FEIR - Appendix D - Hazards — Riverside City Council, September 17, 2024 (part 5 of 11)

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-11 (Aqueous)
GW1
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 8:27
Volatile Organic Compounds (Continued)
Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.5% 75-125 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Surrogate: Dibromofluoromethane 103% 75-125 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B Surrogate: Toluene-d8 99.1% 75-125 06/20/23 10:00 06/21/23 02:18 B3F0237 DK 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.00500 0.0100 mg/L 06/26/23 14:25 06/26/23 14:25 B3F0348 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.7% 75-120 06/26/23 14:25 06/26/23 14:25 B3F0348 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 21:28 B3F0263 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 21:28 B3F0263 TTN 3510C TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 21:28 B3F0263 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 93.3% 60-125 06/20/23 16:46 06/21/23 21:28 B3F0263 TTN 3510C

Page 37 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-12 (Aqueous)
EB-3
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 8:45
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Benzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B

Page 38 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-12 (Aqueous)
EB-3
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 8:45
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Styrene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B

Page 39 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-12 (Aqueous)
EB-3
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 8:45
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Surrogate: Dibromofluoromethane 104% 75-125 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B Surrogate: Toluene-d8 99.5% 75-125 06/20/23 10:00 06/21/23 03:22 B3F0237 DK 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.00500 0.0100 mg/L 06/26/23 14:25 06/26/23 15:51 B3F0348 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 87.7% 75-120 06/26/23 14:25 06/26/23 15:51 B3F0348 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 22:09 B3F0263 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 22:09 B3F0263 TTN 3510C TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 22:09 B3F0263 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 89.6% 60-125 06/20/23 16:46 06/21/23 22:09 B3F0263 TTN 3510C

Page 40 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-13 (Aqueous)
T.Blank-03
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Benzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B

Page 41 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-13 (Aqueous)
T.Blank-03
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Styrene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B

Page 42 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-13 (Aqueous)
T.Blank-03
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Surrogate: Dibromofluoromethane 104% 75-125 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B Surrogate: Toluene-d8 99.4% 75-125 06/20/23 10:00 06/21/23 03:55 B3F0237 DK 5030B

Page 43 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-14 (Aqueous)
GW2
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 9:23
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Benzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B

Page 44 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-14 (Aqueous)
GW2
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 9:23
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Styrene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Tetrachloroethene 0.810 J 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Trichlorofluoromethane 1.19 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Trichlorotrifluoroethane
(Freon-113)

1.44 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B

Page 45 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-14 (Aqueous)
GW2
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 9:23
Volatile Organic Compounds (Continued)
Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 98.4% 75-125 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Surrogate: Dibromofluoromethane 105% 75-125 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B Surrogate: Toluene-d8 98.7% 75-125 06/20/23 10:00 06/21/23 04:27 B3F0237 DK 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.00500 0.0100 mg/L 06/26/23 14:25 06/26/23 16:35 B3F0348 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 94.0% 75-120 06/26/23 14:25 06/26/23 16:35 B3F0348 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 23:31 B3F0263 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 23:31 B3F0263 TTN 3510C TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 23:31 B3F0263 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 90.2% 60-125 06/20/23 16:46 06/21/23 23:31 B3F0263 TTN 3510C

Page 46 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-15 (Aqueous)
GW4
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:10
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Benzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B

Page 47 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-15 (Aqueous)
GW4
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:10
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Styrene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Trichlorofluoromethane 1.29 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Trichlorotrifluoroethane
(Freon-113)

1.63 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B

Page 48 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-15 (Aqueous)
GW4
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:10
Volatile Organic Compounds (Continued)
Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.6% 75-125 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Surrogate: Dibromofluoromethane 105% 75-125 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B Surrogate: Toluene-d8 98.7% 75-125 06/20/23 10:00 06/21/23 04:59 B3F0237 DK 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.00500 0.0100 mg/L 06/26/23 14:25 06/26/23 17:18 B3F0348 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 119% 75-120 06/26/23 14:25 06/26/23 17:18 B3F0348 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/22/23 00:12 B3F0263 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/22/23 00:12 B3F0263 TTN 3510C TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/22/23 00:12 B3F0263 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 87.6% 60-125 06/20/23 16:46 06/22/23 00:12 B3F0263 TTN 3510C

Page 49 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-16 (Aqueous)
T.Blank-04
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Benzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B

Page 50 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-16 (Aqueous)
T.Blank-04
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Styrene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B

Page 51 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-16 (Aqueous)
T.Blank-04
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.9% 75-125 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Surrogate: Dibromofluoromethane 105% 75-125 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B Surrogate: Toluene-d8 98.8% 75-125 06/20/23 10:00 06/21/23 05:31 B3F0237 DK 5030B

Page 52 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-18 (Soil)
B04-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:45
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A

Page 53 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-18 (Soil)
B04-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:45
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A

Page 54 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-18 (Soil)
B04-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:45
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A Surrogate: Toluene-d8 100% 75-125 06/20/23 10:00 06/21/23 04:18 B3F0238 DA 5035A

Page 55 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-19 (Soil)
B04-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:49
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A

Page 56 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-19 (Soil)
B04-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:49
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A

