Riverside City Council
September 17, 2024

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 26 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-05 (Soil)
B45-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:13
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 06:28 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:28 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:28 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:28 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 103% 75-125 06/23/23 09:00 06/24/23 06:28 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 108% 75-125 06/23/23 09:00 06/24/23 06:28 B3F0296 DK 5035A Surrogate: Toluene-d8 102% 75-125 06/23/23 09:00 06/24/23 06:28 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 27 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-06 (Soil)
B45-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:21
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 28 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-06 (Soil)
B45-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:21
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 29 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-06 (Soil)
B45-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:21
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 109% 75-125 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A Surrogate: Toluene-d8 100% 75-125 06/23/23 09:00 06/24/23 07:00 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 30 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-08 (Soil)
B40-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:36
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 31 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-08 (Soil)
B40-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:36
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 32 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-08 (Soil)
B40-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:36
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 108% 75-125 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A Surrogate: Toluene-d8 101% 75-125 06/23/23 09:00 06/24/23 07:32 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 33 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-09 (Soil)
B40-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:39
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 34 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-09 (Soil)
B40-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:39
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 35 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-09 (Soil)
B40-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 9:39
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 107% 75-125 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A Surrogate: Toluene-d8 100% 75-125 06/23/23 09:00 06/24/23 08:04 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 36 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-11 (Soil)
B41-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 37 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-11 (Soil)
B41-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 38 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-11 (Soil)
B41-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 109% 75-125 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A Surrogate: Toluene-d8 100% 75-125 06/23/23 09:00 06/24/23 08:36 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 39 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-12 (Soil)
B41-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:04
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 40 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-12 (Soil)
B41-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:04
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 41 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-12 (Soil)
B41-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:04
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-125 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 107% 75-125 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A Surrogate: Toluene-d8 100% 75-125 06/23/23 09:00 06/24/23 09:09 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 42 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-14 (Soil)
B37-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:26
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Benzene 1.38 J 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 43 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-14 (Soil)
B37-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:26
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 44 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-14 (Soil)
B37-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:26
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 92.9% 75-125 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A Surrogate: Toluene-d8 95.7% 75-125 06/23/23 09:00 06/24/23 09:41 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 45 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-15 (Soil)
B37-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:35
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Benzene 1.77 J 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 46 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-15 (Soil)
B37-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:35
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 47 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-15 (Soil)
B37-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:35
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 108% 75-125 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A Surrogate: Toluene-d8 100% 75-125 06/23/23 09:00 06/24/23 10:14 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 48 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-17 (Soil)
B38-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:46
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 49 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-17 (Soil)
B38-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:46
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 50 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-17 (Soil)
B38-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:46
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 103% 75-125 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 111% 75-125 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A Surrogate: Toluene-d8 99.4% 75-125 06/23/23 09:00 06/24/23 10:46 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 51 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-18 (Soil)
B38-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:48
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 52 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-18 (Soil)
B38-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:48
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 53 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-18 (Soil)
B38-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 10:48
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-125 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 111% 75-125 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A Surrogate: Toluene-d8 100% 75-125 06/23/23 09:00 06/24/23 11:18 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 54 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-20 (Soil)
B48-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 11:04
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 55 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-20 (Soil)
B48-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 11:04
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 56 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-20 (Soil)
B48-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 11:04
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 104% 75-125 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 113% 75-125 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A Surrogate: Toluene-d8 101% 75-125 06/23/23 09:00 06/24/23 11:50 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 57 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-21 (Soil)
B48-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 11:11
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Benzene 2.58 J 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 58 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-21 (Soil)
B48-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 11:11
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Toluene (Methyl benzene) 1.70 J 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 59 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-21 (Soil)
B48-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 11:11
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 105% 75-125 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A Surrogate: Toluene-d8 99.9% 75-125 06/23/23 09:00 06/24/23 06:09 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 60 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-23 (Soil)
B34-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 12:59
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 61 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-23 (Soil)
B34-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 12:59
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 62 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-23 (Soil)
B34-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 12:59
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 101% 75-125 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A Surrogate: Toluene-d8 99.8% 75-125 06/23/23 09:00 06/24/23 06:48 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 63 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-24 (Soil)
B34-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:08
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 64 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-24 (Soil)
B34-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:08
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 65 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-24 (Soil)
B34-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:08
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A Surrogate: Toluene-d8 99.6% 75-125 06/23/23 09:00 06/24/23 07:27 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 66 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-25 (Soil)
B27-1
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:15
TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/27/23 03:34 06/27/23 11:46 B3F0356 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 91.6% 75-120 06/27/23 03:34 06/27/23 11:46 B3F0356 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 18:48 B3F0359 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 18:48 B3F0359 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 18:48 B3F0359 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 83.9% 75-125 06/27/23 08:43 06/27/23 18:48 B3F0359 TTN 3550B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 67 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-26 (Soil)
B27-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:21
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 68 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-26 (Soil)
B27-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:21
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 69 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-26 (Soil)
B27-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:21
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Surrogate: Dibromofluoromethane 114% 75-125 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A Surrogate: Toluene-d8 99.5% 75-125 06/23/23 09:00 06/24/23 12:22 B3F0296 DK 5035A TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/22/23 11:14 06/22/23 11:14 B3F0280 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 110% 75-120 06/22/23 11:14 06/22/23 11:14 B3F0280 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 19:27 B3F0359 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 19:27 B3F0359 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 19:27 B3F0359 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 88.5% 75-125 06/27/23 08:43 06/27/23 19:27 B3F0359 TTN 3550B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 70 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-27 (Soil)
B27-10
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:31
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 71 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-27 (Soil)
B27-10
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:31
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 72 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-27 (Soil)
B27-10
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:31
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.4% 75-125 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 101% 75-125 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A Surrogate: Toluene-d8 99.5% 75-125 06/23/23 09:00 06/24/23 05:29 B3F0295 DA 5035A TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/22/23 11:14 06/22/23 11:55 B3F0280 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 111% 75-120 06/22/23 11:14 06/22/23 11:55 B3F0280 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 20:05 B3F0359 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 20:05 B3F0359 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 20:05 B3F0359 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 88.3% 75-125 06/27/23 08:43 06/27/23 20:05 B3F0359 TTN 3550B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 73 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-28 (Soil)
B27-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:44
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 74 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-28 (Soil)
B27-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:44
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 75 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-28 (Soil)
B27-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:44
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 103% 75-125 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A Surrogate: Toluene-d8 99.4% 75-125 06/23/23 09:00 06/24/23 08:06 B3F0295 DA 5035A TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/22/23 11:14 06/22/23 12:36 B3F0280 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 105% 75-120 06/22/23 11:14 06/22/23 12:36 B3F0280 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 20:43 B3F0359 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 20:43 B3F0359 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 20:43 B3F0359 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 84.7% 75-125 06/27/23 08:43 06/27/23 20:43 B3F0359 TTN 3550B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 76 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-29 (Soil)
B27-20
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:53
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 77 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-29 (Soil)
B27-20
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:53
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 78 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-29 (Soil)
B27-20
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:53
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 101% 75-125 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A Surrogate: Toluene-d8 99.5% 75-125 06/23/23 09:00 06/24/23 08:45 B3F0295 DA 5035A TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/22/23 11:14 06/22/23 13:16 B3F0280 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 116% 75-120 06/22/23 11:14 06/22/23 13:16 B3F0280 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 21:20 B3F0359 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 21:20 B3F0359 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 21:20 B3F0359 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 82.1% 75-125 06/27/23 08:43 06/27/23 21:20 B3F0359 TTN 3550B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 79 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-30 (Soil)
B99-10
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:32
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 80 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-30 (Soil)
B99-10
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:32
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 81 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-30 (Soil)
B99-10
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 13:32
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 105% 75-125 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A Surrogate: Toluene-d8 98.5% 75-125 06/23/23 09:00 06/24/23 09:24 B3F0295 DA 5035A TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/22/23 11:14 06/22/23 13:57 B3F0280 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-120 06/22/23 11:14 06/22/23 13:57 B3F0280 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 21:58 B3F0359 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 21:58 B3F0359 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/27/23 08:43 06/27/23 21:58 B3F0359 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 76.0% 75-125 06/27/23 08:43 06/27/23 21:58 B3F0359 TTN 3550B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 82 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-32 (Soil)
B13-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:12
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 83 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-32 (Soil)
B13-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:12
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 84 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-32 (Soil)
B13-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:12
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 105% 75-125 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A Surrogate: Toluene-d8 98.4% 75-125 06/23/23 09:00 06/24/23 10:03 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 85 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-33 (Soil)
B13-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:16
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Benzene 3.12 J 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 86 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-33 (Soil)
B13-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:16
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Toluene (Methyl benzene) 1.87 J 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 87 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-33 (Soil)
B13-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:16
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.6% 75-125 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 104% 75-125 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A Surrogate: Toluene-d8 97.2% 75-125 06/23/23 09:00 06/24/23 10:42 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 88 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-35 (Soil)
B12-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:28
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Benzene 1.40 J 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 89 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-35 (Soil)
B12-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:28
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 90 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-35 (Soil)
B12-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:28
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-125 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A Surrogate: Toluene-d8 98.5% 75-125 06/23/23 09:00 06/24/23 11:21 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 91 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-36 (Soil)
B12-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:34
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 92 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-36 (Soil)
B12-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:34
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 93 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-36 (Soil)
B12-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 14:34
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Surrogate: Dibromofluoromethane 106% 75-125 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A Surrogate: Toluene-d8 97.9% 75-125 06/23/23 09:00 06/24/23 12:00 B3F0295 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 94 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-37 (Aqueous)
GW-20
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 15:40
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Benzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B sec-Butylbenzene 1.20 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 95 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-37 (Aqueous)
GW-20
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 15:40
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Ethylbenzene 28.8 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Isopropylbenzene 3.08 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Naphthalene 12.7 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B n-Propylbenzene 11.0 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Styrene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Toluene (Methyl benzene) 9.52 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Trichloroethene 3.03 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,2,4-Trimethylbenzene 61.9 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B 1,3,5-Trimethylbenzene 18.9 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B o-Xylene 57.9 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B m,p-Xylenes 128 1 1.00 2.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 96 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0196-37 (Aqueous)
GW-20
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 15:40
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-125 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Surrogate: Dibromofluoromethane 104% 75-125 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B Surrogate: Toluene-d8 99.3% 75-125 06/23/23 10:00 06/23/23 19:43 B3F0294 DA 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light
HC. (C4-C12)

