Attachment 3.8.1 - Appendix H1 Phase I Environmental Site Assessment Parcel A.pdf — Chula Vista City Council, November 18, 2025 (part 9 of 24)

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15 Client Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-022-10 Lab Sample ID: 570-87413-27 Date Collected: 03/09/22 15:44 Matrix: Solid
Date Received: 03/09/22 18:30
RL MDL
Naphthalene ND 10 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac n-Butylbenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 N-Propylbenzene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 o-Xylene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1
m,p-Xylene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 p-Isopropyltoluene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 sec-Butylbenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 Styrene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1
trans-1,2-Dichloroethene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 tert-Butylbenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 Tetrachloroethene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 Toluene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1
Trichloroethene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 Trichlorofluoromethane ND 10 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 Vinyl acetate ND 10 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 Vinyl chloride ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 20:14 1 1,2-Dichloroethane-d4 (Surr) 103 64 - 141 03/16/22 10:18 03/16/22 20:14 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 105 76 - 120 03/16/22 10:18 03/16/22 20:14 1 Dibromofluoromethane (Surr) 94 47 - 142 03/16/22 10:18 03/16/22 20:14 1 Toluene-d8 (Surr) 108 80 - 120 03/16/22 10:18 03/16/22 20:14 1 Client Sample ID: Trip Blank Lab Sample ID: 570-87413-28 Date Collected: 03/09/22 00:00 Matrix: Water
Date Received: 03/09/22 18:30
RL MDL
1,1,1,2-Tetrachloroethane ND 2.0 ug/L 03/21/22 22:47 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/L 03/21/22 22:47 1
1,1,2,2-Tetrachloroethane ND 1.0 ug/L 03/21/22 22:47 1
1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/L 03/21/22 22:47 1 1,1,2-Trichloroethane ND 1.0 ug/L 03/21/22 22:47 1
1,1-Dichloroethane ND 1.0 ug/L 03/21/22 22:47 1
1,1-Dichloroethene ND 1.0 ug/L 03/21/22 22:47 1
1,1-Dichloropropene ND 1.0 ug/L 03/21/22 22:47 1
1,2,3-Trichlorobenzene ND 1.0 ug/L 03/21/22 22:47 1
1,2,3-Trichloropropane ND 5.0 ug/L 03/21/22 22:47 1
1,2,4-Trichlorobenzene ND 1.0 ug/L 03/21/22 22:47 1
1,2,4-Trimethylbenzene ND 1.0 ug/L 03/21/22 22:47 1
1,2-Dibromo-3-Chloropropane ND 10 ug/L 03/21/22 22:47 1 1,2-Dibromoethane ND 1.0 ug/L 03/21/22 22:47 1
1,2-Dichlorobenzene ND 1.0 ug/L 03/21/22 22:47 1
1,2-Dichloroethane ND 0.50 ug/L 03/21/22 22:47 1
1,2-Dichloropropane ND 1.0 ug/L 03/21/22 22:47 1
1,3,5-Trimethylbenzene ND 1.0 ug/L 03/21/22 22:47 1
1,3-Dichlorobenzene ND 1.0 ug/L 03/21/22 22:47 1
1,3-Dichloropropane ND 1.0 ug/L 03/21/22 22:47 1
1,4-Dichlorobenzene ND 1.0 ug/L 03/21/22 22:47 1
2,2-Dichloropropane ND 1.0 ug/L 03/21/22 22:47 1
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15 Client Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: Trip Blank Lab Sample ID: 570-87413-28 Date Collected: 03/09/22 00:00 Matrix: Water
Date Received: 03/09/22 18:30
RL MDL
2-Butanone ND 20 ug/L 03/21/22 22:47 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2-Chlorotoluene ND 1.0 ug/L 03/21/22 22:47 1
2-Hexanone ND 10 ug/L 03/21/22 22:47 1
4-Chlorotoluene ND 1.0 ug/L 03/21/22 22:47 1
4-Methyl-2-pentanone ND 10 ug/L 03/21/22 22:47 1
Acetone ND 20 ug/L 03/21/22 22:47 1
Benzene ND 0.50 ug/L 03/21/22 22:47 1
Bromobenzene ND 1.0 ug/L 03/21/22 22:47 1
Bromochloromethane ND 2.0 ug/L 03/21/22 22:47 1
Bromodichloromethane ND 1.0 ug/L 03/21/22 22:47 1
Bromoform ND *+ 5.0 ug/L 03/21/22 22:47 1
Bromomethane ND 25 ug/L 03/21/22 22:47 1
cis-1,2-Dichloroethene ND 1.0 ug/L 03/21/22 22:47 1
cis-1,3-Dichloropropene ND 0.50 ug/L 03/21/22 22:47 1
Carbon disulfide ND 10 ug/L 03/21/22 22:47 1
Carbon tetrachloride ND 0.50 ug/L 03/21/22 22:47 1
Chlorobenzene ND 1.0 ug/L 03/21/22 22:47 1
Chloroethane ND 5.0 ug/L 03/21/22 22:47 1
Chloroform ND 1.0 ug/L 03/21/22 22:47 1
Chloromethane ND 10 ug/L 03/21/22 22:47 1
Dibromochloromethane ND 2.0 ug/L 03/21/22 22:47 1
Dibromomethane ND 1.0 ug/L 03/21/22 22:47 1
Dichlorodifluoromethane ND *+ 5.0 ug/L 03/21/22 22:47 1 Ethylbenzene ND 1.0 ug/L 03/21/22 22:47 1
Isopropylbenzene ND 1.0 ug/L 03/21/22 22:47 1
Methylene Chloride ND 10 ug/L 03/21/22 22:47 1
Methyl-t-Butyl Ether (MTBE) ND 1.0 ug/L 03/21/22 22:47 1 Naphthalene ND 10 ug/L 03/21/22 22:47 1
n-Butylbenzene ND 1.0 ug/L 03/21/22 22:47 1
N-Propylbenzene ND 1.0 ug/L 03/21/22 22:47 1
o-Xylene ND 1.0 ug/L 03/21/22 22:47 1
m,p-Xylene ND 2.0 ug/L 03/21/22 22:47 1
p-Isopropyltoluene ND 1.0 ug/L 03/21/22 22:47 1
sec-Butylbenzene ND 1.0 ug/L 03/21/22 22:47 1
Styrene ND 1.0 ug/L 03/21/22 22:47 1
trans-1,2-Dichloroethene ND 1.0 ug/L 03/21/22 22:47 1
trans-1,3-Dichloropropene ND 0.50 ug/L 03/21/22 22:47 1 tert-Butylbenzene ND 1.0 ug/L 03/21/22 22:47 1
Tetrachloroethene ND 1.0 ug/L 03/21/22 22:47 1
Toluene ND 1.0 ug/L 03/21/22 22:47 1
Trichloroethene ND 1.0 ug/L 03/21/22 22:47 1
Trichlorofluoromethane ND 10 ug/L 03/21/22 22:47 1
Vinyl acetate ND 10 ug/L 03/21/22 22:47 1
Vinyl chloride ND 0.50 ug/L 03/21/22 22:47 1
1,2-Dichloroethane-d4 (Surr) 103 70 - 123 03/21/22 22:47 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 95 80 - 120 03/21/22 22:47 1 Dibromofluoromethane (Surr) 100 78 - 120 03/21/22 22:47 1 Toluene-d8 (Surr) 99 80 - 120 03/21/22 22:47 1
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15 Surrogate Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (64-141) (76-120) (47-142) (80-120)

DCA BFB DBFM TOL
570-87413-1 99 99 102 98
Percent Surrogate Recovery (Acceptance Limits)
DGA-013-1
570-87413-2 DGA-013-5 102 99 102 98
570-87413-3 DGA-013-10 107 99 108 101
570-87413-4 DGA-015-1 100 97 102 96
570-87413-5 DGA-015-5 108 100 106 98
570-87413-6 DGA-015-10 101 101 103 98
570-87413-7 DGA-014-3.5 102 97 105 99
570-87413-8 DGA-014-5 105 99 106 97
570-87413-9 DGA-014-10 104 99 105 97
570-87413-11 DGA-016-1 91 100 89 101
570-87413-12 DGA-016-5 104 107 95 106
570-87413-13 DGA-016-10 101 105 94 107
570-87413-14 DGA-019-1 102 105 95 107
570-87413-15 DGA-019-6.5 103 99 103 96
570-87413-15 MS DGA-019-6.5 105 97 101 98
570-87413-15 MSD DGA-019-6.5 106 96 100 98
570-87413-16 DGA-019-10 106 107 96 106
570-87413-17 DGA-017-1 103 106 95 108
570-87413-18 DGA-017-5 101 105 94 107
570-87413-19 DGA-017-10 104 104 94 107
570-87413-21 DGA-021-1 100 105 93 106
570-87413-21 MS DGA-021-1 88 106 78 112
570-87413-21 MSD DGA-021-1 100 102 95 103
570-87413-22 DGA-021-5 104 105 94 106
570-87413-23 DGA-021-10 102 105 93 107
570-87413-25 DGA-022-1 101 104 93 106
570-87413-26 DGA-022-5 102 106 93 106
570-87413-27 DGA-022-10 103 105 94 108
570-88311-A-1-E MS Matrix Spike 94 95 89 98
570-88311-A-1-F MSD Matrix Spike Duplicate 94 96 87 101 LCS 570-219929/1-A Lab Control Sample 95 103 88 102
LCS 570-219962/1-A Lab Control Sample 96 96 96 96
LCS 570-220192/4-A Lab Control Sample 87 95 87 98
LCSD 570-219929/2-A Lab Control Sample Dup 97 99 92 101 LCSD 570-219962/2-A Lab Control Sample Dup 94 94 94 97
LCSD 570-220192/5-A Lab Control Sample Dup 89 99 87 99
MB 570-219929/3-A Method Blank 92 105 88 109
MB 570-219962/3-A Method Blank 95 98 98 97
MB 570-220192/3-A Method Blank 86 99 85 103
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
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15 Surrogate Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Matrix: Water Prep Type: Total/NA
Lab Sample ID Client Sample ID (70-123) (80-120) (78-120) (80-120)

DCA BFB DBFM TOL
570-87413-10 104 95 102 99
Percent Surrogate Recovery (Acceptance Limits)
DGA-012-20-GW
570-87413-20 DGA-018-20-GW 104 95 101 99
570-87413-24 DGA-020-20-GW 105 95 102 99
570-87413-28 Trip Blank 103 95 100 99
570-87521-A-1 MS Matrix Spike 100 101 99 100
570-87521-A-1 MSD Matrix Spike Duplicate 99 100 99 100
LCS 570-221166/4 Lab Control Sample 99 101 100 101
LCSD 570-221166/5 Lab Control Sample Dup 99 102 99 100
MB 570-221166/8 Method Blank 104 96 100 99
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
Eurofins Calscience

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15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: MB 570-219929/3-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 219835 Prep Batch: 219929
RL MDL
1,1,1,2-Tetrachloroethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,1,2-Trichloroethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,1-Dichloroethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,1-Dichloroethene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2-Dibromo-3-Chloropropane ND 10 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2-Dibromoethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2-Dichlorobenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2-Dichloroethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,2-Dichloropropane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,3-Dichlorobenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,3-Dichloropropane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 1,4-Dichlorobenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 2-Butanone ND 20 ug/Kg 03/16/22 10:18 03/16/22 12:58 1
2-Chlorotoluene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 2-Hexanone ND 20 ug/Kg 03/16/22 10:18 03/16/22 12:58 1
4-Chlorotoluene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 4-Methyl-2-pentanone ND 20 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Acetone ND 20 ug/Kg 03/16/22 10:18 03/16/22 12:58 1
Benzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1
Bromobenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Bromochloromethane ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Bromodichloromethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Bromoform ND 5.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1
Bromomethane ND 20 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 cis-1,2-Dichloroethene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 cis-1,3-Dichloropropene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Carbon disulfide ND 10 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Carbon tetrachloride ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Chlorobenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Chloroethane ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Chloroform ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Chloromethane ND 20 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Dibromochloromethane ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Dibromomethane ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Ethylbenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Isopropylbenzene ND 1.0 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Methylene Chloride ND 10 ug/Kg 03/16/22 10:18 03/16/22 12:58 1 Eurofins Calscience

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

Limits
1,1,1-Trichloroethane 50.0 48.48 ug/Kg 97 80 - 121
1,1,2,2-Tetrachloroethane 50.0 46.20 ug/Kg 92 80 - 120
1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 45.36 ug/Kg 91 79 - 120
1,1,2-Trichloroethane 50.0 44.02 ug/Kg 88 80 - 121
1,1-Dichloroethane 50.0 52.11 ug/Kg 104 80 - 120
1,1-Dichloroethene 50.0 53.63 ug/Kg 107 70 - 120
1,1-Dichloropropene 50.0 51.02 ug/Kg 102 77 - 123
1,2,3-Trichlorobenzene 50.0 63.10 ug/Kg 126 80 - 128
1,2,3-Trichloropropane 50.0 48.20 ug/Kg 96 80 - 120
1,2,4-Trichlorobenzene 50.0 61.65 ug/Kg 123 80 - 127
1,2,4-Trimethylbenzene 50.0 49.74 ug/Kg 99 80 - 120
1,2-Dibromo-3-Chloropropane 50.0 46.23 ug/Kg 92 59 - 120 1,2-Dibromoethane 50.0 47.19 ug/Kg 94 80 - 120
1,2-Dichlorobenzene 50.0 50.46 ug/Kg 101 80 - 120
1,2-Dichloroethane 50.0 44.56 ug/Kg 89 80 - 120
1,2-Dichloropropane 50.0 53.10 ug/Kg 106 78 - 126
1,3,5-Trimethylbenzene 50.0 50.98 ug/Kg 102 80 - 120
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LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
1,3-Dichloropropane 50.0 46.17 ug/Kg 92 80 - 120
1,4-Dichlorobenzene 50.0 49.38 ug/Kg 99 80 - 120
2,2-Dichloropropane 50.0 48.20 ug/Kg 96 71 - 126
2-Butanone 50.0 56.27 ug/Kg 113 59 - 136
2-Chlorotoluene 50.0 49.52 ug/Kg 99 80 - 120
2-Hexanone 50.0 52.64 ug/Kg 105 45 - 137
4-Chlorotoluene 50.0 48.93 ug/Kg 98 80 - 120
4-Methyl-2-pentanone 50.0 56.36 ug/Kg 113 58 - 132
Acetone 50.0 62.45 ug/Kg 125 49 - 138
Benzene 50.0 48.96 ug/Kg 98 80 - 120
Bromobenzene 50.0 50.50 ug/Kg 101 80 - 120
Bromochloromethane 50.0 47.04 ug/Kg 94 80 - 122
Bromodichloromethane 50.0 48.01 ug/Kg 96 80 - 127
Bromoform 50.0 45.47 ug/Kg 91 73 - 125
Bromomethane 50.0 49.03 ug/Kg 98 53 - 180
cis-1,2-Dichloroethene 50.0 45.39 ug/Kg 91 80 - 121
cis-1,3-Dichloropropene 50.0 49.90 ug/Kg 100 80 - 122
Carbon disulfide 50.0 47.38 ug/Kg 95 76 - 120
Carbon tetrachloride 50.0 51.41 ug/Kg 103 80 - 125
Chlorobenzene 50.0 49.88 ug/Kg 100 80 - 120
Chloroethane 50.0 56.68 ug/Kg 113 74 - 132
Chloroform 50.0 43.56 ug/Kg 87 75 - 128
Chloromethane 50.0 57.00 ug/Kg 114 40 - 135
Dibromochloromethane 50.0 47.11 ug/Kg 94 80 - 123
Dibromomethane 50.0 45.03 ug/Kg 90 80 - 121
Dichlorodifluoromethane 50.0 38.73 ug/Kg 77 40 - 126
Ethylbenzene 50.0 49.37 ug/Kg 99 80 - 120
Isopropylbenzene 50.0 51.21 ug/Kg 102 80 - 120
Methylene Chloride 50.0 47.15 ug/Kg 94 76 - 121
Methyl-t-Butyl Ether (MTBE) 50.0 45.83 ug/Kg 92 73 - 137 Naphthalene 50.0 58.73 ug/Kg 117 73 - 122
n-Butylbenzene 50.0 52.63 ug/Kg 105 76 - 120
N-Propylbenzene 50.0 49.83 ug/Kg 100 80 - 120
o-Xylene 50.0 49.45 ug/Kg 99 80 - 120
m,p-Xylene 100 98.55 ug/Kg 99 80 - 120
p-Isopropyltoluene 50.0 51.80 ug/Kg 104 80 - 120
sec-Butylbenzene 50.0 51.11 ug/Kg 102 75 - 120
Styrene 50.0 48.77 ug/Kg 98 80 - 120
trans-1,2-Dichloroethene 50.0 43.36 ug/Kg 87 79 - 120
trans-1,3-Dichloropropene 50.0 45.81 ug/Kg 92 80 - 125
tert-Butylbenzene 50.0 50.52 ug/Kg 101 73 - 120
Tetrachloroethene 50.0 49.46 ug/Kg 99 69 - 124
Toluene 50.0 50.32 ug/Kg 101 80 - 120
Trichloroethene 50.0 49.70 ug/Kg 99 80 - 120
Trichlorofluoromethane 50.0 49.38 ug/Kg 99 52 - 161
Vinyl acetate 50.0 45.58 ug/Kg 91 71 - 133
Vinyl chloride 50.0 61.17 ug/Kg 122 77 - 138
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LCSD LCSD
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane 50.0 49.49 ug/Kg 99 80 - 121 2 20 1,1,2,2-Tetrachloroethane 50.0 48.72 ug/Kg 97 80 - 120 5 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 47.34 ug/Kg 95 79 - 120 4 20
1,1,2-Trichloroethane 50.0 47.80 ug/Kg 96 80 - 121 8 20 1,1-Dichloroethane 50.0 53.74 ug/Kg 107 80 - 120 3 20
1,1-Dichloroethene 50.0 54.10 ug/Kg 108 70 - 120 1 20
1,1-Dichloropropene 50.0 52.56 ug/Kg 105 77 - 123 3 20
1,2,3-Trichlorobenzene 50.0 62.46 ug/Kg 125 80 - 128 1 20 1,2,3-Trichloropropane 50.0 50.01 ug/Kg 100 80 - 120 4 20 1,2,4-Trichlorobenzene 50.0 59.22 ug/Kg 118 80 - 127 4 20 1,2,4-Trimethylbenzene 50.0 50.26 ug/Kg 101 80 - 120 1 20 1,2-Dibromo-3-Chloropropane 50.0 51.62 ug/Kg 103 59 - 120 11 20 1,2-Dibromoethane 50.0 50.71 ug/Kg 101 80 - 120 7 20
1,2-Dichlorobenzene 50.0 50.79 ug/Kg 102 80 - 120 1 20
1,2-Dichloroethane 50.0 48.93 ug/Kg 98 80 - 120 9 20
1,2-Dichloropropane 50.0 56.31 ug/Kg 113 78 - 126 6 20
1,3,5-Trimethylbenzene 50.0 49.72 ug/Kg 99 80 - 120 3 20 1,3-Dichlorobenzene 50.0 50.31 ug/Kg 101 80 - 120 1 20
1,3-Dichloropropane 50.0 49.34 ug/Kg 99 80 - 120 7 20
1,4-Dichlorobenzene 50.0 50.65 ug/Kg 101 80 - 120 3 20
2,2-Dichloropropane 50.0 47.90 ug/Kg 96 71 - 126 1 20
2-Butanone 50.0 59.41 ug/Kg 119 59 - 136 5 20
2-Chlorotoluene 50.0 48.99 ug/Kg 98 80 - 120 1 20
2-Hexanone 50.0 57.86 ug/Kg 116 45 - 137 9 20
4-Chlorotoluene 50.0 49.12 ug/Kg 98 80 - 120 0 20
4-Methyl-2-pentanone 50.0 59.60 ug/Kg 119 58 - 132 6 20 Acetone 50.0 68.41 ug/Kg 137 49 - 138 9 24
Benzene 50.0 49.97 ug/Kg 100 80 - 120 2 20
Bromobenzene 50.0 51.31 ug/Kg 103 80 - 120 2 20
Bromochloromethane 50.0 48.95 ug/Kg 98 80 - 122 4 20
Bromodichloromethane 50.0 50.86 ug/Kg 102 80 - 127 6 20 Bromoform 50.0 50.27 ug/Kg 101 73 - 125 10 20
Bromomethane 50.0 49.17 ug/Kg 98 53 - 180 0 20
cis-1,2-Dichloroethene 50.0 48.37 ug/Kg 97 80 - 121 6 20 cis-1,3-Dichloropropene 50.0 53.19 ug/Kg 106 80 - 122 6 20 Carbon disulfide 50.0 46.18 ug/Kg 92 76 - 120 3 20
Carbon tetrachloride 50.0 53.51 ug/Kg 107 80 - 125 4 20 Eurofins Calscience

Page 54 of 104 ends

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

Limits RPD Limit
RPD
Chloroethane 50.0 51.60 ug/Kg 103 74 - 132 9 20
Chloroform 50.0 46.67 ug/Kg 93 75 - 128 7 20
Chloromethane 50.0 53.82 ug/Kg 108 40 - 135 6 20
Dibromochloromethane 50.0 51.02 ug/Kg 102 80 - 123 8 20 Dibromomethane 50.0 49.21 ug/Kg 98 80 - 121 9 20
Dichlorodifluoromethane 50.0 35.74 ug/Kg 71 40 - 126 8 20 Ethylbenzene 50.0 49.51 ug/Kg 99 80 - 120 0 20
Isopropylbenzene 50.0 50.86 ug/Kg 102 80 - 120 1 20
Methylene Chloride 50.0 46.70 ug/Kg 93 76 - 121 1 20
Methyl-t-Butyl Ether (MTBE) 50.0 51.58 ug/Kg 103 73 - 137 12 20 Naphthalene 50.0 60.23 ug/Kg 120 73 - 122 3 20
n-Butylbenzene 50.0 51.22 ug/Kg 102 76 - 120 3 20
N-Propylbenzene 50.0 49.92 ug/Kg 100 80 - 120 0 20
o-Xylene 50.0 50.00 ug/Kg 100 80 - 120 1 20
m,p-Xylene 100 97.93 ug/Kg 98 80 - 120 1 20
p-Isopropyltoluene 50.0 51.54 ug/Kg 103 80 - 120 0 20
sec-Butylbenzene 50.0 51.41 ug/Kg 103 75 - 120 1 20
Styrene 50.0 49.59 ug/Kg 99 80 - 120 2 20
trans-1,2-Dichloroethene 50.0 46.65 ug/Kg 93 79 - 120 7 20 trans-1,3-Dichloropropene 50.0 48.95 ug/Kg 98 80 - 125 7 20 tert-Butylbenzene 50.0 50.36 ug/Kg 101 73 - 120 0 20
Tetrachloroethene 50.0 49.56 ug/Kg 99 69 - 124 0 20
Toluene 50.0 50.42 ug/Kg 101 80 - 120 0 20
Trichloroethene 50.0 53.49 ug/Kg 107 80 - 120 7 20
Trichlorofluoromethane 50.0 45.91 ug/Kg 92 52 - 161 7 20 Vinyl acetate 50.0 46.83 ug/Kg 94 71 - 133 3 20
Vinyl chloride 50.0 55.13 ug/Kg 110 77 - 138 10 20
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
97 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 99 76 - 120
Dibromofluoromethane (Surr) 92 47 - 142
Toluene-d8 (Surr) 101 80 - 120
Lab Sample ID: 570-87413-21 MS Client Sample ID: DGA-021-1 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 219835 Prep Batch: 219929
1,1,1,2-Tetrachloroethane ND 49.6 39.29 ug/Kg 79 61 - 129 Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
1,1,1-Trichloroethane ND 49.6 39.53 ug/Kg 80 67 - 125
1,1,2,2-Tetrachloroethane ND 49.6 42.63 ug/Kg 86 20 - 164 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 49.6 38.05 ug/Kg 77 62 - 125
1,1,2-Trichloroethane ND 49.6 35.90 ug/Kg 72 52 - 134
1,1-Dichloroethane ND 49.6 42.89 ug/Kg 86 66 - 125
1,1-Dichloroethene ND 49.6 45.96 ug/Kg 93 60 - 125
1,1-Dichloropropene ND F2 49.6 39.75 ug/Kg 80 69 - 125
Eurofins Calscience