Page 57 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-19 (Soil)
B04-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 10:49
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A Surrogate: Toluene-d8 99.9% 75-125 06/20/23 10:00 06/21/23 04:57 B3F0238 DA 5035A

Page 58 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-20 (Soil)
B94-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 12:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A

Page 59 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-20 (Soil)
B94-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 12:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A

Page 60 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-20 (Soil)
B94-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 12:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Surrogate: Dibromofluoromethane 101% 75-125 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A Surrogate: Toluene-d8 100% 75-125 06/20/23 10:00 06/21/23 05:36 B3F0238 DA 5035A

Page 61 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-21 (Aqueous)
GW5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:17
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Benzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B

Page 62 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-21 (Aqueous)
GW5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:17
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Styrene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Trichlorofluoromethane 1.15 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Trichlorotrifluoroethane
(Freon-113)

1.16 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B

Page 63 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-21 (Aqueous)
GW5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:17
Volatile Organic Compounds (Continued)
Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.5% 75-125 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Surrogate: Dibromofluoromethane 106% 75-125 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B Surrogate: Toluene-d8 98.3% 75-125 06/20/23 10:00 06/21/23 06:04 B3F0237 DK 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.00500 0.0100 mg/L 06/26/23 14:25 06/26/23 18:01 B3F0348 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-120 06/26/23 14:25 06/26/23 18:01 B3F0348 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/22/23 00:53 B3F0263 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/22/23 00:53 B3F0263 TTN 3510C TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/22/23 00:53 B3F0263 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 89.3% 60-125 06/20/23 16:46 06/22/23 00:53 B3F0263 TTN 3510C

Page 64 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-23 (Soil)
B05-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:52
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Benzene 1.42 J 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A

Page 65 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-23 (Soil)
B05-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:52
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A

Page 66 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-23 (Soil)
B05-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:52
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A Surrogate: Toluene-d8 101% 75-125 06/20/23 10:00 06/21/23 06:15 B3F0238 DA 5035A

Page 67 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-24 (Soil)
B05-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:58
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A

Page 68 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-24 (Soil)
B05-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:58
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A

Page 69 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0162-24 (Soil)
B05-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 11:58
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A Surrogate: Toluene-d8 100% 75-125 06/20/23 10:00 06/21/23 06:54 B3F0238 DA 5035A

Page 70 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0237 - 5030B Prepared: 06/20/2023 10:00
Method Blank (B3F0237-BLK1) Analyzed: 06/21/2023 01:46
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]

Page 71 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0237 - 5030B (Continued) Prepared: 06/20/2023 10:00 Method Blank (B3F0237-BLK1) Analyzed: 06/21/2023 01:46
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 50.8 ug/L 50.0 102 75-125 Surrogate: Dibromofluoromethane 52.0 ug/L 50.0 104 75-125 Surrogate: Toluene-d8 50.2 ug/L 50.0 100 75-125

Page 72 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0237 - 5030B (Continued) Prepared: 06/20/2023 10:00 LCS (B3F0237-BS1) Analyzed: 06/21/2023 00:09
Benzene 53.0 ug/L 50.0 106 75-125
Carbon tetrachloride 52.0 ug/L 50.0 104 75-125
Chlorobenzene 54.2 ug/L 50.0 108 75-125
Chloroform (Trichloromethane) 52.7 ug/L 50.0 105 75-125 1,2-Dichlorobenzene 46.0 ug/L 50.0 92.1 75-125
1,1-Dichloroethane 51.3 ug/L 50.0 103 75-125
1,1-Dichloroethene 49.0 ug/L 50.0 98.0 75-125
cis-1,2-Dichloroethene 53.8 ug/L 50.0 108 75-125
Ethylbenzene 57.4 ug/L 50.0 115 75-125
Isopropylbenzene 52.6 ug/L 50.0 105 75-125
n-Propylbenzene 50.5 ug/L 50.0 101 75-125
Toluene (Methyl benzene) 52.5 ug/L 50.0 105 75-125
1,1,1-Trichloroethane 51.6 ug/L 50.0 103 75-125
1,1,2-Trichloroethane 52.7 ug/L 50.0 105 75-125
Trichloroethene 52.8 ug/L 50.0 106 75-125
1,2,4-Trimethylbenzene 51.4 ug/L 50.0 103 75-125
1,3,5-Trimethylbenzene 52.7 ug/L 50.0 105 75-125
o-Xylene 50.5 ug/L 50.0 101 75-125
m,p-Xylenes 103 ug/L 100 103 75-125
Methyl-tert-butyl ether (MTBE) 52.4 ug/L 50.0 105 75-125 Surrogate: Bromofluorobenzene 51.4 ug/L 50.0 103 75-125 Surrogate: Dibromofluoromethane 50.2 ug/L 50.0 100 75-125 Surrogate: Toluene-d8 50.6 ug/L 50.0 101 75-125
LCSD (B3F0237-BSD1) Analyzed: 06/21/2023 00:41
Benzene 53.2 ug/L 50.0 106 75-125 0.377 20
Carbon tetrachloride 51.5 ug/L 50.0 103 75-125 1.04 20
Chlorobenzene 54.2 ug/L 50.0 108 75-125 0.0369 20
Chloroform (Trichloromethane) 53.0 ug/L 50.0 106 75-125 0.473 20 1,2-Dichlorobenzene 47.0 ug/L 50.0 93.9 75-125 2.00 20
1,1-Dichloroethane 51.2 ug/L 50.0 102 75-125 0.0780 20
1,1-Dichloroethene 48.6 ug/L 50.0 97.2 75-125 0.881 20
cis-1,2-Dichloroethene 53.8 ug/L 50.0 108 75-125 0.00 20 Ethylbenzene 57.0 ug/L 50.0 114 75-125 0.822 20
Isopropylbenzene 51.5 ug/L 50.0 103 75-125 1.94 20
n-Propylbenzene 49.0 ug/L 50.0 98.0 75-125 3.09 20
Toluene (Methyl benzene) 52.5 ug/L 50.0 105 75-125 0.133 20 1,1,1-Trichloroethane 51.2 ug/L 50.0 102 75-125 0.779 20 1,1,2-Trichloroethane 53.5 ug/L 50.0 107 75-125 1.53 20 Trichloroethene 53.1 ug/L 50.0 106 75-125 0.453 20
1,2,4-Trimethylbenzene 50.5 ug/L 50.0 101 75-125 1.86 20 1,3,5-Trimethylbenzene 51.7 ug/L 50.0 103 75-125 1.86 20