0.621 1 0.00500 0.0100 mg/L 06/22/23 12:43 06/22/23 14:53 B3F0281 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 114% 75-120 06/22/23 12:43 06/22/23 14:53 B3F0281 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) 0.0859 J 1 0.0123 0.100 mg/L 06/23/23 17:59 06/26/23 18:51 B3F0337 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/23/23 17:59 06/26/23 18:51 B3F0337 TTN 3510C TPH Total as Diesel and
Heavy HC (C13-C40)

0.0859 J 1 0.0123 0.100 mg/L 06/23/23 17:59 06/26/23 18:51 B3F0337 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 84.8% 60-125 06/23/23 17:59 06/26/23 18:51 B3F0337 TTN 3510C

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 97 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0294 - 5030B Prepared: 06/03/2023 10:00
Method Blank (B3F0294-BLK1) Analyzed: 06/23/2023 14:28
Acetone ND 5.00 10.0 ug/L
Benzene ND 0.500 1.00 ug/L
Bromobenzene (Phenyl bromide) ND 0.500 1.00 ug/L
Bromochloromethane ND 0.500 1.00 ug/L
Bromodichloromethane ND 0.500 1.00 ug/L
Bromoform (Tribromomethane) ND 2.50 5.00 ug/L
Bromomethane (Methyl bromide) ND 1.50 3.00 ug/L
2-Butanone (MEK) ND 5.00 10.0 ug/L
n-Butylbenzene ND 0.500 1.00 ug/L
sec-Butylbenzene ND 0.500 1.00 ug/L
tert-Butylbenzene ND 0.500 1.00 ug/L
Carbon Disulfide ND 0.500 1.00 ug/L
Carbon tetrachloride ND 0.500 1.00 ug/L
Chlorobenzene ND 0.500 1.00 ug/L
Chloroethane ND 1.50 3.00 ug/L
2-Chloroethyl vinyl ether ND 2.50 5.00 ug/L
Chloroform (Trichloromethane) ND 0.500 1.00 ug/L
Chloromethane (Methyl chloride) ND 1.50 3.00 ug/L
2-Chlorotoluene ND 0.500 1.00 ug/L
4-Chlorotoluene ND 0.500 1.00 ug/L
1,2-Dibromo-3-chloropropane
(DBCP)
ND 2.50 5.00 ug/L
Dibromochloromethane ND 0.500 1.00 ug/L
1,2-Dibromoethane (EDB) ND 0.500 1.00 ug/L
Dibromomethane ND 0.500 1.00 ug/L
1,2-Dichlorobenzene ND 0.500 1.00 ug/L
1,3-Dichlorobenzene ND 0.500 1.00 ug/L
1,4-Dichlorobenzene ND 0.500 1.00 ug/L
Dichlorodifluoromethane ND 1.50 3.00 ug/L
1,1-Dichloroethane ND 0.500 1.00 ug/L
1,2-Dichloroethane (EDC) ND 0.500 1.00 ug/L
1,1-Dichloroethene ND 0.500 1.00 ug/L
cis-1,2-Dichloroethene ND 0.500 1.00 ug/L
trans-1,2-Dichloroethene ND 0.500 1.00 ug/L
1,2-Dichloropropane ND 0.500 1.00 ug/L
1,3-Dichloropropane ND 0.500 1.00 ug/L
2,2-Dichloropropane ND 0.500 1.00 ug/L
1,1-Dichloropropene ND 0.500 1.00 ug/L
cis-1,3-Dichloropropene ND 0.500 1.00 ug/L
trans-1,3-Dichloropropene ND 0.500 1.00 ug/L
Ethylbenzene ND 0.500 1.00 ug/L
Hexachlorobutadiene ND 1.50 3.00 ug/L
2-Hexanone ND 2.50 5.00 ug/L
[TOC_1]Quality Control
Results[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 98 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0294 - 5030B (Continued) Prepared: 06/03/2023 10:00 Method Blank (B3F0294-BLK1) Analyzed: 06/23/2023 14:28
Iodomethane ND 0.500 1.00 ug/L
Isopropylbenzene ND 0.500 1.00 ug/L
p-Isopropyltoluene ND 0.500 1.00 ug/L
4-Methyl-2-pentanone (MIBK) ND 2.50 5.00 ug/L
Methylene chloride (DCM) ND 5.00 10.0 ug/L
Naphthalene ND 0.500 1.00 ug/L
n-Propylbenzene ND 0.500 1.00 ug/L
Styrene ND 0.500 1.00 ug/L
1,1,1,2-Tetrachloroethane ND 0.500 1.00 ug/L
1,1,2,2-Tetrachloroethane ND 0.500 1.00 ug/L
Tetrachloroethene ND 0.500 1.00 ug/L
Toluene (Methyl benzene) ND 0.500 1.00 ug/L
1,2,3-Trichlorobenzene ND 0.500 1.00 ug/L
1,2,4-Trichlorobenzene ND 0.500 1.00 ug/L
1,1,1-Trichloroethane ND 0.500 1.00 ug/L
1,1,2-Trichloroethane ND 0.500 1.00 ug/L
Trichloroethene ND 0.500 1.00 ug/L
Trichlorofluoromethane ND 0.500 1.00 ug/L
Trichlorotrifluoroethane
(Freon-113)
ND 0.500 1.00 ug/L
1,2,3-Trichloropropane ND 0.500 1.00 ug/L
1,2,4-Trimethylbenzene ND 0.500 1.00 ug/L
1,3,5-Trimethylbenzene ND 0.500 1.00 ug/L
Vinyl Acetate ND 0.500 5.00 ug/L
Vinyl chloride (Chloroethene) ND 0.500 3.00 ug/L
o-Xylene ND 0.500 1.00 ug/L
m,p-Xylenes ND 1.00 2.00 ug/L
tert-Butyl alcohol (TBA) ND 10.0 50.0 ug/L
Diisopropyl ether (DIPE) ND 0.500 1.00 ug/L
Ethyl alcohol (Ethanol) ND 250 500 ug/L
Ethyl-tert-butyl ether (ETBE) ND 0.500 1.00 ug/L
Methyl-tert-butyl ether (MTBE) ND 0.500 1.00 ug/L
tert-Amyl methyl ether (TAME) ND 0.500 1.00 ug/L
Acrylonitrile (2-Propenenitrile) ND 0.500 1.00 ug/L
Hexachloroethane ND 0.500 1.00 ug/L
trans-1,4-Dichloro-2-butene ND 0.500 1.00 ug/L
Surrogate: Bromofluorobenzene 50.1 ug/L 50.0 100 75-125 Surrogate: Dibromofluoromethane 51.1 ug/L 50.0 102 75-125 Surrogate: Toluene-d8 49.7 ug/L 50.0 99.5 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 99 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0294 - 5030B (Continued) Prepared: 06/03/2023 10:00 LCS (B3F0294-BS1) Analyzed: 06/23/2023 12:30
Benzene 48.7 ug/L 50.0 97.5 75-125
Carbon tetrachloride 51.5 ug/L 50.0 103 75-125
Chlorobenzene 48.0 ug/L 50.0 96.0 75-125
Chloroform (Trichloromethane) 52.3 ug/L 50.0 105 75-125 1,2-Dichlorobenzene 47.1 ug/L 50.0 94.1 75-125
1,1-Dichloroethane 52.5 ug/L 50.0 105 75-125
1,1-Dichloroethene 51.5 ug/L 50.0 103 75-125
cis-1,2-Dichloroethene 50.4 ug/L 50.0 101 75-125
Ethylbenzene 48.4 ug/L 50.0 96.8 75-125
Isopropylbenzene 45.8 ug/L 50.0 91.5 75-125
n-Propylbenzene 45.8 ug/L 50.0 91.7 75-125
Toluene (Methyl benzene) 47.4 ug/L 50.0 94.7 75-125
1,1,1-Trichloroethane 50.5 ug/L 50.0 101 75-125
1,1,2-Trichloroethane 49.6 ug/L 50.0 99.2 75-125
Trichloroethene 49.1 ug/L 50.0 98.1 75-125
1,2,4-Trimethylbenzene 46.0 ug/L 50.0 91.9 75-125
1,3,5-Trimethylbenzene 46.4 ug/L 50.0 92.7 75-125
o-Xylene 48.8 ug/L 50.0 97.6 75-125
m,p-Xylenes 97.4 ug/L 100 97.4 75-125
Methyl-tert-butyl ether (MTBE) 52.9 ug/L 50.0 106 75-125 Surrogate: Bromofluorobenzene 50.4 ug/L 50.0 101 75-125 Surrogate: Dibromofluoromethane 52.6 ug/L 50.0 105 75-125 Surrogate: Toluene-d8 48.4 ug/L 50.0 96.7 75-125
LCSD (B3F0294-BSD1) Analyzed: 06/23/2023 13:09
Benzene 49.1 ug/L 50.0 98.3 75-125 0.838 20
Carbon tetrachloride 50.9 ug/L 50.0 102 75-125 1.11 20
Chlorobenzene 48.1 ug/L 50.0 96.1 75-125 0.167 20
Chloroform (Trichloromethane) 51.9 ug/L 50.0 104 75-125 0.787 20 1,2-Dichlorobenzene 46.4 ug/L 50.0 92.7 75-125 1.48 20
1,1-Dichloroethane 52.2 ug/L 50.0 104 75-125 0.649 20
1,1-Dichloroethene 50.5 ug/L 50.0 101 75-125 2.00 20
cis-1,2-Dichloroethene 50.2 ug/L 50.0 100 75-125 0.596 20 Ethylbenzene 47.9 ug/L 50.0 95.9 75-125 0.955 20
