Signal Hill City Council
July 12, 2022

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV6-10 (2107188-02) Soil Sampled: 07/13/21 07:44 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 90.3 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 42.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 58.8 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 83.3 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 34.4 % 19-122 " " " "
Surrogate: Terphenyl-d14 113 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV6-10 (2107188-02) Soil Sampled: 07/13/21 07:44 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV6-15 (2107188-03) Soil Sampled: 07/13/21 07:51 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 83.7 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 34.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 48.1 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 76.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 23.7 % 19-122 " " " "
Surrogate: Terphenyl-d14 44.6 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV6-15 (2107188-03) Soil Sampled: 07/13/21 07:51 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV7-5 (2107188-04) Soil Sampled: 07/13/21 08:15 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 77.3 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 85.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 41.2 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 104 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 82.9 % 19-122 " " " "
Surrogate: Terphenyl-d14 77.4 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV7-5 (2107188-04) Soil Sampled: 07/13/21 08:15 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV7-10 (2107188-05) Soil Sampled: 07/13/21 08:25 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 89.6 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 43.5 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 47.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 74.5 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 80.8 % 19-122 " " " "
Surrogate: Terphenyl-d14 102 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV7-10 (2107188-05) Soil Sampled: 07/13/21 08:25 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV7-15 (2107188-06) Soil Sampled: 07/13/21 08:30 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 69.8 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 64.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 36.9 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 41.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 78.2 % 19-122 " " " "
Surrogate: Terphenyl-d14 129 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV7-15 (2107188-06) Soil Sampled: 07/13/21 08:30 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV8-5 (2107188-07) Soil Sampled: 07/13/21 08:56 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 119 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 31.3 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 48.1 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 42.5 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 29.5 % 19-122 " " " "
Surrogate: Terphenyl-d14 45.6 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV8-5 (2107188-07) Soil Sampled: 07/13/21 08:56 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV8-10 (2107188-08) Soil Sampled: 07/13/21 08:58 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 105 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 79.2 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 51.9 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 61.3 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 53.7 % 19-122 " " " "
Surrogate: Terphenyl-d14 90.2 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV8-10 (2107188-08) Soil Sampled: 07/13/21 08:58 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV8-15 (2107188-09) Soil Sampled: 07/13/21 09:06 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 95.7 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 28.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 85.6 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 105 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 50.9 % 19-122 " " " "
Surrogate: Terphenyl-d14 122 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV8-15 (2107188-09) Soil Sampled: 07/13/21 09:06 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV9-5 (2107188-10) Soil Sampled: 07/13/21 09:19 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 99.3 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 77.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 52.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 45.8 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 59.7 % 19-122 " " " "
Surrogate: Terphenyl-d14 99.6 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV9-5 (2107188-10) Soil Sampled: 07/13/21 09:19 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV9-10 (2107188-11) Soil Sampled: 07/13/21 09:22 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 90.1 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 56.8 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 44.2 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 38.5 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 42.3 % 19-122 " " " "
Surrogate: Terphenyl-d14 95.3 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV9-10 (2107188-11) Soil Sampled: 07/13/21 09:22 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV9-15 (2107188-12) Soil Sampled: 07/13/21 09:24 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 95.9 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 47.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 80.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 64.1 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 49.9 % 19-122 " " " "
Surrogate: Terphenyl-d14 71.1 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV9-15 (2107188-12) Soil Sampled: 07/13/21 09:24 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV10-5 (2107188-13) Soil Sampled: 07/13/21 09:32 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 103 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 71.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 73.2 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 50.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 83.4 % 19-122 " " " "
Surrogate: Terphenyl-d14 44.3 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV10-5 (2107188-13) Soil Sampled: 07/13/21 09:32 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV10-10 (2107188-14) Soil Sampled: 07/13/21 09:36 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 103 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 65.1 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 51.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 83.2 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 57.1 % 19-122 " " " "
Surrogate: Terphenyl-d14 87.8 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV10-10 (2107188-14) Soil Sampled: 07/13/21 09:36 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV10-15 (2107188-15) Soil Sampled: 07/13/21 09:52 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 101 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 32.2 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 48.3 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 76.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 82.8 % 19-122 " " " "
Surrogate: Terphenyl-d14 58.0 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV10-15 (2107188-15) Soil Sampled: 07/13/21 09:52 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV11-5 (2107188-16) Soil Sampled: 07/13/21 10:16 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 104 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 77.2 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 54.4 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 48.9 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 73.3 % 19-122 " " " "
Surrogate: Terphenyl-d14 102 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV11-5 (2107188-16) Soil Sampled: 07/13/21 10:16 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV11-10 (2107188-17) Soil Sampled: 07/13/21 10:20 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 93.7 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 77.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 52.6 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 80.9 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 45.2 % 19-122 " " " "
Surrogate: Terphenyl-d14 52.4 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV11-10 (2107188-17) Soil Sampled: 07/13/21 10:20 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV11-15 (2107188-18) Soil Sampled: 07/13/21 10:26 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 95.9 % 25-121 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C Surrogate: Phenol-d6 25.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 59.6 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 86.7 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 39.3 % 19-122 " " " "
Surrogate: Terphenyl-d14 56.2 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV11-15 (2107188-18) Soil Sampled: 07/13/21 10:26 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1603 07/15/21 07/16/21 08:50 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV12-5 (2107188-19) Soil Sampled: 07/13/21 10:49 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 93.4 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 68.0 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 36.9 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 66.9 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 42.3 % 19-122 " " " "
Surrogate: Terphenyl-d14 72.7 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV12-5 (2107188-19) Soil Sampled: 07/13/21 10:49 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV12-10 (2107188-20) Soil Sampled: 07/13/21 10:58 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 78.5 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 31.5 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 42.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 106 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 80.9 % 19-122 " " " "
Surrogate: Terphenyl-d14 49.7 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV12-10 (2107188-20) Soil Sampled: 07/13/21 10:58 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV12-15 (2107188-21) Soil Sampled: 07/13/21 11:07 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 89.4 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 26.1 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 35.1 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 77.8 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 27.8 % 19-122 " " " "
Surrogate: Terphenyl-d14 114 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV12-15 (2107188-21) Soil Sampled: 07/13/21 11:07 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV13-5 (2107188-22) Soil Sampled: 07/13/21 11:26 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 101 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 67.4 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 50.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 89.7 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 52.0 % 19-122 " " " "
Surrogate: Terphenyl-d14 68.6 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV13-5 (2107188-22) Soil Sampled: 07/13/21 11:26 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV13-10 (2107188-23) Soil Sampled: 07/13/21 11:31 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 95.9 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 27.2 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 44.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 80.3 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 44.4 % 19-122 " " " "
Surrogate: Terphenyl-d14 110 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV13-10 (2107188-23) Soil Sampled: 07/13/21 11:31 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV13-15 (2107188-24) Soil Sampled: 07/13/21 11:38 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 92.9 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 35.1 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 36.8 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 50.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 42.9 % 19-122 " " " "