Page 73 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0237 - 5030B (Continued) Prepared: 06/20/2023 10:00 LCSD (B3F0237-BSD1) Analyzed: 06/21/2023 00:41
o-Xylene 50.1 ug/L 50.0 100 75-125 0.934 20
m,p-Xylenes 101 ug/L 100 101 75-125 1.54 20
Methyl-tert-butyl ether (MTBE) 54.0 ug/L 50.0 108 75-125 3.10 20 Surrogate: Bromofluorobenzene 50.8 ug/L 50.0 102 75-125 Surrogate: Dibromofluoromethane 50.3 ug/L 50.0 101 75-125 Surrogate: Toluene-d8 51.1 ug/L 50.0 102 75-125
Duplicate (B3F0237-DUP1) Source: BEF0162-12 Analyzed: 06/21/2023 02:50 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 51.0 ug/L 50.0 102 75-125 Surrogate: Dibromofluoromethane 52.8 ug/L 50.0 106 75-125 Surrogate: Toluene-d8 50.3 ug/L 50.0 101 75-125

Page 74 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0238 - 5035A Prepared: 06/20/2023 10:00
Method Blank (B3F0238-BLK1) Analyzed: 06/21/2023 00:24
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
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

Page 75 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0238 - 5035A (Continued) Prepared: 06/20/2023 10:00 Method Blank (B3F0238-BLK1) Analyzed: 06/21/2023 00:24
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
Surrogate: Bromofluorobenzene 50.1 ug/kg 50.0 100 75-125 Surrogate: Dibromofluoromethane 51.2 ug/kg 50.0 102 75-125 Surrogate: Toluene-d8 51.1 ug/kg 50.0 102 75-125

Page 76 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0238 - 5035A (Continued) Prepared: 06/20/2023 10:00 LCS (B3F0238-BS1) Analyzed: 06/20/2023 22:27
Benzene 53.4 ug/kg 50.0 107 75-125
Carbon tetrachloride 54.5 ug/kg 50.0 109 75-125
Chlorobenzene 53.3 ug/kg 50.0 107 75-125
Chloroform (Trichloromethane) 57.1 ug/kg 50.0 114 75-125 1,2-Dichlorobenzene 50.9 ug/kg 50.0 102 75-125
1,1-Dichloroethane 57.9 ug/kg 50.0 116 75-125
1,1-Dichloroethene 54.6 ug/kg 50.0 109 75-125
cis-1,2-Dichloroethene 55.6 ug/kg 50.0 111 75-125
Ethylbenzene 52.8 ug/kg 50.0 106 75-125
Isopropylbenzene 49.2 ug/kg 50.0 98.4 75-125
n-Propylbenzene 49.1 ug/kg 50.0 98.2 75-125
Toluene (Methyl benzene) 52.4 ug/kg 50.0 105 75-125
1,1,1-Trichloroethane 54.2 ug/kg 50.0 108 75-125
1,1,2-Trichloroethane 54.6 ug/kg 50.0 109 75-125
Trichloroethene 53.1 ug/kg 50.0 106 75-125
1,2,4-Trimethylbenzene 49.5 ug/kg 50.0 99.1 75-125
1,3,5-Trimethylbenzene 49.5 ug/kg 50.0 99.1 75-125
o-Xylene 53.8 ug/kg 50.0 108 75-125
m,p-Xylenes 106 ug/kg 100 106 75-125
Methyl-tert-butyl ether (MTBE) 58.2 ug/kg 50.0 116 75-125 Surrogate: Bromofluorobenzene 49.8 ug/kg 50.0 99.6 75-125 Surrogate: Dibromofluoromethane 52.4 ug/kg 50.0 105 75-125 Surrogate: Toluene-d8 48.9 ug/kg 50.0 97.7 75-125
LCSD (B3F0238-BSD1) Analyzed: 06/20/2023 23:06
Benzene 49.3 ug/kg 50.0 98.6 75-125 8.10 20
Carbon tetrachloride 49.5 ug/kg 50.0 99.1 75-125 9.57 20 Chlorobenzene 48.1 ug/kg 50.0 96.3 75-125 10.2 20
Chloroform (Trichloromethane) 51.7 ug/kg 50.0 103 75-125 9.89 20 1,2-Dichlorobenzene 46.6 ug/kg 50.0 93.1 75-125 8.95 20 1,1-Dichloroethane 51.8 ug/kg 50.0 104 75-125 11.1 20
1,1-Dichloroethene 49.7 ug/kg 50.0 99.3 75-125 9.57 20
cis-1,2-Dichloroethene 50.1 ug/kg 50.0 100 75-125 10.3 20 Ethylbenzene 48.0 ug/kg 50.0 95.9 75-125 9.72 20
Isopropylbenzene 45.3 ug/kg 50.0 90.7 75-125 8.19 20
n-Propylbenzene 45.1 ug/kg 50.0 90.2 75-125 8.51 20
Toluene (Methyl benzene) 47.7 ug/kg 50.0 95.3 75-125 9.42 20 1,1,1-Trichloroethane 49.3 ug/kg 50.0 98.7 75-125 9.44 20 1,1,2-Trichloroethane 49.8 ug/kg 50.0 99.6 75-125 9.31 20 Trichloroethene 48.6 ug/kg 50.0 97.2 75-125 8.89 20
1,2,4-Trimethylbenzene 45.4 ug/kg 50.0 90.9 75-125 8.59 20 1,3,5-Trimethylbenzene 45.5 ug/kg 50.0 90.9 75-125 8.57 20