Isopropylbenzene 45.4 ug/L 50.0 90.7 75-125 0.922 20
n-Propylbenzene 45.4 ug/L 50.0 90.7 75-125 1.10 20
Toluene (Methyl benzene) 47.2 ug/L 50.0 94.4 75-125 0.381 20 1,1,1-Trichloroethane 50.8 ug/L 50.0 102 75-125 0.533 20 1,1,2-Trichloroethane 50.7 ug/L 50.0 101 75-125 2.13 20 Trichloroethene 48.9 ug/L 50.0 97.8 75-125 0.388 20
1,2,4-Trimethylbenzene 45.4 ug/L 50.0 90.9 75-125 1.16 20 1,3,5-Trimethylbenzene 45.9 ug/L 50.0 91.8 75-125 0.954 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 100 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0294 - 5030B (Continued) Prepared: 06/03/2023 10:00 LCSD (B3F0294-BSD1) Analyzed: 06/23/2023 13:09
o-Xylene 48.3 ug/L 50.0 96.5 75-125 1.05 20
m,p-Xylenes 97.1 ug/L 100 97.1 75-125 0.350 20
Methyl-tert-butyl ether (MTBE) 53.4 ug/L 50.0 107 75-125 0.960 20 Surrogate: Bromofluorobenzene 50.1 ug/L 50.0 100 75-125 Surrogate: Dibromofluoromethane 52.0 ug/L 50.0 104 75-125 Surrogate: Toluene-d8 48.3 ug/L 50.0 96.6 75-125
Duplicate (B3F0294-DUP1) Source: BEF0208-01 Analyzed: 06/23/2023 15:46 Benzene ND 0.500 1.00 ug/L ND NA 20
Carbon tetrachloride ND 0.500 1.00 ug/L ND NA 20
Chlorobenzene ND 0.500 1.00 ug/L ND NA 20
Chloroform (Trichloromethane) ND 0.500 1.00 ug/L ND NA 20 1,2-Dichlorobenzene ND 0.500 1.00 ug/L ND NA 20
1,1-Dichloroethane ND 0.500 1.00 ug/L ND NA 20
1,1-Dichloroethene ND 0.500 1.00 ug/L ND NA 20
cis-1,2-Dichloroethene ND 0.500 1.00 ug/L ND NA 20
Ethylbenzene ND 0.500 1.00 ug/L ND NA 20
Isopropylbenzene ND 0.500 1.00 ug/L ND NA 20
n-Propylbenzene ND 0.500 1.00 ug/L ND NA 20
Toluene (Methyl benzene) ND 0.500 1.00 ug/L ND NA 20
1,1,1-Trichloroethane ND 0.500 1.00 ug/L ND NA 20
1,1,2-Trichloroethane ND 0.500 1.00 ug/L ND NA 20
Trichloroethene ND 0.500 1.00 ug/L ND NA 20
1,2,4-Trimethylbenzene ND 0.500 1.00 ug/L ND NA 20
1,3,5-Trimethylbenzene ND 0.500 1.00 ug/L ND NA 20
o-Xylene ND 0.500 1.00 ug/L ND NA 20
m,p-Xylenes ND 1.00 2.00 ug/L ND NA 20
Ethyl alcohol (Ethanol) ND 250 500 ug/L ND NA 20
Methyl-tert-butyl ether (MTBE) ND 0.500 1.00 ug/L ND NA 20 Surrogate: Bromofluorobenzene 50.2 ug/L 50.0 100 75-125 Surrogate: Dibromofluoromethane 51.4 ug/L 50.0 103 75-125 Surrogate: Toluene-d8 49.5 ug/L 50.0 98.9 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 101 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0294 - 5030B (Continued) Prepared: 06/03/2023 10:00 Matrix Spike (B3F0294-MS1) Source: BEF0208-01 Analyzed: 06/23/2023 23:38 Benzene 54.7 ug/L 50.0 0.00 109 75-125
Carbon tetrachloride 53.7 ug/L 50.0 0.00 107 75-125
Chlorobenzene 53.4 ug/L 50.0 0.00 107 75-125
Chloroform (Trichloromethane) 58.5 ug/L 50.0 0.00 117 75-125 1,2-Dichlorobenzene 51.2 ug/L 50.0 0.00 102 75-125
1,1-Dichloroethane 58.8 ug/L 50.0 0.00 118 75-125
1,1-Dichloroethene 56.0 ug/L 50.0 0.00 112 75-125
cis-1,2-Dichloroethene 55.8 ug/L 50.0 0.00 112 75-125
Ethylbenzene 53.5 ug/L 50.0 0.00 107 75-125
Isopropylbenzene 49.2 ug/L 50.0 0.00 98.4 75-125
n-Propylbenzene 49.1 ug/L 50.0 0.00 98.3 75-125
Toluene (Methyl benzene) 52.8 ug/L 50.0 0.00 106 75-125 1,1,1-Trichloroethane 54.4 ug/L 50.0 0.00 109 75-125
1,1,2-Trichloroethane 56.4 ug/L 50.0 0.00 113 75-125
Trichloroethene 53.8 ug/L 50.0 0.00 108 75-125
1,2,4-Trimethylbenzene 49.5 ug/L 50.0 0.00 99.0 75-125
1,3,5-Trimethylbenzene 49.6 ug/L 50.0 0.00 99.1 75-125
o-Xylene 54.0 ug/L 50.0 0.00 108 75-125
m,p-Xylenes 108 ug/L 100 0.00 108 75-125
Methyl-tert-butyl ether (MTBE) 60.0 ug/L 50.0 0.00 120 75-125 Surrogate: Bromofluorobenzene 50.3 ug/L 50.0 101 75-125 Surrogate: Dibromofluoromethane 52.4 ug/L 50.0 105 75-125 Surrogate: Toluene-d8 49.1 ug/L 50.0 98.2 75-125
Matrix Spike Dup (B3F0294-MSD1) Source: BEF0208-01 Analyzed: 06/24/2023 00:17 Benzene 51.6 ug/L 50.0 0.00 103 75-125 5.87 20
Carbon tetrachloride 51.0 ug/L 50.0 0.00 102 75-125 5.10 20 Chlorobenzene 50.2 ug/L 50.0 0.00 100 75-125 6.12 20
Chloroform (Trichloromethane) 53.6 ug/L 50.0 0.00 107 75-125 8.60 20 1,2-Dichlorobenzene 48.0 ug/L 50.0 0.00 96.1 75-125 6.39 20 1,1-Dichloroethane 54.5 ug/L 50.0 0.00 109 75-125 7.48 20 1,1-Dichloroethene 52.4 ug/L 50.0 0.00 105 75-125 6.53 20 cis-1,2-Dichloroethene 52.7 ug/L 50.0 0.00 105 75-125 5.70 20 Ethylbenzene 49.9 ug/L 50.0 0.00 99.7 75-125 7.08 20
Isopropylbenzene 46.3 ug/L 50.0 0.00 92.5 75-125 6.10 20 n-Propylbenzene 46.0 ug/L 50.0 0.00 92.1 75-125 6.49 20 Toluene (Methyl benzene) 49.6 ug/L 50.0 0.00 99.2 75-125 6.12 20 1,1,1-Trichloroethane 51.2 ug/L 50.0 0.00 102 75-125 5.96 20 1,1,2-Trichloroethane 53.7 ug/L 50.0 0.00 107 75-125 4.99 20 Trichloroethene 50.8 ug/L 50.0 0.00 102 75-125 5.68 20
1,2,4-Trimethylbenzene 46.4 ug/L 50.0 0.00 92.9 75-125 6.32 20 1,3,5-Trimethylbenzene 46.7 ug/L 50.0 0.00 93.4 75-125 5.92 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 102 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0294 - 5030B (Continued) Prepared: 06/03/2023 10:00 Matrix Spike Dup (B3F0294-MSD1) Source: BEF0208-01 Analyzed: 06/24/2023 00:17 o-Xylene 50.6 ug/L 50.0 0.00 101 75-125 6.67 20
m,p-Xylenes 100 ug/L 100 0.00 100 75-125 7.53 20
Methyl-tert-butyl ether (MTBE) 56.0 ug/L 50.0 0.00 112 75-125 6.88 20 Surrogate: Bromofluorobenzene 49.8 ug/L 50.0 99.6 75-125 Surrogate: Dibromofluoromethane 52.0 ug/L 50.0 104 75-125 Surrogate: Toluene-d8 48.5 ug/L 50.0 96.9 75-125
Batch: B3F0295 - 5035A Prepared: 06/23/2023 09:00
Method Blank (B3F0295-BLK1) Analyzed: 06/24/2023 04:50
Acetone ND 25.0 50.0 ug/kg
Benzene ND 1.00 10.0 ug/kg
Bromobenzene (Phenyl bromide) ND 5.00 10.0 ug/kg
Bromochloromethane ND 5.00 10.0 ug/kg
Bromodichloromethane ND 5.00 10.0 ug/kg
Bromoform (Tribromomethane) ND 25.0 50.0 ug/kg
Bromomethane (Methyl bromide) ND 15.0 30.0 ug/kg
2-Butanone (MEK) ND 25.0 50.0 ug/kg
n-Butylbenzene ND 5.00 10.0 ug/kg
sec-Butylbenzene ND 5.00 10.0 ug/kg
tert-Butylbenzene ND 5.00 10.0 ug/kg
Carbon Disulfide ND 25.0 50.0 ug/kg
Carbon tetrachloride ND 5.00 10.0 ug/kg
Chlorobenzene ND 5.00 10.0 ug/kg
Chloroethane ND 15.0 30.0 ug/kg
2-Chloroethyl vinyl ether ND 50.0 50.0 ug/kg
Chloroform (Trichloromethane) ND 5.00 10.0 ug/kg
Chloromethane (Methyl chloride) ND 15.0 30.0 ug/kg