Surrogate: Terphenyl-d14 136 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV13-15 (2107188-24) Soil Sampled: 07/13/21 11:38 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV14-5 (2107188-25) Soil Sampled: 07/13/21 12:49 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 95.9 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 57.3 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 41.2 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 74.1 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 34.0 % 19-122 " " " "
Surrogate: Terphenyl-d14 88.9 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV14-5 (2107188-25) Soil Sampled: 07/13/21 12:49 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV14-10 (2107188-26) Soil Sampled: 07/13/21 12:54 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 104 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 50.1 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 59.2 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 90.4 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 42.9 % 19-122 " " " "
Surrogate: Terphenyl-d14 60.8 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV14-10 (2107188-26) Soil Sampled: 07/13/21 12:54 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV14-15 (2107188-27) Soil Sampled: 07/13/21 13:01 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 105 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 86.3 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 55.4 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 89.5 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 50.5 % 19-122 " " " "
Surrogate: Terphenyl-d14 105 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV14-15 (2107188-27) Soil Sampled: 07/13/21 13:01 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV15-5 (2107188-28) Soil Sampled: 07/13/21 13:19 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 96.8 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 64.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 87.3 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 87.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 55.8 % 19-122 " " " "
Surrogate: Terphenyl-d14 131 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV15-5 (2107188-28) Soil Sampled: 07/13/21 13:19 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV15-10 (2107188-29) Soil Sampled: 07/13/21 13:23 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 102 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 90.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 41.6 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 45.2 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 46.7 % 19-122 " " " "
Surrogate: Terphenyl-d14 66.1 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV15-10 (2107188-29) Soil Sampled: 07/13/21 13:23 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV15-15 (2107188-30) Soil Sampled: 07/13/21 13:27 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 99.9 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 77.6 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 32.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 40.6 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 47.3 % 19-122 " " " "
Surrogate: Terphenyl-d14 132 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV15-15 (2107188-30) Soil Sampled: 07/13/21 13:27 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV16-5 (2107188-31) Soil Sampled: 07/13/21 13:54 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 94.6 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 62.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 50.3 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 50.6 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 65.8 % 19-122 " " " "
Surrogate: Terphenyl-d14 115 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV16-5 (2107188-31) Soil Sampled: 07/13/21 13:54 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV16-10 (2107188-32) Soil Sampled: 07/13/21 13:57 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 76.5 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 52.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 50.1 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 60.6 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 70.6 % 19-122 " " " "
Surrogate: Terphenyl-d14 101 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV16-10 (2107188-32) Soil Sampled: 07/13/21 13:57 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV16-15 (2107188-33) Soil Sampled: 07/13/21 14:00 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 104 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 65.4 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 58.6 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 50.7 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 32.6 % 19-122 " " " "
Surrogate: Terphenyl-d14 43.7 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV16-15 (2107188-33) Soil Sampled: 07/13/21 14:00 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV17-5 (2107188-34) Soil Sampled: 07/13/21 14:44 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 99.3 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 65.9 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 65.8 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 56.3 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 75.3 % 19-122 " " " "
Surrogate: Terphenyl-d14 110 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV17-5 (2107188-34) Soil Sampled: 07/13/21 14:44 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV17-10 (2107188-35) Soil Sampled: 07/13/21 14:48 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 98.1 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 55.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 46.4 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 45.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 86.1 % 19-122 " " " "
Surrogate: Terphenyl-d14 99.1 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV17-10 (2107188-35) Soil Sampled: 07/13/21 14:48 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV17-15 (2107188-36) Soil Sampled: 07/13/21 14:53 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 102 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 31.3 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 51.3 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 41.5 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 61.9 % 19-122 " " " "
Surrogate: Terphenyl-d14 92.1 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV17-15 (2107188-36) Soil Sampled: 07/13/21 14:53 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV18-5 (2107188-37) Soil Sampled: 07/13/21 15:19 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 98.7 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 24.4 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 63.4 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 60.5 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 67.6 % 19-122 " " " "
Surrogate: Terphenyl-d14 66.6 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV18-5 (2107188-37) Soil Sampled: 07/13/21 15:19 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV18-10 (2107188-38) Soil Sampled: 07/13/21 15:25 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 115 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 76.7 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 56.5 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 77.9 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 102 % 19-122 " " " "
Surrogate: Terphenyl-d14 64.9 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene 0.82 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol 0.92 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV18-10 (2107188-38) Soil Sampled: 07/13/21 15:25 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene 2.2 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene 0.44 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene 0.77 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV18-15 (2107188-39) Soil Sampled: 07/13/21 15:29 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 81.6 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 52.1 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 33.1 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 40.9 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 58.5 % 19-122 " " " "
Surrogate: Terphenyl-d14 129 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV18-15 (2107188-39) Soil Sampled: 07/13/21 15:29 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV19-5 (2107188-40) Soil Sampled: 07/13/21 15:49 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 57.3 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 100 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 78.4 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 53.3 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 60.7 % 19-122 " " " "
Surrogate: Terphenyl-d14 90.7 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene 2.1 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol 0.40 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV19-5 (2107188-40) Soil Sampled: 07/13/21 15:49 Received: 07/13/21 17:07 2,4-Dinitrotoluene 1.1 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene 1.2 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene 1.1 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene 12 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene 5.2 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline 0.85 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine 0.91 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene 2.0 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene 0.87 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV19-10 (2107188-41) Soil Sampled: 07/13/21 15:54 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 109 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 83.5 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 70.9 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 84.0 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 94.5 % 19-122 " " " "
Surrogate: Terphenyl-d14 117 % 18-137 " " " "
Acenaphthene ND 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene ND 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene ND 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene ND 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV19-10 (2107188-41) Soil Sampled: 07/13/21 15:54 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene ND 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene ND 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene ND 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene ND 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV19-15 (2107188-42) Soil Sampled: 07/13/21 15:59 Received: 07/13/21 17:07 Surrogate: 2-Fluorophenol 61.7 % 25-121 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C Surrogate: Phenol-d6 110 % 24-113 " " " "
Surrogate: Nitrobenzene-d5 87.4 % 23-120 " " " "
Surrogate: 2-Fluorobiphenyl 108 % 30-115 " " " "
Surrogate: 2,4,6-Tribromophenol 103 % 19-122 " " " "
Surrogate: Terphenyl-d14 90.2 % 18-137 " " " "
Acenaphthene 1.6 0.33 " " " " " "
Acenaphthylene ND 0.33 " " " " " "
Anthracene 1.1 0.33 " " " " " "
Benzidine ND 0.33 " " " " " "
Benzo (a) anthracene 1.3 0.33 " " " " " "
Benzo (b) fluoranthene ND 0.33 " " " " " "
Benzo (k) fluoranthene ND 0.33 " " " " " "
Benzo (a) pyrene ND 0.33 " " " " " "
Benzo (g,h,i) perylene ND 0.33 " " " " " "
Benzyl alcohol ND 0.33 " " " " " "
Bis(2-chloroethyl)ether ND 0.33 " " " " " "
Bis(2-chloroethoxy)methane ND 0.33 " " " " " "
Bis(2-ethylhexyl)phthalate ND 0.33 " " " " " "
Bis(2-chloroisopropyl)ether ND 0.33 " " " " " "
4-Bromophenyl phenyl ether ND 0.33 " " " " " "
Butyl benzyl phthalate ND 0.33 " " " " " "
4-Chloroaniline ND 0.33 " " " " " "
2-Chlorophenol ND 0.33 " " " " " "
4-Chloro-3-methylphenol ND 0.33 " " " " " "
2-Chloronaphthalene ND 0.33 " " " " " "
4-Chlorophenyl phenyl ether ND 0.33 " " " " " "
Chrysene 1.5 0.33 " " " " " "
Dibenz (a,h) anthracene ND 0.33 " " " " " "
Dibenzofuran ND 0.33 " " " " " "
1,3-Dichlorobenzene ND 0.33 " " " " " "
1,2-Dichlorobenzene ND 0.33 " " " " " "
1,4-Dichlorobenzene ND 0.33 " " " " " "
3,3´-Dichlorobenzidine ND 0.33 " " " " " "
2,4-Dichlorophenol ND 0.33 " " " " " "
Diethyl phthalate ND 0.33 " " " " " "
2,4-Dimethylphenol ND 0.33 " " " " " "
Dimethyl phthalate ND 0.33 " " " " " "
Di-n-butyl phthalate ND 0.33 " " " " " "
2,4-Dinitrophenol ND 0.33 " " " " " "
4,6-Dinitro-2-methylphenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Semivolatile Organic Compounds by EPA Method 8270C
Sierra Analytical Labs, Inc.