Page 77 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0238 - 5035A (Continued) Prepared: 06/20/2023 10:00 LCSD (B3F0238-BSD1) Analyzed: 06/20/2023 23:06
o-Xylene 48.5 ug/kg 50.0 97.0 75-125 10.4 20
m,p-Xylenes 97.3 ug/kg 100 97.3 75-125 8.69 20
Methyl-tert-butyl ether (MTBE) 52.0 ug/kg 50.0 104 75-125 11.3 20 Surrogate: Bromofluorobenzene 49.7 ug/kg 50.0 99.5 75-125 Surrogate: Dibromofluoromethane 52.0 ug/kg 50.0 104 75-125 Surrogate: Toluene-d8 48.8 ug/kg 50.0 97.5 75-125
Matrix Spike (B3F0238-MS1) Source: BEF0162-03 Analyzed: 06/21/2023 07:33 Benzene 52.8 ug/kg 50.0 1.02 104 75-125
Carbon tetrachloride 54.0 ug/kg 50.0 0.00 108 75-125
Chlorobenzene 51.3 ug/kg 50.0 0.00 103 75-125
Chloroform (Trichloromethane) 57.2 ug/kg 50.0 0.00 114 75-125 1,2-Dichlorobenzene 48.2 ug/kg 50.0 0.00 96.5 75-125
1,1-Dichloroethane 57.0 ug/kg 50.0 0.00 114 75-125
1,1-Dichloroethene 52.6 ug/kg 50.0 0.00 105 75-125
cis-1,2-Dichloroethene 54.4 ug/kg 50.0 0.00 109 75-125
Ethylbenzene 51.6 ug/kg 50.0 0.00 103 75-125
Isopropylbenzene 47.6 ug/kg 50.0 0.00 95.2 75-125
n-Propylbenzene 47.2 ug/kg 50.0 0.00 94.4 75-125
Toluene (Methyl benzene) 50.9 ug/kg 50.0 0.578 101 75-125 1,1,1-Trichloroethane 53.7 ug/kg 50.0 0.00 107 75-125
1,1,2-Trichloroethane 48.7 ug/kg 50.0 0.00 97.4 75-125
Trichloroethene 51.6 ug/kg 50.0 0.00 103 75-125
1,2,4-Trimethylbenzene 48.0 ug/kg 50.0 0.00 96.0 75-125 1,3,5-Trimethylbenzene 48.3 ug/kg 50.0 0.00 96.7 75-125 o-Xylene 52.4 ug/kg 50.0 0.00 105 75-125
m,p-Xylenes 104 ug/kg 100 0.00 104 75-125
Methyl-tert-butyl ether (MTBE) 52.2 ug/kg 50.0 0.00 104 75-125 Surrogate: Bromofluorobenzene 49.6 ug/kg 50.0 99.1 75-125 Surrogate: Dibromofluoromethane 52.5 ug/kg 50.0 105 75-125 Surrogate: Toluene-d8 48.5 ug/kg 50.0 97.0 75-125