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Limits
1,2,3-Trichloropropane ND 49.6 48.23 ug/Kg 97 53 - 128
1,2,4-Trichlorobenzene ND 49.6 54.37 ug/Kg 110 20 - 146 1,2,4-Trimethylbenzene ND 49.6 44.88 ug/Kg 90 51 - 129
1,2-Dibromo-3-Chloropropane ND 49.6 47.40 ug/Kg 96 33 - 126 1,2-Dibromoethane ND 49.6 41.66 ug/Kg 84 65 - 125
1,2-Dichlorobenzene ND 49.6 46.64 ug/Kg 94 47 - 130
1,2-Dichloroethane ND 49.6 44.99 ug/Kg 91 66 - 127
1,2-Dichloropropane ND 49.6 47.12 ug/Kg 95 70 - 125
1,3,5-Trimethylbenzene ND 49.6 47.44 ug/Kg 96 50 - 132
1,3-Dichlorobenzene ND 49.6 44.71 ug/Kg 90 48 - 128
1,3-Dichloropropane ND 49.6 38.61 ug/Kg 78 66 - 125
1,4-Dichlorobenzene ND 49.6 44.95 ug/Kg 91 47 - 127
2,2-Dichloropropane ND 49.6 40.71 ug/Kg 82 61 - 128
2-Butanone ND 49.6 48.60 ug/Kg 98 48 - 134
2-Chlorotoluene ND 49.6 46.34 ug/Kg 93 54 - 127
2-Hexanone ND 49.6 57.03 ug/Kg 115 48 - 136
4-Chlorotoluene ND 49.6 43.71 ug/Kg 88 54 - 125
4-Methyl-2-pentanone ND 49.6 63.78 ug/Kg 129 55 - 133
Acetone ND 49.6 74.34 ug/Kg 115 30 - 175
Benzene ND 49.6 44.34 ug/Kg 89 70 - 125
Bromobenzene ND 49.6 49.26 ug/Kg 99 57 - 129
Bromochloromethane ND 49.6 46.16 ug/Kg 93 67 - 125
Bromodichloromethane ND 49.6 43.23 ug/Kg 87 64 - 130
Bromoform ND 49.6 37.21 ug/Kg 75 49 - 133
Bromomethane ND 49.6 58.58 ug/Kg 118 30 - 149
cis-1,2-Dichloroethene ND F2 49.6 36.56 ug/Kg 74 71 - 125 cis-1,3-Dichloropropene ND 49.6 43.15 ug/Kg 87 63 - 126 Carbon disulfide ND 49.6 45.11 ug/Kg 91 53 - 125
Carbon tetrachloride ND 49.6 41.10 ug/Kg 83 60 - 130
Chlorobenzene ND 49.6 46.23 ug/Kg 93 65 - 125
Chloroethane ND 49.6 60.36 ug/Kg 122 51 - 131
Chloroform ND F2 49.6 36.01 ug/Kg 73 70 - 125
Chloromethane ND 49.6 62.12 ug/Kg 125 43 - 125
Dibromochloromethane ND 49.6 37.74 ug/Kg 76 56 - 132
Dibromomethane ND 49.6 44.08 ug/Kg 89 67 - 127
Dichlorodifluoromethane ND 49.6 41.31 ug/Kg 83 47 - 127 Ethylbenzene ND 49.6 45.89 ug/Kg 93 64 - 125
Isopropylbenzene ND 49.6 46.24 ug/Kg 93 59 - 129
Methylene Chloride ND 49.6 49.75 ug/Kg 100 60 - 125
Methyl-t-Butyl Ether (MTBE) ND F2 49.6 38.85 ug/Kg 78 61 - 125 Naphthalene ND 49.6 56.06 ug/Kg 113 25 - 136
n-Butylbenzene ND 49.6 45.60 ug/Kg 92 35 - 135
N-Propylbenzene ND 49.6 46.68 ug/Kg 94 52 - 131
o-Xylene ND 49.6 47.38 ug/Kg 96 59 - 128
m,p-Xylene ND 99.2 92.12 ug/Kg 93 60 - 125
p-Isopropyltoluene ND 49.6 44.96 ug/Kg 91 46 - 132
sec-Butylbenzene ND 49.6 43.96 ug/Kg 89 47 - 131
Styrene ND 49.6 46.99 ug/Kg 95 58 - 128
Eurofins Calscience

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Limits
trans-1,3-Dichloropropene ND 49.6 37.35 ug/Kg 75 59 - 132 tert-Butylbenzene ND 49.6 43.81 ug/Kg 88 53 - 126
Tetrachloroethene ND 49.6 41.79 ug/Kg 84 62 - 129
Toluene ND 49.6 52.37 ug/Kg 106 68 - 125
Trichloroethene ND 49.6 41.99 ug/Kg 85 41 - 169
Trichlorofluoromethane ND 49.6 46.66 ug/Kg 94 63 - 128
Vinyl acetate ND 49.6 37.33 ug/Kg 75 20 - 154
Vinyl chloride ND F1 49.6 63.76 F1 ug/Kg 129 59 - 125
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
88 MS MS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 106 76 - 120
Dibromofluoromethane (Surr) 78 47 - 142
Toluene-d8 (Surr) 112 80 - 120
Lab Sample ID: 570-87413-21 MSD Client Sample ID: DGA-021-1 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 219835 Prep Batch: 219929
1,1,1,2-Tetrachloroethane ND 49.7 45.64 ug/Kg 92 61 - 129 15 23 Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane ND 49.7 47.08 ug/Kg 95 67 - 125 17 20 1,1,2,2-Tetrachloroethane ND 49.7 46.66 ug/Kg 94 20 - 164 9 40 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 49.7 44.21 ug/Kg 89 62 - 125 15 20
1,1,2-Trichloroethane ND 49.7 43.90 ug/Kg 88 52 - 134 20 25 1,1-Dichloroethane ND 49.7 51.69 ug/Kg 104 66 - 125 19 20 1,1-Dichloroethene ND 49.7 52.13 ug/Kg 105 60 - 125 13 20 1,1-Dichloropropene ND F2 49.7 48.88 F2 ug/Kg 98 69 - 125 21 20 1,2,3-Trichlorobenzene ND 49.7 55.39 ug/Kg 111 20 - 145 3 39 1,2,3-Trichloropropane ND 49.7 47.68 ug/Kg 96 53 - 128 1 25 1,2,4-Trichlorobenzene ND 49.7 54.01 ug/Kg 109 20 - 146 1 38 1,2,4-Trimethylbenzene ND 49.7 46.06 ug/Kg 93 51 - 129 3 27 1,2-Dibromo-3-Chloropropane ND 49.7 49.17 ug/Kg 99 33 - 126 4 29 1,2-Dibromoethane ND 49.7 46.27 ug/Kg 93 65 - 125 10 21 1,2-Dichlorobenzene ND 49.7 47.19 ug/Kg 95 47 - 130 1 29 1,2-Dichloroethane ND 49.7 47.19 ug/Kg 95 66 - 127 5 20 1,2-Dichloropropane ND 49.7 52.83 ug/Kg 106 70 - 125 11 20 1,3,5-Trimethylbenzene ND 49.7 46.88 ug/Kg 94 50 - 132 1 29 1,3-Dichlorobenzene ND 49.7 46.25 ug/Kg 93 48 - 128 3 28 1,3-Dichloropropane ND 49.7 45.42 ug/Kg 91 66 - 125 16 20 1,4-Dichlorobenzene ND 49.7 46.45 ug/Kg 93 47 - 127 3 28 2,2-Dichloropropane ND 49.7 46.99 ug/Kg 95 61 - 128 14 20 2-Butanone ND 49.7 56.75 ug/Kg 114 48 - 134 15 24
2-Chlorotoluene ND 49.7 46.22 ug/Kg 93 54 - 127 0 27
2-Hexanone ND 49.7 54.28 ug/Kg 109 48 - 136 5 28
4-Chlorotoluene ND 49.7 45.73 ug/Kg 92 54 - 125 5 26
4-Methyl-2-pentanone ND 49.7 58.21 ug/Kg 117 55 - 133 9 23 Eurofins Calscience

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MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Benzene ND 49.7 46.76 ug/Kg 94 70 - 125 5 20
Bromobenzene ND 49.7 48.17 ug/Kg 97 57 - 129 2 26
Bromochloromethane ND 49.7 47.71 ug/Kg 96 67 - 125 3 20 Bromodichloromethane ND 49.7 48.63 ug/Kg 98 64 - 130 12 20 Bromoform ND 49.7 44.65 ug/Kg 90 49 - 133 18 27
Bromomethane ND 49.7 50.55 ug/Kg 102 30 - 149 15 31
cis-1,2-Dichloroethene ND F2 49.7 45.63 F2 ug/Kg 92 71 - 125 22 20 cis-1,3-Dichloropropene ND 49.7 49.30 ug/Kg 99 63 - 126 13 20 Carbon disulfide ND 49.7 45.14 ug/Kg 91 53 - 125 0 20
Carbon tetrachloride ND 49.7 49.66 ug/Kg 100 60 - 130 19 20 Chlorobenzene ND 49.7 47.38 ug/Kg 95 65 - 125 2 22
Chloroethane ND 49.7 54.19 ug/Kg 109 51 - 131 11 21
Chloroform ND F2 49.7 44.72 F2 ug/Kg 90 70 - 125 22 20
Chloromethane ND 49.7 58.67 ug/Kg 118 43 - 125 6 21
Dibromochloromethane ND 49.7 45.90 ug/Kg 92 56 - 132 19 24 Dibromomethane ND 49.7 45.89 ug/Kg 92 67 - 127 4 20
Dichlorodifluoromethane ND 49.7 38.67 ug/Kg 78 47 - 127 7 20 Ethylbenzene ND 49.7 46.90 ug/Kg 94 64 - 125 2 22
Isopropylbenzene ND 49.7 47.57 ug/Kg 96 59 - 129 3 26
Methylene Chloride ND 49.7 46.12 ug/Kg 93 60 - 125 8 20 Methyl-t-Butyl Ether (MTBE) ND F2 49.7 48.76 F2 ug/Kg 98 61 - 125 23 20 Naphthalene ND 49.7 54.33 ug/Kg 109 25 - 136 3 32
n-Butylbenzene ND 49.7 47.04 ug/Kg 95 35 - 135 3 35
N-Propylbenzene ND 49.7 46.46 ug/Kg 93 52 - 131 0 27
o-Xylene ND 49.7 47.15 ug/Kg 95 59 - 128 0 24
m,p-Xylene ND 99.4 92.40 ug/Kg 93 60 - 125 0 24
p-Isopropyltoluene ND 49.7 47.27 ug/Kg 95 46 - 132 5 30 sec-Butylbenzene ND 49.7 46.55 ug/Kg 94 47 - 131 6 30
Styrene ND 49.7 46.56 ug/Kg 94 58 - 128 1 24
trans-1,2-Dichloroethene ND F2 49.7 43.27 F2 ug/Kg 87 67 - 125 26 20 trans-1,3-Dichloropropene ND 49.7 44.00 ug/Kg 89 59 - 132 16 22 tert-Butylbenzene ND 49.7 46.88 ug/Kg 94 53 - 126 7 28
Tetrachloroethene ND 49.7 46.77 ug/Kg 94 62 - 129 11 21 Toluene ND 49.7 48.42 ug/Kg 97 68 - 125 8 20
Trichloroethene ND 49.7 48.61 ug/Kg 98 41 - 169 15 21
Trichlorofluoromethane ND 49.7 48.20 ug/Kg 97 63 - 128 3 20 Vinyl acetate ND 49.7 44.10 ug/Kg 89 20 - 154 17 40
Vinyl chloride ND F1 49.7 58.40 ug/Kg 117 59 - 125 9 20 1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
100

MSD MSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 102 76 - 120
Dibromofluoromethane (Surr) 95 47 - 142
Toluene-d8 (Surr) 103 80 - 120
Eurofins Calscience

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7 8
9 10
11 12
13 14
15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-219962/3-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 219837 Prep Batch: 219962
RL MDL
1,1,1,2-Tetrachloroethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,1,2-Trichloroethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,1-Dichloroethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,1-Dichloroethene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2-Dibromo-3-Chloropropane ND 10 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2-Dibromoethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2-Dichlorobenzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2-Dichloroethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,2-Dichloropropane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,3-Dichlorobenzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,3-Dichloropropane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 1,4-Dichlorobenzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 2-Butanone ND 20 ug/Kg 03/16/22 08:30 03/16/22 11:20 1
2-Chlorotoluene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 2-Hexanone ND 20 ug/Kg 03/16/22 08:30 03/16/22 11:20 1
4-Chlorotoluene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 4-Methyl-2-pentanone ND 20 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Acetone ND 20 ug/Kg 03/16/22 08:30 03/16/22 11:20 1
Benzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1
Bromobenzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Bromochloromethane ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Bromodichloromethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Bromoform ND 5.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1
Bromomethane ND 20 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 cis-1,2-Dichloroethene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 cis-1,3-Dichloropropene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Carbon disulfide ND 10 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Carbon tetrachloride ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Chlorobenzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Chloroethane ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Chloroform ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Chloromethane ND 20 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Dibromochloromethane ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Dibromomethane ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Ethylbenzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Isopropylbenzene ND 1.0 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Methylene Chloride ND 10 ug/Kg 03/16/22 08:30 03/16/22 11:20 1 Eurofins Calscience

Page 59 of 104 ends

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

Limits
1,1,1-Trichloroethane 50.0 50.35 ug/Kg 101 73 - 121
1,1,2,2-Tetrachloroethane 50.0 51.02 ug/Kg 102 76 - 123 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 48.86 ug/Kg 98 64 - 120
1,1,2-Trichloroethane 50.0 52.20 ug/Kg 104 80 - 120
1,1-Dichloroethane 50.0 46.78 ug/Kg 94 71 - 120
1,1-Dichloroethene 50.0 48.28 ug/Kg 97 68 - 120
1,1-Dichloropropene 50.0 52.30 ug/Kg 105 74 - 122
1,2,3-Trichlorobenzene 50.0 52.30 ug/Kg 105 80 - 128
1,2,3-Trichloropropane 50.0 49.88 ug/Kg 100 74 - 122
1,2,4-Trichlorobenzene 50.0 53.80 ug/Kg 108 80 - 132
1,2,4-Trimethylbenzene 50.0 50.74 ug/Kg 101 80 - 120
1,2-Dibromo-3-Chloropropane 50.0 48.11 ug/Kg 96 65 - 120 1,2-Dibromoethane 50.0 48.70 ug/Kg 97 80 - 120
1,2-Dichlorobenzene 50.0 49.39 ug/Kg 99 80 - 120
1,2-Dichloroethane 50.0 45.74 ug/Kg 91 76 - 126
1,2-Dichloropropane 50.0 50.74 ug/Kg 101 80 - 120
1,3,5-Trimethylbenzene 50.0 47.70 ug/Kg 95 78 - 124
Eurofins Calscience

Page 60 of 104 ends

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

Limits
1,3-Dichloropropane 50.0 50.85 ug/Kg 102 80 - 120
1,4-Dichlorobenzene 50.0 50.21 ug/Kg 100 80 - 120
2,2-Dichloropropane 50.0 55.03 ug/Kg 110 68 - 129
2-Butanone 50.0 43.79 ug/Kg 88 63 - 129
2-Chlorotoluene 50.0 47.42 ug/Kg 95 77 - 122
2-Hexanone 50.0 44.44 ug/Kg 89 67 - 130
4-Chlorotoluene 50.0 50.60 ug/Kg 101 80 - 120
4-Methyl-2-pentanone 50.0 44.00 ug/Kg 88 73 - 122
Acetone 50.0 38.02 ug/Kg 76 62 - 123
Benzene 50.0 50.29 ug/Kg 101 76 - 120
Bromobenzene 50.0 47.47 ug/Kg 95 80 - 124
Bromochloromethane 50.0 44.78 ug/Kg 90 77 - 120
Bromodichloromethane 50.0 50.92 ug/Kg 102 80 - 127
Bromoform 50.0 54.06 ug/Kg 108 69 - 131
Bromomethane 50.0 47.35 ug/Kg 95 39 - 143
cis-1,2-Dichloroethene 50.0 47.38 ug/Kg 95 77 - 121
cis-1,3-Dichloropropene 50.0 50.98 ug/Kg 102 80 - 121
Carbon disulfide 50.0 49.01 ug/Kg 98 59 - 128
Carbon tetrachloride 50.0 54.69 ug/Kg 109 68 - 132
Chlorobenzene 50.0 49.52 ug/Kg 99 80 - 120
Chloroethane 50.0 42.93 ug/Kg 86 59 - 135
Chloroform 50.0 47.12 ug/Kg 94 77 - 121
Chloromethane 50.0 37.52 ug/Kg 75 51 - 129
Dibromochloromethane 50.0 51.21 ug/Kg 102 77 - 127
Dibromomethane 50.0 47.52 ug/Kg 95 80 - 124
Dichlorodifluoromethane 50.0 41.50 ug/Kg 83 53 - 133
Ethylbenzene 50.0 48.56 ug/Kg 97 80 - 120
Isopropylbenzene 50.0 47.97 ug/Kg 96 80 - 123
Methylene Chloride 50.0 43.85 ug/Kg 88 70 - 120
Methyl-t-Butyl Ether (MTBE) 50.0 51.42 ug/Kg 103 70 - 120 Naphthalene 50.0 46.57 ug/Kg 93 76 - 121
n-Butylbenzene 50.0 51.81 ug/Kg 104 78 - 123
N-Propylbenzene 50.0 48.89 ug/Kg 98 78 - 123
o-Xylene 50.0 47.51 ug/Kg 95 76 - 125
m,p-Xylene 100 94.35 ug/Kg 94 75 - 122
p-Isopropyltoluene 50.0 50.91 ug/Kg 102 80 - 121
sec-Butylbenzene 50.0 51.32 ug/Kg 103 80 - 120
Styrene 50.0 47.66 ug/Kg 95 79 - 123
trans-1,2-Dichloroethene 50.0 47.78 ug/Kg 96 71 - 120
trans-1,3-Dichloropropene 50.0 54.63 ug/Kg 109 80 - 126 tert-Butylbenzene 50.0 49.45 ug/Kg 99 80 - 120
Tetrachloroethene 50.0 50.87 ug/Kg 102 80 - 123
Toluene 50.0 48.83 ug/Kg 98 79 - 120
Trichloroethene 50.0 53.33 ug/Kg 107 80 - 120
Trichlorofluoromethane 50.0 47.08 ug/Kg 94 69 - 133
Vinyl acetate 50.0 57.09 ug/Kg 114 78 - 138
Vinyl chloride 50.0 46.69 ug/Kg 93 65 - 129
Eurofins Calscience

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

Limits RPD Limit
RPD
1,1,1-Trichloroethane 50.0 49.97 ug/Kg 100 73 - 121 1 20 1,1,2,2-Tetrachloroethane 50.0 50.23 ug/Kg 100 76 - 123 2 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 48.40 ug/Kg 97 64 - 120 1 20
1,1,2-Trichloroethane 50.0 50.90 ug/Kg 102 80 - 120 3 20 1,1-Dichloroethane 50.0 46.04 ug/Kg 92 71 - 120 2 20
1,1-Dichloroethene 50.0 46.98 ug/Kg 94 68 - 120 3 20
1,1-Dichloropropene 50.0 51.14 ug/Kg 102 74 - 122 2 20
1,2,3-Trichlorobenzene 50.0 51.37 ug/Kg 103 80 - 128 2 20 1,2,3-Trichloropropane 50.0 48.52 ug/Kg 97 74 - 122 3 20 1,2,4-Trichlorobenzene 50.0 50.90 ug/Kg 102 80 - 132 6 20 1,2,4-Trimethylbenzene 50.0 50.07 ug/Kg 100 80 - 120 1 20 1,2-Dibromo-3-Chloropropane 50.0 47.31 ug/Kg 95 65 - 120 2 20 1,2-Dibromoethane 50.0 48.92 ug/Kg 98 80 - 120 0 20
1,2-Dichlorobenzene 50.0 49.32 ug/Kg 99 80 - 120 0 20
1,2-Dichloroethane 50.0 44.48 ug/Kg 89 76 - 126 3 20
1,2-Dichloropropane 50.0 50.38 ug/Kg 101 80 - 120 1 20
1,3,5-Trimethylbenzene 50.0 46.10 ug/Kg 92 78 - 124 3 20 1,3-Dichlorobenzene 50.0 48.30 ug/Kg 97 80 - 120 3 20
1,3-Dichloropropane 50.0 50.73 ug/Kg 101 80 - 120 0 20
1,4-Dichlorobenzene 50.0 49.11 ug/Kg 98 80 - 120 2 20
2,2-Dichloropropane 50.0 54.15 ug/Kg 108 68 - 129 2 20
2-Butanone 50.0 41.41 ug/Kg 83 63 - 129 6 20
2-Chlorotoluene 50.0 46.47 ug/Kg 93 77 - 122 2 20
2-Hexanone 50.0 43.46 ug/Kg 87 67 - 130 2 20
4-Chlorotoluene 50.0 49.86 ug/Kg 100 80 - 120 1 20
4-Methyl-2-pentanone 50.0 42.38 ug/Kg 85 73 - 122 4 20
Acetone 50.0 35.93 ug/Kg 72 62 - 123 6 20
Benzene 50.0 49.91 ug/Kg 100 76 - 120 1 20
Bromobenzene 50.0 46.95 ug/Kg 94 80 - 124 1 20
Bromochloromethane 50.0 44.96 ug/Kg 90 77 - 120 0 20
Bromodichloromethane 50.0 50.46 ug/Kg 101 80 - 127 1 20 Bromoform 50.0 53.38 ug/Kg 107 69 - 131 1 20
Bromomethane 50.0 48.73 ug/Kg 97 39 - 143 3 20
cis-1,2-Dichloroethene 50.0 48.16 ug/Kg 96 77 - 121 2 20 cis-1,3-Dichloropropene 50.0 50.19 ug/Kg 100 80 - 121 2 20 Carbon disulfide 50.0 47.77 ug/Kg 96 59 - 128 3 20
Carbon tetrachloride 50.0 53.46 ug/Kg 107 68 - 132 2 20 Eurofins Calscience

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

Limits RPD Limit
RPD
Chloroethane 50.0 43.04 ug/Kg 86 59 - 135 0 20
Chloroform 50.0 47.17 ug/Kg 94 77 - 121 0 20
Chloromethane 50.0 38.51 ug/Kg 77 51 - 129 3 20
Dibromochloromethane 50.0 51.37 ug/Kg 103 77 - 127 0 20 Dibromomethane 50.0 47.06 ug/Kg 94 80 - 124 1 20
Dichlorodifluoromethane 50.0 41.33 ug/Kg 83 53 - 133 0 20 Ethylbenzene 50.0 47.83 ug/Kg 96 80 - 120 2 20
Isopropylbenzene 50.0 47.18 ug/Kg 94 80 - 123 2 20
Methylene Chloride 50.0 43.13 ug/Kg 86 70 - 120 2 20
Methyl-t-Butyl Ether (MTBE) 50.0 50.73 ug/Kg 101 70 - 120 1 20 Naphthalene 50.0 45.54 ug/Kg 91 76 - 121 2 20
n-Butylbenzene 50.0 49.91 ug/Kg 100 78 - 123 4 20
N-Propylbenzene 50.0 47.47 ug/Kg 95 78 - 123 3 20
o-Xylene 50.0 46.77 ug/Kg 94 76 - 125 2 20
m,p-Xylene 100 92.54 ug/Kg 93 75 - 122 2 20
p-Isopropyltoluene 50.0 49.50 ug/Kg 99 80 - 121 3 20
sec-Butylbenzene 50.0 50.08 ug/Kg 100 80 - 120 2 20
Styrene 50.0 46.91 ug/Kg 94 79 - 123 2 20
trans-1,2-Dichloroethene 50.0 47.15 ug/Kg 94 71 - 120 1 20 trans-1,3-Dichloropropene 50.0 54.75 ug/Kg 110 80 - 126 0 20 tert-Butylbenzene 50.0 49.22 ug/Kg 98 80 - 120 0 20
Tetrachloroethene 50.0 50.38 ug/Kg 101 80 - 123 1 20
Toluene 50.0 48.66 ug/Kg 97 79 - 120 0 20
Trichloroethene 50.0 52.41 ug/Kg 105 80 - 120 2 20
Trichlorofluoromethane 50.0 47.65 ug/Kg 95 69 - 133 1 20 Vinyl acetate 50.0 53.78 ug/Kg 108 78 - 138 6 20
Vinyl chloride 50.0 46.72 ug/Kg 93 65 - 129 0 20
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
94 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 94 76 - 120
Dibromofluoromethane (Surr) 94 47 - 142
Toluene-d8 (Surr) 97 80 - 120
Lab Sample ID: 570-87413-15 MS Client Sample ID: DGA-019-6.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 219837 Prep Batch: 219962
1,1,1,2-Tetrachloroethane ND 49.6 40.62 ug/Kg 82 61 - 129 Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
1,1,1-Trichloroethane ND 49.6 43.27 ug/Kg 87 67 - 125
1,1,2,2-Tetrachloroethane ND 49.6 37.94 ug/Kg 76 20 - 164 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 49.6 42.11 ug/Kg 85 62 - 125
1,1,2-Trichloroethane ND 49.6 42.55 ug/Kg 86 52 - 134
1,1-Dichloroethane ND 49.6 40.66 ug/Kg 82 66 - 125
1,1-Dichloroethene ND 49.6 42.00 ug/Kg 85 60 - 125
1,1-Dichloropropene ND 49.6 43.90 ug/Kg 89 69 - 125
Eurofins Calscience