Analyte Result Limit
Reporting
Units Dilution Batch Prepared Analyzed Method Notes
SV19-15 (2107188-42) Soil Sampled: 07/13/21 15:59 Received: 07/13/21 17:07 2,4-Dinitrotoluene ND 0.33 mg/kg 1 B1G1916 07/19/21 07/20/21 10:43 EPA 8270C 2,6-Dinitrotoluene ND 0.33 " " " " " "
Di-n-octyl phthalate ND 0.33 " " " " " "
1,2-Diphenylhydrazine ND 0.33 " " " " " "
Fluoranthene ND 0.33 " " " " " "
Fluorene 3.0 0.33 " " " " " "
Hexachlorobenzene ND 0.33 " " " " " "
Hexachlorobutadiene ND 0.33 " " " " " "
Hexachlorocyclopentadiene ND 0.33 " " " " " "
Hexachloroethane ND 0.33 " " " " " "
Indeno (1,2,3-cd) pyrene ND 0.33 " " " " " "
Isophorone ND 0.33 " " " " " "
2-Methylnaphthalene ND 0.33 " " " " " "
2-Methylphenol ND 0.33 " " " " " "
4-Methylphenol ND 0.33 " " " " " "
Naphthalene 4.0 0.33 " " " " " "
2-Nitroaniline ND 0.33 " " " " " "
3-Nitroaniline ND 0.33 " " " " " "
4-Nitroaniline ND 0.33 " " " " " "
Nitrobenzene ND 0.33 " " " " " "
2-Nitrophenol ND 0.33 " " " " " "
4-Nitrophenol ND 0.33 " " " " " "
N-Nitrosodimethylamine ND 0.33 " " " " " "
Diphenylamine ND 0.33 " " " " " "
N-Nitrosodi-n-propylamine ND 0.33 " " " " " "
Pentachlorophenol ND 0.33 " " " " " "
Phenanthrene 9.7 0.33 " " " " " "
Phenol ND 0.33 " " " " " "
Pyrene 8.5 0.33 " " " " " "
1,2,4-Trichlorobenzene ND 0.33 " " " " " "
2,4,5-Trichlorophenol ND 0.33 " " " " " "
2,4,6-Trichlorophenol ND 0.33 " " " " " "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Analyte Limit Notes
Metals by EPA 6000/7000 Series Methods - Quality Control Sierra Analytical Labs, Inc.