2-Chlorotoluene ND 5.00 10.0 ug/kg
4-Chlorotoluene ND 5.00 10.0 ug/kg
1,2-Dibromo-3-chloropropane
(DBCP)
ND 5.00 10.0 ug/kg
Dibromochloromethane ND 5.00 10.0 ug/kg
1,2-Dibromoethane (EDB) ND 5.00 10.0 ug/kg
Dibromomethane ND 5.00 10.0 ug/kg
1,2-Dichlorobenzene ND 5.00 10.0 ug/kg
1,3-Dichlorobenzene ND 5.00 10.0 ug/kg
1,4-Dichlorobenzene ND 5.00 10.0 ug/kg
Dichlorodifluoromethane ND 15.0 30.0 ug/kg
1,1-Dichloroethane ND 5.00 10.0 ug/kg
1,2-Dichloroethane (EDC) ND 5.00 10.0 ug/kg
1,1-Dichloroethene ND 5.00 10.0 ug/kg
cis-1,2-Dichloroethene ND 5.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 103 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0295 - 5035A (Continued) Prepared: 06/23/2023 09:00 Method Blank (B3F0295-BLK1) Analyzed: 06/24/2023 04:50
trans-1,2-Dichloroethene ND 5.00 10.0 ug/kg
1,2-Dichloropropane ND 5.00 10.0 ug/kg
1,3-Dichloropropane ND 5.00 10.0 ug/kg
2,2-Dichloropropane ND 5.00 10.0 ug/kg
1,1-Dichloropropene ND 5.00 10.0 ug/kg
cis-1,3-Dichloropropene ND 5.00 10.0 ug/kg
trans-1,3-Dichloropropene ND 5.00 10.0 ug/kg
Ethylbenzene ND 1.00 10.0 ug/kg
Hexachlorobutadiene ND 15.0 30.0 ug/kg
2-Hexanone ND 25.0 50.0 ug/kg
Iodomethane ND 5.00 10.0 ug/kg
Isopropylbenzene ND 5.00 10.0 ug/kg
p-Isopropyltoluene ND 5.00 10.0 ug/kg
4-Methyl-2-pentanone (MIBK) ND 25.0 50.0 ug/kg
Methylene chloride (DCM) ND 25.0 50.0 ug/kg
Naphthalene ND 5.00 10.0 ug/kg
n-Propylbenzene ND 5.00 10.0 ug/kg
Styrene ND 5.00 10.0 ug/kg
1,1,1,2-Tetrachloroethane ND 5.00 10.0 ug/kg
1,1,2,2-Tetrachloroethane ND 5.00 10.0 ug/kg
Tetrachloroethene ND 2.00 10.0 ug/kg
Toluene (Methyl benzene) ND 1.00 10.0 ug/kg
1,2,3-Trichlorobenzene ND 5.00 10.0 ug/kg
1,2,4-Trichlorobenzene ND 5.00 10.0 ug/kg
1,1,1-Trichloroethane ND 5.00 10.0 ug/kg
1,1,2-Trichloroethane ND 5.00 10.0 ug/kg
Trichloroethene ND 1.50 10.0 ug/kg
Trichlorofluoromethane ND 5.00 10.0 ug/kg
Trichlorotrifluoroethane
(Freon-113)
ND 5.00 10.0 ug/kg
1,2,3-Trichloropropane ND 1.00 5.00 ug/kg
1,2,4-Trimethylbenzene ND 5.00 10.0 ug/kg
1,3,5-Trimethylbenzene ND 5.00 10.0 ug/kg
Vinyl Acetate ND 25.0 50.0 ug/kg
Vinyl chloride (Chloroethene) ND 5.00 10.0 ug/kg
o-Xylene ND 1.00 10.0 ug/kg
m,p-Xylenes ND 1.00 20.0 ug/kg
tert-Butyl alcohol (TBA) ND 10.0 50.0 ug/kg
Diisopropyl ether (DIPE) ND 2.00 10.0 ug/kg
Ethyl alcohol (Ethanol) ND 100 250 ug/kg
Ethyl-tert-butyl ether (ETBE) ND 2.00 10.0 ug/kg
Methyl-tert-butyl ether (MTBE) ND 2.00 10.0 ug/kg
tert-Amyl methyl ether (TAME) ND 2.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 104 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0295 - 5035A (Continued) Prepared: 06/23/2023 09:00 Method Blank (B3F0295-BLK1) Analyzed: 06/24/2023 04:50
Surrogate: Bromofluorobenzene 50.4 ug/kg 50.0 101 75-125 Surrogate: Dibromofluoromethane 51.1 ug/kg 50.0 102 75-125 Surrogate: Toluene-d8 49.9 ug/kg 50.0 99.8 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 105 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0295 - 5035A (Continued) Prepared: 06/23/2023 09:00 LCS (B3F0295-BS1) Analyzed: 06/24/2023 02:53
Benzene 47.7 ug/kg 50.0 95.3 75-125
Carbon tetrachloride 47.8 ug/kg 50.0 95.5 75-125
Chlorobenzene 47.3 ug/kg 50.0 94.5 75-125
Chloroform (Trichloromethane) 50.7 ug/kg 50.0 101 75-125 1,2-Dichlorobenzene 45.1 ug/kg 50.0 90.2 75-125
1,1-Dichloroethane 50.7 ug/kg 50.0 101 75-125
1,1-Dichloroethene 48.1 ug/kg 50.0 96.1 75-125
cis-1,2-Dichloroethene 49.1 ug/kg 50.0 98.2 75-125
Ethylbenzene 47.0 ug/kg 50.0 94.1 75-125
Isopropylbenzene 43.2 ug/kg 50.0 86.4 75-125
n-Propylbenzene 43.2 ug/kg 50.0 86.3 75-125
Toluene (Methyl benzene) 46.6 ug/kg 50.0 93.2 75-125
1,1,1-Trichloroethane 47.4 ug/kg 50.0 94.9 75-125
1,1,2-Trichloroethane 48.7 ug/kg 50.0 97.4 75-125
Trichloroethene 47.6 ug/kg 50.0 95.2 75-125
1,2,4-Trimethylbenzene 43.7 ug/kg 50.0 87.4 75-125
1,3,5-Trimethylbenzene 43.5 ug/kg 50.0 87.0 75-125
o-Xylene 47.5 ug/kg 50.0 95.1 75-125
m,p-Xylenes 94.5 ug/kg 100 94.5 75-125
Methyl-tert-butyl ether (MTBE) 52.2 ug/kg 50.0 104 75-125 Surrogate: Bromofluorobenzene 49.7 ug/kg 50.0 99.5 75-125 Surrogate: Dibromofluoromethane 51.7 ug/kg 50.0 103 75-125 Surrogate: Toluene-d8 49.0 ug/kg 50.0 98.1 75-125
LCSD (B3F0295-BSD1) Analyzed: 06/24/2023 03:32
Benzene 48.3 ug/kg 50.0 96.6 75-125 1.31 20
Carbon tetrachloride 48.6 ug/kg 50.0 97.2 75-125 1.74 20 Chlorobenzene 47.6 ug/kg 50.0 95.2 75-125 0.675 20
Chloroform (Trichloromethane) 51.4 ug/kg 50.0 103 75-125 1.29 20 1,2-Dichlorobenzene 45.8 ug/kg 50.0 91.6 75-125 1.47 20 1,1-Dichloroethane 51.3 ug/kg 50.0 103 75-125 1.20 20
1,1-Dichloroethene 49.1 ug/kg 50.0 98.3 75-125 2.22 20
cis-1,2-Dichloroethene 50.2 ug/kg 50.0 100 75-125 2.22 20 Ethylbenzene 47.7 ug/kg 50.0 95.3 75-125 1.31 20
Isopropylbenzene 43.8 ug/kg 50.0 87.6 75-125 1.36 20
n-Propylbenzene 44.2 ug/kg 50.0 88.5 75-125 2.45 20
Toluene (Methyl benzene) 47.0 ug/kg 50.0 93.9 75-125 0.769 20 1,1,1-Trichloroethane 49.1 ug/kg 50.0 98.2 75-125 3.46 20 1,1,2-Trichloroethane 49.2 ug/kg 50.0 98.3 75-125 0.981 20 Trichloroethene 48.3 ug/kg 50.0 96.5 75-125 1.40 20
1,2,4-Trimethylbenzene 44.4 ug/kg 50.0 88.8 75-125 1.63 20 1,3,5-Trimethylbenzene 44.5 ug/kg 50.0 89.1 75-125 2.29 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 106 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0295 - 5035A (Continued) Prepared: 06/23/2023 09:00 LCSD (B3F0295-BSD1) Analyzed: 06/24/2023 03:32
o-Xylene 48.0 ug/kg 50.0 96.0 75-125 0.942 20
m,p-Xylenes 96.1 ug/kg 100 96.1 75-125 1.65 20
Methyl-tert-butyl ether (MTBE) 51.5 ug/kg 50.0 103 75-125 1.35 20 Surrogate: Bromofluorobenzene 49.7 ug/kg 50.0 99.5 75-125 Surrogate: Dibromofluoromethane 51.1 ug/kg 50.0 102 75-125 Surrogate: Toluene-d8 48.8 ug/kg 50.0 97.6 75-125
Matrix Spike (B3F0295-MS1) Source: BEF0196-27 Analyzed: 06/24/2023 12:39 Benzene 46.5 ug/kg 50.0 0.603 91.8 75-125
Carbon tetrachloride 48.5 ug/kg 50.0 0.00 96.9 75-125
Chlorobenzene 44.5 ug/kg 50.0 0.00 89.0 75-125
Chloroform (Trichloromethane) 50.9 ug/kg 50.0 0.00 102 75-125 1,2-Dichlorobenzene 40.6 ug/kg 50.0 0.00 81.3 75-125
1,1-Dichloroethane 50.0 ug/kg 50.0 0.00 99.9 75-125