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Limits
1,2,3-Trichloropropane ND 49.6 36.98 ug/Kg 75 53 - 128
1,2,4-Trichlorobenzene ND 49.6 17.97 ug/Kg 36 20 - 146
1,2,4-Trimethylbenzene ND 49.6 31.19 ug/Kg 63 51 - 129
1,2-Dibromo-3-Chloropropane ND 49.6 33.89 ug/Kg 68 33 - 126 1,2-Dibromoethane ND 49.6 39.42 ug/Kg 79 65 - 125
1,2-Dichlorobenzene ND 49.6 29.23 ug/Kg 59 47 - 130
1,2-Dichloroethane ND 49.6 38.20 ug/Kg 77 66 - 127
1,2-Dichloropropane ND 49.6 41.99 ug/Kg 85 70 - 125
1,3,5-Trimethylbenzene ND F1 49.6 29.83 ug/Kg 60 50 - 132 1,3-Dichlorobenzene ND F1 49.6 29.54 ug/Kg 60 48 - 128
1,3-Dichloropropane ND 49.6 41.71 ug/Kg 84 66 - 125
1,4-Dichlorobenzene ND 49.6 29.43 ug/Kg 59 47 - 127
2,2-Dichloropropane ND 49.6 46.21 ug/Kg 93 61 - 128
2-Butanone ND 49.6 38.38 ug/Kg 77 48 - 134
2-Chlorotoluene ND F1 49.6 31.28 ug/Kg 63 54 - 127
2-Hexanone ND 49.6 34.71 ug/Kg 70 48 - 136
4-Chlorotoluene ND 49.6 33.14 ug/Kg 67 54 - 125
4-Methyl-2-pentanone ND 49.6 34.29 ug/Kg 69 55 - 133
Acetone ND 49.6 31.52 ug/Kg 64 30 - 175
Benzene ND 49.6 41.63 ug/Kg 84 70 - 125
Bromobenzene ND F1 49.6 32.85 ug/Kg 66 57 - 129
Bromochloromethane ND 49.6 39.10 ug/Kg 79 67 - 125
Bromodichloromethane ND 49.6 41.34 ug/Kg 83 64 - 130
Bromoform ND 49.6 40.48 ug/Kg 82 49 - 133
Bromomethane ND 49.6 42.69 ug/Kg 86 30 - 149
cis-1,2-Dichloroethene ND 49.6 42.13 ug/Kg 85 71 - 125
cis-1,3-Dichloropropene ND 49.6 40.69 ug/Kg 82 63 - 126 Carbon disulfide ND 49.6 42.25 ug/Kg 85 53 - 125
Carbon tetrachloride ND 49.6 45.38 ug/Kg 91 60 - 130
Chlorobenzene ND F1 49.6 37.52 ug/Kg 76 65 - 125
Chloroethane ND 49.6 36.63 ug/Kg 74 51 - 131
Chloroform ND 49.6 40.94 ug/Kg 83 70 - 125
Chloromethane ND 49.6 32.93 ug/Kg 66 43 - 125
Dibromochloromethane ND 49.6 41.22 ug/Kg 83 56 - 132
Dibromomethane ND 49.6 39.62 ug/Kg 80 67 - 127
Dichlorodifluoromethane ND 49.6 34.71 ug/Kg 70 47 - 127 Ethylbenzene ND F1 49.6 36.07 ug/Kg 73 64 - 125
Isopropylbenzene ND F1 49.6 32.64 ug/Kg 66 59 - 129
Methylene Chloride ND 49.6 39.16 ug/Kg 79 60 - 125
Methyl-t-Butyl Ether (MTBE) ND 49.6 43.73 ug/Kg 88 61 - 125 Naphthalene ND 49.6 22.23 ug/Kg 45 25 - 136
n-Butylbenzene ND 49.6 24.87 ug/Kg 50 35 - 135
N-Propylbenzene ND F1 49.6 31.42 ug/Kg 63 52 - 131
o-Xylene ND 49.6 34.89 ug/Kg 70 59 - 128
m,p-Xylene ND F1 99.2 69.85 ug/Kg 70 60 - 125
p-Isopropyltoluene ND F1 49.6 28.17 ug/Kg 57 46 - 132
sec-Butylbenzene ND F1 49.6 28.93 ug/Kg 58 47 - 131
Styrene ND 49.6 34.93 ug/Kg 70 58 - 128
Eurofins Calscience

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Limits
trans-1,3-Dichloropropene ND 49.6 44.06 ug/Kg 89 59 - 132 tert-Butylbenzene ND F1 49.6 30.21 ug/Kg 61 53 - 126
Tetrachloroethene ND 49.6 38.72 ug/Kg 78 62 - 129
Toluene ND 49.6 39.14 ug/Kg 79 68 - 125
Trichloroethene ND 49.6 44.04 ug/Kg 89 41 - 169
Trichlorofluoromethane ND 49.6 39.19 ug/Kg 79 63 - 128
Vinyl acetate ND 49.6 40.35 ug/Kg 81 20 - 154
Vinyl chloride ND 49.6 39.70 ug/Kg 80 59 - 125
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
105
MS MS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 97 76 - 120
Dibromofluoromethane (Surr) 101 47 - 142
Toluene-d8 (Surr) 98 80 - 120
Lab Sample ID: 570-87413-15 MSD Client Sample ID: DGA-019-6.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 219837 Prep Batch: 219962
1,1,1,2-Tetrachloroethane ND 49.3 34.06 ug/Kg 69 61 - 129 18 23 Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane ND 49.3 37.51 ug/Kg 76 67 - 125 14 20 1,1,2,2-Tetrachloroethane ND 49.3 31.14 ug/Kg 63 20 - 164 20 40 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 49.3 35.85 ug/Kg 73 62 - 125 16 20
1,1,2-Trichloroethane ND 49.3 34.99 ug/Kg 71 52 - 134 19 25 1,1-Dichloroethane ND 49.3 34.99 ug/Kg 71 66 - 125 15 20 1,1-Dichloroethene ND 49.3 37.20 ug/Kg 75 60 - 125 12 20 1,1-Dichloropropene ND 49.3 37.86 ug/Kg 77 69 - 125 15 20 1,2,3-Trichlorobenzene ND 49.3 14.02 ug/Kg 28 20 - 145 20 39 1,2,3-Trichloropropane ND 49.3 30.62 ug/Kg 62 53 - 128 19 25 1,2,4-Trichlorobenzene ND 49.3 14.11 ug/Kg 29 20 - 146 24 38 1,2,4-Trimethylbenzene ND 49.3 25.03 ug/Kg 51 51 - 129 22 27 1,2-Dibromo-3-Chloropropane ND 49.3 27.52 ug/Kg 56 33 - 126 21 29 1,2-Dibromoethane ND 49.3 32.21 ug/Kg 65 65 - 125 20 21 1,2-Dichlorobenzene ND 49.3 23.65 ug/Kg 48 47 - 130 21 29 1,2-Dichloroethane ND 49.3 32.78 ug/Kg 66 66 - 127 15 20 1,2-Dichloropropane ND 49.3 36.04 ug/Kg 73 70 - 125 15 20 1,3,5-Trimethylbenzene ND F1 49.3 23.82 F1 ug/Kg 48 50 - 132 22 29 1,3-Dichlorobenzene ND F1 49.3 23.37 F1 ug/Kg 47 48 - 128 23 28 1,3-Dichloropropane ND 49.3 34.80 ug/Kg 71 66 - 125 18 20 1,4-Dichlorobenzene ND 49.3 24.02 ug/Kg 49 47 - 127 20 28 2,2-Dichloropropane ND 49.3 40.32 ug/Kg 82 61 - 128 14 20 2-Butanone ND 49.3 30.37 ug/Kg 62 48 - 134 23 24
2-Chlorotoluene ND F1 49.3 25.60 F1 ug/Kg 52 54 - 127 20 27 2-Hexanone ND 49.3 26.85 ug/Kg 54 48 - 136 26 28
4-Chlorotoluene ND 49.3 26.71 ug/Kg 54 54 - 125 21 26
4-Methyl-2-pentanone ND 49.3 27.62 ug/Kg 56 55 - 133 22 23 Eurofins Calscience

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MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Benzene ND 49.3 36.53 ug/Kg 74 70 - 125 13 20
Bromobenzene ND F1 49.3 27.42 F1 ug/Kg 56 57 - 129 18 26 Bromochloromethane ND 49.3 33.45 ug/Kg 68 67 - 125 16 20 Bromodichloromethane ND 49.3 34.78 ug/Kg 71 64 - 130 17 20 Bromoform ND 49.3 32.47 ug/Kg 66 49 - 133 22 27
Bromomethane ND 49.3 33.52 ug/Kg 68 30 - 149 24 31
cis-1,2-Dichloroethene ND 49.3 36.28 ug/Kg 74 71 - 125 15 20 cis-1,3-Dichloropropene ND 49.3 34.43 ug/Kg 70 63 - 126 17 20 Carbon disulfide ND 49.3 36.99 ug/Kg 75 53 - 125 13 20
Carbon tetrachloride ND 49.3 38.92 ug/Kg 79 60 - 130 15 20 Chlorobenzene ND F1 49.3 31.60 F1 ug/Kg 64 65 - 125 17 22 Chloroethane ND 49.3 31.82 ug/Kg 65 51 - 131 14 21
Chloroform ND 49.3 35.84 ug/Kg 73 70 - 125 13 20
Chloromethane ND 49.3 27.97 ug/Kg 57 43 - 125 16 21
Dibromochloromethane ND 49.3 33.43 ug/Kg 68 56 - 132 21 24 Dibromomethane ND 49.3 33.18 ug/Kg 67 67 - 127 18 20
Dichlorodifluoromethane ND 49.3 29.92 ug/Kg 61 47 - 127 15 20 Ethylbenzene ND F1 49.3 30.37 F1 ug/Kg 62 64 - 125 17 22 Isopropylbenzene ND F1 49.3 26.41 F1 ug/Kg 54 59 - 129 21 26 Methylene Chloride ND 49.3 33.85 ug/Kg 69 60 - 125 15 20 Methyl-t-Butyl Ether (MTBE) ND 49.3 35.77 ug/Kg 73 61 - 125 20 20 Naphthalene ND 49.3 17.22 ug/Kg 35 25 - 136 25 32
n-Butylbenzene ND 49.3 18.68 ug/Kg 38 35 - 135 28 35
N-Propylbenzene ND F1 49.3 24.87 F1 ug/Kg 50 52 - 131 23 27 o-Xylene ND 49.3 29.16 ug/Kg 59 59 - 128 18 24
m,p-Xylene ND F1 98.6 57.90 F1 ug/Kg 59 60 - 125 19 24
p-Isopropyltoluene ND F1 49.3 21.53 F1 ug/Kg 44 46 - 132 27 30 sec-Butylbenzene ND F1 49.3 21.99 F1 ug/Kg 45 47 - 131 27 30 Styrene ND 49.3 29.19 ug/Kg 59 58 - 128 18 24
trans-1,2-Dichloroethene ND 49.3 35.65 ug/Kg 72 67 - 125 15 20 trans-1,3-Dichloropropene ND 49.3 37.28 ug/Kg 76 59 - 132 17 22 tert-Butylbenzene ND F1 49.3 23.71 F1 ug/Kg 48 53 - 126 24 28 Tetrachloroethene ND 49.3 32.12 ug/Kg 65 62 - 129 19 21 Toluene ND 49.3 33.92 ug/Kg 69 68 - 125 14 20
Trichloroethene ND 49.3 37.76 ug/Kg 77 41 - 169 15 21
Trichlorofluoromethane ND 49.3 33.22 ug/Kg 67 63 - 128 16 20 Vinyl acetate ND 49.3 32.29 ug/Kg 65 20 - 154 22 40
Vinyl chloride ND 49.3 35.02 ug/Kg 71 59 - 125 13 20
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
106

MSD MSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 96 76 - 120
Dibromofluoromethane (Surr) 100 47 - 142
Toluene-d8 (Surr) 98 80 - 120
Eurofins Calscience

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1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-220192/3-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220282 Prep Batch: 220192
RL MDL
1,1,1,2-Tetrachloroethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,1,2-Trichloroethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,1-Dichloroethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,1-Dichloroethene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2-Dibromo-3-Chloropropane ND 10 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2-Dibromoethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2-Dichlorobenzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2-Dichloroethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,2-Dichloropropane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,3-Dichlorobenzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,3-Dichloropropane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 1,4-Dichlorobenzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 2-Butanone ND 20 ug/Kg 03/17/22 08:46 03/17/22 13:30 1
2-Chlorotoluene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 2-Hexanone ND 20 ug/Kg 03/17/22 08:46 03/17/22 13:30 1
4-Chlorotoluene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 4-Methyl-2-pentanone ND 20 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Acetone ND 20 ug/Kg 03/17/22 08:46 03/17/22 13:30 1
Benzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1
Bromobenzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Bromochloromethane ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Bromodichloromethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Bromoform ND 5.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1
Bromomethane ND 20 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 cis-1,2-Dichloroethene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 cis-1,3-Dichloropropene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Carbon disulfide ND 10 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Carbon tetrachloride ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Chlorobenzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Chloroethane ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Chloroform ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Chloromethane ND 20 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Dibromochloromethane ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Dibromomethane ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Ethylbenzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Isopropylbenzene ND 1.0 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Methylene Chloride ND 10 ug/Kg 03/17/22 08:46 03/17/22 13:30 1 Eurofins Calscience

Page 67 of 104 ends

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

Limits
1,1,1-Trichloroethane 50.0 43.39 ug/Kg 87 80 - 121
1,1,2,2-Tetrachloroethane 50.0 43.63 ug/Kg 87 80 - 120
1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 43.15 ug/Kg 86 79 - 120
1,1,2-Trichloroethane 50.0 44.38 ug/Kg 89 80 - 121
1,1-Dichloroethane 50.0 47.64 ug/Kg 95 80 - 120
1,1-Dichloroethene 50.0 48.33 ug/Kg 97 70 - 120
1,1-Dichloropropene 50.0 45.71 ug/Kg 91 77 - 123
1,2,3-Trichlorobenzene 50.0 60.61 ug/Kg 121 80 - 128
1,2,3-Trichloropropane 50.0 45.17 ug/Kg 90 80 - 120
1,2,4-Trichlorobenzene 50.0 58.64 ug/Kg 117 80 - 127
1,2,4-Trimethylbenzene 50.0 46.21 ug/Kg 92 80 - 120
1,2-Dibromo-3-Chloropropane 50.0 44.28 ug/Kg 89 59 - 120 1,2-Dibromoethane 50.0 48.39 ug/Kg 97 80 - 120
1,2-Dichlorobenzene 50.0 49.70 ug/Kg 99 80 - 120
1,2-Dichloroethane 50.0 46.36 ug/Kg 93 80 - 120
1,2-Dichloropropane 50.0 53.30 ug/Kg 107 78 - 126
1,3,5-Trimethylbenzene 50.0 48.12 ug/Kg 96 80 - 120
Eurofins Calscience

Page 68 of 104 ends

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

Limits
1,3-Dichloropropane 50.0 45.12 ug/Kg 90 80 - 120
1,4-Dichlorobenzene 50.0 49.12 ug/Kg 98 80 - 120
2,2-Dichloropropane 50.0 42.23 ug/Kg 84 71 - 126
2-Butanone 50.0 50.36 ug/Kg 101 59 - 136
2-Chlorotoluene 50.0 45.91 ug/Kg 92 80 - 120
2-Hexanone 50.0 52.94 ug/Kg 106 45 - 137
4-Chlorotoluene 50.0 44.15 ug/Kg 88 80 - 120
4-Methyl-2-pentanone 50.0 56.88 ug/Kg 114 58 - 132
Acetone 50.0 55.40 ug/Kg 111 49 - 138
Benzene 50.0 46.38 ug/Kg 93 80 - 120
Bromobenzene 50.0 52.12 ug/Kg 104 80 - 120
Bromochloromethane 50.0 43.35 ug/Kg 87 80 - 122
Bromodichloromethane 50.0 47.42 ug/Kg 95 80 - 127
Bromoform 50.0 47.95 ug/Kg 96 73 - 125
Bromomethane 50.0 46.18 ug/Kg 92 53 - 180
cis-1,2-Dichloroethene 50.0 42.36 ug/Kg 85 80 - 121
cis-1,3-Dichloropropene 50.0 50.08 ug/Kg 100 80 - 122
Carbon disulfide 50.0 40.71 ug/Kg 81 76 - 120
Carbon tetrachloride 50.0 48.06 ug/Kg 96 80 - 125
Chlorobenzene 50.0 49.16 ug/Kg 98 80 - 120
Chloroethane 50.0 48.57 ug/Kg 97 74 - 132
Chloroform 50.0 41.16 ug/Kg 82 75 - 128
Chloromethane 50.0 52.35 ug/Kg 105 40 - 135
Dibromochloromethane 50.0 48.07 ug/Kg 96 80 - 123
Dibromomethane 50.0 45.55 ug/Kg 91 80 - 121
Dichlorodifluoromethane 50.0 32.37 ug/Kg 65 40 - 126
Ethylbenzene 50.0 46.58 ug/Kg 93 80 - 120
Isopropylbenzene 50.0 49.55 ug/Kg 99 80 - 120
Methylene Chloride 50.0 41.43 ug/Kg 83 76 - 121
Methyl-t-Butyl Ether (MTBE) 50.0 44.77 ug/Kg 90 73 - 137 Naphthalene 50.0 54.56 ug/Kg 109 73 - 122
n-Butylbenzene 50.0 46.94 ug/Kg 94 76 - 120
N-Propylbenzene 50.0 47.23 ug/Kg 94 80 - 120
o-Xylene 50.0 46.61 ug/Kg 93 80 - 120
m,p-Xylene 100 91.63 ug/Kg 92 80 - 120
p-Isopropyltoluene 50.0 48.58 ug/Kg 97 80 - 120
sec-Butylbenzene 50.0 47.98 ug/Kg 96 75 - 120
Styrene 50.0 47.80 ug/Kg 96 80 - 120
trans-1,2-Dichloroethene 50.0 40.76 ug/Kg 82 79 - 120
trans-1,3-Dichloropropene 50.0 45.11 ug/Kg 90 80 - 125
tert-Butylbenzene 50.0 49.10 ug/Kg 98 73 - 120
Tetrachloroethene 50.0 51.88 ug/Kg 104 69 - 124
Toluene 50.0 47.60 ug/Kg 95 80 - 120
Trichloroethene 50.0 49.09 ug/Kg 98 80 - 120
Trichlorofluoromethane 50.0 44.23 ug/Kg 88 52 - 161
Vinyl acetate 50.0 44.69 ug/Kg 89 71 - 133
Vinyl chloride 50.0 52.92 ug/Kg 106 77 - 138
Eurofins Calscience

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

Limits RPD Limit
RPD
1,1,1-Trichloroethane 50.0 44.13 ug/Kg 88 80 - 121 2 20 1,1,2,2-Tetrachloroethane 50.0 42.72 ug/Kg 85 80 - 120 2 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 43.71 ug/Kg 87 79 - 120 1 20
1,1,2-Trichloroethane 50.0 43.67 ug/Kg 87 80 - 121 2 20 1,1-Dichloroethane 50.0 48.77 ug/Kg 98 80 - 120 2 20
1,1-Dichloroethene 50.0 49.81 ug/Kg 100 70 - 120 3 20
1,1-Dichloropropene 50.0 46.83 ug/Kg 94 77 - 123 2 20
1,2,3-Trichlorobenzene 50.0 60.74 ug/Kg 121 80 - 128 0 20 1,2,3-Trichloropropane 50.0 46.77 ug/Kg 94 80 - 120 3 20 1,2,4-Trichlorobenzene 50.0 58.55 ug/Kg 117 80 - 127 0 20 1,2,4-Trimethylbenzene 50.0 45.71 ug/Kg 91 80 - 120 1 20 1,2-Dibromo-3-Chloropropane 50.0 42.96 ug/Kg 86 59 - 120 3 20 1,2-Dibromoethane 50.0 48.30 ug/Kg 97 80 - 120 0 20
1,2-Dichlorobenzene 50.0 48.60 ug/Kg 97 80 - 120 2 20
1,2-Dichloroethane 50.0 46.07 ug/Kg 92 80 - 120 1 20
1,2-Dichloropropane 50.0 52.97 ug/Kg 106 78 - 126 1 20
1,3,5-Trimethylbenzene 50.0 48.93 ug/Kg 98 80 - 120 2 20 1,3-Dichlorobenzene 50.0 48.18 ug/Kg 96 80 - 120 1 20
1,3-Dichloropropane 50.0 44.92 ug/Kg 90 80 - 120 0 20
1,4-Dichlorobenzene 50.0 47.86 ug/Kg 96 80 - 120 3 20
2,2-Dichloropropane 50.0 42.72 ug/Kg 85 71 - 126 1 20
2-Butanone 50.0 53.61 ug/Kg 107 59 - 136 6 20
2-Chlorotoluene 50.0 46.30 ug/Kg 93 80 - 120 1 20
2-Hexanone 50.0 54.45 ug/Kg 109 45 - 137 3 20
4-Chlorotoluene 50.0 43.11 ug/Kg 86 80 - 120 2 20
4-Methyl-2-pentanone 50.0 58.50 ug/Kg 117 58 - 132 3 20 Acetone 50.0 57.25 ug/Kg 115 49 - 138 3 24
Benzene 50.0 46.52 ug/Kg 93 80 - 120 0 20
Bromobenzene 50.0 52.54 ug/Kg 105 80 - 120 1 20
Bromochloromethane 50.0 45.00 ug/Kg 90 80 - 122 4 20
Bromodichloromethane 50.0 47.22 ug/Kg 94 80 - 127 0 20
Bromoform 50.0 46.91 ug/Kg 94 73 - 125 2 20
Bromomethane 50.0 46.07 ug/Kg 92 53 - 180 0 20
cis-1,2-Dichloroethene 50.0 42.51 ug/Kg 85 80 - 121 0 20 cis-1,3-Dichloropropene 50.0 48.48 ug/Kg 97 80 - 122 3 20 Carbon disulfide 50.0 42.06 ug/Kg 84 76 - 120 3 20
Carbon tetrachloride 50.0 49.00 ug/Kg 98 80 - 125 2 20
Eurofins Calscience