Batch B1G1411 - EPA 3050B
Blank (B1G1411-BLK1) Prepared: 07/14/21 Analyzed: 07/19/21 Silver ND 2.0 mg/kg
Cadmium ND 2.5 "
Barium ND 6.0 "
Nickel ND 3.0 "
Lead ND 7.1 "
Vanadium ND 5.1 "
Arsenic ND 5.5 "
Cobalt ND 3.3 "
Thallium ND 17 "
Copper ND 5.0 "
Selenium ND 6.9 "
Molybdenum ND 5.2 "
Antimony ND 8.0 "
Beryllium ND 2.2 "
Zinc ND 7.0 "
Chromium ND 2.3 "
LCS (B1G1411-BS1) Prepared: 07/14/21 Analyzed: 07/19/21 Nickel 104 3.0 mg/kg 100 104 80-120
Molybdenum 103 5.2 " 100 103 80-120
Arsenic 98.8 5.5 " 100 98.8 78-122
Beryllium 97.9 2.2 " 100 97.9 80-120
Chromium 102 2.3 " 100 102 80-120
Barium 105 6.0 " 100 105 80-120
Cadmium 102 2.5 " 100 102 80-120
Silver 98.5 2.0 " 100 98.5 60-140
Vanadium 98.2 5.1 " 100 98.2 80-120
Antimony 112 8.0 " 100 112 75-125
Copper 113 5.0 " 100 113 78-122
Zinc 101 7.0 " 100 101 80-120
Selenium 97.3 6.9 " 100 97.3 76-124
Lead 99.3 7.1 " 100 99.3 80-120
Cobalt 107 3.3 " 100 107 80-120
Thallium 104 17 " 100 104 80-120