1,1-Dichloroethene 46.8 ug/kg 50.0 0.00 93.5 75-125
cis-1,2-Dichloroethene 47.5 ug/kg 50.0 0.00 94.9 75-125 Ethylbenzene 44.6 ug/kg 50.0 0.00 89.2 75-125
Isopropylbenzene 43.0 ug/kg 50.0 0.00 86.1 75-125
n-Propylbenzene 41.8 ug/kg 50.0 0.00 83.6 75-125
Toluene (Methyl benzene) 44.3 ug/kg 50.0 0.00 88.6 75-125 1,1,1-Trichloroethane 48.7 ug/kg 50.0 0.00 97.4 75-125
1,1,2-Trichloroethane 43.1 ug/kg 50.0 0.00 86.2 75-125
Trichloroethene 47.1 ug/kg 50.0 0.00 94.2 75-125
1,2,4-Trimethylbenzene 41.6 ug/kg 50.0 0.00 83.3 75-125 1,3,5-Trimethylbenzene 42.5 ug/kg 50.0 0.00 85.1 75-125 o-Xylene 45.1 ug/kg 50.0 0.00 90.3 75-125
m,p-Xylenes 88.5 ug/kg 100 0.00 88.5 75-125
Methyl-tert-butyl ether (MTBE) 47.0 ug/kg 50.0 0.00 93.9 75-125 Surrogate: Bromofluorobenzene 51.6 ug/kg 50.0 103 75-125 Surrogate: Dibromofluoromethane 52.0 ug/kg 50.0 104 75-125 Surrogate: Toluene-d8 48.9 ug/kg 50.0 97.8 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 107 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0295 - 5035A (Continued) Prepared: 06/23/2023 09:00 Matrix Spike Dup (B3F0295-MSD1) Source: BEF0196-27 Analyzed: 06/24/2023 13:18 Benzene 45.0 ug/kg 50.0 0.603 88.8 75-125 3.30 20
Carbon tetrachloride 47.5 ug/kg 50.0 0.00 95.0 75-125 2.04 20 Chlorobenzene 43.2 ug/kg 50.0 0.00 86.3 75-125 3.08 20
Chloroform (Trichloromethane) 48.0 ug/kg 50.0 0.00 96.1 75-125 5.76 20 1,2-Dichlorobenzene 38.5 ug/kg 50.0 0.00 76.9 75-125 5.51 20 1,1-Dichloroethane 48.9 ug/kg 50.0 0.00 97.7 75-125 2.21 20 1,1-Dichloroethene 46.2 ug/kg 50.0 0.00 92.3 75-125 1.29 20 cis-1,2-Dichloroethene 45.5 ug/kg 50.0 0.00 91.0 75-125 4.17 20 Ethylbenzene 44.4 ug/kg 50.0 0.00 88.8 75-125 0.517 20
Isopropylbenzene 42.6 ug/kg 50.0 0.00 85.2 75-125 1.07 20 n-Propylbenzene 41.7 ug/kg 50.0 0.00 83.5 75-125 0.120 20 Toluene (Methyl benzene) 43.8 ug/kg 50.0 0.00 87.7 75-125 0.999 20 1,1,1-Trichloroethane 47.2 ug/kg 50.0 0.00 94.3 75-125 3.19 20 1,1,2-Trichloroethane 37.7 ug/kg 50.0 0.00 75.5 75-125 13.3 20 Trichloroethene 46.0 ug/kg 50.0 0.00 92.0 75-125 2.36 20 1,2,4-Trimethylbenzene 41.0 ug/kg 50.0 0.00 82.0 75-125 1.55 20 1,3,5-Trimethylbenzene 41.9 ug/kg 50.0 0.00 83.9 75-125 1.44 20 o-Xylene 43.6 ug/kg 50.0 0.00 87.1 75-125 3.56 20
m,p-Xylenes 88.0 ug/kg 100 0.00 88.0 75-125 0.600 20
Methyl-tert-butyl ether (MTBE) 41.0 ug/kg 50.0 0.00 81.9 75-125 13.7 20 Surrogate: Bromofluorobenzene 51.4 ug/kg 50.0 103 75-125 Surrogate: Dibromofluoromethane 51.4 ug/kg 50.0 103 75-125 Surrogate: Toluene-d8 49.1 ug/kg 50.0 98.2 75-125
Batch: B3F0296 - 5035A Prepared: 06/23/2023 09:00
Method Blank (B3F0296-BLK1) Analyzed: 06/24/2023 04:51
Acetone ND 25.0 50.0 ug/kg
Benzene ND 1.00 10.0 ug/kg
Bromobenzene (Phenyl bromide) ND 5.00 10.0 ug/kg
Bromochloromethane ND 5.00 10.0 ug/kg
Bromodichloromethane ND 5.00 10.0 ug/kg
Bromoform (Tribromomethane) ND 25.0 50.0 ug/kg
Bromomethane (Methyl bromide) ND 15.0 30.0 ug/kg
2-Butanone (MEK) ND 25.0 50.0 ug/kg
n-Butylbenzene ND 5.00 10.0 ug/kg
sec-Butylbenzene ND 5.00 10.0 ug/kg
tert-Butylbenzene ND 5.00 10.0 ug/kg
Carbon Disulfide ND 25.0 50.0 ug/kg
Carbon tetrachloride ND 5.00 10.0 ug/kg
Chlorobenzene ND 5.00 10.0 ug/kg
Chloroethane ND 15.0 30.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 108 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0296 - 5035A (Continued) Prepared: 06/23/2023 09:00 Method Blank (B3F0296-BLK1) Analyzed: 06/24/2023 04:51
2-Chloroethyl vinyl ether ND 50.0 50.0 ug/kg
Chloroform (Trichloromethane) ND 5.00 10.0 ug/kg
Chloromethane (Methyl chloride) ND 15.0 30.0 ug/kg
2-Chlorotoluene ND 5.00 10.0 ug/kg
4-Chlorotoluene ND 5.00 10.0 ug/kg
1,2-Dibromo-3-chloropropane
(DBCP)
ND 5.00 10.0 ug/kg
Dibromochloromethane ND 5.00 10.0 ug/kg
1,2-Dibromoethane (EDB) ND 5.00 10.0 ug/kg
Dibromomethane ND 5.00 10.0 ug/kg
1,2-Dichlorobenzene ND 5.00 10.0 ug/kg
1,3-Dichlorobenzene ND 5.00 10.0 ug/kg
1,4-Dichlorobenzene ND 5.00 10.0 ug/kg
Dichlorodifluoromethane ND 15.0 30.0 ug/kg
1,1-Dichloroethane ND 5.00 10.0 ug/kg
1,2-Dichloroethane (EDC) ND 5.00 10.0 ug/kg
1,1-Dichloroethene ND 5.00 10.0 ug/kg
cis-1,2-Dichloroethene ND 5.00 10.0 ug/kg
trans-1,2-Dichloroethene ND 5.00 10.0 ug/kg
1,2-Dichloropropane ND 5.00 10.0 ug/kg
1,3-Dichloropropane ND 5.00 10.0 ug/kg
2,2-Dichloropropane ND 5.00 10.0 ug/kg
1,1-Dichloropropene ND 5.00 10.0 ug/kg
cis-1,3-Dichloropropene ND 5.00 10.0 ug/kg
trans-1,3-Dichloropropene ND 5.00 10.0 ug/kg
Ethylbenzene ND 1.00 10.0 ug/kg
Hexachlorobutadiene ND 15.0 30.0 ug/kg
2-Hexanone ND 25.0 50.0 ug/kg
Iodomethane ND 5.00 10.0 ug/kg
Isopropylbenzene ND 5.00 10.0 ug/kg
p-Isopropyltoluene ND 5.00 10.0 ug/kg
4-Methyl-2-pentanone (MIBK) ND 25.0 50.0 ug/kg
Methylene chloride (DCM) ND 25.0 50.0 ug/kg
Naphthalene ND 5.00 10.0 ug/kg
n-Propylbenzene ND 5.00 10.0 ug/kg
Styrene ND 5.00 10.0 ug/kg
1,1,1,2-Tetrachloroethane ND 5.00 10.0 ug/kg
1,1,2,2-Tetrachloroethane ND 5.00 10.0 ug/kg
Tetrachloroethene ND 2.00 10.0 ug/kg
Toluene (Methyl benzene) ND 1.00 10.0 ug/kg
1,2,3-Trichlorobenzene ND 5.00 10.0 ug/kg
1,2,4-Trichlorobenzene ND 5.00 10.0 ug/kg
1,1,1-Trichloroethane ND 5.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 109 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0296 - 5035A (Continued) Prepared: 06/23/2023 09:00 Method Blank (B3F0296-BLK1) Analyzed: 06/24/2023 04:51
1,1,2-Trichloroethane ND 5.00 10.0 ug/kg
Trichloroethene ND 1.50 10.0 ug/kg
Trichlorofluoromethane ND 5.00 10.0 ug/kg
Trichlorotrifluoroethane
(Freon-113)
ND 5.00 10.0 ug/kg
1,2,3-Trichloropropane ND 1.00 5.00 ug/kg
1,2,4-Trimethylbenzene ND 5.00 10.0 ug/kg
1,3,5-Trimethylbenzene ND 5.00 10.0 ug/kg
Vinyl Acetate ND 25.0 50.0 ug/kg
Vinyl chloride (Chloroethene) ND 5.00 10.0 ug/kg
o-Xylene ND 1.00 10.0 ug/kg
m,p-Xylenes ND 1.00 20.0 ug/kg
tert-Butyl alcohol (TBA) ND 10.0 50.0 ug/kg
Diisopropyl ether (DIPE) ND 2.00 10.0 ug/kg
Ethyl alcohol (Ethanol) ND 100 250 ug/kg
Ethyl-tert-butyl ether (ETBE) ND 2.00 10.0 ug/kg
Methyl-tert-butyl ether (MTBE) ND 2.00 10.0 ug/kg
tert-Amyl methyl ether (TAME) ND 2.00 10.0 ug/kg