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

Limits RPD Limit
RPD
Chloroethane 50.0 51.21 ug/Kg 102 74 - 132 5 20
Chloroform 50.0 41.63 ug/Kg 83 75 - 128 1 20
Chloromethane 50.0 53.35 ug/Kg 107 40 - 135 2 20
Dibromochloromethane 50.0 48.90 ug/Kg 98 80 - 123 2 20
Dibromomethane 50.0 45.00 ug/Kg 90 80 - 121 1 20
Dichlorodifluoromethane 50.0 34.39 ug/Kg 69 40 - 126 6 20 Ethylbenzene 50.0 47.25 ug/Kg 95 80 - 120 1 20
Isopropylbenzene 50.0 49.41 ug/Kg 99 80 - 120 0 20
Methylene Chloride 50.0 43.00 ug/Kg 86 76 - 121 4 20
Methyl-t-Butyl Ether (MTBE) 50.0 44.70 ug/Kg 89 73 - 137 0 20 Naphthalene 50.0 54.72 ug/Kg 109 73 - 122 0 20
n-Butylbenzene 50.0 45.69 ug/Kg 91 76 - 120 3 20
N-Propylbenzene 50.0 47.25 ug/Kg 95 80 - 120 0 20
o-Xylene 50.0 47.21 ug/Kg 94 80 - 120 1 20
m,p-Xylene 100 92.58 ug/Kg 93 80 - 120 1 20
p-Isopropyltoluene 50.0 47.55 ug/Kg 95 80 - 120 2 20
sec-Butylbenzene 50.0 47.09 ug/Kg 94 75 - 120 2 20
Styrene 50.0 48.19 ug/Kg 96 80 - 120 1 20
trans-1,2-Dichloroethene 50.0 40.69 ug/Kg 81 79 - 120 0 20 trans-1,3-Dichloropropene 50.0 44.92 ug/Kg 90 80 - 125 0 20 tert-Butylbenzene 50.0 48.19 ug/Kg 96 73 - 120 2 20
Tetrachloroethene 50.0 50.54 ug/Kg 101 69 - 124 3 20
Toluene 50.0 48.07 ug/Kg 96 80 - 120 1 20
Trichloroethene 50.0 48.21 ug/Kg 96 80 - 120 2 20
Trichlorofluoromethane 50.0 45.73 ug/Kg 91 52 - 161 3 20 Vinyl acetate 50.0 46.53 ug/Kg 93 71 - 133 4 20
Vinyl chloride 50.0 55.33 ug/Kg 111 77 - 138 4 20
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
89 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 99 76 - 120
Dibromofluoromethane (Surr) 87 47 - 142
Toluene-d8 (Surr) 99 80 - 120
Lab Sample ID: 570-88311-A-1-E MS Client Sample ID: Matrix Spike Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220282 Prep Batch: 220192
1,1,1,2-Tetrachloroethane ND 49.3 47.14 ug/Kg 96 61 - 129 Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
1,1,1-Trichloroethane ND 49.3 43.37 ug/Kg 88 67 - 125
1,1,2,2-Tetrachloroethane ND 49.3 44.19 ug/Kg 90 20 - 164 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 49.3 43.49 ug/Kg 88 62 - 125
1,1,2-Trichloroethane ND 49.3 42.93 ug/Kg 87 52 - 134
1,1-Dichloroethane ND 49.3 48.61 ug/Kg 99 66 - 125
1,1-Dichloroethene ND 49.3 48.40 ug/Kg 98 60 - 125
1,1-Dichloropropene ND 49.3 45.52 ug/Kg 92 69 - 125
Eurofins Calscience

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Limits
1,2,3-Trichloropropane ND 49.3 44.56 ug/Kg 90 53 - 128
1,2,4-Trichlorobenzene ND 49.3 39.56 ug/Kg 80 20 - 146
1,2,4-Trimethylbenzene ND 49.3 41.91 ug/Kg 85 51 - 129
1,2-Dibromo-3-Chloropropane ND 49.3 43.58 ug/Kg 88 33 - 126 1,2-Dibromoethane ND 49.3 47.24 ug/Kg 96 65 - 125
1,2-Dichlorobenzene ND 49.3 42.78 ug/Kg 87 47 - 130
1,2-Dichloroethane ND 49.3 47.27 ug/Kg 96 66 - 127
1,2-Dichloropropane ND 49.3 52.26 ug/Kg 106 70 - 125
1,3,5-Trimethylbenzene ND 49.3 42.18 ug/Kg 86 50 - 132
1,3-Dichlorobenzene ND 49.3 42.65 ug/Kg 86 48 - 128
1,3-Dichloropropane ND 49.3 45.50 ug/Kg 92 66 - 125
1,4-Dichlorobenzene ND 49.3 42.38 ug/Kg 86 47 - 127
2,2-Dichloropropane ND 49.3 43.53 ug/Kg 88 61 - 128
2-Butanone ND 49.3 52.95 ug/Kg 107 48 - 134
2-Chlorotoluene ND 49.3 40.48 ug/Kg 82 54 - 127
2-Hexanone ND 49.3 55.12 ug/Kg 112 48 - 136
4-Chlorotoluene ND 49.3 40.43 ug/Kg 82 54 - 125
4-Methyl-2-pentanone ND 49.3 58.34 ug/Kg 118 55 - 133
Acetone ND 49.3 62.49 ug/Kg 127 30 - 175
Benzene ND 49.3 45.87 ug/Kg 93 70 - 125
Bromobenzene ND 49.3 47.20 ug/Kg 96 57 - 129
Bromochloromethane ND 49.3 45.16 ug/Kg 92 67 - 125
Bromodichloromethane ND 49.3 46.81 ug/Kg 95 64 - 130
Bromoform ND 49.3 47.97 ug/Kg 97 49 - 133
Bromomethane ND 49.3 48.64 ug/Kg 99 30 - 149
cis-1,2-Dichloroethene ND 49.3 42.37 ug/Kg 86 71 - 125
cis-1,3-Dichloropropene ND 49.3 48.99 ug/Kg 99 63 - 126 Carbon disulfide ND 49.3 40.62 ug/Kg 82 53 - 125
Carbon tetrachloride ND 49.3 47.80 ug/Kg 97 60 - 130
Chlorobenzene ND 49.3 45.89 ug/Kg 93 65 - 125
Chloroethane ND 49.3 48.94 ug/Kg 99 51 - 131
Chloroform ND 49.3 41.46 ug/Kg 84 70 - 125
Chloromethane ND 49.3 51.88 ug/Kg 105 43 - 125
Dibromochloromethane ND 49.3 47.70 ug/Kg 97 56 - 132
Dibromomethane ND 49.3 46.54 ug/Kg 94 67 - 127
Dichlorodifluoromethane ND 49.3 32.27 ug/Kg 65 47 - 127 Ethylbenzene ND 49.3 43.30 ug/Kg 88 64 - 125
Isopropylbenzene ND 49.3 44.52 ug/Kg 90 59 - 129
Methylene Chloride ND 49.3 42.04 ug/Kg 85 60 - 125
Methyl-t-Butyl Ether (MTBE) ND 49.3 46.38 ug/Kg 94 61 - 125 Naphthalene ND 49.3 43.69 ug/Kg 89 25 - 136
n-Butylbenzene ND 49.3 38.35 ug/Kg 78 35 - 135
N-Propylbenzene ND 49.3 41.01 ug/Kg 83 52 - 131
o-Xylene ND 49.3 43.16 ug/Kg 88 59 - 128
m,p-Xylene ND 98.6 84.60 ug/Kg 86 60 - 125
p-Isopropyltoluene ND 49.3 41.82 ug/Kg 85 46 - 132
sec-Butylbenzene ND 49.3 40.95 ug/Kg 83 47 - 131
Styrene ND 49.3 44.25 ug/Kg 90 58 - 128
Eurofins Calscience

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Limits
trans-1,3-Dichloropropene ND 49.3 43.97 ug/Kg 89 59 - 132 tert-Butylbenzene ND 49.3 44.24 ug/Kg 90 53 - 126
Tetrachloroethene ND 49.3 47.14 ug/Kg 96 62 - 129
Toluene ND 49.3 46.17 ug/Kg 94 68 - 125
Trichloroethene ND 49.3 47.84 ug/Kg 97 41 - 169
Trichlorofluoromethane ND 49.3 44.65 ug/Kg 91 63 - 128
Vinyl acetate ND F2 49.3 28.24 ug/Kg 57 20 - 154
Vinyl chloride ND 49.3 52.69 ug/Kg 107 59 - 125
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
94 MS MS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 95 76 - 120
Dibromofluoromethane (Surr) 89 47 - 142
Toluene-d8 (Surr) 98 80 - 120
Lab Sample ID: 570-88311-A-1-F MSD Client Sample ID: Matrix Spike Duplicate Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220282 Prep Batch: 220192
1,1,1,2-Tetrachloroethane ND 49.9 41.15 ug/Kg 82 61 - 129 14 23 Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane ND 49.9 39.75 ug/Kg 80 67 - 125 9 20 1,1,2,2-Tetrachloroethane ND 49.9 37.79 ug/Kg 76 20 - 164 16 40 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 49.9 39.08 ug/Kg 78 62 - 125 11 20
1,1,2-Trichloroethane ND 49.9 38.66 ug/Kg 77 52 - 134 10 25 1,1-Dichloroethane ND 49.9 44.90 ug/Kg 90 66 - 125 8 20 1,1-Dichloroethene ND 49.9 45.54 ug/Kg 91 60 - 125 6 20 1,1-Dichloropropene ND 49.9 39.75 ug/Kg 80 69 - 125 14 20 1,2,3-Trichlorobenzene ND 49.9 28.27 ug/Kg 57 20 - 145 30 39 1,2,3-Trichloropropane ND 49.9 41.45 ug/Kg 83 53 - 128 7 25 1,2,4-Trichlorobenzene ND 49.9 29.13 ug/Kg 58 20 - 146 30 38 1,2,4-Trimethylbenzene ND 49.9 35.02 ug/Kg 70 51 - 129 18 27 1,2-Dibromo-3-Chloropropane ND 49.9 39.17 ug/Kg 79 33 - 126 11 29 1,2-Dibromoethane ND 49.9 42.84 ug/Kg 86 65 - 125 10 21 1,2-Dichlorobenzene ND 49.9 35.30 ug/Kg 71 47 - 130 19 29 1,2-Dichloroethane ND 49.9 44.44 ug/Kg 89 66 - 127 6 20 1,2-Dichloropropane ND 49.9 48.20 ug/Kg 97 70 - 125 8 20 1,3,5-Trimethylbenzene ND 49.9 36.04 ug/Kg 72 50 - 132 16 29 1,3-Dichlorobenzene ND 49.9 35.06 ug/Kg 70 48 - 128 20 28 1,3-Dichloropropane ND 49.9 40.41 ug/Kg 81 66 - 125 12 20 1,4-Dichlorobenzene ND 49.9 35.66 ug/Kg 71 47 - 127 17 28 2,2-Dichloropropane ND 49.9 40.44 ug/Kg 81 61 - 128 7 20 2-Butanone ND 49.9 48.10 ug/Kg 96 48 - 134 10 24
2-Chlorotoluene ND 49.9 35.30 ug/Kg 71 54 - 127 14 27
2-Hexanone ND 49.9 49.92 ug/Kg 100 48 - 136 10 28
4-Chlorotoluene ND 49.9 34.14 ug/Kg 68 54 - 125 17 26
4-Methyl-2-pentanone ND 49.9 53.81 ug/Kg 108 55 - 133 8 23 Eurofins Calscience

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MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Benzene ND 49.9 41.90 ug/Kg 84 70 - 125 9 20
Bromobenzene ND 49.9 41.52 ug/Kg 83 57 - 129 13 26
Bromochloromethane ND 49.9 42.74 ug/Kg 86 67 - 125 6 20 Bromodichloromethane ND 49.9 43.84 ug/Kg 88 64 - 130 7 20 Bromoform ND 49.9 39.85 ug/Kg 80 49 - 133 18 27
Bromomethane ND 49.9 44.00 ug/Kg 88 30 - 149 10 31
cis-1,2-Dichloroethene ND 49.9 39.16 ug/Kg 78 71 - 125 8 20 cis-1,3-Dichloropropene ND 49.9 43.58 ug/Kg 87 63 - 126 12 20 Carbon disulfide ND 49.9 38.20 ug/Kg 77 53 - 125 6 20
Carbon tetrachloride ND 49.9 42.96 ug/Kg 86 60 - 130 11 20 Chlorobenzene ND 49.9 41.59 ug/Kg 83 65 - 125 10 22
Chloroethane ND 49.9 47.21 ug/Kg 95 51 - 131 4 21
Chloroform ND 49.9 38.12 ug/Kg 76 70 - 125 8 20
Chloromethane ND 49.9 49.58 ug/Kg 99 43 - 125 5 21
Dibromochloromethane ND 49.9 41.26 ug/Kg 83 56 - 132 14 24 Dibromomethane ND 49.9 43.45 ug/Kg 87 67 - 127 7 20
Dichlorodifluoromethane ND 49.9 29.31 ug/Kg 59 47 - 127 10 20 Ethylbenzene ND 49.9 39.03 ug/Kg 78 64 - 125 10 22
Isopropylbenzene ND 49.9 38.24 ug/Kg 77 59 - 129 15 26
Methylene Chloride ND 49.9 40.48 ug/Kg 81 60 - 125 4 20 Methyl-t-Butyl Ether (MTBE) ND 49.9 40.32 ug/Kg 81 61 - 125 14 20 Naphthalene ND 49.9 35.12 ug/Kg 70 25 - 136 22 32
n-Butylbenzene ND 49.9 29.90 ug/Kg 60 35 - 135 25 35
N-Propylbenzene ND 49.9 34.57 ug/Kg 69 52 - 131 17 27
o-Xylene ND 49.9 39.19 ug/Kg 79 59 - 128 10 24
m,p-Xylene ND 99.8 76.27 ug/Kg 76 60 - 125 10 24
p-Isopropyltoluene ND 49.9 33.92 ug/Kg 68 46 - 132 21 30 sec-Butylbenzene ND 49.9 33.10 ug/Kg 66 47 - 131 21 30
Styrene ND 49.9 39.58 ug/Kg 79 58 - 128 11 24
trans-1,2-Dichloroethene ND 49.9 36.51 ug/Kg 73 67 - 125 10 20 trans-1,3-Dichloropropene ND 49.9 38.67 ug/Kg 78 59 - 132 13 22 tert-Butylbenzene ND 49.9 36.63 ug/Kg 73 53 - 126 19 28 Tetrachloroethene ND 49.9 41.05 ug/Kg 82 62 - 129 14 21 Toluene ND 49.9 43.19 ug/Kg 87 68 - 125 7 20
Trichloroethene ND 49.9 43.43 ug/Kg 87 41 - 169 10 21
Trichlorofluoromethane ND 49.9 41.25 ug/Kg 83 63 - 128 8 20 Vinyl acetate ND F2 49.9 11.13 F2 ug/Kg 22 20 - 154 87 40 Vinyl chloride ND 49.9 50.66 ug/Kg 102 59 - 125 4 20
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
94 MSD MSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 96 76 - 120
Dibromofluoromethane (Surr) 87 47 - 142
Toluene-d8 (Surr) 101 80 - 120
Eurofins Calscience

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7 8
9 10
11 12
13 14
15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-221166/8 Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA
Analysis Batch: 221166
RL MDL
1,1,1,2-Tetrachloroethane ND 2.0 ug/L 03/21/22 21:57 1
MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/L 03/21/22 21:57 1
1,1,2,2-Tetrachloroethane ND 1.0 ug/L 03/21/22 21:57 1
1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/L 03/21/22 21:57 1 1,1,2-Trichloroethane ND 1.0 ug/L 03/21/22 21:57 1
1,1-Dichloroethane ND 1.0 ug/L 03/21/22 21:57 1
1,1-Dichloroethene ND 1.0 ug/L 03/21/22 21:57 1
1,1-Dichloropropene ND 1.0 ug/L 03/21/22 21:57 1
1,2,3-Trichlorobenzene ND 1.0 ug/L 03/21/22 21:57 1
1,2,3-Trichloropropane ND 5.0 ug/L 03/21/22 21:57 1
1,2,4-Trichlorobenzene ND 1.0 ug/L 03/21/22 21:57 1
1,2,4-Trimethylbenzene ND 1.0 ug/L 03/21/22 21:57 1
1,2-Dibromo-3-Chloropropane ND 10 ug/L 03/21/22 21:57 1 1,2-Dibromoethane ND 1.0 ug/L 03/21/22 21:57 1
1,2-Dichlorobenzene ND 1.0 ug/L 03/21/22 21:57 1
1,2-Dichloroethane ND 0.50 ug/L 03/21/22 21:57 1
1,2-Dichloropropane ND 1.0 ug/L 03/21/22 21:57 1
1,3,5-Trimethylbenzene ND 1.0 ug/L 03/21/22 21:57 1
1,3-Dichlorobenzene ND 1.0 ug/L 03/21/22 21:57 1
1,3-Dichloropropane ND 1.0 ug/L 03/21/22 21:57 1
1,4-Dichlorobenzene ND 1.0 ug/L 03/21/22 21:57 1
2,2-Dichloropropane ND 1.0 ug/L 03/21/22 21:57 1
2-Butanone ND 20 ug/L 03/21/22 21:57 1
2-Chlorotoluene ND 1.0 ug/L 03/21/22 21:57 1
2-Hexanone ND 10 ug/L 03/21/22 21:57 1
4-Chlorotoluene ND 1.0 ug/L 03/21/22 21:57 1
4-Methyl-2-pentanone ND 10 ug/L 03/21/22 21:57 1
Acetone ND 20 ug/L 03/21/22 21:57 1
Benzene ND 0.50 ug/L 03/21/22 21:57 1
Bromobenzene ND 1.0 ug/L 03/21/22 21:57 1
Bromochloromethane ND 2.0 ug/L 03/21/22 21:57 1
Bromodichloromethane ND 1.0 ug/L 03/21/22 21:57 1
Bromoform ND 5.0 ug/L 03/21/22 21:57 1
Bromomethane ND 25 ug/L 03/21/22 21:57 1
cis-1,2-Dichloroethene ND 1.0 ug/L 03/21/22 21:57 1
cis-1,3-Dichloropropene ND 0.50 ug/L 03/21/22 21:57 1
Carbon disulfide ND 10 ug/L 03/21/22 21:57 1
Carbon tetrachloride ND 0.50 ug/L 03/21/22 21:57 1
Chlorobenzene ND 1.0 ug/L 03/21/22 21:57 1
Chloroethane ND 5.0 ug/L 03/21/22 21:57 1
Chloroform ND 1.0 ug/L 03/21/22 21:57 1
Chloromethane ND 10 ug/L 03/21/22 21:57 1
Dibromochloromethane ND 2.0 ug/L 03/21/22 21:57 1
Dibromomethane ND 1.0 ug/L 03/21/22 21:57 1
Dichlorodifluoromethane ND 5.0 ug/L 03/21/22 21:57 1
Ethylbenzene ND 1.0 ug/L 03/21/22 21:57 1
Isopropylbenzene ND 1.0 ug/L 03/21/22 21:57 1
Methylene Chloride ND 10 ug/L 03/21/22 21:57 1
Eurofins Calscience

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

Limits
1,1,1-Trichloroethane 50.0 57.34 ug/L 115 76 - 122
1,1,2,2-Tetrachloroethane 50.0 54.62 ug/L 109 79 - 120
1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 53.45 ug/L 107 53 - 122
1,1,2-Trichloroethane 50.0 51.96 ug/L 104 80 - 120
1,1-Dichloroethane 50.0 53.17 ug/L 106 72 - 120
1,1-Dichloroethene 50.0 53.51 ug/L 107 64 - 121
1,1-Dichloropropene 50.0 52.19 ug/L 104 77 - 120
1,2,3-Trichlorobenzene 50.0 49.99 ug/L 100 78 - 136
1,2,3-Trichloropropane 50.0 55.07 ug/L 110 74 - 120
1,2,4-Trichlorobenzene 50.0 49.56 ug/L 99 73 - 138
1,2,4-Trimethylbenzene 50.0 53.49 ug/L 107 80 - 121
1,2-Dibromo-3-Chloropropane 50.0 60.23 ug/L 120 74 - 120 1,2-Dibromoethane 50.0 54.47 ug/L 109 80 - 120
1,2-Dichlorobenzene 50.0 52.11 ug/L 104 80 - 120
1,2-Dichloroethane 50.0 50.11 ug/L 100 76 - 120
1,2-Dichloropropane 50.0 51.94 ug/L 104 73 - 122
1,3,5-Trimethylbenzene 50.0 51.60 ug/L 103 80 - 122
Eurofins Calscience

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

Limits
1,3-Dichloropropane 50.0 50.88 ug/L 102 80 - 120
1,4-Dichlorobenzene 50.0 50.93 ug/L 102 80 - 120
2,2-Dichloropropane 50.0 67.87 ug/L 136 60 - 150
2-Butanone 50.0 52.14 ug/L 104 65 - 128
2-Chlorotoluene 50.0 50.62 ug/L 101 79 - 120
2-Hexanone 50.0 55.08 ug/L 110 61 - 140
4-Chlorotoluene 50.0 52.48 ug/L 105 80 - 120
4-Methyl-2-pentanone 50.0 55.11 ug/L 110 68 - 133
Acetone 50.0 50.87 ug/L 102 50 - 134
Benzene 50.0 50.63 ug/L 101 76 - 120
Bromobenzene 50.0 51.95 ug/L 104 80 - 125
Bromochloromethane 50.0 50.62 ug/L 101 79 - 120
Bromodichloromethane 50.0 58.02 ug/L 116 80 - 123
Bromoform 50.0 67.55 *+ me ug/L 135 80 - 128
Bromomethane 20.0 20.47 J ug/L 102 64 - 150
cis-1,2-Dichloroethene 50.0 53.12 ug/L 106 80 - 120
cis-1,3-Dichloropropene 50.0 57.89 ug/L 116 75 - 133
Carbon disulfide 50.0 53.25 ug/L 106 67 - 126
Carbon tetrachloride 50.0 63.03 ug/L 126 80 - 127
Chlorobenzene 50.0 51.33 ug/L 103 80 - 120
Chloroethane 20.0 21.96 ug/L 110 67 - 128
Chloroform 50.0 52.52 ug/L 105 80 - 120
Chloromethane 20.0 24.66 ug/L 123 69 - 132
Dibromochloromethane 50.0 63.57 ug/L 127 79 - 130
Dibromomethane 50.0 52.41 ug/L 105 80 - 120
Dichlorodifluoromethane 20.0 38.17 *+ ug/L 191 60 - 138 Ethylbenzene 50.0 52.22 ug/L 104 80 - 120
Isopropylbenzene 50.0 51.60 ug/L 103 80 - 123
Methylene Chloride 50.0 49.86 ug/L 100 62 - 133
Methyl-t-Butyl Ether (MTBE) 50.0 51.38 ug/L 103 64 - 120 Naphthalene 50.0 51.01 ug/L 102 80 - 120
n-Butylbenzene 50.0 50.67 ug/L 101 76 - 128
N-Propylbenzene 50.0 50.29 ug/L 101 80 - 122
o-Xylene 50.0 52.11 ug/L 104 80 - 121
m,p-Xylene 100 102.7 ug/L 103 74 - 122
p-Isopropyltoluene 50.0 52.34 ug/L 105 78 - 125
sec-Butylbenzene 50.0 51.50 ug/L 103 78 - 125
Styrene 50.0 53.64 ug/L 107 80 - 124
trans-1,2-Dichloroethene 50.0 52.79 ug/L 106 73 - 120
trans-1,3-Dichloropropene 50.0 61.57 ug/L 123 80 - 132
tert-Butylbenzene 50.0 51.35 ug/L 103 76 - 132
Tetrachloroethene 50.0 53.14 ug/L 106 72 - 135
Toluene 50.0 51.87 ug/L 104 76 - 120
Trichloroethene 50.0 52.85 ug/L 106 80 - 122
Trichlorofluoromethane 20.0 17.22 ug/L 86 69 - 139
Vinyl acetate 50.0 60.14 ug/L 120 74 - 147
Vinyl chloride 20.0 20.69 ug/L 103 70 - 124
Eurofins Calscience

