ID: 2021-E2-SMGLPILOT-01 Lab Sample ID: 180-132122-5 Date Collected: 01/07/22 13:55 Matrix: Sediment
Date Received: 01/08/22 11:15
General Chemistry
RL MDL
Percent Moisture 8.1 0.1 0.1 % 01/10/22 17:09 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Solids 91.9 0.1 0.1 % 01/10/22 17:09 1
Client Sample ID: 2021-E2-SMGLPILOT-01 Lab Sample ID: 180-132122-5 Date Collected: 01/07/22 13:55 Matrix: Sediment
Date Received: 01/08/22 11:15 Percent Solids: 91.9
General Chemistry
RL MDL
Biochemical Oxygen Demand ND 820 820 mg/Kg ☼ 01/08/22 15:17 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Eurofins Pittsburgh

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QC Sample Results
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
Method: SM 5210B - 5 Day BOD test
Lab Sample ID: USB 180-385118/1 Client Sample ID: Method Blank Matrix: Sediment Prep Type: Total/NA
Analysis Batch: 385118
RL MDL
Biochemical Oxygen Demand ND 2.0 2.0 mg/Kg 01/08/22 14:46 1

USB USB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Lab Sample ID: LCS 180-385118/2 Client Sample ID: Lab Control Sample Matrix: Sediment Prep Type: Total/NA
Analysis Batch: 385118
Biochemical Oxygen Demand 198 204 mg/Kg 103 85 - 115
Analyte

LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
Lab Sample ID: 180-132122-1 DU Client Sample ID: 2021-E2-BASINSMGL-01 Matrix: Sediment Prep Type: Total/NA
Analysis Batch: 385118
Biochemical Oxygen Demand 1400 b cn ND cn mg/Kg ☼ NC 20 Analyte
DU DU
Result Qualifier Unit D
Sample
Result
Sample
Qualifier RPD Limit
RPD
Eurofins Pittsburgh

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QC Association Summary
Client: Physis Environmental Laboratories Job ID: 180-132122-1 Project/Site: BOD on sediment
General Chemistry
Analysis Batch: 384717
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 180-132122-1 2021-E2-BASINSMGL-01 Total/NA Sediment 2540G 180-132122-2 2021-E2-BASINTJRVR-01 Total/NA Sediment 2540G 180-132122-3 2021-E2-BRWNFL-01 Total/NA Sediment 2540G
180-132122-4 2021-E2-FLDCHNL-01 Total/NA Sediment 2540G 180-132122-5 2021-E2-SMGLPILOT-01 Total/NA Sediment 2540G Analysis Batch: 385118
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 180-132122-1 2021-E2-BASINSMGL-01 Total/NA Sediment SM 5210B 180-132122-2 2021-E2-BASINTJRVR-01 Total/NA Sediment SM 5210B 180-132122-3 2021-E2-BRWNFL-01 Total/NA Sediment SM 5210B 180-132122-4 2021-E2-FLDCHNL-01 Total/NA Sediment SM 5210B 180-132122-5 2021-E2-SMGLPILOT-01 Total/NA Sediment SM 5210B USB 180-385118/1 Method Blank Total/NA Sediment SM 5210B LCS 180-385118/2 Lab Control Sample Total/NA Sediment SM 5210B 180-132122-1 DU 2021-E2-BASINSMGL-01 Total/NA Sediment SM 5210B Eurofins Pittsburgh

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Login Sample Receipt Checklist
Client: Physis Environmental Laboratories Job Number: 180-132122-1 Login Number: 132122
Question Answer Comment
Creator: Watson, Debbie
List Source: Eurofins Pittsburgh
List Number: 1
Radioactivity wasn't checked or is </= background as measured by a survey N/A meter.

The cooler's custody seal, if present, is intact. True
Sample custody seals, if present, are intact. True
The cooler or samples do not appear to have been compromised or True tampered with.