Surrogate: Bromofluorobenzene 49.7 ug/kg 50.0 99.4 75-125 Surrogate: Dibromofluoromethane 50.2 ug/kg 50.0 100 75-125 Surrogate: Toluene-d8 49.5 ug/kg 50.0 98.9 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 110 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0296 - 5035A (Continued) Prepared: 06/23/2023 09:00 LCS (B3F0296-BS1) Analyzed: 06/24/2023 03:14
Benzene 55.6 ug/kg 50.0 111 75-125
Carbon tetrachloride 53.0 ug/kg 50.0 106 75-125
Chlorobenzene 53.9 ug/kg 50.0 108 75-125
Chloroform (Trichloromethane) 54.3 ug/kg 50.0 109 75-125 1,2-Dichlorobenzene 45.0 ug/kg 50.0 90.1 75-125
1,1-Dichloroethane 54.3 ug/kg 50.0 109 75-125
1,1-Dichloroethene 31.2 ug/kg 50.0 62.4 75-125 BS
cis-1,2-Dichloroethene 56.6 ug/kg 50.0 113 75-125
Ethylbenzene 56.7 ug/kg 50.0 113 75-125
Isopropylbenzene 51.1 ug/kg 50.0 102 75-125
n-Propylbenzene 48.0 ug/kg 50.0 96.1 75-125
Toluene (Methyl benzene) 52.5 ug/kg 50.0 105 75-125
1,1,1-Trichloroethane 52.6 ug/kg 50.0 105 75-125
1,1,2-Trichloroethane 53.8 ug/kg 50.0 108 75-125
Trichloroethene 51.5 ug/kg 50.0 103 75-125
1,2,4-Trimethylbenzene 48.6 ug/kg 50.0 97.3 75-125
1,3,5-Trimethylbenzene 50.1 ug/kg 50.0 100 75-125
o-Xylene 49.6 ug/kg 50.0 99.3 75-125
m,p-Xylenes 100 ug/kg 100 100 75-125
Methyl-tert-butyl ether (MTBE) 56.3 ug/kg 50.0 113 75-125 Surrogate: Bromofluorobenzene 52.2 ug/kg 50.0 104 75-125 Surrogate: Dibromofluoromethane 51.4 ug/kg 50.0 103 75-125 Surrogate: Toluene-d8 51.3 ug/kg 50.0 103 75-125
LCSD (B3F0296-BSD1) Analyzed: 06/24/2023 03:47
Benzene 43.7 ug/kg 50.0 87.3 75-125 24.1 20 R
Carbon tetrachloride 49.9 ug/kg 50.0 99.8 75-125 6.04 20 Chlorobenzene 62.4 ug/kg 50.0 125 75-125 14.6 20
Chloroform (Trichloromethane) 45.8 ug/kg 50.0 91.6 75-125 17.0 20 1,2-Dichlorobenzene 44.4 ug/kg 50.0 88.8 75-125 1.45 20 1,1-Dichloroethane 39.8 ug/kg 50.0 79.5 75-125 30.9 20 R 1,1-Dichloroethene 38.4 ug/kg 50.0 76.9 75-125 20.7 20 R cis-1,2-Dichloroethene 43.2 ug/kg 50.0 86.3 75-125 27.0 20 R Ethylbenzene 66.0 ug/kg 50.0 132 75-125 15.3 20 BS
Isopropylbenzene 51.4 ug/kg 50.0 103 75-125 0.508 20
n-Propylbenzene 48.6 ug/kg 50.0 97.2 75-125 1.12 20
Toluene (Methyl benzene) 61.2 ug/kg 50.0 122 75-125 15.3 20 1,1,1-Trichloroethane 48.2 ug/kg 50.0 96.3 75-125 8.83 20 1,1,2-Trichloroethane 62.0 ug/kg 50.0 124 75-125 14.3 20 Trichloroethene 60.3 ug/kg 50.0 121 75-125 15.8 20
1,2,4-Trimethylbenzene 49.9 ug/kg 50.0 99.7 75-125 2.46 20 1,3,5-Trimethylbenzene 51.0 ug/kg 50.0 102 75-125 1.90 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 111 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0296 - 5035A (Continued) Prepared: 06/23/2023 09:00 LCSD (B3F0296-BSD1) Analyzed: 06/24/2023 03:47
o-Xylene 49.8 ug/kg 50.0 99.6 75-125 0.382 20
m,p-Xylenes 101 ug/kg 100 101 75-125 0.626 20
Methyl-tert-butyl ether (MTBE) 44.1 ug/kg 50.0 88.2 75-125 24.3 20 R Surrogate: Bromofluorobenzene 52.3 ug/kg 50.0 105 75-125 Surrogate: Dibromofluoromethane 45.6 ug/kg 50.0 91.2 75-125 Surrogate: Toluene-d8 59.9 ug/kg 50.0 120 75-125
Matrix Spike (B3F0296-MS1) Source: BEF0196-26 Analyzed: 06/24/2023 12:54 Benzene 61.9 ug/kg 50.0 0.705 122 75-125
Carbon tetrachloride 60.3 ug/kg 50.0 0.00 121 75-125
Chlorobenzene 57.7 ug/kg 50.0 0.00 115 75-125
Chloroform (Trichloromethane) 61.2 ug/kg 50.0 0.00 122 75-125 1,2-Dichlorobenzene 46.4 ug/kg 50.0 0.00 92.7 75-125
1,1-Dichloroethane 61.1 ug/kg 50.0 0.00 122 75-125
1,1-Dichloroethene 57.0 ug/kg 50.0 0.00 114 75-125
cis-1,2-Dichloroethene 61.8 ug/kg 50.0 0.00 124 75-125
Ethylbenzene 62.8 ug/kg 50.0 0.00 126 75-125 M
Isopropylbenzene 58.1 ug/kg 50.0 0.00 116 75-125
n-Propylbenzene 54.5 ug/kg 50.0 0.00 109 75-125
Toluene (Methyl benzene) 58.8 ug/kg 50.0 0.336 117 75-125 1,1,1-Trichloroethane 60.0 ug/kg 50.0 0.00 120 75-125
1,1,2-Trichloroethane 49.5 ug/kg 50.0 0.00 99.0 75-125
Trichloroethene 60.5 ug/kg 50.0 0.00 121 75-125
1,2,4-Trimethylbenzene 56.4 ug/kg 50.0 0.00 113 75-125
1,3,5-Trimethylbenzene 57.4 ug/kg 50.0 0.00 115 75-125
o-Xylene 56.9 ug/kg 50.0 0.00 114 75-125
m,p-Xylenes 116 ug/kg 100 0.00 116 75-125
Methyl-tert-butyl ether (MTBE) 49.6 ug/kg 50.0 0.00 99.3 75-125 Surrogate: Bromofluorobenzene 50.7 ug/kg 50.0 101 75-125 Surrogate: Dibromofluoromethane 51.6 ug/kg 50.0 103 75-125 Surrogate: Toluene-d8 51.5 ug/kg 50.0 103 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 112 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0296 - 5035A (Continued) Prepared: 06/23/2023 09:00 Matrix Spike Dup (B3F0296-MSD1) Source: BEF0196-26 Analyzed: 06/24/2023 13:27 Benzene 59.9 ug/kg 50.0 0.705 118 75-125 3.28 20
Carbon tetrachloride 57.5 ug/kg 50.0 0.00 115 75-125 4.82 20 Chlorobenzene 54.4 ug/kg 50.0 0.00 109 75-125 5.78 20
Chloroform (Trichloromethane) 58.5 ug/kg 50.0 0.00 117 75-125 4.46 20 1,2-Dichlorobenzene 44.1 ug/kg 50.0 0.00 88.2 75-125 5.00 20 1,1-Dichloroethane 59.6 ug/kg 50.0 0.00 119 75-125 2.47 20 1,1-Dichloroethene 31.4 ug/kg 50.0 0.00 62.8 75-125 58.0 20 M, R cis-1,2-Dichloroethene 60.0 ug/kg 50.0 0.00 120 75-125 2.91 20 Ethylbenzene 59.3 ug/kg 50.0 0.00 119 75-125 5.64 20
Isopropylbenzene 55.0 ug/kg 50.0 0.00 110 75-125 5.44 20 n-Propylbenzene 51.5 ug/kg 50.0 0.00 103 75-125 5.64 20 Toluene (Methyl benzene) 55.8 ug/kg 50.0 0.336 111 75-125 5.21 20 1,1,1-Trichloroethane 56.8 ug/kg 50.0 0.00 114 75-125 5.47 20 1,1,2-Trichloroethane 47.6 ug/kg 50.0 0.00 95.2 75-125 3.91 20 Trichloroethene 56.6 ug/kg 50.0 0.00 113 75-125 6.59 20 1,2,4-Trimethylbenzene 52.7 ug/kg 50.0 0.00 105 75-125 6.75 20 1,3,5-Trimethylbenzene 53.9 ug/kg 50.0 0.00 108 75-125 6.18 20 o-Xylene 53.6 ug/kg 50.0 0.00 107 75-125 6.06 20
m,p-Xylenes 109 ug/kg 100 0.00 109 75-125 5.91 20
Methyl-tert-butyl ether (MTBE) 50.4 ug/kg 50.0 0.00 101 75-125 1.50 20 Surrogate: Bromofluorobenzene 51.3 ug/kg 50.0 103 75-125 Surrogate: Dibromofluoromethane 52.4 ug/kg 50.0 105 75-125 Surrogate: Toluene-d8 51.8 ug/kg 50.0 104 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 113 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
MDL
Batch: B3F0280 - 5035A Prepared: 06/22/2023 08:19
Method Blank (B3F0280-BLK1) Analyzed: 06/23/2023 09:29
TPH as Gasoline and Light HC.
(C4-C12)
ND 0.116 0.200 mg/kg
Surrogate: Bromofluorobenzene 51.9 ug/kg 50.0 104 75-120