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

Limits RPD Limit
RPD
1,1,1-Trichloroethane 50.0 54.45 ug/L 109 76 - 122 5 20 1,1,2,2-Tetrachloroethane 50.0 52.29 ug/L 105 79 - 120 4 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 49.57 ug/L 99 53 - 122 8 20
1,1,2-Trichloroethane 50.0 50.48 ug/L 101 80 - 120 3 20 1,1-Dichloroethane 50.0 50.36 ug/L 101 72 - 120 5 20
1,1-Dichloroethene 50.0 49.92 ug/L 100 64 - 121 7 20
1,1-Dichloropropene 50.0 48.77 ug/L 98 77 - 120 7 20
1,2,3-Trichlorobenzene 50.0 48.27 ug/L 97 78 - 136 4 20 1,2,3-Trichloropropane 50.0 53.36 ug/L 107 74 - 120 3 20 1,2,4-Trichlorobenzene 50.0 47.39 ug/L 95 73 - 138 4 20 1,2,4-Trimethylbenzene 50.0 50.77 ug/L 102 80 - 121 5 20 1,2-Dibromo-3-Chloropropane 50.0 58.07 ug/L 116 74 - 120 4 20 1,2-Dibromoethane 50.0 52.23 ug/L 104 80 - 120 4 20
1,2-Dichlorobenzene 50.0 49.58 ug/L 99 80 - 120 5 20
1,2-Dichloroethane 50.0 48.41 ug/L 97 76 - 120 3 20
1,2-Dichloropropane 50.0 49.95 ug/L 100 73 - 122 4 20
1,3,5-Trimethylbenzene 50.0 48.82 ug/L 98 80 - 122 6 20 1,3-Dichlorobenzene 50.0 49.05 ug/L 98 80 - 120 5 20
1,3-Dichloropropane 50.0 49.48 ug/L 99 80 - 120 3 20
1,4-Dichlorobenzene 50.0 48.16 ug/L 96 80 - 120 6 20
2,2-Dichloropropane 50.0 62.60 ug/L 125 60 - 150 8 20
2-Butanone 50.0 52.35 ug/L 105 65 - 128 0 20
2-Chlorotoluene 50.0 47.78 ug/L 96 79 - 120 6 20
2-Hexanone 50.0 52.45 ug/L 105 61 - 140 5 20
4-Chlorotoluene 50.0 49.57 ug/L 99 80 - 120 6 20
4-Methyl-2-pentanone 50.0 53.59 ug/L 107 68 - 133 3 20
Acetone 50.0 50.34 ug/L 101 50 - 134 1 25
Benzene 50.0 47.81 ug/L 96 76 - 120 6 20
Bromobenzene 50.0 49.83 ug/L 100 80 - 125 4 20
Bromochloromethane 50.0 48.52 ug/L 97 79 - 120 4 20
Bromodichloromethane 50.0 55.68 ug/L 111 80 - 123 4 20
Bromoform 50.0 64.88 *+ me ug/L 130 80 - 128 4 20
Bromomethane 20.0 19.31 J ug/L 97 64 - 150 6 20
cis-1,2-Dichloroethene 50.0 50.71 ug/L 101 80 - 120 5 20 cis-1,3-Dichloropropene 50.0 55.88 ug/L 112 75 - 133 4 20 Carbon disulfide 50.0 49.24 ug/L 98 67 - 126 8 20
Carbon tetrachloride 50.0 58.51 ug/L 117 80 - 127 7 20
Eurofins Calscience

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

Limits RPD Limit
RPD
Chloroethane 20.0 20.93 ug/L 105 67 - 128 5 20
Chloroform 50.0 49.93 ug/L 100 80 - 120 5 20
Chloromethane 20.0 22.80 ug/L 114 69 - 132 8 20
Dibromochloromethane 50.0 61.60 ug/L 123 79 - 130 3 20
Dibromomethane 50.0 50.92 ug/L 102 80 - 120 3 20
Dichlorodifluoromethane 20.0 34.28 *+ ug/L 171 60 - 138 11 21 Ethylbenzene 50.0 49.36 ug/L 99 80 - 120 6 20
Isopropylbenzene 50.0 48.31 ug/L 97 80 - 123 7 20
Methylene Chloride 50.0 47.84 ug/L 96 62 - 133 4 20
Methyl-t-Butyl Ether (MTBE) 50.0 50.40 ug/L 101 64 - 120 2 20 Naphthalene 50.0 48.92 ug/L 98 80 - 120 4 20
n-Butylbenzene 50.0 46.76 ug/L 94 76 - 128 8 20
N-Propylbenzene 50.0 47.53 ug/L 95 80 - 122 6 20
o-Xylene 50.0 49.59 ug/L 99 80 - 121 5 20
m,p-Xylene 100 96.92 ug/L 97 74 - 122 6 20
p-Isopropyltoluene 50.0 48.69 ug/L 97 78 - 125 7 20
sec-Butylbenzene 50.0 47.97 ug/L 96 78 - 125 7 20
Styrene 50.0 50.95 ug/L 102 80 - 124 5 20
trans-1,2-Dichloroethene 50.0 48.88 ug/L 98 73 - 120 8 20 trans-1,3-Dichloropropene 50.0 58.78 ug/L 118 80 - 132 5 20 tert-Butylbenzene 50.0 48.02 ug/L 96 76 - 132 7 20
Tetrachloroethene 50.0 50.00 ug/L 100 72 - 135 6 20
Toluene 50.0 49.05 ug/L 98 76 - 120 6 20
Trichloroethene 50.0 50.00 ug/L 100 80 - 122 6 20
Trichlorofluoromethane 20.0 17.37 ug/L 87 69 - 139 1 20 Vinyl acetate 50.0 58.42 ug/L 117 74 - 147 3 20
Vinyl chloride 20.0 18.72 ug/L 94 70 - 124 10 20
1,2-Dichloroethane-d4 (Surr) 70 - 123
Surrogate
99 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 102 80 - 120
Dibromofluoromethane (Surr) 99 78 - 120
Toluene-d8 (Surr) 100 80 - 120
Lab Sample ID: 570-87521-A-1 MS Client Sample ID: Matrix Spike Matrix: Water Prep Type: Total/NA
Analysis Batch: 221166
1,1,1,2-Tetrachloroethane ND 50.0 59.56 ug/L 119 75 - 138 Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
1,1,1-Trichloroethane ND 50.0 55.58 ug/L 111 69 - 127
1,1,2,2-Tetrachloroethane ND 50.0 56.51 ug/L 113 75 - 133 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 50.0 45.03 ug/L 90 50 - 125
1,1,2-Trichloroethane ND 50.0 53.60 ug/L 107 75 - 125
1,1-Dichloroethane ND 50.0 53.36 ug/L 107 75 - 125
1,1-Dichloroethene ND 50.0 54.36 ug/L 109 57 - 135
1,1-Dichloropropene ND 50.0 52.68 ug/L 105 73 - 125
Eurofins Calscience

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Limits
1,2,3-Trichloropropane ND 50.0 57.49 ug/L 115 75 - 125
1,2,4-Trichlorobenzene ND 50.0 47.48 ug/L 95 69 - 136
1,2,4-Trimethylbenzene ND 50.0 51.58 ug/L 103 75 - 131
1,2-Dibromo-3-Chloropropane ND F1 50.0 61.33 ug/L 123 65 - 128 1,2-Dibromoethane ND 50.0 55.80 ug/L 112 75 - 125
1,2-Dichlorobenzene ND 50.0 51.05 ug/L 102 75 - 125
1,2-Dichloroethane ND 50.0 52.79 ug/L 106 75 - 127
1,2-Dichloropropane ND 50.0 52.73 ug/L 105 75 - 126
1,3,5-Trimethylbenzene ND 50.0 51.88 ug/L 104 75 - 129
1,3-Dichlorobenzene ND 50.0 49.65 ug/L 99 75 - 125
1,3-Dichloropropane ND 50.0 52.83 ug/L 106 75 - 126
1,4-Dichlorobenzene ND 50.0 49.52 ug/L 99 75 - 125
2,2-Dichloropropane ND 50.0 50.82 ug/L 102 51 - 141
2-Butanone ND 50.0 59.78 ug/L 120 61 - 137
2-Chlorotoluene ND 50.0 50.57 ug/L 101 75 - 125
2-Hexanone ND 50.0 60.96 ug/L 122 60 - 155
4-Chlorotoluene ND 50.0 50.33 ug/L 101 75 - 130
4-Methyl-2-pentanone ND 50.0 60.30 ug/L 121 66 - 138
Acetone ND 50.0 56.95 ug/L 114 49 - 133
Benzene ND 50.0 51.73 ug/L 103 75 - 125
Bromobenzene ND 50.0 52.84 ug/L 106 75 - 127
Bromochloromethane ND 50.0 51.60 ug/L 103 72 - 125
Bromodichloromethane ND 50.0 58.27 ug/L 117 75 - 129
Bromoform ND *+ 50.0 64.20 ug/L 128 65 - 146
Bromomethane ND 50.0 52.93 ug/L 106 51 - 146
cis-1,2-Dichloroethene ND 50.0 53.93 ug/L 108 57 - 142
cis-1,3-Dichloropropene ND 50.0 55.08 ug/L 110 73 - 128 Carbon disulfide ND 50.0 52.54 ug/L 105 67 - 129
Carbon tetrachloride ND 50.0 59.38 ug/L 119 68 - 137
Chlorobenzene ND 50.0 51.90 ug/L 104 75 - 125
Chloroethane ND 50.0 59.48 ug/L 119 60 - 145
Chloroform ND 50.0 52.86 ug/L 106 75 - 125
Chloromethane ND F1 50.0 71.83 F1 ug/L 144 56 - 142
Dibromochloromethane ND 50.0 62.33 ug/L 125 74 - 140
Dibromomethane ND 50.0 55.08 ug/L 110 75 - 125
Dichlorodifluoromethane ND *+ F1 50.0 76.44 F1 ug/L 153 51 - 128 Ethylbenzene ND 50.0 52.42 ug/L 105 75 - 127
Isopropylbenzene ND 50.0 51.95 ug/L 104 75 - 130
Methylene Chloride ND 50.0 50.86 ug/L 102 70 - 125
Methyl-t-Butyl Ether (MTBE) ND 50.0 48.87 ug/L 98 65 - 125 Naphthalene ND 50.0 52.39 ug/L 105 75 - 134
n-Butylbenzene ND 50.0 47.82 ug/L 96 71 - 137
N-Propylbenzene ND 50.0 50.79 ug/L 102 75 - 129
o-Xylene ND 50.0 52.21 ug/L 104 75 - 128
m,p-Xylene ND 100 103.2 ug/L 103 75 - 128
p-Isopropyltoluene ND 50.0 50.10 ug/L 100 74 - 135
sec-Butylbenzene ND 50.0 50.03 ug/L 100 75 - 132
Styrene ND 50.0 53.44 ug/L 107 75 - 129
Eurofins Calscience

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Limits
trans-1,3-Dichloropropene ND 50.0 57.55 ug/L 115 69 - 144 tert-Butylbenzene ND 50.0 49.79 ug/L 100 75 - 132
Tetrachloroethene ND 50.0 53.65 ug/L 107 54 - 149
Toluene ND 50.0 52.78 ug/L 106 75 - 125
Trichloroethene ND 50.0 53.91 ug/L 108 68 - 128
Trichlorofluoromethane ND 50.0 53.54 ug/L 107 54 - 150
Vinyl acetate ND 50.0 51.02 ug/L 102 50 - 150
Vinyl chloride ND 50.0 53.76 ug/L 108 58 - 140
1,2-Dichloroethane-d4 (Surr) 70 - 123
Surrogate
100
MS MS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 101 80 - 120
Dibromofluoromethane (Surr) 99 78 - 120
Toluene-d8 (Surr) 100 80 - 120
Lab Sample ID: 570-87521-A-1 MSD Client Sample ID: Matrix Spike Duplicate Matrix: Water Prep Type: Total/NA
Analysis Batch: 221166
1,1,1,2-Tetrachloroethane ND 50.0 61.22 ug/L 122 75 - 138 3 20 Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane ND 50.0 59.09 ug/L 118 69 - 127 6 20 1,1,2,2-Tetrachloroethane ND 50.0 59.35 ug/L 119 75 - 133 5 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 50.0 46.30 ug/L 93 50 - 125 3 20
1,1,2-Trichloroethane ND 50.0 54.39 ug/L 109 75 - 125 1 20 1,1-Dichloroethane ND 50.0 54.00 ug/L 108 75 - 125 1 20 1,1-Dichloroethene ND 50.0 55.95 ug/L 112 57 - 135 3 20 1,1-Dichloropropene ND 50.0 53.67 ug/L 107 73 - 125 2 20 1,2,3-Trichlorobenzene ND 50.0 53.66 ug/L 107 73 - 136 8 20 1,2,3-Trichloropropane ND 50.0 58.91 ug/L 118 75 - 125 2 20 1,2,4-Trichlorobenzene ND 50.0 51.51 ug/L 103 69 - 136 8 20 1,2,4-Trimethylbenzene ND 50.0 55.06 ug/L 110 75 - 131 7 20 1,2-Dibromo-3-Chloropropane ND F1 50.0 64.33 F1 ug/L 129 65 - 128 5 20 1,2-Dibromoethane ND 50.0 57.18 ug/L 114 75 - 125 2 20
1,2-Dichlorobenzene ND 50.0 54.02 ug/L 108 75 - 125 6 20 1,2-Dichloroethane ND 50.0 52.82 ug/L 106 75 - 127 0 20 1,2-Dichloropropane ND 50.0 53.54 ug/L 107 75 - 126 2 20 1,3,5-Trimethylbenzene ND 50.0 53.68 ug/L 107 75 - 129 3 20 1,3-Dichlorobenzene ND 50.0 53.12 ug/L 106 75 - 125 7 20 1,3-Dichloropropane ND 50.0 53.72 ug/L 107 75 - 126 2 20 1,4-Dichlorobenzene ND 50.0 52.52 ug/L 105 75 - 125 6 20 2,2-Dichloropropane ND 50.0 53.59 ug/L 107 51 - 141 5 20 2-Butanone ND 50.0 60.00 ug/L 120 61 - 137 0 20
2-Chlorotoluene ND 50.0 52.33 ug/L 105 75 - 125 3 20
2-Hexanone ND 50.0 62.79 ug/L 126 60 - 155 3 20
4-Chlorotoluene ND 50.0 54.16 ug/L 108 75 - 130 7 20
4-Methyl-2-pentanone ND 50.0 62.00 ug/L 124 66 - 138 3 20 Eurofins Calscience

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MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Benzene ND 50.0 52.62 ug/L 105 75 - 125 2 20
Bromobenzene ND 50.0 53.80 ug/L 108 75 - 127 2 20
Bromochloromethane ND 50.0 52.20 ug/L 104 72 - 125 1 20 Bromodichloromethane ND 50.0 59.76 ug/L 120 75 - 129 3 20 Bromoform ND *+ 50.0 68.85 ug/L 138 65 - 146 7 20
Bromomethane ND 50.0 52.67 ug/L 105 51 - 146 0 23
cis-1,2-Dichloroethene ND 50.0 54.81 ug/L 110 57 - 142 2 20 cis-1,3-Dichloropropene ND 50.0 56.20 ug/L 112 73 - 128 2 20 Carbon disulfide ND 50.0 53.86 ug/L 108 67 - 129 2 20
Carbon tetrachloride ND 50.0 63.38 ug/L 127 68 - 137 7 20 Chlorobenzene ND 50.0 53.37 ug/L 107 75 - 125 3 20
Chloroethane ND 50.0 59.61 ug/L 119 60 - 145 0 20
Chloroform ND 50.0 53.94 ug/L 108 75 - 125 2 20
Chloromethane ND F1 50.0 72.86 F1 ug/L 146 56 - 142 1 20 Dibromochloromethane ND 50.0 65.15 ug/L 130 74 - 140 4 20 Dibromomethane ND 50.0 55.18 ug/L 110 75 - 125 0 20
Dichlorodifluoromethane ND *+ F1 50.0 80.26 E F1 ug/L 161 51 - 128 5 20 Ethylbenzene ND 50.0 54.29 ug/L 109 75 - 127 4 20
Isopropylbenzene ND 50.0 53.65 ug/L 107 75 - 130 3 20
Methylene Chloride ND 50.0 51.47 ug/L 103 70 - 125 1 20 Methyl-t-Butyl Ether (MTBE) ND 50.0 50.79 ug/L 102 65 - 125 4 20 Naphthalene ND 50.0 55.68 ug/L 111 75 - 134 6 20
n-Butylbenzene ND 50.0 51.88 ug/L 104 71 - 137 8 20
N-Propylbenzene ND 50.0 52.35 ug/L 105 75 - 129 3 20
o-Xylene ND 50.0 54.16 ug/L 108 75 - 128 4 20
m,p-Xylene ND 100 106.1 ug/L 106 75 - 128 3 20
p-Isopropyltoluene ND 50.0 53.89 ug/L 108 74 - 135 7 20 sec-Butylbenzene ND 50.0 53.60 ug/L 107 75 - 132 7 20
Styrene ND 50.0 55.10 ug/L 110 75 - 129 3 20
trans-1,2-Dichloroethene ND 50.0 52.95 ug/L 106 70 - 125 1 20 trans-1,3-Dichloropropene ND 50.0 59.76 ug/L 120 69 - 144 4 20 tert-Butylbenzene ND 50.0 53.86 ug/L 108 75 - 132 8 20
Tetrachloroethene ND 50.0 55.42 ug/L 111 54 - 149 3 20
Toluene ND 50.0 53.75 ug/L 108 75 - 125 2 20
Trichloroethene ND 50.0 54.73 ug/L 109 68 - 128 2 20
Trichlorofluoromethane ND 50.0 53.99 ug/L 108 54 - 150 1 20 Vinyl acetate ND 50.0 53.74 ug/L 107 50 - 150 5 20
Vinyl chloride ND 50.0 54.07 ug/L 108 58 - 140 1 20
1,2-Dichloroethane-d4 (Surr) 70 - 123
Surrogate
99 MSD MSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 100 80 - 120
Dibromofluoromethane (Surr) 99 78 - 120
Toluene-d8 (Surr) 100 80 - 120
Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: LCS 570-221166/4 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA
1,1,1,2-Tetrachloroethane 50.0 61.06 ug/L 122 80 - 128
Analyte

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

Limits
ME %Rec.

Limits
72 - 136
Marginal Exceedance
Status
1,1,1-Trichloroethane 50.0 57.34 ug/L 115 76 - 122 68 - 130 1,1,2,2-Tetrachloroethane 50.0 54.62 ug/L 109 79 - 120 72 - 127 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 53.45 ug/L 107 53 - 122 42 - 134
1,1,2-Trichloroethane 50.0 51.96 ug/L 104 80 - 120 73 - 127 1,1-Dichloroethane 50.0 53.17 ug/L 106 72 - 120 64 - 128 1,1-Dichloroethene 50.0 53.51 ug/L 107 64 - 121 55 - 131 1,1-Dichloropropene 50.0 52.19 ug/L 104 77 - 120 70 - 127 1,2,3-Trichlorobenzene 50.0 49.99 ug/L 100 78 - 136 68 - 146 1,2,3-Trichloropropane 50.0 55.07 ug/L 110 74 - 120 66 - 128 1,2,4-Trichlorobenzene 50.0 49.56 ug/L 99 73 - 138 62 - 149 1,2,4-Trimethylbenzene 50.0 53.49 ug/L 107 80 - 121 73 - 128 1,2-Dibromo-3-Chloropropane 50.0 60.23 ug/L 120 74 - 120 66 - 128 1,2-Dibromoethane 50.0 54.47 ug/L 109 80 - 120 73 - 127 1,2-Dichlorobenzene 50.0 52.11 ug/L 104 80 - 120 73 - 127 1,2-Dichloroethane 50.0 50.11 ug/L 100 76 - 120 69 - 127 1,2-Dichloropropane 50.0 51.94 ug/L 104 73 - 122 65 - 130 1,3,5-Trimethylbenzene 50.0 51.60 ug/L 103 80 - 122 73 - 129 1,3-Dichlorobenzene 50.0 51.54 ug/L 103 80 - 120 73 - 127 1,3-Dichloropropane 50.0 50.88 ug/L 102 80 - 120 73 - 127 1,4-Dichlorobenzene 50.0 50.93 ug/L 102 80 - 120 73 - 127 2,2-Dichloropropane 50.0 67.87 ug/L 136 60 - 150 45 - 165 2-Butanone 50.0 52.14 ug/L 104 65 - 128 55 - 139
2-Chlorotoluene 50.0 50.62 ug/L 101 79 - 120 72 - 127
2-Hexanone 50.0 55.08 ug/L 110 61 - 140 48 - 153
4-Chlorotoluene 50.0 52.48 ug/L 105 80 - 120 73 - 127
4-Methyl-2-pentanone 50.0 55.11 ug/L 110 68 - 133 57 - 144 Acetone 50.0 50.87 ug/L 102 50 - 134 36 - 148
Benzene 50.0 50.63 ug/L 101 76 - 120 69 - 127
Bromobenzene 50.0 51.95 ug/L 104 80 - 125 73 - 133
Bromochloromethane 50.0 50.62 ug/L 101 79 - 120 72 - 127 Bromodichloromethane 50.0 58.02 ug/L 116 80 - 123 73 - 130 Bromoform 50.0 67.55 *+ me ug/L 135 80 - 128 72 - 136 ME Bromomethane 20.0 20.47 J ug/L 102 64 - 150 50 - 164
cis-1,2-Dichloroethene 50.0 53.12 ug/L 106 80 - 120 73 - 127 cis-1,3-Dichloropropene 50.0 57.89 ug/L 116 75 - 133 65 - 143 Carbon disulfide 50.0 53.25 ug/L 106 67 - 126 57 - 136
Carbon tetrachloride 50.0 63.03 ug/L 126 80 - 127 72 - 135 Chlorobenzene 50.0 51.33 ug/L 103 80 - 120 73 - 127
Chloroethane 20.0 21.96 ug/L 110 67 - 128 57 - 138
Chloroform 50.0 52.52 ug/L 105 80 - 120 73 - 127
Chloromethane 20.0 24.66 ug/L 123 69 - 132 59 - 143
Dibromochloromethane 50.0 63.57 ug/L 127 79 - 130 71 - 139 Dibromomethane 50.0 52.41 ug/L 105 80 - 120 73 - 127
Dichlorodifluoromethane 20.0 38.17 *+ ug/L 191 60 - 138 47 - 151 X Ethylbenzene 50.0 52.22 ug/L 104 80 - 120 73 - 127
Isopropylbenzene 50.0 51.60 ug/L 103 80 - 123 73 - 130
Methylene Chloride 50.0 49.86 ug/L 100 62 - 133 50 - 145 Methyl-t-Butyl Ether (MTBE) 50.0 51.38 ug/L 103 64 - 120 55 - 129 Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-221166/4 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA
Naphthalene 50.0 51.01 ug/L 102 80 - 120
Analyte

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

Limits
ME %Rec.

Limits
73 - 127
Marginal Exceedance
Status
n-Butylbenzene 50.0 50.67 ug/L 101 76 - 128 67 - 137
N-Propylbenzene 50.0 50.29 ug/L 101 80 - 122 73 - 129
o-Xylene 50.0 52.11 ug/L 104 80 - 121 73 - 128
m,p-Xylene 100 102.7 ug/L 103 74 - 122 66 - 130
p-Isopropyltoluene 50.0 52.34 ug/L 105 78 - 125 70 - 133 sec-Butylbenzene 50.0 51.50 ug/L 103 78 - 125 70 - 133
Styrene 50.0 53.64 ug/L 107 80 - 124 73 - 131
trans-1,2-Dichloroethene 50.0 52.79 ug/L 106 73 - 120 65 - 128 trans-1,3-Dichloropropene 50.0 61.57 ug/L 123 80 - 132 71 - 141 tert-Butylbenzene 50.0 51.35 ug/L 103 76 - 132 67 - 141 Tetrachloroethene 50.0 53.14 ug/L 106 72 - 135 62 - 146 Toluene 50.0 51.87 ug/L 104 76 - 120 69 - 127
Trichloroethene 50.0 52.85 ug/L 106 80 - 122 73 - 129
Trichlorofluoromethane 20.0 17.22 ug/L 86 69 - 139 57 - 151 Vinyl acetate 50.0 60.14 ug/L 120 74 - 147 62 - 159
Vinyl chloride 20.0 20.69 ug/L 103 70 - 124 61 - 133
Summary
Number of
Analytes Reported
66 Number of Marginal
Exceedances Allowed
3 Number of Marginal
Exceedances Found
1 ME = Marginal Exceedance
X = % Recovery is greater than widest possible limit
Lab Sample ID: LCSD 570-221166/5 Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA
1,1,1,2-Tetrachloroethane 50.0 58.16 ug/L 116 80 - 128
Analyte

LCSD LCSD
Result Qualifier Unit %Rec
Spike
Added
%Rec.

Limits
ME %Rec.