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Analyte Limit Notes
Metals by EPA 6000/7000 Series Methods - Quality Control Sierra Analytical Labs, Inc.

Batch B1G1411 - EPA 3050B
LCS Dup (B1G1411-BSD1) Prepared: 07/14/21 Analyzed: 07/19/21 Zinc 100 7.0 mg/kg 100 100 80-120 0.670 20
Chromium 101 2.3 " 100 101 80-120 1.01 20
Selenium 95.4 6.9 " 100 95.4 76-124 1.97 20
Thallium 103 17 " 100 103 80-120 0.897 20
Vanadium 96.9 5.1 " 100 96.9 80-120 1.33 20
Cobalt 106 3.3 " 100 106 80-120 0.962 20
Lead 98.2 7.1 " 100 98.2 80-120 1.11 20
Silver 93.1 2.0 " 100 93.1 60-140 5.64 40
Antimony 109 8.0 " 100 109 75-125 2.95 20
Arsenic 96.4 5.5 " 100 96.4 78-122 2.56 20
Molybdenum 100 5.2 " 100 100 80-120 2.66 20
Copper 110 5.0 " 100 110 78-122 2.58 20
Barium 104 6.0 " 100 104 80-120 0.887 20
Nickel 104 3.0 " 100 104 80-120 0.817 20
Cadmium 101 2.5 " 100 101 80-120 1.06 20
Beryllium 98.0 2.2 " 100 98.0 80-120 0.0255 20
Matrix Spike (B1G1411-MS1) Source: 2107188-01 Prepared: 07/14/21 Analyzed: 07/19/21 Selenium 96.5 6.9 mg/kg 98.8 ND 97.7 70-130
Molybdenum 98.2 5.2 " 98.8 0.661 98.8 70-130
Cobalt 107 3.3 " 98.8 7.64 101 70-130
Thallium 98.5 17 " 98.8 ND 99.7 70-130
Lead 101 7.1 " 98.8 4.55 97.8 70-130
Silver 108 2.0 " 98.8 0.220 109 60-140
Barium 238 6.0 " 98.8 82.6 158 70-130 QM-07
Beryllium 94.0 2.2 " 98.8 ND 95.1 70-130
Nickel 106 3.0 " 98.8 8.55 98.6 70-130
Vanadium 118 5.1 " 98.8 24.0 94.8 70-130
Arsenic 98.8 5.5 " 98.8 ND 100 70-130
Zinc 143 7.0 " 98.8 28.5 116 70-130
Copper 115 5.0 " 98.8 13.6 103 70-130
Chromium 110 2.3 " 98.8 13.7 97.2 70-130
Cadmium 98.0 2.5 " 98.8 ND 99.2 70-130
Antimony 91.6 8.0 " 98.8 ND 92.7 60-140

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Analyte Limit Notes
Metals by EPA 6000/7000 Series Methods - Quality Control Sierra Analytical Labs, Inc.