Samples were received on ice. True
Cooler Temperature is acceptable. True
Cooler Temperature is recorded. True
COC is present. True
COC is filled out in ink and legible. True
COC is filled out with all pertinent information. True
Is the Field Sampler's name present on COC? False
There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs)
Sample containers have legible labels. True
Containers are not broken or leaking. True
Sample collection date/times are provided. True
Appropriate sample containers are used. True
Sample bottles are completely filled. True
Sample Preservation Verified. True
There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs
Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4").

Multiphasic samples are not present. True
Samples do not require splitting or compositing. True
Residual Chlorine Checked. N/A
Eurofins Pittsburgh Page 16 of 16 2/1/2022
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Sample Description Appearance Result Notes
Test Report: Asbestos Analysis via Polarized Light Microscopy, Qualitative Attn: Misty Mercier
Physis Environmental Laboratories, Inc.
1904 E. Wright Circle
Anaheim, CA 92806
Received: 1/10/2022 12:40 PM
Fax: (714) 602-5321
Phone: (714) 602-5320
Analysis Date: 1/17/2022
Collected: 1/7/2022
LA Testing
5431 Industrial Drive, Huntington Beach, CA 92649
Phone/Fax: (714) 828-4999 / (714) 828-4944
http://www.LATesting.com [email protected]
332200783
CustomerID: PHEL29
CustomerPO:

ProjectID:

LA Testing Order:
2021-E2-
BASINSMGL-01
332200783-0001
Brown/Gray/White None Detected
Fibrous
Heterogeneous
2021-E2-
BASINTJRVR-01
332200783-0002
Brown/Gray/White None Detected
Fibrous
Heterogeneous
2021-E2-BRWNFL-01
332200783-0003
Brown/Gray None Detected
Non-Fibrous
Heterogeneous
2021-E2-FLDCHNL01
332200783-0004
Brown/Gray None Detected
Non-Fibrous
Heterogeneous
2021-E2-
SMGLPILOT-01
332200783-0005
Brown/Gray/White None Detected
Fibrous
Heterogeneous
Michael Chapman, Laboratory Manager
or other approved signatory
Test Report PLMQualw/Types-7.21.0 Printed: 1/17/2022 9:42:45 AM 1 Analyst(s)
THIS IS THE LAST PAGE OF THE REPORT.

LA Testing maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by LA Testing. LA Testing bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. LA Testing suggests that samples reported as none detected undergo additional analysis via TEM to avoid the possibility of false negatives.

Samples analyzed by LA Testing Huntington Beach, CA
Alexis Rodriguez (5)
Initial report from 01/17/2022 09:42:45

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wood. Chain of Custody
Page I. or .c;- From: To: Lab Notes:

Wood (formerly Amee FW) Physis Environmental laboratorie Submit data in CEDEN format to Sarah Seifert at sarah.seifert@woodplc .com 9177 Sky Park Court 1904 East Wright Circle Dylan Cawthorne at [email protected] San Diego, CA 92123 Anaheim, CA 92806 and Matt Rich at [email protected] (858) 514-7729 714-602-5320 ext 204 (858) 278-5300 Fax
Contact: Sarah Seifert 760-484-0482 Contact: Mark Baker PO#: Project Number: Project Name: Sample Matrix:

C015101891 5025210002 Tijuana River Sediment Management Monitoring Sediment No. of SamplelD Sample Date Sample Time Sample Type Analysis Container Pres Containers l/7/2cei_ }1:cc Gross Alpha, Gross Beta (EPA 900.0) 500 ml HOPE - 1 2021-E2-BASINSMGL-01 Grab !/7/-2czz oq~,o Gross Alpha, Gross Beta (EPA 900.0) 500 ml HOPE - 1 2021-E2-BASINT JRVR-01 Grab 1)1)2o2-z ) /.J-S Gross Alpha, Gross Beta (EPA 900.0) 500 ml HOPE - 1 2021-E2-BRWNFL-01 Grab J/7J7ra~? /0: >5' Gross Alpha, Gross Beta (EPA 900.0) 500 ml HOPE - 1 2021 -E2-FLDCHNl-01 Grab t/7/:2o~ I::,: ~s Gross Alpha, Gross Beta (EPA 900.0) 500 ml HOPE - 1 2021-E2-SMGlPllOT-01 Grab 2021-E2-BASINSMGl-01 t I?/ 2ot..,z 13:·oo Grab Particle Size Distribution (SM 2560 D) 5" x 8" Plastic Bag - 1 2021-E2-BASINT JRVR-01 I '7/ 2ot.e. oq; 1n Grab particle Size Distribution (SM 2560 D) 5• x 8" Plastic Bag - 1 2021-E2-BRWNFl-01 I. 7, ' '2.oez 14.f ;11-5 Grab Particle Size Distribution (SM 2560 D) 5• x 8" Plastic Bag - 1 2021-E2-FLDCHNl-01 L 7,_ ZP~-?. ID ;- .35 Grab Particle Size Distribution (SM 2560 D) 5" x 8" Plastic Bag - 1 2021-E2-SMGlPllOT-01 IJ 7, 7o~.z B~~s' Grab Particle Size Distribution (SM 2560 D) 5• x 8" Plastic Bag - 1 Soeclal Instructions/Comments:
;
' I
I
~mpled and Relinquished By: Recbiv!id By:

Print: Py{ilt'\ C14v i(q."° Date/Time: <Jl/'i'/202,~ ~ ~ h.l'l Date/Time: ~.'k t::J+f d-r Slan: IJ. / . ,.,:;.~ 1s:·11- ,M (' ~ 1S Print: Date!Time: ./ Date/Time:

Sign: Sign:

Print: Date/Time: · Print: Date/Time:

Sign: Sign:

Page 878 of 957 ends

~ood. Chain of Custody .~
Page ? of :;J
From: To: Lab Notes:

Wood (formerly Amee FW) Physis Environmental Laboratorie Submit data in CEDEN format to Sarah Seifert at [email protected] 9177 Sky Park Court 1904 East Wright Circle Dylan Cawthorne at dylan:[email protected] San Diego, CA 92123 Anaheim, CA 92806 and Matt Rich at [email protected] · (858) 514-7729 714-602-5320 ext 204
(858) 278-5300 Fax ,
Contact: Sarah Seifert 760-484-0482 Contact: Mark Baker PO#: Project Number: Project Name: Sample Matrix:

C015101891 5025210002 Tijuana River Sediment Management Monitoring Water No.of
SamplelD Sample Date Sample Time Sample Type Analysis Container Pres Containers 2021-E2- //7 J OJ~? // -' Q ll Sulfate, Nitrate, Nitrite (EPA 300) 250 ml HPDE • 1 EQUIPBLANK NUTRIENTS "- l J Grab 2021-E2- // 7 / •?,v1 .-, /I J {) 0 Metals (EPA 200.8) 250 ml HPDE - 1 EQUIPBLANK METALS • ~ b G- / Grab 2021-E2- / J 7/ '211~.,, 11/ .'' OD Mercury(EPA245.7} 250 ml jar - 1 EQUIPBLANK MERCURY I/ /J Grab II JI /)of;. //:· ()O Oil & Grease (SM 5520E/EPA 1664) 1 Ljar H2S04 1 2021-E2-EQUIPBLANK O&G / Grab Sriecial Instructions/Comments:

Sampled and Relinquished By: Recelvea B1 : •
Print: Dvl"" (~vJ'I-Aor-tQ Date/Time: lj7l~f.e. Priny .,.~t:~::-~~--"" Date/Time: 01/0,7/Gr Slan: 4=,~_,,..,_,,,t4_,,,.A.. ff;',ll:;" si&{n: ,. __ ("\~>-..1,,lll./ 161 V ' ,,_... \ - ··7
Print: Date/Time: Pri~ Date/Time:

Slan: Sic:m:

Print: DatefTime: Print: DatefTime:

Slan: Stan:

Page 879 of 957 ends

'
'
.:·WOOd. Chain of Custody
Page ofJ
From: To: Lab Notes:

Wood (formerly Amee FW) Physis Environmental Laboratorie Submit data in CEDEN format to Sarah Seifert at [email protected] 9177 Sky Park Court 1904 East Wright Circle Dylan Cawthorne at [email protected] San Diego, CA 92123 Anaheim, CA 92806 and Matt Rich at [email protected] (858) 514-7729 714-602-5320 ext 204
' (858) 278-5300 Fax
.. Contact: Sarah Seifert 760-484-0482 Contact: Mark Baker PO#: Project Number: Project Name: Sample Matrix:

C015101891 5025210002 Tijuana River Sediment Management Monitoring Sediment No.of
SamplelD Sample Date Sample Time Sample Type Analysis Container Pres Containers 1/7/2022 I 3,·00 Asbestos (PLM Qualitative) 4 oz jar - 1 2021-E2-BASINSMGL-01 Grab t/7/2-oz~ Oq:/o Asbestos (PLM Qualitative) 4 oz jar - 1 2021-E2-BASINT JRVR-01 Grab t/7)'2P£2 /4-:45' Asbestos (PLM Qualitative) 4 oz jar - 1 2021-E2-BRWNFL-01 Grab I /7/2J11.:2 (Dt3S Asbestos (PLM Qualitative) 4 oz jar - 1 2021-E2-FLDCHNL-01 Grab 1 /7/~,z,z /3; S-5 Asbestos (PLM Qualitative) 4 oz jar - 1 2021-E2-SMGLPILOT-01 Grab Soecial Instructions/Comments:

Sampled and Relinquished By: Receivtd By:

Print: p~ Co.wtlto,...11e. l/7/&0-z~ --'-'\.11..... \~i, Date/Time: Pt•~- 0) / 0-7+-/ ~0-- - ~ Date/Time: Sign: ",n A_,,,_,,__. l'vuA--t:...- ir::-;-ts IQn: 1w,..(', \h'-5 Print: Date/Time: p\... r1, .... - _..,/ Date/Time:

Sign: Sign:

Print: Date/Time: Print: Date/Time:

Sign: Sign:

Page 880 of 957 ends

_\
~ood. Chain of Custody
Page X/-, of 1
From: To: Lab Notes:

Wood (formerly Amee FW) Physis Environmental Laboratorie Submit data in CEDEN format to Sarah Seifert at [email protected] 9177 Sky Park Court 1904 East Wright Circle Dylan Cawthorne at [email protected] San Diego, CA 92123 Anaheim, CA 92806 and Matt Rich at [email protected] (858) 514-7729 714-602-5320 ext 204 (858) 278-5300 Fax
Contact: Sarah Seifert 760-484-0482 Contact: Mark Baker PO#: Project Number: Project Name: I Sample Matrix:

C015101891 5025210002" Tijuana River Sediment Management Monitoring Sediment No. of
SamplelD Sample Date Sample Time Sample Type Analysis Container Pres Containers ) /7 /2.(}'2,Z -r~:oo Metals, Trace Mercury, % Solids, TOC, Alkalinity, Chloride, Sulfate, Total Sulfides, Dissolved Sulfides, Nitrate, Nitrite, Oil & Grease, TPH, RPH, 8 ozjar - 1 2021 -E2-BASINSMGL-01 Grab. SVOC's, OCPs, PC8s, OPPs, Toxaphene, PAHs, Pyrethroids l/?l2oEz oq: 16 Metals, Trace Mercury, % Solids, TOC, Alkalinity, Chloride, Sulfate, Total Sulfides, Dissolved Sulfides, Nitrate, Nitrite, Oil & Grease, TPH, RPH, 8 oz jar - 1 2021-E2-8ASINT JRVR-01 Grab SVOC's, OCPs, PC8s, OPPs, Toxaphene, PAHs, Pyrethroids 1/7( 2022 ,~~4s- Metals, Trace Mercury, % Solids, TOC, Alkalinity, Chloride, Sulfate, Total Sulfides, Dissolved Sulfides, Nitrate, Nitrite, Oil & Grease, TPH, RPH, 8 ozjar - 1 2021-E2-8RWNFL-01 Grab SVOC's, OCPs, PC8s, OPPs, Toxaphene, PAHs, Pyrethroids I / 7 )-zc}t,t. /d :.3b Metals, Trace Mercury, % Solids, TOC, Alkalinity, Chloride, Sulfate, Total Sulfides, Dissolved Sulfides, Nitrate, Nitrite, Oil & Grease, TPH, RPH, 8 oz jar - 1 2021-E2-FLDCHNL-01 Grab SVOC's, OCPs, PCBs, OPPs, Toxaphene, PAHs, Pyrethroids I/ 7):zoez /3 :,5 Metals, Trace Mercury, % Solids, TOC, Alkalinity, Chloride, Sulfate, Total Sulfides, Dissolved Sulfides, Nitrate, Nitrite, Oil & Grease, TPH, RPH, 8 oz jar . 1 2021-E2-SMGLPILOT-01 Grab SVOC's, OCPs, PCBs, OPPs, Toxaphene, PAHs, Pyrethroids t 17 I 2t:Je-z /3:00 Cyanide (EPA 9010B/9014), voes (EPA 8260/82608), TPH-CC (EPA 801!'\B 8 oz jar - 1 2021-E2-BASINSMGL-01 Grab EPHand PPH) 1/7}&.J~z. oq ,·10 Cyanide (EPA 9010B/9014), voes (EPA 8260/8260B), TPH-CC (EPA 8015B 8 oz jar - 1 2021-E2-BASINT JRVR-01 Grab EPH and PPH) l/7/~~z /1..j.:Lf., Cyanide (EPA 90108/9014), voes (EPA 8260/82608), TPH-CC (EPA 8015B 8 oz jar - 1 2021-E2-BRWNFL-01 Grab EPHand PPH) I) 7/2kJt-z. /013') Cyanide .(EPA 90108/9014), voes (EPA 8260/8260B), TPH-CC (EPA 8015B 8 oz jar - 1 2021-E2-FLDCHNL-01 Grab EPH and PPH) 2021-E2-SMGLPILOT -:()1 i/7/~-z f 3; YS Grab Cyanide (EPA 9010B/9014),_ voes (EPA 8260/8260B), TPH-CC (EPA 8015B EPHand PPH) 8 oz jar - 1 Special Instructions/Comments:

Sampled and Relinquished By: Receivll,d By:

Print: /) y 4,./\ (~.., 'f,/t(lr,e,. Date/Time: l/7/'2f)C~ p~'°"~ Date/Time: Ol ) f_,-:1--/,;»- Sign: "r-Pvwt. ~ - 1cr:-1, n: . ...J:ar, () \ \~ Print: Date/Time: Pri~ _.,, Date/Time:

Sign: Sign:

Print: Date/Time: Print: Date/Time:

Sign: Sig'n:

Page 881 of 957 ends

·wood. Chain of Custody
Page !;" of j"' From: To: Lab Notes:
. Wood (formerly Amee FW) Physis Environmental Laboratorie Submit data in CEDEN format to Sarah Seifert at [email protected] .. 9177 Sky Park Court 1904 East Wright Circle Dylan Cawthorne at [email protected] San Diego, CA 92123 Anaheim, CA 92806 and Matt Rich at [email protected] . ,(858) 514-7729 714-602-5320 ext 204
(858) 278-5300 Fax
Contact: Sarah Seifert 760-484-0482 Contact: Mark Baker PO#: Project Number: Project Name: Sample Matrix:

C015101891 5025210002 Tijuana River Sediment Management Monitoring Sediment SamplelD Sample Date Sample Time Sample Type Analysis
No.of
Container Pres Containers
I /?/2o22 /3:bc, BOD (SM 52108) 4 oz jar - 1 2021-E2-BASINSMGL-01 Grab I /?/2oz2 09:10 BOD (SM 5210B) 4 oz jar - 1 2021-E2-BASINT JRVR-01 Grab I /7 / :?r:;-2:Z ff:Lf f' BOD (SM 5210B) 4 oz jar - 1 2021-E2-BRWNFL--01 Grab 1/7/2022 lo :.36' BOD (SM 5210B) 4 oz jar - 1 2021-E2-FLDCHNL-01 Grab ! ,; 7/iv~t. I~; S-S- BOD (SM 5210B) 4 oz jar - 1 2021-E2-SMGLPILOT-01 Grab I Sneclal Instructions/Comments:

Sampled and Relinquished By: Receive,, By:

Print: /)ylV\ (i.,,A,fir; fr ...e Date/Time: l/7 ~~Z, Ll!C:Ff/&~ rs:= Date/Time: Sian: JI .14-? I r:;;'l_r;- gn: lvv.. C-, \bl~ Print: Date/Time: p~•- _/ Date/Time:

I
Sign: Sig/i:

Print: Date/Time: Print, Date/Time:
.,
Sign: Sign:

Page 882 of 957 ends

Innovative Solutions for Nature
Sample Receipt Summary
Receiving Info

1. Initials Received By: ;;:-:4-=~~~7'

2. Date Received: _...,...<....t..,,.__..,<.....J.-1-C;z::;=- PHYSI
Project Iteration ID: 2109001-002
Client Name: Wood Environment &
Infrastructure Solutions, Inc.

Project Name: Tijuana River Sediment
Management Monitoring Program
Project# 5025-21-0002
COC Page Number: 6. of 6
Bottle Label Color: NA

3. Time Received:---,-......,.f'...L--=-___,.c-i-- . ()~ _ .. L. ~S~/'/.0 1 A-~;~c_

4. Client Name: _ __,....c.'"'-'...a.'-"'---,::------------!'--~~===----- ~~..:.....J'--~-= < = ~ 5. Courier Information: (Please circle) • Client • UPS • Area Fast • DRS
• GSO/GLS • Ontrac • PAMS
iii. Total Mileage: ______ _
iv. Number of Pickups: ____ _

6. Co~iner Information: (Please put the # of containers or circle none) • ~ Cooler • _ Styrofoam Cooler • _ _ Boxes • None 7.ef • _ Carboy(s) • _Carboy Trash Can(s) • __ Carboy Cap(s) • Other ---- ice was used: (Please circle any that apply)
• Wet Ice • Blue Ice • Q Ice • Water • None

8. my Selected Samples Temperature (
0 C): ~ } Used 1/R Thermometer# ~
Inspection Info ~

1. Initials Inspected By:~
Sample Integrity Upon Receipt:

1. COC(s) included and completely filled out......................................................... e

2. All sample containers arrived intact.................................................................... e

3. All samples listed on COC(s) are present............................................................ e

4. Information on containers consistent with information on COC(s)............... e

5. Correct containers and volume for all analyses indicated ............................. .

6. All samples received within method holding time ......................................... ..

7. Correct preservation used for all analyses indicated ..................................... ..

8. Name of sampler included on COC(s)................................................................ e Notes:

P.\Sample Logistics (SL)\SRS
/ No
/ No
/ No
/ No
/ No
/ No
/ No
/ No

Page 1 of 1 ends

Page 883 of 957 ends

Tijuana River Valley Sediment Management Plan and Monitoring Program Technical Results Memorandum
July 2022

ATTACHMENT H
FDS for Trash Evaluations

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TIJUANA RIVER SEDIMENT MANAGEMENT WORK PLAN
Funding provided by State Coastal Conservancy through Proposition 68 California Drought, Water, Parks, Climate, Coastal Protection, and Outdoor Access for All Act of 2018 resources Appendix C
Guidelines and Required Forms
for the Republic Services Landfills in San Diego

Page 898 of 957 ends

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Imperial Beach City CouncilMarch 15, 2023

Imperial Beach City Council
March 15, 2023