Limits
72 - 136
Marginal Exceedance
Status
1,1,1-Trichloroethane 50.0 54.45 ug/L 109 76 - 122 68 - 130 1,1,2,2-Tetrachloroethane 50.0 52.29 ug/L 105 79 - 120 72 - 127 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 49.57 ug/L 99 53 - 122 42 - 134
1,1,2-Trichloroethane 50.0 50.48 ug/L 101 80 - 120 73 - 127 1,1-Dichloroethane 50.0 50.36 ug/L 101 72 - 120 64 - 128 1,1-Dichloroethene 50.0 49.92 ug/L 100 64 - 121 55 - 131 1,1-Dichloropropene 50.0 48.77 ug/L 98 77 - 120 70 - 127 1,2,3-Trichlorobenzene 50.0 48.27 ug/L 97 78 - 136 68 - 146 1,2,3-Trichloropropane 50.0 53.36 ug/L 107 74 - 120 66 - 128 1,2,4-Trichlorobenzene 50.0 47.39 ug/L 95 73 - 138 62 - 149 1,2,4-Trimethylbenzene 50.0 50.77 ug/L 102 80 - 121 73 - 128 1,2-Dibromo-3-Chloropropane 50.0 58.07 ug/L 116 74 - 120 66 - 128 1,2-Dibromoethane 50.0 52.23 ug/L 104 80 - 120 73 - 127 1,2-Dichlorobenzene 50.0 49.58 ug/L 99 80 - 120 73 - 127 1,2-Dichloroethane 50.0 48.41 ug/L 97 76 - 120 69 - 127 1,2-Dichloropropane 50.0 49.95 ug/L 100 73 - 122 65 - 130 1,3,5-Trimethylbenzene 50.0 48.82 ug/L 98 80 - 122 73 - 129 1,3-Dichlorobenzene 50.0 49.05 ug/L 98 80 - 120 73 - 127 1,3-Dichloropropane 50.0 49.48 ug/L 99 80 - 120 73 - 127 Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-221166/5 Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA
1,4-Dichlorobenzene 50.0 48.16 ug/L 96 80 - 120
Analyte

LCSD LCSD
Result Qualifier Unit %Rec
Spike
Added
%Rec.

Limits
ME %Rec.

Limits
73 - 127
Marginal Exceedance
Status
2,2-Dichloropropane 50.0 62.60 ug/L 125 60 - 150 45 - 165 2-Butanone 50.0 52.35 ug/L 105 65 - 128 55 - 139
2-Chlorotoluene 50.0 47.78 ug/L 96 79 - 120 72 - 127
2-Hexanone 50.0 52.45 ug/L 105 61 - 140 48 - 153
4-Chlorotoluene 50.0 49.57 ug/L 99 80 - 120 73 - 127
4-Methyl-2-pentanone 50.0 53.59 ug/L 107 68 - 133 57 - 144 Acetone 50.0 50.34 ug/L 101 50 - 134 36 - 148
Benzene 50.0 47.81 ug/L 96 76 - 120 69 - 127
Bromobenzene 50.0 49.83 ug/L 100 80 - 125 73 - 133
Bromochloromethane 50.0 48.52 ug/L 97 79 - 120 72 - 127 Bromodichloromethane 50.0 55.68 ug/L 111 80 - 123 73 - 130 Bromoform 50.0 64.88 *+ me ug/L 130 80 - 128 72 - 136 ME Bromomethane 20.0 19.31 J ug/L 97 64 - 150 50 - 164
cis-1,2-Dichloroethene 50.0 50.71 ug/L 101 80 - 120 73 - 127 cis-1,3-Dichloropropene 50.0 55.88 ug/L 112 75 - 133 65 - 143 Carbon disulfide 50.0 49.24 ug/L 98 67 - 126 57 - 136
Carbon tetrachloride 50.0 58.51 ug/L 117 80 - 127 72 - 135 Chlorobenzene 50.0 48.71 ug/L 97 80 - 120 73 - 127
Chloroethane 20.0 20.93 ug/L 105 67 - 128 57 - 138
Chloroform 50.0 49.93 ug/L 100 80 - 120 73 - 127
Chloromethane 20.0 22.80 ug/L 114 69 - 132 59 - 143
Dibromochloromethane 50.0 61.60 ug/L 123 79 - 130 71 - 139 Dibromomethane 50.0 50.92 ug/L 102 80 - 120 73 - 127
Dichlorodifluoromethane 20.0 34.28 *+ ug/L 171 60 - 138 47 - 151 X Ethylbenzene 50.0 49.36 ug/L 99 80 - 120 73 - 127
Isopropylbenzene 50.0 48.31 ug/L 97 80 - 123 73 - 130
Methylene Chloride 50.0 47.84 ug/L 96 62 - 133 50 - 145 Methyl-t-Butyl Ether (MTBE) 50.0 50.40 ug/L 101 64 - 120 55 - 129 Naphthalene 50.0 48.92 ug/L 98 80 - 120 73 - 127
n-Butylbenzene 50.0 46.76 ug/L 94 76 - 128 67 - 137
N-Propylbenzene 50.0 47.53 ug/L 95 80 - 122 73 - 129
o-Xylene 50.0 49.59 ug/L 99 80 - 121 73 - 128
m,p-Xylene 100 96.92 ug/L 97 74 - 122 66 - 130
p-Isopropyltoluene 50.0 48.69 ug/L 97 78 - 125 70 - 133 sec-Butylbenzene 50.0 47.97 ug/L 96 78 - 125 70 - 133
Styrene 50.0 50.95 ug/L 102 80 - 124 73 - 131
trans-1,2-Dichloroethene 50.0 48.88 ug/L 98 73 - 120 65 - 128 trans-1,3-Dichloropropene 50.0 58.78 ug/L 118 80 - 132 71 - 141 tert-Butylbenzene 50.0 48.02 ug/L 96 76 - 132 67 - 141
Tetrachloroethene 50.0 50.00 ug/L 100 72 - 135 62 - 146 Toluene 50.0 49.05 ug/L 98 76 - 120 69 - 127
Trichloroethene 50.0 50.00 ug/L 100 80 - 122 73 - 129
Trichlorofluoromethane 20.0 17.37 ug/L 87 69 - 139 57 - 151 Vinyl acetate 50.0 58.42 ug/L 117 74 - 147 62 - 159
Vinyl chloride 20.0 18.72 ug/L 94 70 - 124 61 - 133
Summary
Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Number of
Analytes Reported
66 Number of Marginal
Exceedances Allowed
3 Number of Marginal
Exceedances Found
1 ME = Marginal Exceedance
X = % Recovery is greater than widest possible limit
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A

GC/MS VOA
Analysis Batch: 219835
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-12 DGA-016-5 Total/NA Solid 8260B 219929
570-87413-13 DGA-016-10 Total/NA Solid 8260B 219929
570-87413-14 DGA-019-1 Total/NA Solid 8260B 219929
570-87413-16 DGA-019-10 Total/NA Solid 8260B 219929
570-87413-17 DGA-017-1 Total/NA Solid 8260B 219929
570-87413-18 DGA-017-5 Total/NA Solid 8260B 219929
570-87413-19 DGA-017-10 Total/NA Solid 8260B 219929
570-87413-21 DGA-021-1 Total/NA Solid 8260B 219929
570-87413-22 DGA-021-5 Total/NA Solid 8260B 219929
570-87413-23 DGA-021-10 Total/NA Solid 8260B 219929
570-87413-25 DGA-022-1 Total/NA Solid 8260B 219929
570-87413-26 DGA-022-5 Total/NA Solid 8260B 219929
570-87413-27 DGA-022-10 Total/NA Solid 8260B 219929
MB 570-219929/3-A Method Blank Total/NA Solid 8260B 219929 LCS 570-219929/1-A Lab Control Sample Total/NA Solid 8260B 219929 LCSD 570-219929/2-A Lab Control Sample Dup Total/NA Solid 8260B 219929 570-87413-21 MS DGA-021-1 Total/NA Solid 8260B 219929
570-87413-21 MSD DGA-021-1 Total/NA Solid 8260B 219929
Analysis Batch: 219837
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-1 DGA-013-1 Total/NA Solid 8260B 219962
570-87413-2 DGA-013-5 Total/NA Solid 8260B 219962
570-87413-3 DGA-013-10 Total/NA Solid 8260B 219962
570-87413-4 DGA-015-1 Total/NA Solid 8260B 219962
570-87413-5 DGA-015-5 Total/NA Solid 8260B 219962
570-87413-6 DGA-015-10 Total/NA Solid 8260B 219962
570-87413-7 DGA-014-3.5 Total/NA Solid 8260B 219962
570-87413-8 DGA-014-5 Total/NA Solid 8260B 219962
570-87413-9 DGA-014-10 Total/NA Solid 8260B 219962
570-87413-15 DGA-019-6.5 Total/NA Solid 8260B 219962
MB 570-219962/3-A Method Blank Total/NA Solid 8260B 219962 LCS 570-219962/1-A Lab Control Sample Total/NA Solid 8260B 219962 LCSD 570-219962/2-A Lab Control Sample Dup Total/NA Solid 8260B 219962 570-87413-15 MS DGA-019-6.5 Total/NA Solid 8260B 219962 570-87413-15 MSD DGA-019-6.5 Total/NA Solid 8260B 219962 Prep Batch: 219929
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-12 DGA-016-5 Total/NA Solid 5030C
570-87413-13 DGA-016-10 Total/NA Solid 5030C
570-87413-14 DGA-019-1 Total/NA Solid 5030C
570-87413-16 DGA-019-10 Total/NA Solid 5030C
570-87413-17 DGA-017-1 Total/NA Solid 5030C
570-87413-18 DGA-017-5 Total/NA Solid 5030C
570-87413-19 DGA-017-10 Total/NA Solid 5030C
570-87413-21 DGA-021-1 Total/NA Solid 5030C
570-87413-22 DGA-021-5 Total/NA Solid 5030C
570-87413-23 DGA-021-10 Total/NA Solid 5030C
570-87413-25 DGA-022-1 Total/NA Solid 5030C
570-87413-26 DGA-022-5 Total/NA Solid 5030C
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
GC/MS VOA (Continued)
Prep Batch: 219929 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-27 DGA-022-10 Total/NA Solid 5030C
MB 570-219929/3-A Method Blank Total/NA Solid 5030C
LCS 570-219929/1-A Lab Control Sample Total/NA Solid 5030C LCSD 570-219929/2-A Lab Control Sample Dup Total/NA Solid 5030C 570-87413-21 MS DGA-021-1 Total/NA Solid 5030C
570-87413-21 MSD DGA-021-1 Total/NA Solid 5030C
Prep Batch: 219962
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-1 DGA-013-1 Total/NA Solid 5030C
570-87413-2 DGA-013-5 Total/NA Solid 5030C
570-87413-3 DGA-013-10 Total/NA Solid 5030C
570-87413-4 DGA-015-1 Total/NA Solid 5030C
570-87413-5 DGA-015-5 Total/NA Solid 5030C
570-87413-6 DGA-015-10 Total/NA Solid 5030C
570-87413-7 DGA-014-3.5 Total/NA Solid 5030C
570-87413-8 DGA-014-5 Total/NA Solid 5030C
570-87413-9 DGA-014-10 Total/NA Solid 5030C
570-87413-15 DGA-019-6.5 Total/NA Solid 5030C
MB 570-219962/3-A Method Blank Total/NA Solid 5030C
LCS 570-219962/1-A Lab Control Sample Total/NA Solid 5030C LCSD 570-219962/2-A Lab Control Sample Dup Total/NA Solid 5030C 570-87413-15 MS DGA-019-6.5 Total/NA Solid 5030C
570-87413-15 MSD DGA-019-6.5 Total/NA Solid 5030C
Prep Batch: 220192
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-11 DGA-016-1 Total/NA Solid 5030C
MB 570-220192/3-A Method Blank Total/NA Solid 5030C
LCS 570-220192/4-A Lab Control Sample Total/NA Solid 5030C LCSD 570-220192/5-A Lab Control Sample Dup Total/NA Solid 5030C 570-88311-A-1-E MS Matrix Spike Total/NA Solid 5030C
570-88311-A-1-F MSD Matrix Spike Duplicate Total/NA Solid 5030C Analysis Batch: 220282
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-11 DGA-016-1 Total/NA Solid 8260B 220192
MB 570-220192/3-A Method Blank Total/NA Solid 8260B 220192 LCS 570-220192/4-A Lab Control Sample Total/NA Solid 8260B 220192 LCSD 570-220192/5-A Lab Control Sample Dup Total/NA Solid 8260B 220192 570-88311-A-1-E MS Matrix Spike Total/NA Solid 8260B 220192 570-88311-A-1-F MSD Matrix Spike Duplicate Total/NA Solid 8260B 220192 Analysis Batch: 221166
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87413-10 DGA-012-20-GW Total/NA Water 8260B
570-87413-20 DGA-018-20-GW Total/NA Water 8260B
570-87413-24 DGA-020-20-GW Total/NA Water 8260B
570-87413-28 Trip Blank Total/NA Water 8260B
MB 570-221166/8 Method Blank Total/NA Water 8260B
LCS 570-221166/4 Lab Control Sample Total/NA Water 8260B Eurofins Calscience

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15 QC Association Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
GC/MS VOA (Continued)
Analysis Batch: 221166 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch LCSD 570-221166/5 Lab Control Sample Dup Total/NA Water 8260B 570-87521-A-1 MS Matrix Spike Total/NA Water 8260B
570-87521-A-1 MSD Matrix Spike Duplicate Total/NA Water 8260B Eurofins Calscience

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15 Lab Chronicle
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-013-1 Lab Sample ID: 570-87413-1
Date Collected: 03/09/22 08:50 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.07 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 15:26 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-013-5 Lab Sample ID: 570-87413-2
Date Collected: 03/09/22 08:52 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.08 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 15:46 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-013-10 Lab Sample ID: 570-87413-3 Date Collected: 03/09/22 08:54 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.09 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 16:08 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-015-1 Lab Sample ID: 570-87413-4
Date Collected: 03/09/22 09:15 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.05 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 16:28 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-015-5 Lab Sample ID: 570-87413-5
Date Collected: 03/09/22 09:17 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.01 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 16:49 U4JL ECL 4 Instrument ID: GCMSQ
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-015-10 Lab Sample ID: 570-87413-6 Date Collected: 03/09/22 09:19 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.12 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 17:10 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-014-3.5 Lab Sample ID: 570-87413-7 Date Collected: 03/09/22 09:53 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.13 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 17:30 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-014-5 Lab Sample ID: 570-87413-8
Date Collected: 03/09/22 09:55 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.02 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 17:51 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-014-10 Lab Sample ID: 570-87413-9 Date Collected: 03/09/22 09:57 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.00 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 18:12 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-012-20-GW Lab Sample ID: 570-87413-10 Date Collected: 03/09/22 10:59 Matrix: Water
Date Received: 03/09/22 18:30
Analysis 8260B 2 221166 03/21/22 23:11 KHF2 ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5 mL 5 mL
Instrument ID: GCMSXX
Client Sample ID: DGA-016-1 Lab Sample ID: 570-87413-11 Date Collected: 03/09/22 11:28 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 220192 03/17/22 08:46 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.10 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220282 03/17/22 13:56 AH8S ECL 4 Instrument ID: GCMSLL
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-016-5 Lab Sample ID: 570-87413-12 Date Collected: 03/09/22 11:30 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.05 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 15:32 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-016-10 Lab Sample ID: 570-87413-13 Date Collected: 03/09/22 11:32 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.01 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 15:58 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-019-1 Lab Sample ID: 570-87413-14 Date Collected: 03/09/22 11:51 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.09 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 16:23 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-019-6.5 Lab Sample ID: 570-87413-15 Date Collected: 03/09/22 11:53 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219962 03/16/22 11:58 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.01 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219837 03/16/22 14:03 U4JL ECL 4 Instrument ID: GCMSQ
Client Sample ID: DGA-019-10 Lab Sample ID: 570-87413-16 Date Collected: 03/09/22 11:55 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.02 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 16:49 OH1 ECL 4 Instrument ID: GCMSLL
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-017-1 Lab Sample ID: 570-87413-17 Date Collected: 03/09/22 12:16 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.00 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 17:15 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-017-5 Lab Sample ID: 570-87413-18 Date Collected: 03/09/22 12:18 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.05 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 17:41 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-017-10 Lab Sample ID: 570-87413-19 Date Collected: 03/09/22 12:20 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.08 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 18:06 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-018-20-GW Lab Sample ID: 570-87413-20 Date Collected: 03/09/22 13:33 Matrix: Water
Date Received: 03/09/22 18:30
Analysis 8260B 1 221166 03/22/22 00:01 KHF2 ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5 mL 5 mL
Instrument ID: GCMSXX
Client Sample ID: DGA-021-1 Lab Sample ID: 570-87413-21 Date Collected: 03/09/22 14:13 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.09 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 13:24 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-021-5 Lab Sample ID: 570-87413-22 Date Collected: 03/09/22 14:15 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.04 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 18:32 OH1 ECL 4 Instrument ID: GCMSLL
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-021-10 Lab Sample ID: 570-87413-23 Date Collected: 03/09/22 14:17 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.11 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 18:58 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-020-20-GW Lab Sample ID: 570-87413-24 Date Collected: 03/09/22 14:43 Matrix: Water
Date Received: 03/09/22 18:30
Analysis 8260B 2 221166 03/21/22 23:36 KHF2 ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5 mL 5 mL
Instrument ID: GCMSXX
Client Sample ID: DGA-022-1 Lab Sample ID: 570-87413-25 Date Collected: 03/09/22 15:40 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.00 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 19:23 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-022-5 Lab Sample ID: 570-87413-26 Date Collected: 03/09/22 15:42 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.02 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 19:49 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-022-10 Lab Sample ID: 570-87413-27 Date Collected: 03/09/22 15:44 Matrix: Solid
Date Received: 03/09/22 18:30
Prep 5030C 219929 03/16/22 10:18 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.01 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 219835 03/16/22 20:14 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: Trip Blank Lab Sample ID: 570-87413-28 Date Collected: 03/09/22 00:00 Matrix: Water
Date Received: 03/09/22 18:30
Analysis 8260B 1 221166 03/21/22 22:47 KHF2 ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5 mL 5 mL
Instrument ID: GCMSXX
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Laboratory References:

ECL 4 = Eurofins Calscience Tustin, 2841 Dow Avenue, Tustin, CA 92780, TEL (714)895-5494 Eurofins Calscience

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15 Accreditation/Certification Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Laboratory: Eurofins Calscience
The accreditations/certifications listed below are applicable to this report.

Authority Program Identification Number Expiration Date California State 2944 09-30-22
Oregon NELAP CA300001 01-31-23
Eurofins Calscience

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15 Method Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Method Method Description Protocol Laboratory
8260B Volatile Organic Compounds (GC/MS) SW846 ECL 4
5030C Purge and Trap SW846 ECL 4
Protocol References:

SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.

Laboratory References:

ECL 4 = Eurofins Calscience Tustin, 2841 Dow Avenue, Tustin, CA 92780, TEL (714)895-5494 Eurofins Calscience

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15 Sample Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87413-1
Project/Site: Rohr Chula Vista - Parcel A
Lab Sample ID Client Sample ID Matrix Collected Received 570-87413-1 DGA-013-1 Solid 03/09/22 08:50 03/09/22 18:30 570-87413-2 DGA-013-5 Solid 03/09/22 08:52 03/09/22 18:30 570-87413-3 DGA-013-10 Solid 03/09/22 08:54 03/09/22 18:30 570-87413-4 DGA-015-1 Solid 03/09/22 09:15 03/09/22 18:30 570-87413-5 DGA-015-5 Solid 03/09/22 09:17 03/09/22 18:30 570-87413-6 DGA-015-10 Solid 03/09/22 09:19 03/09/22 18:30 570-87413-7 DGA-014-3.5 Solid 03/09/22 09:53 03/09/22 18:30 570-87413-8 DGA-014-5 Solid 03/09/22 09:55 03/09/22 18:30 570-87413-9 DGA-014-10 Solid 03/09/22 09:57 03/09/22 18:30 570-87413-10 DGA-012-20-GW Water 03/09/22 10:59 03/09/22 18:30 570-87413-11 DGA-016-1 Solid 03/09/22 11:28 03/09/22 18:30 570-87413-12 DGA-016-5 Solid 03/09/22 11:30 03/09/22 18:30 570-87413-13 DGA-016-10 Solid 03/09/22 11:32 03/09/22 18:30 570-87413-14 DGA-019-1 Solid 03/09/22 11:51 03/09/22 18:30 570-87413-15 DGA-019-6.5 Solid 03/09/22 11:53 03/09/22 18:30 570-87413-16 DGA-019-10 Solid 03/09/22 11:55 03/09/22 18:30 570-87413-17 DGA-017-1 Solid 03/09/22 12:16 03/09/22 18:30 570-87413-18 DGA-017-5 Solid 03/09/22 12:18 03/09/22 18:30 570-87413-19 DGA-017-10 Solid 03/09/22 12:20 03/09/22 18:30 570-87413-20 DGA-018-20-GW Water 03/09/22 13:33 03/09/22 18:30 570-87413-21 DGA-021-1 Solid 03/09/22 14:13 03/09/22 18:30 570-87413-22 DGA-021-5 Solid 03/09/22 14:15 03/09/22 18:30 570-87413-23 DGA-021-10 Solid 03/09/22 14:17 03/09/22 18:30 570-87413-24 DGA-020-20-GW Water 03/09/22 14:43 03/09/22 18:30 570-87413-25 DGA-022-1 Solid 03/09/22 15:40 03/09/22 18:30 570-87413-26 DGA-022-5 Solid 03/09/22 15:42 03/09/22 18:30 570-87413-27 DGA-022-10 Solid 03/09/22 15:44 03/09/22 18:30 570-87413-28 Trip Blank Water 03/09/22 00:00 03/09/22 18:30

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Patel, Virendra
From: Scott, Bob <[email protected]>
Sent: Thursday, March 10, 2022 12:24 PM
To: Patel, Virendra; March, Heather; Foster, Keith; Samara, Nidal Subject: RE: <RESPONSE REQUESTED> Eurofins Calscience sample confirmation files from 570-87413-1 Rohr Chula Vista - Parcel A
EXTERNAL EMAIL*

Hi Virendra,
Please go ahead and analyze the trip blank. Thank you,
Bob
From: Virendra Patel <[email protected]>
Sent: Thursday, March 10, 2022 11:16 AM
To: Scott, Bob <[email protected]>; March, Heather <[email protected]>; Foster, Keith <[email protected]>; Samara, Nidal <[email protected]>; Patel Virendra <[email protected]>
Subject: <RESPONSE REQUESTED> Eurofins Calscience sample confirmation files from 570‐87413‐1 Rohr Chula Vista ‐ Parcel A
Importance: High
CAUTION: External Email
Hello,
Attached please find the sample confirmation files for job 570‐87413‐1; Rohr Chula Vista ‐ Parcel A A trip blank was submitted for analysis with these samples; however, it was not listed on the Chain of Custody (COC).

ACTION ‐‐ please advise if this trip blank needs to be analyzed or not.

Please feel free to contact me if you have any questions.

Thank you.

Virendra Patel
Project Manager
Eurofins Calscience

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Phone: 714‐895‐5494
E‐mail: [email protected]
www.eurofinsus.com/env

Reference: [570-297298]
Attachments: 2
> > Bank information has changed, please refer to remittance information on invoice. < <

* WARNING ‐ EXTERNAL: This email originated from outside of Eurofins Environment Testing America. Do not click any links or open any attachments unless you trust the sender and know that the content is safe!

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10 Login Sample Receipt Checklist
Client: Haley & Aldrich, Inc. Job Number: 570-87413-1
Login Number: 87413
Question Answer Comment
Creator: Lagunas, Jorge L
List Source: Eurofins Calscience
List Number: 1
Radioactivity wasn't checked or is </= background as measured by a survey N/A meter.

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

Samples were received on ice. True
Cooler Temperature is acceptable. True
Cooler Temperature is recorded. True
COC is present. True
COC is filled out in ink and legible. True
COC is filled out with all pertinent information. True
Is the Field Sampler's name present on COC? True
There are no discrepancies between the containers received and the COC. False Received Trip Blank(s) not listed on COC.

Samples are received within Holding Time (excluding tests with immediate True HTs)
Sample containers have legible labels. True
Containers are not broken or leaking. True
Sample collection date/times are provided. True
Appropriate sample containers are used. True
Sample bottles are completely filled. True
Sample Preservation Verified. True
There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs
Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4").

Multiphasic samples are not present. True
Samples do not require splitting or compositing. True
Residual Chlorine Checked. N/A
Eurofins Calscience Page 104 of 104 3/22/2022
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15 ANALYTICAL REPORT
Eurofins Calscience
2841 Dow Avenue, Suite 100
Tustin, CA 92780
Tel: (714)895-5494
Laboratory Job ID: 570-87522-1
Client Project/Site: Rohr Chula Vista - Parcel A
For:

Haley & Aldrich, Inc.
5333 Mission Center Road
Suite 300
San Diego, California 92108
Attn: Bob Scott
Authorized for release by:
3/24/2022 5:24:54 PM
Don Burley, Senior Project Manager
(657)212-3033
[email protected]
Designee for
Virendra Patel, Project Manager I
(714)895-5494
[email protected]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2
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15 Table of Contents
Client: Haley & Aldrich, Inc.