Batch B1G1411 - EPA 3050B
Matrix Spike Dup (B1G1411-MSD1) Source: 2107188-01 Prepared: 07/14/21 Analyzed: 07/19/21 Antimony 92.1 8.0 mg/kg 98.4 ND 93.6 60-140 0.599 20
Cobalt 108 3.3 " 98.4 7.64 102 70-130 0.817 20
Arsenic 99.3 5.5 " 98.4 ND 101 70-130 0.452 20
Silver 109 2.0 " 98.4 0.220 110 60-140 0.790 40
Beryllium 94.4 2.2 " 98.4 ND 95.9 70-130 0.469 20
Chromium 110 2.3 " 98.4 13.7 97.9 70-130 0.279 20
Molybdenum 93.1 5.2 " 98.4 0.661 93.9 70-130 5.42 20
Thallium 98.8 17 " 98.4 ND 100 70-130 0.255 20
Selenium 96.6 6.9 " 98.4 ND 98.2 70-130 0.116 20
Cadmium 98.8 2.5 " 98.4 ND 100 70-130 0.758 20
Vanadium 118 5.1 " 98.4 24.0 95.5 70-130 0.296 20
Zinc 127 7.0 " 98.4 28.5 99.9 70-130 12.1 20
Lead 102 7.1 " 98.4 4.55 98.7 70-130 0.480 30
Nickel 106 3.0 " 98.4 8.55 99.2 70-130 0.187 20
Copper 116 5.0 " 98.4 13.6 104 70-130 0.758 30
Barium 240 6.0 " 98.4 82.6 160 70-130 0.493 20 QM-07
Batch B1G1412 - EPA 3050B
Blank (B1G1412-BLK1) Prepared: 07/14/21 Analyzed: 07/19/21 Zinc ND 7.0 mg/kg
Thallium ND 17 "
Selenium ND 6.9 "
Lead ND 7.1 "
Copper ND 5.0 "
Antimony ND 8.0 "
Nickel ND 3.0 "
Molybdenum ND 5.2 "
Barium ND 6.0 "
Chromium ND 2.3 "
Arsenic ND 5.5 "
Vanadium ND 5.1 "
Cobalt ND 3.3 "
Silver ND 2.0 "
Beryllium ND 2.2 "
Cadmium ND 2.5 "

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Analyte Limit Notes
Metals by EPA 6000/7000 Series Methods - Quality Control Sierra Analytical Labs, Inc.

Batch B1G1412 - EPA 3050B
LCS (B1G1412-BS1) Prepared: 07/14/21 Analyzed: 07/19/21 Thallium 104 17 mg/kg 100 104 80-120
Cadmium 104 2.5 " 100 104 80-120
Beryllium 94.1 2.2 " 100 94.1 80-120
Lead 95.0 7.1 " 100 95.0 80-120
Vanadium 91.6 5.1 " 100 91.6 80-120
Copper 100 5.0 " 100 100 78-122
Silver 101 2.0 " 100 101 60-140
Antimony 102 8.0 " 100 102 75-125
Nickel 98.4 3.0 " 100 98.4 80-120
Cobalt 107 3.3 " 100 107 80-120
Zinc 100 7.0 " 100 100 80-120
Molybdenum 99.8 5.2 " 100 99.8 80-120
Barium 106 6.0 " 100 106 80-120
Chromium 98.3 2.3 " 100 98.3 80-120
Arsenic 95.4 5.5 " 100 95.4 78-122
Selenium 93.8 6.9 " 100 93.8 76-124
LCS Dup (B1G1412-BSD1) Prepared: 07/14/21 Analyzed: 07/19/21 Beryllium 88.7 2.2 mg/kg 100 88.7 80-120 5.85 20
Copper 104 5.0 " 100 104 78-122 3.97 20
Lead 90.2 7.1 " 100 90.2 80-120 5.18 20
Antimony 96.2 8.0 " 100 96.2 75-125 5.41 20
Chromium 92.4 2.3 " 100 92.4 80-120 6.16 20
Silver 92.1 2.0 " 100 92.1 60-140 8.97 40
Molybdenum 94.6 5.2 " 100 94.6 80-120 5.30 20
Barium 99.2 6.0 " 100 99.2 80-120 6.23 20
Nickel 93.0 3.0 " 100 93.0 80-120 5.67 20
Cobalt 100 3.3 " 100 100 80-120 6.16 20
Cadmium 97.6 2.5 " 100 97.6 80-120 6.06 20
Selenium 88.5 6.9 " 100 88.5 76-124 5.79 20
Arsenic 90.0 5.5 " 100 90.0 78-122 5.72 20
Thallium 98.6 17 " 100 98.6 80-120 5.26 20
Zinc 95.2 7.0 " 100 95.2 80-120 5.29 20
Vanadium 86.4 5.1 " 100 86.4 80-120 5.87 20