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 114 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
Batch: B3F0280 - 5035A (Continued) Prepared: 06/22/2023 08:19 LCS (B3F0280-BS1) Analyzed: 06/22/2023 08:30
TPH as Gasoline and Light HC.
(C4-C12)

0.908 0.200 mg/kg 1.00 90.8 75-125
Surrogate: Bromofluorobenzene 51.9 ug/kg 50.0 104 75-120 LCSD (B3F0280-BSD1) Analyzed: 06/22/2023 09:11
TPH as Gasoline and Light HC.
(C4-C12)

0.889 0.200 mg/kg 1.00 88.9 75-125 2.14 15
Surrogate: Bromofluorobenzene 59.1 ug/kg 50.0 118 75-120 Matrix Spike (B3F0280-MS1) Source: BEF0201-01 Analyzed: 06/22/2023 20:48 TPH as Gasoline and Light HC.
(C4-C12)

0.958 0.200 0.116 mg/kg 1.00 ND 95.8 75-125
Surrogate: Bromofluorobenzene 57.0 ug/kg 50.0 114 75-120 Matrix Spike Dup (B3F0280-MSD1) Source: BEF0201-01 Analyzed: 06/22/2023 21:28 TPH as Gasoline and Light HC.
(C4-C12)

0.960 0.200 0.116 mg/kg 1.00 ND 96.0 75-125 NA 15
Surrogate: Bromofluorobenzene 56.4 ug/kg 50.0 113 75-120 Batch: B3F0281 - 5030B Prepared: 06/22/2023 08:24
Method Blank (B3F0281-BLK1) Analyzed: 06/22/2023 12:00
TPH as Gasoline and Light HC.
(C4-C12)
ND 0.00500 0.0100 mg/L
Surrogate: Bromofluorobenzene 48.6 ug/L 50.0 97.2 75-120

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 115 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
Batch: B3F0281 - 5030B (Continued) Prepared: 06/22/2023 08:24 LCS (B3F0281-BS1) Analyzed: 06/22/2023 09:08
TPH as Gasoline and Light HC.
(C4-C12)

0.475 0.0100 mg/L 0.500 94.9 75-125
Surrogate: Bromofluorobenzene 57.1 ug/L 50.0 114 75-120 LCSD (B3F0281-BSD1) Analyzed: 06/22/2023 09:50
TPH as Gasoline and Light HC.
(C4-C12)

0.481 0.0100 mg/L 0.500 96.2 75-125 1.35 15
Surrogate: Bromofluorobenzene 55.5 ug/L 50.0 111 75-120 Duplicate (B3F0281-DUP1) Source: BEF0189-01 Analyzed: 06/22/2023 13:27 TPH as Gasoline and Light HC.
(C4-C12)
ND 0.00500 0.0100 mg/L ND NA 15
Surrogate: Bromofluorobenzene 51.2 ug/L 50.0 102 75-120 Batch: B3F0356 - 5035A Prepared: 06/27/2023 01:31
Method Blank (B3F0356-BLK1) Analyzed: 06/27/2023 02:53
TPH as Gasoline and Light HC.
(C4-C12)
ND 0.116 0.200 mg/kg
Surrogate: Bromofluorobenzene 51.5 ug/kg 50.0 103 75-120

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 116 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
Batch: B3F0356 - 5035A (Continued) Prepared: 06/27/2023 01:31 LCS (B3F0356-BS1) Analyzed: 06/27/2023 01:31
TPH as Gasoline and Light HC.
(C4-C12)

0.957 0.200 mg/kg 1.00 95.7 75-125
Surrogate: Bromofluorobenzene 51.9 ug/kg 50.0 104 75-120 LCSD (B3F0356-BSD1) Analyzed: 06/27/2023 02:11
TPH as Gasoline and Light HC.
(C4-C12)

0.952 0.200 mg/kg 1.00 95.2 75-125 0.560 15
Surrogate: Bromofluorobenzene 54.0 ug/kg 50.0 108 75-120 Matrix Spike (B3F0356-MS1) Source: BEF0216-52 Analyzed: 06/27/2023 13:49 TPH as Gasoline and Light HC.
(C4-C12)

0.843 0.200 0.116 mg/kg 1.00 ND 84.3 75-125
Surrogate: Bromofluorobenzene 57.0 ug/kg 50.0 114 75-120 Matrix Spike Dup (B3F0356-MSD1) Source: BEF0216-52 Analyzed: 06/27/2023 14:30 TPH as Gasoline and Light HC.
(C4-C12)

0.848 0.200 0.116 mg/kg 1.00 ND 84.8 75-125 NA 15
Surrogate: Bromofluorobenzene 51.8 ug/kg 50.0 104 75-120

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 117 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Diesel Range (EPA 8015B TPH DRO/ORO)
MDL
Batch: B3F0337 - 3510C Prepared: 06/23/2023 17:59
Method Blank (B3F0337-BLK1) Analyzed: 06/26/2023 14:57
TPH as Diesel (C13-C22) ND 0.0123 0.100 mg/L
TPH as Heavy Hydrocarbons
(C23-40)
ND 0.0123 0.100 mg/L
TPH Total as Diesel and Heavy HC
(C13-C40)
ND 0.0123 0.100 mg/L
Surrogate: Chlorobenzene 186 mg/L 200 92.9 60-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 118 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Diesel Range (EPA 8015B TPH DRO/ORO)
Batch: B3F0337 - 3510C (Continued) Prepared: 06/23/2023 17:59 LCS (B3F0337-BS1) Analyzed: 06/26/2023 13:07
TPH as Diesel (C13-C22) 4.63 0.100 mg/L 5.00 92.5 75-125 Surrogate: Chlorobenzene 177 mg/L 200 88.3 60-125
LCSD (B3F0337-BSD1) Analyzed: 06/26/2023 14:07
TPH as Diesel (C13-C22) 4.67 0.100 mg/L 5.00 93.3 75-125 0.908 20 Surrogate: Chlorobenzene 171 mg/L 200 85.4 60-125
Batch: B3F0359 - 3550B Prepared: 06/27/2023 08:43
Method Blank (B3F0359-BLK1) Analyzed: 06/27/2023 18:09
TPH as Diesel (C13-C22) ND 1.62 10.0 mg/kg
TPH as Heavy Hydrocarbons
(C23-40)
ND 1.62 10.0 mg/kg
TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1.62 10.0 mg/kg
Surrogate: Chlorobenzene 92.4 mg/kg 100 92.4 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 119 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Diesel Range (EPA 8015B TPH DRO/ORO)
Batch: B3F0359 - 3550B (Continued) Prepared: 06/27/2023 08:43 LCS (B3F0359-BS1) Analyzed: 06/27/2023 14:41
TPH as Diesel (C13-C22) 2490 10.0 mg/kg 2500 99.7 75-125 Surrogate: Chlorobenzene 92.0 mg/kg 100 92.0 75-125
LCSD (B3F0359-BSD1) Analyzed: 06/27/2023 15:23
TPH as Diesel (C13-C22) 2500 10.0 mg/kg 2500 99.8 75-125 0.150 20 Surrogate: Chlorobenzene 92.0 mg/kg 100 92.0 75-125
Matrix Spike (B3F0359-MS1) Source: BEF0196-30 Analyzed: 06/27/2023 16:05 TPH as Diesel (C13-C22) 2480 1.62 10.0 mg/kg 2480 ND 99.8 75-125 Surrogate: Chlorobenzene 75.9 mg/kg 100 75.9 75-125
Matrix Spike Dup (B3F0359-MSD1) Source: BEF0196-30 Analyzed: 06/27/2023 16:47 TPH as Diesel (C13-C22) 2500 1.62 10.0 mg/kg 2470 ND 101 75-125 NA 20 Surrogate: Chlorobenzene 75.3 mg/kg 100 75.3 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 120 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Qualifiers and Definitions
Item Qualifiers
The recovery of this analyte in LCS and/or LCSD was outside control limit. Sample was accepted based on the remaining LCSand/or LCSD.

BS
Analyte was detected. However, the analyte concentration is an estimated value, which is between the Method Detection Limit (MDL) and the Reporting Limit (RL).

J
The spike recovery for this QC sample is outside of established control limits possibly due to sample matrix interference.

Laboratory Control Samples(LCS/LCSD) recovery were acceptable.

M
R The RPD was outside of QC acceptance limits due to possible matrix interference.

Item Definitions
% wt Percent Weight
%REC Percent Recovery
°F Degrees Fahrenheit
AETL American Environmental Testing Laboratory, LLC
C Carbon
CARB California Air Resources Board
COC Chain of Custody
3-methylphenol/4-methylphenol coelute and cannot be chromatographically separated. Due to this coeluting isomer pair phenomenon, the laboratory uses a single cresol (4-methylphenol) as calibration standard for 3-methylphenol/4-methylphenol.