Project/Site: Rohr Chula Vista - Parcel A
Laboratory Job ID: 570-87522-1

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Eurofins Calscience
3/24/2022
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 1 2
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15 Definitions/Glossary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Qualifiers

GC/MS VOA
Qualifier Description
*+ LCS and/or LCSD is outside acceptance limits, high biased.

Qualifier
*3 ISTD response or retention time outside acceptable limits.

F1 MS and/or MSD recovery exceeds control limits.

F2 MS/MSD RPD exceeds control limits
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. me LCS Recovery is within Marginal Exdeedance (ME) control limit range (± 4 SD from the mean).

Glossary
These commonly used abbreviations may or may not be present in this report. ¤ Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Calscience

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15 Case Narrative
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Job ID: 570-87522-1
Laboratory: Eurofins Calscience
Narrative
Job Narrative
570-87522-1
Comments
No additional comments.

Receipt
The samples were received on 3/10/2022 6:20 PM. Unless otherwise noted below, the samples arrived in good condition, and where required, properly preserved and on ice. The temperature of the cooler at receipt was 0.9º C.

GC/MS VOA
Method 8260B: The matrix spike / matrix spike duplicate (MS/MSD) recoveries and precision for preparation batch 570-220539 and analytical batch 570-220591 were outside control limits. Sample matrix interference and/or non-homogeneity are suspected because the associated laboratory control sample / laboratory sample control duplicate (LCS/LCSD) precision was within acceptance limits.

Method 8260B: The following analyte recovered outside control limits for the LCS/LCSD associated with preparation batch 570-220539 and analytical batch 570-220591: 4-Methyl-2-pentanone. This is not indicative of a systematic control problem because this was a random marginal exceedance. Qualified results have been reported.

Method 8260B: Internal standard responses were outside of acceptance limits for the following matrix spike (MS): (570-87522-A-7-B MS).

The sample shows evidence of matrix interference.

Method 8260B: Surrogate recovery was outside acceptance limits for the following matrix spike (MS) sample: (570-87522-A-7-B MS). The parent sample's surrogate recovery was within limits. The MS sample has been qualified and reported.

Method 8260B: The laboratory control sample (LCS) and laboratory control sample duplicate (LCSD) for analytical batch 570-221249 recovered outside control limits for Dichlorodifluoromethane. This analyte was biased high in the LCS and was not detected in the associated samples; therefore, the data have been reported.

Method 8260B: The following analyte recovered outside control limits for the LCS and/or LCSD associated with analytical batch 570-221249: Bromoform. This is not indicative of a systematic control problem because this was a random marginal exceedance.

Qualified results have been reported.

Method 8260B: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 570-221249. The laboratory control sample (LCS) was performed in duplicate (LCSD) to provide precision data for this batch.

Method 8260B: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 570-221559. The laboratory control sample (LCS) was performed in duplicate (LCSD) to provide precision data for this batch.

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

VOA Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Eurofins Calscience Page 4 of 58 3/24/2022
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15 Detection Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-024-1 Lab Sample ID: 570-87522-1
Chloroform
RL

0.98 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type

1.3 1 8260B Total/NA
Trichloroethene - DL 430 200 ug/Kg 50 8260B Total/NA
Client Sample ID: DGA-024-3 Lab Sample ID: 570-87522-2
Trichloroethene
RL

2.0 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type 160 1 8260B Total/NA
Client Sample ID: DGA-024-4.5 Lab Sample ID: 570-87522-3 Chloroform
RL

0.98 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type

1.6 1 8260B Total/NA
Trichloroethene 41 2.0 ug/Kg 1 8260B Total/NA
Client Sample ID: DGA-025-1.5 Lab Sample ID: 570-87522-4 Acetone
RL
20 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type 22 1 8260B Total/NA
Chloroform 2.4 0.98 ug/Kg 1 8260B Total/NA
Tetrachloroethene 1.1 0.98 ug/Kg 1 8260B Total/NA
Trichloroethene - DL 580 400 ug/Kg 100 8260B Total/NA
Client Sample ID: DGA-025-3 Lab Sample ID: 570-87522-5
Trichloroethene
RL

2.0 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type 51 1 8260B Total/NA
Client Sample ID: DGA-025-5 Lab Sample ID: 570-87522-6
Chloroform
RL

0.98 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type

1.1 1 8260B Total/NA
Trichloroethene 33 2.0 ug/Kg 1 8260B Total/NA
Client Sample ID: DGA-026-3 Lab Sample ID: 570-87522-7
Trichloroethene
RL

2.0 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type

4.2 F2 1 8260B Total/NA
Client Sample ID: DGA-026-4.5 Lab Sample ID: 570-87522-8 Trichloroethene
RL

2.0 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type

4.5 1 8260B Total/NA
Client Sample ID: DGA-026-6 Lab Sample ID: 570-87522-9
Trichloroethene
RL

2.0 ug/Kg
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type

3.4 1 8260B Total/NA
Client Sample ID: DGA-005-20-GW Lab Sample ID: 570-87522-10 1,1-Dichloroethane
RL

1.0 ug/L
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type

6.8 1 8260B Total/NA
Acetone 24 20 ug/L 1 8260B Total/NA
cis-1,2-Dichloroethene 38 1.0 ug/L 1 8260B Total/NA
trans-1,2-Dichloroethene 1.4 1.0 ug/L 1 8260B Total/NA
Eurofins Calscience
This Detection Summary does not include radiochemical test results.

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-005-20-GW (Continued) Lab Sample ID: 570-87522-10 Trichloroethene - DL
RL
10 ug/L
Analyte Result Qualifier MDL Unit Dil Fac D Method Prep Type 340 10 8260B Total/NA
Client Sample ID: TB-1 Lab Sample ID: 570-87522-11
No Detections.

Eurofins Calscience
This Detection Summary does not include radiochemical test results.

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Client Sample ID: DGA-024-1 Lab Sample ID: 570-87522-1
Date Collected: 03/10/22 09:19 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,1,2-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,1-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,1-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2-Dibromo-3-Chloropropane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2-Dibromoethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,3-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,3-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,4-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 2,2-Dichloropropane ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
2-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
4-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
Benzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
Bromobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Bromodichloromethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Bromoform ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 cis-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 cis-1,3-Dichloropropene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Carbon disulfide ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Carbon tetrachloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Chlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Chloroform 1.3 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Dibromomethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Ethylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Isopropylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Methylene Chloride ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-024-1 Lab Sample ID: 570-87522-1
Date Collected: 03/10/22 09:19 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
Naphthalene ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac n-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 o-Xylene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 p-Isopropyltoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 sec-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Styrene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
trans-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 tert-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Tetrachloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Toluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1
Trichlorofluoromethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Vinyl acetate ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 Vinyl chloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 15:57 1 1,2-Dichloroethane-d4 (Surr) 98 64 - 141 03/18/22 08:53 03/18/22 15:57 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 106 76 - 120 03/18/22 08:53 03/18/22 15:57 1 Dibromofluoromethane (Surr) 89 47 - 142 03/18/22 08:53 03/18/22 15:57 1 Toluene-d8 (Surr) 104 80 - 120 03/18/22 08:53 03/18/22 15:57 1 Client Sample ID: DGA-024-3 Lab Sample ID: 570-87522-2
Date Collected: 03/10/22 09:21 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,1,2-Trichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,1-Dichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,1-Dichloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2-Dibromo-3-Chloropropane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2-Dibromoethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2-Dichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2-Dichloropropane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,3-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,3-Dichloropropane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,4-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 2,2-Dichloropropane ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-024-3 Lab Sample ID: 570-87522-2
Date Collected: 03/10/22 09:21 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
2-Chlorotoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
4-Chlorotoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
Benzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
Bromobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Bromodichloromethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Bromoform ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 cis-1,2-Dichloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 cis-1,3-Dichloropropene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Carbon disulfide ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Carbon tetrachloride ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Chlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Chloroform ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Dibromomethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Ethylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Isopropylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Methylene Chloride ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Naphthalene ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 n-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 o-Xylene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 p-Isopropyltoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 sec-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Styrene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
trans-1,2-Dichloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 tert-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Tetrachloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Toluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1
Trichloroethene 160 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Trichlorofluoromethane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Vinyl acetate ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 Vinyl chloride ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 16:22 1 1,2-Dichloroethane-d4 (Surr) 96 64 - 141 03/18/22 08:53 03/18/22 16:22 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 104 76 - 120 03/18/22 08:53 03/18/22 16:22 1 Dibromofluoromethane (Surr) 87 47 - 142 03/18/22 08:53 03/18/22 16:22 1 Toluene-d8 (Surr) 106 80 - 120 03/18/22 08:53 03/18/22 16:22 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Client Sample ID: DGA-024-4.5 Lab Sample ID: 570-87522-3 Date Collected: 03/10/22 09:23 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,1,2-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,1-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,1-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2-Dibromo-3-Chloropropane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2-Dibromoethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,3-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,3-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,4-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 2,2-Dichloropropane ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
2-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
4-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
Benzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
Bromobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Bromodichloromethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Bromoform ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 cis-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 cis-1,3-Dichloropropene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Carbon disulfide ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Carbon tetrachloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Chlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Chloroform 1.6 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Dibromomethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Ethylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Isopropylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Methylene Chloride ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-024-4.5 Lab Sample ID: 570-87522-3 Date Collected: 03/10/22 09:23 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
Naphthalene ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac n-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 o-Xylene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 p-Isopropyltoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 sec-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Styrene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
trans-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 tert-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Tetrachloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Toluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1
Trichloroethene 41 2.0 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Trichlorofluoromethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Vinyl acetate ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 Vinyl chloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 16:48 1 1,2-Dichloroethane-d4 (Surr) 100 64 - 141 03/18/22 08:53 03/18/22 16:48 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 107 76 - 120 03/18/22 08:53 03/18/22 16:48 1 Dibromofluoromethane (Surr) 90 47 - 142 03/18/22 08:53 03/18/22 16:48 1 Toluene-d8 (Surr) 104 80 - 120 03/18/22 08:53 03/18/22 16:48 1 Client Sample ID: DGA-025-1.5 Lab Sample ID: 570-87522-4 Date Collected: 03/10/22 08:58 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,1,2-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,1-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,1-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2-Dibromo-3-Chloropropane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2-Dibromoethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,3-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,3-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,4-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 2,2-Dichloropropane ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-025-1.5 Lab Sample ID: 570-87522-4 Date Collected: 03/10/22 08:58 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
4-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Acetone 22 20 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
Benzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
Bromobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Bromodichloromethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Bromoform ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 cis-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 cis-1,3-Dichloropropene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Carbon disulfide ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Carbon tetrachloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Chlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Chloroform 2.4 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Dibromomethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Ethylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Isopropylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Methylene Chloride ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Naphthalene ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 n-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 o-Xylene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 p-Isopropyltoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 sec-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Styrene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
trans-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 tert-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Tetrachloroethene 1.1 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Toluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1
Trichlorofluoromethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Vinyl acetate ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 Vinyl chloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 17:14 1 1,2-Dichloroethane-d4 (Surr) 97 64 - 141 03/18/22 08:53 03/18/22 17:14 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 103 76 - 120 03/18/22 08:53 03/18/22 17:14 1 Dibromofluoromethane (Surr) 89 47 - 142 03/18/22 08:53 03/18/22 17:14 1 Toluene-d8 (Surr) 105 80 - 120 03/18/22 08:53 03/18/22 17:14 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Client Sample ID: DGA-025-3 Lab Sample ID: 570-87522-5
Date Collected: 03/10/22 09:03 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,1,2-Trichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,1-Dichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,1-Dichloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2-Dibromo-3-Chloropropane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2-Dibromoethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2-Dichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2-Dichloropropane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,3-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,3-Dichloropropane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,4-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
2-Chlorotoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
4-Chlorotoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
Benzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
Bromobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Bromodichloromethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Bromoform ND 5.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 cis-1,2-Dichloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 cis-1,3-Dichloropropene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Carbon disulfide ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Carbon tetrachloride ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Chlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Chloroform ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Dibromomethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Ethylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Isopropylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Methylene Chloride ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-025-3 Lab Sample ID: 570-87522-5
Date Collected: 03/10/22 09:03 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
Naphthalene ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac n-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 o-Xylene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 p-Isopropyltoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 sec-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Styrene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
trans-1,2-Dichloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 tert-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Tetrachloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Toluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1
Trichloroethene 51 2.0 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Trichlorofluoromethane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Vinyl acetate ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 Vinyl chloride ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 17:39 1 1,2-Dichloroethane-d4 (Surr) 95 64 - 141 03/18/22 08:53 03/18/22 17:39 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 103 76 - 120 03/18/22 08:53 03/18/22 17:39 1 Dibromofluoromethane (Surr) 89 47 - 142 03/18/22 08:53 03/18/22 17:39 1 Toluene-d8 (Surr) 106 80 - 120 03/18/22 08:53 03/18/22 17:39 1 Client Sample ID: DGA-025-5 Lab Sample ID: 570-87522-6
Date Collected: 03/10/22 09:05 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,1,2-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,1-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,1-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2-Dibromo-3-Chloropropane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2-Dibromoethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,3-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,3-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,4-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 2,2-Dichloropropane ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-025-5 Lab Sample ID: 570-87522-6
Date Collected: 03/10/22 09:05 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
4-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
Benzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
Bromobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Bromodichloromethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Bromoform ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 cis-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 cis-1,3-Dichloropropene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Carbon disulfide ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Carbon tetrachloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Chlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Chloroform 1.1 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Dibromomethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Ethylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Isopropylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Methylene Chloride ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Naphthalene ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 n-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 o-Xylene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 p-Isopropyltoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 sec-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Styrene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
trans-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 tert-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Tetrachloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Toluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1
Trichloroethene 33 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Trichlorofluoromethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Vinyl acetate ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 Vinyl chloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:05 1 1,2-Dichloroethane-d4 (Surr) 100 64 - 141 03/18/22 08:53 03/18/22 18:05 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 106 76 - 120 03/18/22 08:53 03/18/22 18:05 1 Dibromofluoromethane (Surr) 90 47 - 142 03/18/22 08:53 03/18/22 18:05 1 Toluene-d8 (Surr) 106 80 - 120 03/18/22 08:53 03/18/22 18:05 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Client Sample ID: DGA-026-3 Lab Sample ID: 570-87522-7
Date Collected: 03/10/22 08:42 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND F2 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND F2 9.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,1,2-Trichloroethane ND F2 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,1-Dichloroethane ND F2 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,1-Dichloroethene ND F2 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,1-Dichloropropene ND F2 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2-Dibromo-3-Chloropropane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2-Dibromoethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2-Dichloroethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2-Dichloropropane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,3-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,3-Dichloropropane ND F2 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,4-Dichlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 2,2-Dichloropropane ND F2 4.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 13:23 1
2-Chlorotoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 13:23 1
4-Chlorotoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 4-Methyl-2-pentanone ND *+ F1 20 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Acetone ND F2 20 ug/Kg 03/18/22 08:53 03/18/22 13:23 1
Benzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1
Bromobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Bromodichloromethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Bromoform ND F2 4.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 cis-1,2-Dichloroethene ND F2 F1 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 cis-1,3-Dichloropropene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Carbon disulfide ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Carbon tetrachloride ND F2 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Chlorobenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Chloroform ND F2 F1 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Dibromochloromethane ND F2 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Dibromomethane ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Ethylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Isopropylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Methylene Chloride ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Methyl-t-Butyl Ether (MTBE) ND F2 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-026-3 Lab Sample ID: 570-87522-7
Date Collected: 03/10/22 08:42 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
Naphthalene ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac n-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 o-Xylene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 p-Isopropyltoluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 sec-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Styrene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1
trans-1,2-Dichloroethene ND F2 F1 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 trans-1,3-Dichloropropene ND F2 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 tert-Butylbenzene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Tetrachloroethene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Toluene ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1
Trichloroethene 4.2 F2 2.0 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Trichlorofluoromethane ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Vinyl acetate ND 9.9 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 Vinyl chloride ND 0.99 ug/Kg 03/18/22 08:53 03/18/22 13:23 1 1,2-Dichloroethane-d4 (Surr) 94 64 - 141 03/18/22 08:53 03/18/22 13:23 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 106 76 - 120 03/18/22 08:53 03/18/22 13:23 1 Dibromofluoromethane (Surr) 88 47 - 142 03/18/22 08:53 03/18/22 13:23 1 Toluene-d8 (Surr) 106 80 - 120 03/18/22 08:53 03/18/22 13:23 1 Client Sample ID: DGA-026-4.5 Lab Sample ID: 570-87522-8 Date Collected: 03/10/22 08:43 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,1,2-Trichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,1-Dichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,1-Dichloroethene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2-Dibromo-3-Chloropropane ND 10 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2-Dibromoethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2-Dichlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2-Dichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2-Dichloropropane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,3-Dichlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,3-Dichloropropane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,4-Dichlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-026-4.5 Lab Sample ID: 570-87522-8 Date Collected: 03/10/22 08:43 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2-Chlorotoluene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
4-Chlorotoluene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
Benzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
Bromobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Bromodichloromethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Bromoform ND 5.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 cis-1,2-Dichloroethene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 cis-1,3-Dichloropropene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Carbon disulfide ND 10 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Carbon tetrachloride ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Chlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Chloroform ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Dibromomethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Ethylbenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Isopropylbenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Methylene Chloride ND 10 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Naphthalene ND 10 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 n-Butylbenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 o-Xylene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 p-Isopropyltoluene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 sec-Butylbenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Styrene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
trans-1,2-Dichloroethene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 tert-Butylbenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Tetrachloroethene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Toluene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1
Trichloroethene 4.5 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Trichlorofluoromethane ND 10 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Vinyl acetate ND 10 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 Vinyl chloride ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 18:30 1 1,2-Dichloroethane-d4 (Surr) 99 64 - 141 03/18/22 08:53 03/18/22 18:30 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 105 76 - 120 03/18/22 08:53 03/18/22 18:30 1 Dibromofluoromethane (Surr) 91 47 - 142 03/18/22 08:53 03/18/22 18:30 1 Toluene-d8 (Surr) 107 80 - 120 03/18/22 08:53 03/18/22 18:30 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Client Sample ID: DGA-026-6 Lab Sample ID: 570-87522-9
Date Collected: 03/10/22 08:44 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,1,2-Trichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,1-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,1-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2-Dibromo-3-Chloropropane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2-Dibromoethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2-Dichloroethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,3-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,3-Dichloropropane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,4-Dichlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 2,2-Dichloropropane ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
2-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
4-Chlorotoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 4-Methyl-2-pentanone ND *+ 20 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
Benzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
Bromobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Bromodichloromethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Bromoform ND 4.9 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 cis-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 cis-1,3-Dichloropropene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Carbon disulfide ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Carbon tetrachloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Chlorobenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Chloroform ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Dibromomethane ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Ethylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Isopropylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Methylene Chloride ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-026-6 Lab Sample ID: 570-87522-9
Date Collected: 03/10/22 08:44 Matrix: Solid
Date Received: 03/10/22 18:20
RL MDL
Naphthalene ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac n-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 N-Propylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 o-Xylene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
m,p-Xylene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 p-Isopropyltoluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 sec-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Styrene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
trans-1,2-Dichloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 trans-1,3-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 tert-Butylbenzene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Tetrachloroethene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Toluene ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1
Trichloroethene 3.4 2.0 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Trichlorofluoromethane ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Vinyl acetate ND 9.8 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 Vinyl chloride ND 0.98 ug/Kg 03/18/22 08:53 03/18/22 18:56 1 1,2-Dichloroethane-d4 (Surr) 101 64 - 141 03/18/22 08:53 03/18/22 18:56 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 106 76 - 120 03/18/22 08:53 03/18/22 18:56 1 Dibromofluoromethane (Surr) 92 47 - 142 03/18/22 08:53 03/18/22 18:56 1 Toluene-d8 (Surr) 106 80 - 120 03/18/22 08:53 03/18/22 18:56 1 Client Sample ID: DGA-005-20-GW Lab Sample ID: 570-87522-10 Date Collected: 03/10/22 09:34 Matrix: Water
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 2.0 ug/L 03/22/22 18:45 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/L 03/22/22 18:45 1
1,1,2,2-Tetrachloroethane ND 1.0 ug/L 03/22/22 18:45 1
1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/L 03/22/22 18:45 1 1,1,2-Trichloroethane ND 1.0 ug/L 03/22/22 18:45 1
1,1-Dichloroethane 6.8 1.0 ug/L 03/22/22 18:45 1
1,1-Dichloroethene ND 1.0 ug/L 03/22/22 18:45 1
1,1-Dichloropropene ND 1.0 ug/L 03/22/22 18:45 1
1,2,3-Trichlorobenzene ND 1.0 ug/L 03/22/22 18:45 1
1,2,3-Trichloropropane ND 5.0 ug/L 03/22/22 18:45 1
1,2,4-Trichlorobenzene ND 1.0 ug/L 03/22/22 18:45 1
1,2,4-Trimethylbenzene ND 1.0 ug/L 03/22/22 18:45 1
1,2-Dibromo-3-Chloropropane ND 10 ug/L 03/22/22 18:45 1 1,2-Dibromoethane ND 1.0 ug/L 03/22/22 18:45 1
1,2-Dichlorobenzene ND 1.0 ug/L 03/22/22 18:45 1
1,2-Dichloroethane ND 0.50 ug/L 03/22/22 18:45 1
1,2-Dichloropropane ND 1.0 ug/L 03/22/22 18:45 1
1,3,5-Trimethylbenzene ND 1.0 ug/L 03/22/22 18:45 1
1,3-Dichlorobenzene ND 1.0 ug/L 03/22/22 18:45 1
1,3-Dichloropropane ND 1.0 ug/L 03/22/22 18:45 1
1,4-Dichlorobenzene ND 1.0 ug/L 03/22/22 18:45 1
2,2-Dichloropropane ND 1.0 ug/L 03/22/22 18:45 1
Eurofins Calscience