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Analyte Limit Notes
Metals by EPA 6000/7000 Series Methods - Quality Control Sierra Analytical Labs, Inc.

Batch B1G1412 - EPA 3050B
Matrix Spike (B1G1412-MS1) Source: 2107188-21 Prepared: 07/14/21 Analyzed: 07/19/21 Antimony 87.8 8.0 mg/kg 97.5 ND 90.1 60-140
Chromium 100 2.3 " 97.5 7.00 95.6 70-130
Lead 91.1 7.1 " 97.5 1.24 92.2 70-130
Nickel 96.1 3.0 " 97.5 4.45 94.0 70-130
Beryllium 90.5 2.2 " 97.5 ND 92.8 70-130
Copper 96.9 5.0 " 97.5 4.43 94.9 70-130
Silver 91.4 2.0 " 97.5 ND 93.8 60-140
Barium 140 6.0 " 97.5 32.0 110 70-130
Cobalt 103 3.3 " 97.5 3.34 102 70-130
Arsenic 93.7 5.5 " 97.5 ND 96.1 70-130
Selenium 91.6 6.9 " 97.5 ND 94.0 70-130
Molybdenum 91.7 5.2 " 97.5 ND 94.1 70-130
Vanadium 99.3 5.1 " 97.5 9.20 92.4 70-130
Thallium 96.4 17 " 97.5 ND 98.9 70-130
Zinc 113 7.0 " 97.5 15.9 99.4 70-130
Cadmium 99.5 2.5 " 97.5 ND 102 70-130
Matrix Spike Dup (B1G1412-MSD1) Source: 2107188-21 Prepared: 07/14/21 Analyzed: 07/19/21 Cadmium 96.2 2.5 mg/kg 97.0 ND 99.2 70-130 3.32 20
Copper 111 5.0 " 97.0 4.43 110 70-130 14.0 30
Silver 91.1 2.0 " 97.0 ND 94.0 60-140 0.326 40
Arsenic 91.1 5.5 " 97.0 ND 93.9 70-130 2.80 20
Antimony 85.4 8.0 " 97.0 ND 88.0 60-140 2.84 20
Cobalt 101 3.3 " 97.0 3.34 100 70-130 2.40 20
Lead 88.7 7.1 " 97.0 1.24 90.2 70-130 2.65 30
Beryllium 88.7 2.2 " 97.0 ND 91.4 70-130 2.01 20
Molybdenum 89.6 5.2 " 97.0 ND 92.4 70-130 2.28 20
Thallium 93.5 17 " 97.0 ND 96.4 70-130 2.99 20
Selenium 89.1 6.9 " 97.0 ND 91.8 70-130 2.85 20
Vanadium 97.1 5.1 " 97.0 9.20 90.6 70-130 2.24 20
Barium 136 6.0 " 97.0 32.0 108 70-130 2.35 20
Chromium 102 2.3 " 97.0 7.00 98.2 70-130 2.04 20
Nickel 93.9 3.0 " 97.0 4.45 92.3 70-130 2.23 20
Zinc 111 7.0 " 97.0 15.9 97.7 70-130 1.94 20

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Analyte Limit Notes
Metals by EPA 6000/7000 Series Methods - Quality Control Sierra Analytical Labs, Inc.