Page 78 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0238 - 5035A (Continued) Prepared: 06/20/2023 10:00 Matrix Spike Dup (B3F0238-MSD1) Source: BEF0162-03 Analyzed: 06/21/2023 08:12 Benzene 49.2 ug/kg 50.0 1.02 96.3 75-125 7.18 20
Carbon tetrachloride 49.0 ug/kg 50.0 0.00 98.0 75-125 9.74 20 Chlorobenzene 47.2 ug/kg 50.0 0.00 94.5 75-125 8.30 20
Chloroform (Trichloromethane) 52.0 ug/kg 50.0 0.00 104 75-125 9.50 20 1,2-Dichlorobenzene 43.3 ug/kg 50.0 0.00 86.6 75-125 10.8 20 1,1-Dichloroethane 52.8 ug/kg 50.0 0.00 106 75-125 7.73 20 1,1-Dichloroethene 49.1 ug/kg 50.0 0.00 98.2 75-125 6.85 20 cis-1,2-Dichloroethene 50.1 ug/kg 50.0 0.00 100 75-125 8.15 20 Ethylbenzene 47.3 ug/kg 50.0 0.00 94.7 75-125 8.71 20
Isopropylbenzene 44.6 ug/kg 50.0 0.00 89.2 75-125 6.51 20 n-Propylbenzene 43.4 ug/kg 50.0 0.00 86.8 75-125 8.34 20 Toluene (Methyl benzene) 46.8 ug/kg 50.0 0.578 92.5 75-125 8.25 20 1,1,1-Trichloroethane 49.9 ug/kg 50.0 0.00 99.8 75-125 7.39 20 1,1,2-Trichloroethane 44.2 ug/kg 50.0 0.00 88.4 75-125 9.69 20 Trichloroethene 47.9 ug/kg 50.0 0.00 95.9 75-125 7.47 20 1,2,4-Trimethylbenzene 44.3 ug/kg 50.0 0.00 88.6 75-125 8.02 20 1,3,5-Trimethylbenzene 44.3 ug/kg 50.0 0.00 88.6 75-125 8.74 20 o-Xylene 48.3 ug/kg 50.0 0.00 96.5 75-125 8.21 20
m,p-Xylenes 94.6 ug/kg 100 0.00 94.6 75-125 9.90 20
Methyl-tert-butyl ether (MTBE) 47.4 ug/kg 50.0 0.00 94.7 75-125 9.64 20 Surrogate: Bromofluorobenzene 50.5 ug/kg 50.0 101 75-125 Surrogate: Dibromofluoromethane 51.5 ug/kg 50.0 103 75-125 Surrogate: Toluene-d8 49.0 ug/kg 50.0 98.0 75-125

Page 79 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0223 - 5035A Prepared: 06/19/2023 09:36
Method Blank (B3F0223-BLK1) Analyzed: 06/19/2023 12:19
TPH as Gasoline and Light HC.
(C4-C12)
ND 0.116 0.200 mg/kg
Surrogate: Bromofluorobenzene 51.4 ug/kg 50.0 103 75-120

Page 80 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0223 - 5035A (Continued) Prepared: 06/19/2023 09:36 LCS (B3F0223-BS1) Analyzed: 06/19/2023 09:36
TPH as Gasoline and Light HC.
(C4-C12)

0.854 0.200 mg/kg 1.00 85.4 75-125
Surrogate: Bromofluorobenzene 52.2 ug/kg 50.0 104 75-120 LCSD (B3F0223-BSD1) Analyzed: 06/19/2023 10:17
TPH as Gasoline and Light HC.
(C4-C12)

0.853 0.200 mg/kg 1.00 85.3 75-125 0.0300 15
Surrogate: Bromofluorobenzene 57.5 ug/kg 50.0 115 75-120 Matrix Spike (B3F0223-MS1) Source: BEF0160-01 Analyzed: 06/19/2023 23:53 TPH as Gasoline and Light HC.
(C4-C12)

0.820 0.200 0.116 mg/kg 1.00 ND 82.0 75-125
Surrogate: Bromofluorobenzene 54.4 ug/kg 50.0 109 75-120 Matrix Spike Dup (B3F0223-MSD1) Source: BEF0160-01 Analyzed: 06/20/2023 00:34 TPH as Gasoline and Light HC.
(C4-C12)

0.824 0.200 0.116 mg/kg 1.00 ND 82.4 75-125 NA 15
Surrogate: Bromofluorobenzene 53.5 ug/kg 50.0 107 75-120 Batch: B3F0339 - 5030 Prepared: 06/26/2023 09:00
Method Blank (B3F0339-BLK1) Analyzed: 06/26/2023 12:32
TPH as Gasoline and Light HC.
(C4-C12)
ND 0.116 0.200 mg/kg
Surrogate: Bromofluorobenzene 52.1 ug/kg 50.0 104 75-120

Page 81 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0339 - 5030 (Continued) Prepared: 06/26/2023 09:00 LCS (B3F0339-BS1) Analyzed: 06/26/2023 09:49
TPH as Gasoline and Light HC.
(C4-C12)

0.996 0.200 mg/kg 1.00 99.6 75-125
Surrogate: Bromofluorobenzene 59.3 ug/kg 50.0 119 75-120 LCSD (B3F0339-BSD1) Analyzed: 06/26/2023 10:30
TPH as Gasoline and Light HC.
(C4-C12)