Cresols
CRM Certified Reference Material
DI Deionized Water
DPD Department of Planning and Development
DRO Diesel Range Organics
Dup Duplicate
ELAP Environmental Laboratory Accreditation Program
EPA Environmental Protection Agency
GC/FID Gas Chromatography Flame Ionization Detection
GRO Gasoline Range Organics
HC Hydrocarbon
HEM Hexane Extractable Material
HMU Hazardous Material Unit
ICP/MS Inductively Coupled Plasma Mass Spectrometry
LACSD Los Angeles County Sanitation Districts
Laboratory Control Sample - A sample matrix, free from the analytes of interest, spiked with verified known amounts of analytes.

LCS
LCSD Laboratory Control Sample Duplicate - A replicate of Laboratory Control Sample.

LOQ Limit of Quantitation
Method Detection Limit - The minimum measured concentration of a substance that can be reported with 99% confidence.

MDL is statistically derived number which is specific for each instrument, each method and each compound.

MDL
mg/kg Miligrams per Kilogram
[TOC_1]Qualifiers and
Definitions[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 121 of 122 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 14:05
Project Number: [none]
AETL Job Number: BEF0196 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
mg/L Miligrams per Liter
ml/L/hr Milliliter per Liter per Hour
MRO Motor oil Range Organics
Matrix Spike - A sample prepared, taken through all sample preparation and analytical steps of the procedure and analyzed as an independent test results.

MS
MSD Matrix Spike Duplicate - A replicate of Matrix Spike Sample.

N No
ND Analyte is not detected below Method Detection Limit. ng/m3 Nanograms per cubic meter
NIOSH National Institute for Occupational Safety and Health nL/L Nanoliters per Liter
NTU Nephelometric Turbidity Units
Ohm-cm Ohms per centimeter
ORO Oil Range Organics
OSHA Occupational Safety and Health Administration
PCB Polychlorinated Biphenyl
ppb v Parts per billion by volume
ppmC Parts per million Carbon
PSU Practical Salinity Unit
Reporting Limit - The lowest concentration at which an analyte can be detected in a sample and its concentration can be reported with a specified degree of confidence, accuracy and precision. For usage at AETL, RL is equivalant to LOQ.

RL
RPD Relative Percent Difference
SIM Selective Ion Monitoring
SM Standard Method
SPLP Synthetic Precipitation Leaching Procedure
STLC Soluble Threshold Limit Concentration
TCLP Toxicity Characteristic Leaching Procedure
TPH Total Petroleum Hydrocarbons
TTLC Total Threshold Limit Concentrations
ug/kg Micrograms per Kilogram
ug/L Micrograms per Liter
ug/m3 Micrograms per cubic meter
WET Waste Extraction Test
Y Yes
ZHE Zero Headspace Extraction

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 122 of 122 BEF0216
[none]
AETL Job No:

Project Number:

Received Date: 06/22/2023
July 06, 2023
Weis Environmental LLC
Carlsbad, CA 92008
1938 Kellogg Ave. Ste 116
Dan Weis
Enclosed please find the results of analyses for samples which were analyzed as specified on the attached chain of custody. If you have any questions concerning this report, please do not hesitate to call.

Project Name:

Site: 5261 Arlington Avenue
Riverside, California
5261 Arlington Avenue
Telephone: (760) 672-6338
Attention:
[TOC_1]Cover
Letter[TOC]
Checked By: Approved By:

Project Manager
Hailley Coleman
Project Manager
Corey Jones

Table of Contents
Client Project Name: 5261 Arlington Avenue Project Number: [none] Work Order Number: BEF0216
AETL, AETL, LLC. 2840 N. Naomi Street, Burbank , CA 91504 • TEL: 818-845-8200 1 Cover Letter 1
2 Sample Condition on Receipt 3
3 Chain of Custody 4
4 Cooler Receipt Form 9
5 Case Narrative 10
6 Samples Received 11
7 Positive Hits Summary 35
8 Analytical Results 44
9 Quality Control Results 235
10 Qualifiers and Definitions 290

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
07/06/2023 17:07
Project Number: [none]
AETL Job Number: BEF0216 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Sample Condition on Receipt
Cooler ID: Default Cooler Temperature: 6.0 °C
Are the COCs Correct
Labels Legible
COC/Labels Agree
Sufficient Sample Volume
Sample Labels intact
Containers In Good Condition
Samples Preserved Properly
Sufficient Holding Time for all Tests
Received on Ice
Y
Y
Y
Y
Y
Y
Y
Y
Y
[TOC_1]Sample Condition on
Receipt[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 3 of 291

Cooler Receipt Form
20220906 Rev. 2.0

COOLER RECEIPT FORM
Client Name:

Project Name: Project No.:

AETL Job Number:

Date Received: Received by:

Carrier: Ö AETL Courier Ö ClientÖ GSLÖ FedEx Ö UPS ÖOthers:

Samples were received in: Ö Cooler (__________) Ö Other (Specify):

Sample Container Temperature: _______ °C IR Gun S/N: __________________ Type of sample containers: VOA, *ODVVERWWOHV:LGH PRXWKMDUV+'3(ERWWOHV Metal sleeves, Acetate sleeves, 5035 Kit: AETL or Client, Tedlar Bags, Summa Canister: 6L, 3L, 1L, Others (Specify): ____________________________________ How are samples preserved: Ö None, Ö Ice, Ö Blue Ice, Ö Dry Ice @ None, @ HNO3, @ NaOH, @ ZnOAc, @ HCl, @ Na2S2O3, @ MeOH, @ NaHSO4
 @ Other (Specify):

Yes No N/A Note or Comment

1. Are the COCs Correct?

2. Are Sample labels legible & indelible ink?

3. Do samples match the COC?

4. Are the required analyses clear?

5. Is there enough samples for required analysis?

6. Does cooler or samples have custody seal(s)?

7. Are sample containers in good condition?

8. Are samples preserved?

9. Are samples preserved properly for the
intended analysis?

10. Are the VOAs free of headspace? See footnote.

11. Are the jars free of headspace?
* = see note below. N/A = Not Applicable
PLEASE NOTE ALL SAMPLES WILL BE DISPOSED OF 30 DAYS AFTER RECEIVING DATE. IF

AETL IS INFORMED OTHERWISE, THERE WILL BE A STORAGE CHARGE PER SAMPLE PER MONTH FOR ANY SAMPLE HELD BEYOND 30 DAYS.

Example maximum headspace bubble size; acceptance criteria not to exceed 5-6 mm in diameter.

For headspace bubbles exceeding 6 mm in diameter, sample receiving will tag the VOA and notify the Project Manager.

The Project Manager will contact client for Analyze or Resample instructions.

Weis Environmental
5261 Arlington Ave
BEF0216
06/22/2023 Greta G
✔
✔

6.0 51941911MV
✔ ✔ ✔
✔ ✔
✔
✔
✔ ✔
✔
2 ✔
✔
✔
✔
✔

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
07/06/2023 17:07
Project Number: [none]
AETL Job Number: BEF0216 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Case Narrative
The following "Sample Received" Section summarizes the samples received and associated analyses requested as specified on the enclosed chain of custody.

Results as reported by the laboratory apply only to 1) the items tested, 2) as the samples are received, and 3) the accuracy of information provided. Information supplied by the customer that may affect validity of results and may be contained in this report include Project Name/Number, Site Location, Sample Locations, Sampling Dates/Times, Sample ID, Sample Preservation, Sample Matrix, Sample Properties, Field Blanks, Field Duplicates, Field Spikes, and Site Historical Data.

Accreditation applies only to the test methods listed on each scope of accreditation held by the laboratory; certifications held by the laboratory may not apply to results supplied in this report.

Unless otherwise noted, all results of soil and solid samples are based on wet weight.

No analytical non-conformances were encountered.

Qualifiers are noted in the report.
[TOC_1]Case Narrative[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 10 of 291 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
07/06/2023 17:07
Project Number: [none]
AETL Job Number: BEF0216 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
AETL received the following samples on 06/22/2023 with the following specifications BEF0216-01
Lab ID
Client ID
GW13
Sample Date
Matrix Quantity of Containers
Aqueous 4
Method Analyte Units TAT
06/21/2023 8:37
TPH as Diesel and Heavy Hydrocarbons Using mg/L 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/L 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/L 5
BEF0216-02
Lab ID
Client ID
B25-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/21/2023 9:00
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 BEF0216-03
Lab ID
Client ID
B25-5
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 9:08
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
[TOC_1]Samples
Received[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 11 of 291 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
07/06/2023 17:07
Project Number: [none]
AETL Job Number: BEF0216 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/22/2023 with the following specifications BEF0216-04
Lab ID
Client ID
B25-10
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 9:14
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0216-05
Lab ID
Client ID
B25-15
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 9:26
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0216-06
Lab ID
Client ID
B25-20
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 9:30
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 12 of 291 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
07/06/2023 17:07
Project Number: [none]
AETL Job Number: BEF0216 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/22/2023 with the following specifications BEF0216-07
Lab ID
Client ID
B23-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/21/2023 9:35
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 BEF0216-08
Lab ID
Client ID
B23-5
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 9:41
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0216-09
Lab ID
Client ID
B23-10
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 9:47
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 13 of 291 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
07/06/2023 17:07
Project Number: [none]
AETL Job Number: BEF0216 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/22/2023 with the following specifications BEF0216-10
Lab ID
Client ID
B23-15
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 9:52
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0216-11
Lab ID
Client ID
B23-20
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 10:07
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0216-12
Lab ID
Client ID
B21-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/21/2023 10:37
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 14 of 291 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
07/06/2023 17:07
Project Number: [none]
AETL Job Number: BEF0216 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/22/2023 with the following specifications BEF0216-13
Lab ID
Client ID
B21-5
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 10:39
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0216-14
Lab ID
Client ID
B21-10
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 10:46
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0216-15
Lab ID
Client ID
B21-15
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/21/2023 10:55
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5