Batch B1G1413 - EPA 3050B
Blank (B1G1413-BLK1) Prepared: 07/14/21 Analyzed: 07/19/21 Selenium ND 6.9 mg/kg
Vanadium ND 5.1 "
Copper ND 5.0 "
Antimony ND 8.0 "
Silver ND 2.0 "
Lead ND 7.1 "
Molybdenum ND 5.2 "
Thallium ND 17 "
Cadmium ND 2.5 "
Arsenic ND 5.5 "
Cobalt ND 3.3 "
Nickel ND 3.0 "
Beryllium ND 2.2 "
Chromium ND 2.3 "
Barium ND 6.0 "
Zinc ND 7.0 "
LCS (B1G1413-BS1) Prepared: 07/14/21 Analyzed: 07/19/21 Chromium 99.8 2.3 mg/kg 100 99.8 80-120
Zinc 109 7.0 " 100 109 80-120
Barium 108 6.0 " 100 108 80-120
Vanadium 90.2 5.1 " 100 90.2 80-120
Beryllium 93.3 2.2 " 100 93.3 80-120
Nickel 101 3.0 " 100 101 80-120
Cadmium 106 2.5 " 100 106 80-120
Antimony 104 8.0 " 100 104 75-125
Selenium 102 6.9 " 100 102 76-124
Silver 107 2.0 " 100 107 60-140
Copper 96.1 5.0 " 100 96.1 78-122
Lead 102 7.1 " 100 102 80-120
Arsenic 103 5.5 " 100 103 78-122
Molybdenum 96.6 5.2 " 100 96.6 80-120
Thallium 108 17 " 100 108 80-120
Cobalt 111 3.3 " 100 111 80-120

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. 26052 MERIT CIRCLE SUITE 104, LAGUNA HILLS, CALIFORNIA 92653 TELEPHONE: (949) 348-9389 FAX: (949) 348-9115
E-MAIL: SIERRALABS @ SIERRALABS.NET
Project:

Project Number:

Project Manager:

Reported:

Mearns Consulting LLC
738 Ashland Avenue [none]
Santa Monica CA, 90405 Susan Mearns 07/22/21 13:51
Town Center Northwest
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Analyte Limit Notes
Metals by EPA 6000/7000 Series Methods - Quality Control Sierra Analytical Labs, Inc.

Batch B1G1413 - EPA 3050B
LCS Dup (B1G1413-BSD1) Prepared: 07/14/21 Analyzed: 07/19/21 Silver 108 2.0 mg/kg 100 108 60-140 1.37 40
Molybdenum 101 5.2 " 100 101 80-120 4.23 20
Nickel 98.9 3.0 " 100 98.9 80-120 1.93 20
Barium 107 6.0 " 100 107 80-120 1.32 20
Chromium 98.9 2.3 " 100 98.9 80-120 0.931 20
Lead 99.9 7.1 " 100 99.9 80-120 2.35 20
Thallium 107 17 " 100 107 80-120 0.535 20
Zinc 109 7.0 " 100 109 80-120 0.459 20
Cadmium 104 2.5 " 100 104 80-120 2.29 20
Arsenic 102 5.5 " 100 102 78-122 1.78 20
Antimony 101 8.0 " 100 101 75-125 2.83 20
Selenium 100 6.9 " 100 100 76-124 1.88 20
Vanadium 88.6 5.1 " 100 88.6 80-120 1.76 20
Beryllium 92.1 2.2 " 100 92.1 80-120 1.27 20
Cobalt 109 3.3 " 100 109 80-120 1.30 20
Copper 95.7 5.0 " 100 95.7 78-122 0.417 20
Matrix Spike (B1G1413-MS1) Source: 2107188-41 Prepared: 07/14/21 Analyzed: 07/19/21 Barium 185 6.0 mg/kg 99.2 65.7 120 70-130
Nickel 101 3.0 " 99.2 11.6 89.7 70-130
Zinc 137 7.0 " 99.2 34.9 103 70-130
Vanadium 110 5.1 " 99.2 22.6 88.4 70-130
Thallium 90.3 17 " 99.2 ND 91.0 70-130
Selenium 90.7 6.9 " 99.2 ND 91.5 70-130
Silver 108 2.0 " 99.2 ND 109 60-140
Lead 89.6 7.1 " 99.2 4.09 86.2 70-130
Molybdenum 83.6 5.2 " 99.2 0.725 83.5 70-130
Copper 97.7 5.0 " 99.2 12.2 86.2 70-130
Chromium 107 2.3 " 99.2 17.0 90.9 70-130
Cobalt 101 3.3 " 99.2 7.33 94.8 70-130
Beryllium 83.1 2.2 " 99.2 ND 83.8 70-130
Arsenic 93.8 5.5 " 99.2 ND 94.6 70-130
Antimony 73.9 8.0 " 99.2 ND 74.4 60-140
Cadmium 98.4 2.5 " 99.2 ND 99.2 70-130