0.999 0.200 mg/kg 1.00 99.9 75-125 0.287 15
Surrogate: Bromofluorobenzene 52.5 ug/kg 50.0 105 75-120 Matrix Spike (B3F0339-MS1) Source: BEF0193-09 Analyzed: 06/26/2023 23:28 TPH as Gasoline and Light HC.
(C4-C12)

0.946 0.200 0.116 mg/kg 1.00 ND 94.6 75-125
Surrogate: Bromofluorobenzene 59.1 ug/kg 50.0 118 75-120 Matrix Spike Dup (B3F0339-MSD1) Source: BEF0193-09 Analyzed: 06/27/2023 00:10 TPH as Gasoline and Light HC.
(C4-C12)

0.952 0.200 0.116 mg/kg 1.00 ND 95.2 75-125 NA 15
Surrogate: Bromofluorobenzene 53.3 ug/kg 50.0 107 75-120 Batch: B3F0348 - 5030B Prepared: 06/26/2023 12:15
LCS (B3F0348-BS1) Analyzed: 06/26/2023 12:15
TPH as Gasoline and Light HC.
(C4-C12)

0.486 0.0100 mg/L 0.500 97.1 75-125
Surrogate: Bromofluorobenzene 42.8 ug/L 50.0 85.6 75-120 LCSD (B3F0348-BSD1) Analyzed: 06/26/2023 12:58
TPH as Gasoline and Light HC.
(C4-C12)

0.488 0.0100 mg/L 0.500 97.7 75-125 0.533 15
Surrogate: Bromofluorobenzene 54.3 ug/L 50.0 109 75-120

Page 82 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Page 83 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0263 - 3510C (Continued) Prepared: 06/20/2023 16:46 LCS (B3F0263-BS1) Analyzed: 06/21/2023 14:48
TPH as Diesel (C13-C22) 4.86 0.100 mg/L 5.00 97.2 75-125 Surrogate: Chlorobenzene 172 mg/L 200 85.8 60-125
LCSD (B3F0263-BSD1) Analyzed: 06/21/2023 15:37
TPH as Diesel (C13-C22) 4.87 0.100 mg/L 5.00 97.4 75-125 0.198 20 Surrogate: Chlorobenzene 168 mg/L 200 83.9 60-125
Batch: B3F0301 - 3550B Prepared: 06/22/2023 11:28
Method Blank (B3F0301-BLK1) Analyzed: 06/22/2023 22:57
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 98.6 mg/kg 100 98.6 75-125

Page 84 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 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: B3F0301 - 3550B (Continued) Prepared: 06/22/2023 11:28 LCS (B3F0301-BS1) Analyzed: 06/22/2023 20:11
TPH as Diesel (C13-C22) 2490 10.0 mg/kg 2500 99.6 75-125 Surrogate: Chlorobenzene 107 mg/kg 100 107 75-125
LCSD (B3F0301-BSD1) Analyzed: 06/22/2023 20:53
TPH as Diesel (C13-C22) 2480 10.0 mg/kg 2500 99.4 75-125 0.232 20 Surrogate: Chlorobenzene 104 mg/kg 100 104 75-125
Matrix Spike (B3F0301-MS1) Source: BEF0169-22 Analyzed: 06/22/2023 21:34 TPH as Diesel (C13-C22) 2490 1.62 10.0 mg/kg 2500 ND 99.5 75-125 Surrogate: Chlorobenzene 88.1 mg/kg 100 88.1 75-125
Matrix Spike Dup (B3F0301-MSD1) Source: BEF0169-22 Analyzed: 06/22/2023 22:16 TPH as Diesel (C13-C22) 2470 1.62 10.0 mg/kg 2480 ND 99.5 75-125 NA 20 Surrogate: Chlorobenzene 86.4 mg/kg 100 86.4 75-125

Page 85 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Qualifiers and Definitions
Item Qualifiers
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
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
mg/L Miligrams per Liter
ml/L/hr Milliliter per Liter per Hour
MRO Motor oil Range Organics
[TOC_1]Qualifiers and
Definitions[TOC]

Page 86 of 87 ends

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 88 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/29/2023 12:22
Project Number: [none]
AETL Job Number: BEF0162 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
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

Page 87 of 87 ends

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 88 BEF0172
[none]
AETL Job No:

Project Number:

Received Date: 06/19/2023
June 27, 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

Page 1 of 123 ends

Table of Contents
Client Project Name: 5261 Arlington Avenue Project Number: [none] Work Order Number: BEF0172
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 7
5 Case Narrative 8
6 Samples Received 9
7 Positive Hits Summary 19
8 Analytical Results 20
9 Quality Control Results 98
10 Qualifiers and Definitions 122

Page 2 of 123 ends

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 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]

Page 3 of 121 ends

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 123

Page 4 of 123 ends

Page 5 of 123 ends

Page 6 of 123 ends

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
BEF0172
06/19/2023 Jessica A
✔
✔

6.0 51941911MV
✔ ✔
✔ ✔
✔
✔
✔
✔
✔
1 Sodiumbisulfate
✔
✔
✔
✔
✔

Page 7 of 123 ends

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 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]

Page 6 of 121 ends

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 8 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
AETL received the following samples on 06/19/2023 with the following specifications BEF0172-01
Lab ID
Client ID
TBlank-05
Sample Date
Matrix Quantity of Containers
Aqueous 2
Method Analyte Units TAT
06/16/2023 0:00
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/L 5
BEF0172-02
Lab ID
Client ID
EB-4
Sample Date
Matrix Quantity of Containers
Aqueous 4
Method Analyte Units TAT
06/19/2023 8:35
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
BEF0172-03
Lab ID
Client ID
B06-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/16/2023 13:05
Archive Sample On Hold N/A 0
BEF0172-04
Lab ID
Client ID
B06-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/16/2023 13:11
[TOC_1]Samples
Received[TOC]

Page 7 of 121 ends

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 9 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-05
Lab ID
Client ID
B06-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/16/2023 13:30
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-06
Lab ID
Client ID
B10-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/16/2023 13:48
Archive Sample On Hold N/A 0
BEF0172-07
Lab ID
Client ID
B10-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/16/2023 13:52
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-08
Lab ID
Client ID
B10-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/16/2023 13:56

Page 8 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-09
Lab ID
Client ID
B11-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/16/2023 14:10
Archive Sample On Hold N/A 0
BEF0172-10
Lab ID
Client ID
B11-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/16/2023 14:14
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-11
Lab ID
Client ID
B11-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/16/2023 14:17
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-12
Lab ID
Client ID
B31-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 8:52

Page 9 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications Archive Sample On Hold N/A 0
BEF0172-13
Lab ID
Client ID
B31-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 8:56
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-14
Lab ID
Client ID
B31-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 9:01
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-15
Lab ID
Client ID
B32-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 9:34
Archive Sample On Hold N/A 0
BEF0172-16
Lab ID
Client ID
B32-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 9:37

Page 10 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-17
Lab ID
Client ID
B32-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 9:42
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-18
Lab ID
Client ID
B33-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 9:59
Archive Sample On Hold N/A 0
BEF0172-19
Lab ID
Client ID
B33-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 10:03
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-20
Lab ID
Client ID
B33-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 10:12

Page 11 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-21
Lab ID
Client ID
B35-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 10:38
Archive Sample On Hold N/A 0
BEF0172-22
Lab ID
Client ID
B35-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 10:40
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-23
Lab ID
Client ID
B35-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 10:47
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-24
Lab ID
Client ID
B42-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 11:12

Page 12 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications Archive Sample On Hold N/A 0
BEF0172-25
Lab ID
Client ID
B42-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 11:16
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-26
Lab ID
Client ID
B42-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 11:20
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-27
Lab ID
Client ID
B95-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 12:00
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-28
Lab ID
Client ID
B43-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 11:42

Page 13 of 121 ends

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 15 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications Archive Sample On Hold N/A 0
BEF0172-29
Lab ID
Client ID
B43-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 11:44
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-30
Lab ID
Client ID
B43-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 11:56
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-31
Lab ID
Client ID
B47-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 13:07
Archive Sample On Hold N/A 0
BEF0172-32
Lab ID
Client ID
B47-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 13:10

Page 14 of 121 ends

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 16 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/19/2023 with the following specifications EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-33
Lab ID
Client ID
B47-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 13:14
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-34
Lab ID
Client ID
B96-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 12:00
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0172-35
Lab ID
Client ID
B44-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 13:30
Archive Sample On Hold N/A 0
BEF0172-36
Lab ID
Client ID
B44-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 13:35

Page 15 of 121 ends

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 17 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Page 16 of 121 ends

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 18 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Positive Hits Summary
BEF0172-04 B06-5
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/16/2023 13:11
Sampled
EPA 8260B Benzene 3.01 J ug/kg 06/21/2023 13:44
EPA 8260B Toluene (Methyl benzene) 1.47 J ug/kg 06/21/2023 13:44 BEF0172-07 B10-5
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/16/2023 13:52
Sampled
EPA 8260B Benzene 1.37 J ug/kg 06/21/2023 15:03
BEF0172-10 B11-5
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/16/2023 14:14
Sampled
EPA 8260B Benzene 1.20 J ug/kg 06/21/2023 16:21
BEF0172-37 B44-15
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/19/2023 13:39
Sampled
EPA 8260B Benzene 2.23 J ug/kg 06/23/2023 08:26
EPA 8260B Toluene (Methyl benzene) 1.31 J ug/kg 06/23/2023 08:26 [TOC_1]Positive Hits
Summary[TOC]

Page 17 of 121 ends

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 19 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-01 (Aqueous)
TBlank-05
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Benzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B [TOC_1]Analytical
Results[TOC]

Page 18 of 121 ends

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 20 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-01 (Aqueous)
TBlank-05
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Styrene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B

Page 19 of 121 ends

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 21 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-01 (Aqueous)
TBlank-05
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 0:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.3% 75-125 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Surrogate: Dibromofluoromethane 103% 75-125 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B Surrogate: Toluene-d8 98.2% 75-125 06/21/23 11:30 06/22/23 04:08 B3F0240 DA 5030B

Page 20 of 121 ends

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 22 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-02 (Aqueous)
EB-4
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 8:35
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Benzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B

Page 21 of 121 ends

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 23 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-02 (Aqueous)
EB-4
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 8:35
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Styrene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B

Page 22 of 121 ends

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 24 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-02 (Aqueous)
EB-4
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 8:35
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Surrogate: Dibromofluoromethane 102% 75-125 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B Surrogate: Toluene-d8 99.2% 75-125 06/21/23 11:30 06/22/23 04:47 B3F0240 DA 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.00500 0.0100 mg/L 06/20/23 10:47 06/20/23 16:33 B3F0244 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 90.6% 75-120 06/20/23 10:47 06/20/23 16:33 B3F0244 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 17:54 B3F0263 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 17:54 B3F0263 TTN 3510C TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 0.0123 0.100 mg/L 06/20/23 16:46 06/21/23 17:54 B3F0263 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 92.7% 60-125 06/20/23 16:46 06/21/23 17:54 B3F0263 TTN 3510C

Page 23 of 121 ends

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 25 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-04 (Soil)
B06-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:11
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Benzene 3.01 J 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A

Page 24 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-04 (Soil)
B06-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:11
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Toluene (Methyl benzene) 1.47 J 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A

Page 25 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-04 (Soil)
B06-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:11
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.2% 75-125 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 102% 75-125 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A Surrogate: Toluene-d8 100% 75-125 06/21/23 09:00 06/21/23 13:44 B3F0269 DA 5035A

Page 26 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-05 (Soil)
B06-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:30
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A

Page 27 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-05 (Soil)
B06-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:30
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A

Page 28 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-05 (Soil)
B06-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:30
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 102% 75-125 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A Surrogate: Toluene-d8 101% 75-125 06/21/23 09:00 06/21/23 14:24 B3F0269 DA 5035A

Page 29 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-07 (Soil)
B10-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:52
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Benzene 1.37 J 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A

Page 30 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-07 (Soil)
B10-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:52
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A

Page 31 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-07 (Soil)
B10-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:52
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 102% 75-125 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A Surrogate: Toluene-d8 101% 75-125 06/21/23 09:00 06/21/23 15:03 B3F0269 DA 5035A

Page 32 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-08 (Soil)
B10-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:56
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A

Page 33 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-08 (Soil)
B10-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:56
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A

Page 34 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-08 (Soil)
B10-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 13:56
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.6% 75-125 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 102% 75-125 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A Surrogate: Toluene-d8 101% 75-125 06/21/23 09:00 06/21/23 15:42 B3F0269 DA 5035A

Page 35 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-10 (Soil)
B11-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 14:14
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Benzene 1.20 J 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A

Page 36 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-10 (Soil)
B11-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 14:14
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A

Page 37 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-10 (Soil)
B11-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 14:14
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 102% 75-125 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A Surrogate: Toluene-d8 100% 75-125 06/21/23 09:00 06/21/23 16:21 B3F0269 DA 5035A

Page 38 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-11 (Soil)
B11-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 14:17
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A

Page 39 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-11 (Soil)
B11-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 14:17
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A

Page 40 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-11 (Soil)
B11-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/16/23 14:17
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.0% 75-125 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 100% 75-125 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A Surrogate: Toluene-d8 101% 75-125 06/21/23 09:00 06/21/23 17:01 B3F0269 DA 5035A

Page 41 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-13 (Soil)
B31-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 8:56
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A

Page 42 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-13 (Soil)
B31-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 8:56
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A

Page 43 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-13 (Soil)
B31-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 8:56
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 97.9% 75-125 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A Surrogate: Toluene-d8 99.5% 75-125 06/21/23 09:00 06/21/23 17:40 B3F0269 DA 5035A

Page 44 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-14 (Soil)
B31-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:01
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A

Page 45 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-14 (Soil)
B31-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:01
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A

Page 46 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-14 (Soil)
B31-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:01
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A Surrogate: Toluene-d8 99.5% 75-125 06/21/23 09:00 06/21/23 18:19 B3F0269 DA 5035A

Page 47 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-16 (Soil)
B32-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:37
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A

Page 48 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-16 (Soil)
B32-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:37
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A

Page 49 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-16 (Soil)
B32-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:37
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-125 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 104% 75-125 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A Surrogate: Toluene-d8 99.7% 75-125 06/21/23 09:00 06/21/23 18:58 B3F0269 DA 5035A

Page 50 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-17 (Soil)
B32-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:42
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A

Page 51 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-17 (Soil)
B32-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:42
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A

Page 52 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-17 (Soil)
B32-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:42
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.4% 75-125 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A Surrogate: Toluene-d8 98.4% 75-125 06/21/23 09:00 06/21/23 19:38 B3F0269 DA 5035A

Page 53 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-19 (Soil)
B33-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:03
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A

Page 54 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-19 (Soil)
B33-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:03
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A

Page 55 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-19 (Soil)
B33-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:03
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.9% 75-125 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 104% 75-125 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A Surrogate: Toluene-d8 98.6% 75-125 06/21/23 09:00 06/21/23 20:17 B3F0269 DA 5035A

Page 56 of 121 ends

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 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-20 (Soil)
B33-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:12
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A

Page 57 of 121 ends

Riverside City CouncilSeptember 17, 2024

Riverside City Council
September 17, 2024