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15 Client Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: DGA-005-20-GW Lab Sample ID: 570-87522-10 Date Collected: 03/10/22 09:34 Matrix: Water
Date Received: 03/10/22 18:20
RL MDL
2-Butanone ND 20 ug/L 03/22/22 18:45 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2-Chlorotoluene ND 1.0 ug/L 03/22/22 18:45 1
2-Hexanone ND 10 ug/L 03/22/22 18:45 1
4-Chlorotoluene ND 1.0 ug/L 03/22/22 18:45 1
4-Methyl-2-pentanone ND 10 ug/L 03/22/22 18:45 1
Acetone 24 20 ug/L 03/22/22 18:45 1
Benzene ND 0.50 ug/L 03/22/22 18:45 1
Bromobenzene ND 1.0 ug/L 03/22/22 18:45 1
Bromochloromethane ND 2.0 ug/L 03/22/22 18:45 1
Bromodichloromethane ND 1.0 ug/L 03/22/22 18:45 1
Bromoform ND *+ 5.0 ug/L 03/22/22 18:45 1
Bromomethane ND 25 ug/L 03/22/22 18:45 1
cis-1,2-Dichloroethene 38 1.0 ug/L 03/22/22 18:45 1
cis-1,3-Dichloropropene ND 0.50 ug/L 03/22/22 18:45 1
Carbon disulfide ND 10 ug/L 03/22/22 18:45 1
Carbon tetrachloride ND 0.50 ug/L 03/22/22 18:45 1
Chlorobenzene ND 1.0 ug/L 03/22/22 18:45 1
Chloroethane ND 5.0 ug/L 03/22/22 18:45 1
Chloroform ND 1.0 ug/L 03/22/22 18:45 1
Chloromethane ND 10 ug/L 03/22/22 18:45 1
Dibromochloromethane ND 2.0 ug/L 03/22/22 18:45 1
Dibromomethane ND 1.0 ug/L 03/22/22 18:45 1
Dichlorodifluoromethane ND *+ 5.0 ug/L 03/22/22 18:45 1 Ethylbenzene ND 1.0 ug/L 03/22/22 18:45 1
Isopropylbenzene ND 1.0 ug/L 03/22/22 18:45 1
Methylene Chloride ND 10 ug/L 03/22/22 18:45 1
Methyl-t-Butyl Ether (MTBE) ND 1.0 ug/L 03/22/22 18:45 1 Naphthalene ND 10 ug/L 03/22/22 18:45 1
n-Butylbenzene ND 1.0 ug/L 03/22/22 18:45 1
N-Propylbenzene ND 1.0 ug/L 03/22/22 18:45 1
o-Xylene ND 1.0 ug/L 03/22/22 18:45 1
m,p-Xylene ND 2.0 ug/L 03/22/22 18:45 1
p-Isopropyltoluene ND 1.0 ug/L 03/22/22 18:45 1
sec-Butylbenzene ND 1.0 ug/L 03/22/22 18:45 1
Styrene ND 1.0 ug/L 03/22/22 18:45 1
trans-1,2-Dichloroethene 1.4 1.0 ug/L 03/22/22 18:45 1
trans-1,3-Dichloropropene ND 0.50 ug/L 03/22/22 18:45 1 tert-Butylbenzene ND 1.0 ug/L 03/22/22 18:45 1
Tetrachloroethene ND 1.0 ug/L 03/22/22 18:45 1
Toluene ND 1.0 ug/L 03/22/22 18:45 1
Trichlorofluoromethane ND 10 ug/L 03/22/22 18:45 1
Vinyl acetate ND 10 ug/L 03/22/22 18:45 1
Vinyl chloride ND 0.50 ug/L 03/22/22 18:45 1
1,2-Dichloroethane-d4 (Surr) 104 70 - 123 03/22/22 18:45 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 95 80 - 120 03/22/22 18:45 1 Dibromofluoromethane (Surr) 101 78 - 120 03/22/22 18:45 1 Toluene-d8 (Surr) 99 80 - 120 03/22/22 18:45 1
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15 Client Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Client Sample ID: TB-1 Lab Sample ID: 570-87522-11
Date Collected: 03/10/22 14:18 Matrix: Water
Date Received: 03/10/22 18:20
RL MDL
1,1,1,2-Tetrachloroethane ND 2.0 ug/L 03/22/22 18:21 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/L 03/22/22 18:21 1
1,1,2,2-Tetrachloroethane ND 1.0 ug/L 03/22/22 18:21 1
1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/L 03/22/22 18:21 1 1,1,2-Trichloroethane ND 1.0 ug/L 03/22/22 18:21 1
1,1-Dichloroethane ND 1.0 ug/L 03/22/22 18:21 1
1,1-Dichloroethene ND 1.0 ug/L 03/22/22 18:21 1
1,1-Dichloropropene ND 1.0 ug/L 03/22/22 18:21 1
1,2,3-Trichlorobenzene ND 1.0 ug/L 03/22/22 18:21 1
1,2,3-Trichloropropane ND 5.0 ug/L 03/22/22 18:21 1
1,2,4-Trichlorobenzene ND 1.0 ug/L 03/22/22 18:21 1
1,2,4-Trimethylbenzene ND 1.0 ug/L 03/22/22 18:21 1
1,2-Dibromo-3-Chloropropane ND 10 ug/L 03/22/22 18:21 1 1,2-Dibromoethane ND 1.0 ug/L 03/22/22 18:21 1
1,2-Dichlorobenzene ND 1.0 ug/L 03/22/22 18:21 1
1,2-Dichloroethane ND 0.50 ug/L 03/22/22 18:21 1
1,2-Dichloropropane ND 1.0 ug/L 03/22/22 18:21 1
1,3,5-Trimethylbenzene ND 1.0 ug/L 03/22/22 18:21 1
1,3-Dichlorobenzene ND 1.0 ug/L 03/22/22 18:21 1
1,3-Dichloropropane ND 1.0 ug/L 03/22/22 18:21 1
1,4-Dichlorobenzene ND 1.0 ug/L 03/22/22 18:21 1
2,2-Dichloropropane ND 1.0 ug/L 03/22/22 18:21 1
2-Butanone ND 20 ug/L 03/22/22 18:21 1
2-Chlorotoluene ND 1.0 ug/L 03/22/22 18:21 1
2-Hexanone ND 10 ug/L 03/22/22 18:21 1
4-Chlorotoluene ND 1.0 ug/L 03/22/22 18:21 1
4-Methyl-2-pentanone ND 10 ug/L 03/22/22 18:21 1
Acetone ND 20 ug/L 03/22/22 18:21 1
Benzene ND 0.50 ug/L 03/22/22 18:21 1
Bromobenzene ND 1.0 ug/L 03/22/22 18:21 1
Bromochloromethane ND 2.0 ug/L 03/22/22 18:21 1
Bromodichloromethane ND 1.0 ug/L 03/22/22 18:21 1
Bromoform ND *+ 5.0 ug/L 03/22/22 18:21 1
Bromomethane ND 25 ug/L 03/22/22 18:21 1
cis-1,2-Dichloroethene ND 1.0 ug/L 03/22/22 18:21 1
cis-1,3-Dichloropropene ND 0.50 ug/L 03/22/22 18:21 1
Carbon disulfide ND 10 ug/L 03/22/22 18:21 1
Carbon tetrachloride ND 0.50 ug/L 03/22/22 18:21 1
Chlorobenzene ND 1.0 ug/L 03/22/22 18:21 1
Chloroethane ND 5.0 ug/L 03/22/22 18:21 1
Chloroform ND 1.0 ug/L 03/22/22 18:21 1
Chloromethane ND 10 ug/L 03/22/22 18:21 1
Dibromochloromethane ND 2.0 ug/L 03/22/22 18:21 1
Dibromomethane ND 1.0 ug/L 03/22/22 18:21 1
Dichlorodifluoromethane ND *+ 5.0 ug/L 03/22/22 18:21 1 Ethylbenzene ND 1.0 ug/L 03/22/22 18:21 1
Isopropylbenzene ND 1.0 ug/L 03/22/22 18:21 1
Methylene Chloride ND 10 ug/L 03/22/22 18:21 1
Methyl-t-Butyl Ether (MTBE) ND 1.0 ug/L 03/22/22 18:21 1 Eurofins Calscience

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15 Surrogate Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (64-141) (76-120) (47-142) (80-120)

DCA BFB DBFM TOL
570-87522-1 98 106 89 104
Percent Surrogate Recovery (Acceptance Limits)
DGA-024-1
570-87522-1 - DL DGA-024-1 85 114 86 115
570-87522-2 DGA-024-3 96 104 87 106
570-87522-3 DGA-024-4.5 100 107 90 104
570-87522-4 DGA-025-1.5 97 103 89 105
570-87522-4 - DL DGA-025-1.5 86 105 84 111
570-87522-5 DGA-025-3 95 103 89 106
570-87522-6 DGA-025-5 100 106 90 106
570-87522-7 DGA-026-3 94 106 88 106
570-87522-7 MS DGA-026-3 75 103 65 117 *3
570-87522-7 MSD DGA-026-3 96 101 91 102
570-87522-8 DGA-026-4.5 99 105 91 107
570-87522-9 DGA-026-6 101 106 92 106
570-87808-A-19-D MS Matrix Spike 99 100 92 103
570-87808-A-19-E MSD Matrix Spike Duplicate 100 99 91 103 LCS 570-220539/1-A Lab Control Sample 95 101 87 103
LCS 570-220832/1-A Lab Control Sample 90 100 88 103
LCSD 570-220539/2-A Lab Control Sample Dup 93 100 88 103 LCSD 570-220832/2-A Lab Control Sample Dup 93 99 90 103 MB 570-220539/3-A Method Blank 93 106 87 106
MB 570-220862/1-A Method Blank 85 111 86 113
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
Method: 8260B - Volatile Organic Compounds (GC/MS)
Matrix: Water Prep Type: Total/NA
Lab Sample ID Client Sample ID (70-123) (80-120) (78-120) (80-120)

DCA BFB DBFM TOL
570-87522-10 104 95 101 99
Percent Surrogate Recovery (Acceptance Limits)
DGA-005-20-GW
570-87522-10 - DL DGA-005-20-GW 103 95 100 99
570-87522-11 TB-1 105 95 101 99
LCS 570-221249/4 Lab Control Sample 99 102 98 100
LCS 570-221559/4 Lab Control Sample 97 101 97 100
LCSD 570-221249/5 Lab Control Sample Dup 99 101 99 100
LCSD 570-221559/5 Lab Control Sample Dup 97 101 98 100
MB 570-221249/8 Method Blank 104 95 100 100
MB 570-221559/8 Method Blank 101 96 99 99
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
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15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: MB 570-220539/3-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220591 Prep Batch: 220539
RL MDL
1,1,1,2-Tetrachloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,1,2-Trichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,1-Dichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,1-Dichloroethene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2-Dibromo-3-Chloropropane ND 10 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2-Dibromoethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2-Dichlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2-Dichloroethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,2-Dichloropropane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,3-Dichlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,3-Dichloropropane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 1,4-Dichlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 2-Butanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 12:32 1
2-Chlorotoluene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 2-Hexanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 12:32 1
4-Chlorotoluene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 4-Methyl-2-pentanone ND 20 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Acetone ND 20 ug/Kg 03/18/22 08:53 03/18/22 12:32 1
Benzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1
Bromobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Bromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Bromodichloromethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Bromoform ND 5.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1
Bromomethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 cis-1,2-Dichloroethene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 cis-1,3-Dichloropropene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Carbon disulfide ND 10 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Carbon tetrachloride ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Chlorobenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Chloroethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Chloroform ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Chloromethane ND 20 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Dibromochloromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Dibromomethane ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Ethylbenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Isopropylbenzene ND 1.0 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Methylene Chloride ND 10 ug/Kg 03/18/22 08:53 03/18/22 12:32 1 Eurofins Calscience

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

Limits
1,1,1-Trichloroethane 50.0 45.48 ug/Kg 91 73 - 121
1,1,2,2-Tetrachloroethane 50.0 46.07 ug/Kg 92 76 - 123
1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 42.77 ug/Kg 86 64 - 120
1,1,2-Trichloroethane 50.0 45.47 ug/Kg 91 80 - 120
1,1-Dichloroethane 50.0 51.77 ug/Kg 104 71 - 120
1,1-Dichloroethene 50.0 52.37 ug/Kg 105 68 - 120
1,1-Dichloropropene 50.0 48.44 ug/Kg 97 74 - 122
1,2,3-Trichlorobenzene 50.0 58.62 ug/Kg 117 80 - 128
1,2,3-Trichloropropane 50.0 47.86 ug/Kg 96 74 - 122
1,2,4-Trichlorobenzene 50.0 55.58 ug/Kg 111 80 - 132
1,2,4-Trimethylbenzene 50.0 47.55 ug/Kg 95 80 - 120
1,2-Dibromo-3-Chloropropane 50.0 46.77 ug/Kg 94 65 - 120 1,2-Dibromoethane 50.0 48.88 ug/Kg 98 80 - 120
1,2-Dichlorobenzene 50.0 49.65 ug/Kg 99 80 - 120
1,2-Dichloroethane 50.0 46.61 ug/Kg 93 76 - 126
1,2-Dichloropropane 50.0 56.78 ug/Kg 114 80 - 120
1,3,5-Trimethylbenzene 50.0 48.91 ug/Kg 98 78 - 124
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LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
1,3-Dichloropropane 50.0 47.72 ug/Kg 95 80 - 120
1,4-Dichlorobenzene 50.0 49.10 ug/Kg 98 80 - 120
2,2-Dichloropropane 50.0 44.10 ug/Kg 88 68 - 129
2-Butanone 50.0 55.62 ug/Kg 111 63 - 129
2-Chlorotoluene 50.0 48.09 ug/Kg 96 77 - 122
2-Hexanone 50.0 61.74 ug/Kg 123 67 - 130
4-Chlorotoluene 50.0 46.06 ug/Kg 92 80 - 120
4-Methyl-2-pentanone 50.0 61.74 *+ me ug/Kg 123 73 - 122 Acetone 50.0 57.45 ug/Kg 115 62 - 123
Benzene 50.0 48.47 ug/Kg 97 76 - 120
Bromobenzene 50.0 50.87 ug/Kg 102 80 - 124
Bromochloromethane 50.0 44.21 ug/Kg 88 77 - 120
Bromodichloromethane 50.0 48.39 ug/Kg 97 80 - 127
Bromoform 50.0 45.77 ug/Kg 92 69 - 131
Bromomethane 50.0 47.47 ug/Kg 95 39 - 143
cis-1,2-Dichloroethene 50.0 43.85 ug/Kg 88 77 - 121
cis-1,3-Dichloropropene 50.0 50.77 ug/Kg 102 80 - 121
Carbon disulfide 50.0 43.91 ug/Kg 88 59 - 128
Carbon tetrachloride 50.0 48.13 ug/Kg 96 68 - 132
Chlorobenzene 50.0 49.34 ug/Kg 99 80 - 120
Chloroethane 50.0 51.97 ug/Kg 104 59 - 135
Chloroform 50.0 42.44 ug/Kg 85 77 - 121
Chloromethane 50.0 56.07 ug/Kg 112 51 - 129
Dibromochloromethane 50.0 47.44 ug/Kg 95 77 - 127
Dibromomethane 50.0 45.46 ug/Kg 91 80 - 124
Dichlorodifluoromethane 50.0 32.92 ug/Kg 66 53 - 133
Ethylbenzene 50.0 49.22 ug/Kg 98 80 - 120
Isopropylbenzene 50.0 50.25 ug/Kg 100 80 - 123
Methylene Chloride 50.0 45.01 ug/Kg 90 70 - 120
Methyl-t-Butyl Ether (MTBE) 50.0 46.47 ug/Kg 93 70 - 120 Naphthalene 50.0 56.41 ug/Kg 113 76 - 121
n-Butylbenzene 50.0 48.44 ug/Kg 97 78 - 123
N-Propylbenzene 50.0 49.32 ug/Kg 99 78 - 123
o-Xylene 50.0 49.57 ug/Kg 99 76 - 125
m,p-Xylene 100 96.54 ug/Kg 97 75 - 122
p-Isopropyltoluene 50.0 48.59 ug/Kg 97 80 - 121
sec-Butylbenzene 50.0 48.24 ug/Kg 96 80 - 120
Styrene 50.0 49.60 ug/Kg 99 79 - 123
trans-1,2-Dichloroethene 50.0 41.41 ug/Kg 83 71 - 120
trans-1,3-Dichloropropene 50.0 46.54 ug/Kg 93 80 - 126
tert-Butylbenzene 50.0 49.15 ug/Kg 98 80 - 120
Tetrachloroethene 50.0 50.68 ug/Kg 101 80 - 123
Toluene 50.0 50.70 ug/Kg 101 79 - 120
Trichloroethene 50.0 50.04 ug/Kg 100 80 - 120
Trichlorofluoromethane 50.0 45.85 ug/Kg 92 69 - 133
Vinyl acetate 50.0 44.99 ug/Kg 90 78 - 138
Vinyl chloride 50.0 57.18 ug/Kg 114 65 - 129
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LCSD LCSD
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane 50.0 46.04 ug/Kg 92 73 - 121 1 20 1,1,2,2-Tetrachloroethane 50.0 46.96 ug/Kg 94 76 - 123 2 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 43.91 ug/Kg 88 64 - 120 3 20
1,1,2-Trichloroethane 50.0 46.20 ug/Kg 92 80 - 120 2 20 1,1-Dichloroethane 50.0 52.31 ug/Kg 105 71 - 120 1 20
1,1-Dichloroethene 50.0 52.28 ug/Kg 105 68 - 120 0 20
1,1-Dichloropropene 50.0 49.37 ug/Kg 99 74 - 122 2 20
1,2,3-Trichlorobenzene 50.0 57.33 ug/Kg 115 80 - 128 2 20 1,2,3-Trichloropropane 50.0 48.64 ug/Kg 97 74 - 122 2 20 1,2,4-Trichlorobenzene 50.0 54.79 ug/Kg 110 80 - 132 1 20 1,2,4-Trimethylbenzene 50.0 45.87 ug/Kg 92 80 - 120 4 20 1,2-Dibromo-3-Chloropropane 50.0 46.73 ug/Kg 93 65 - 120 0 20 1,2-Dibromoethane 50.0 49.31 ug/Kg 99 80 - 120 1 20
1,2-Dichlorobenzene 50.0 49.58 ug/Kg 99 80 - 120 0 20
1,2-Dichloroethane 50.0 48.00 ug/Kg 96 76 - 126 3 20
1,2-Dichloropropane 50.0 57.20 ug/Kg 114 80 - 120 1 20
1,3,5-Trimethylbenzene 50.0 48.11 ug/Kg 96 78 - 124 2 20 1,3-Dichlorobenzene 50.0 48.60 ug/Kg 97 80 - 120 1 20
1,3-Dichloropropane 50.0 47.75 ug/Kg 95 80 - 120 0 20
1,4-Dichlorobenzene 50.0 47.87 ug/Kg 96 80 - 120 3 20
2,2-Dichloropropane 50.0 44.31 ug/Kg 89 68 - 129 0 20
2-Butanone 50.0 61.10 ug/Kg 122 63 - 129 9 20
2-Chlorotoluene 50.0 47.51 ug/Kg 95 77 - 122 1 20
2-Hexanone 50.0 62.46 ug/Kg 125 67 - 130 1 20
4-Chlorotoluene 50.0 45.29 ug/Kg 91 80 - 120 2 20
4-Methyl-2-pentanone 50.0 64.09 *+ me ug/Kg 128 73 - 122 4 20 Acetone 50.0 61.71 ug/Kg 123 62 - 123 7 20
Benzene 50.0 48.61 ug/Kg 97 76 - 120 0 20
Bromobenzene 50.0 49.46 ug/Kg 99 80 - 124 3 20
Bromochloromethane 50.0 45.20 ug/Kg 90 77 - 120 2 20
Bromodichloromethane 50.0 48.84 ug/Kg 98 80 - 127 1 20
Bromoform 50.0 46.76 ug/Kg 94 69 - 131 2 20
Bromomethane 50.0 48.18 ug/Kg 96 39 - 143 1 20
cis-1,2-Dichloroethene 50.0 44.03 ug/Kg 88 77 - 121 0 20 cis-1,3-Dichloropropene 50.0 51.79 ug/Kg 104 80 - 121 2 20 Carbon disulfide 50.0 43.55 ug/Kg 87 59 - 128 1 20
Carbon tetrachloride 50.0 48.09 ug/Kg 96 68 - 132 0 20
Eurofins Calscience

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

Limits RPD Limit
RPD
Chloroethane 50.0 52.70 ug/Kg 105 59 - 135 1 20
Chloroform 50.0 42.69 ug/Kg 85 77 - 121 1 20
Chloromethane 50.0 56.27 ug/Kg 113 51 - 129 0 20
Dibromochloromethane 50.0 48.48 ug/Kg 97 77 - 127 2 20
Dibromomethane 50.0 46.66 ug/Kg 93 80 - 124 3 20
Dichlorodifluoromethane 50.0 32.88 ug/Kg 66 53 - 133 0 20 Ethylbenzene 50.0 48.39 ug/Kg 97 80 - 120 2 20
Isopropylbenzene 50.0 48.93 ug/Kg 98 80 - 123 3 20
Methylene Chloride 50.0 45.21 ug/Kg 90 70 - 120 0 20
Methyl-t-Butyl Ether (MTBE) 50.0 47.75 ug/Kg 96 70 - 120 3 20 Naphthalene 50.0 56.13 ug/Kg 112 76 - 121 1 20
n-Butylbenzene 50.0 47.68 ug/Kg 95 78 - 123 2 20
N-Propylbenzene 50.0 48.54 ug/Kg 97 78 - 123 2 20
o-Xylene 50.0 48.34 ug/Kg 97 76 - 125 3 20
m,p-Xylene 100 94.44 ug/Kg 94 75 - 122 2 20
p-Isopropyltoluene 50.0 47.20 ug/Kg 94 80 - 121 3 20
sec-Butylbenzene 50.0 47.35 ug/Kg 95 80 - 120 2 20
Styrene 50.0 48.33 ug/Kg 97 79 - 123 3 20
trans-1,2-Dichloroethene 50.0 42.69 ug/Kg 85 71 - 120 3 20 trans-1,3-Dichloropropene 50.0 47.18 ug/Kg 94 80 - 126 1 20 tert-Butylbenzene 50.0 48.16 ug/Kg 96 80 - 120 2 20
Tetrachloroethene 50.0 50.75 ug/Kg 102 80 - 123 0 20
Toluene 50.0 49.49 ug/Kg 99 79 - 120 2 20
Trichloroethene 50.0 50.27 ug/Kg 101 80 - 120 0 20
Trichlorofluoromethane 50.0 45.75 ug/Kg 91 69 - 133 0 20 Vinyl acetate 50.0 49.57 ug/Kg 99 78 - 138 10 20
Vinyl chloride 50.0 57.69 ug/Kg 115 65 - 129 1 20
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
93 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 100 76 - 120
Dibromofluoromethane (Surr) 88 47 - 142
Toluene-d8 (Surr) 103 80 - 120
Lab Sample ID: 570-87522-7 MS Client Sample ID: DGA-026-3 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220591 Prep Batch: 220539
1,1,1,2-Tetrachloroethane ND 49.8 36.80 ug/Kg 74 61 - 129 Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
1,1,1-Trichloroethane ND F2 49.8 34.09 ug/Kg 68 67 - 125 1,1,2,2-Tetrachloroethane ND 49.8 40.32 ug/Kg 81 20 - 164 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND F2 49.8 33.66 ug/Kg 68 62 - 125
1,1,2-Trichloroethane ND F2 49.8 32.82 ug/Kg 66 52 - 134 1,1-Dichloroethane ND F2 49.8 36.93 ug/Kg 74 66 - 125
1,1-Dichloroethene ND F2 49.8 40.19 ug/Kg 81 60 - 125
1,1-Dichloropropene ND F2 49.8 34.50 ug/Kg 69 69 - 125
Eurofins Calscience

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Limits
1,2,3-Trichloropropane ND 49.8 45.06 ug/Kg 90 53 - 128
1,2,4-Trichlorobenzene ND 49.8 47.82 ug/Kg 96 20 - 146
1,2,4-Trimethylbenzene ND 49.8 43.64 ug/Kg 88 51 - 129
1,2-Dibromo-3-Chloropropane ND 49.8 44.51 ug/Kg 89 33 - 126 1,2-Dibromoethane ND 49.8 37.46 ug/Kg 75 65 - 125
1,2-Dichlorobenzene ND 49.8 45.56 ug/Kg 91 47 - 130
1,2-Dichloroethane ND 49.8 41.80 *3 ug/Kg 84 66 - 127
1,2-Dichloropropane ND 49.8 46.14 *3 ug/Kg 93 70 - 125
1,3,5-Trimethylbenzene ND 49.8 47.34 ug/Kg 95 50 - 132
1,3-Dichlorobenzene ND 49.8 43.63 ug/Kg 88 48 - 128
1,3-Dichloropropane ND F2 49.8 34.90 ug/Kg 70 66 - 125
1,4-Dichlorobenzene ND 49.8 43.92 ug/Kg 88 47 - 127
2,2-Dichloropropane ND F2 49.8 34.53 ug/Kg 69 61 - 128
2-Butanone ND 49.8 50.03 ug/Kg 100 48 - 134
2-Chlorotoluene ND 49.8 45.06 ug/Kg 90 54 - 127
2-Hexanone ND 49.8 60.32 ug/Kg 121 48 - 136
4-Chlorotoluene ND 49.8 41.49 ug/Kg 83 54 - 125
4-Methyl-2-pentanone ND *+ F1 49.8 69.36 F1 *3 ug/Kg 139 55 - 133 Acetone ND F2 49.8 38.98 ug/Kg 78 30 - 175
Benzene ND 49.8 43.43 *3 ug/Kg 87 70 - 125
Bromobenzene ND 49.8 47.77 ug/Kg 96 57 - 129
Bromochloromethane ND 49.8 40.02 ug/Kg 80 67 - 125
Bromodichloromethane ND 49.8 39.19 *3 ug/Kg 79 64 - 130 Bromoform ND F2 49.8 33.76 ug/Kg 68 49 - 133
Bromomethane ND 49.8 52.34 ug/Kg 105 30 - 149
cis-1,2-Dichloroethene ND F2 F1 49.8 29.18 F1 ug/Kg 59 71 - 125 cis-1,3-Dichloropropene ND 49.8 41.87 *3 ug/Kg 84 63 - 126 Carbon disulfide ND 49.8 42.59 ug/Kg 86 53 - 125
Carbon tetrachloride ND F2 49.8 34.68 ug/Kg 70 60 - 130 Chlorobenzene ND 49.8 46.31 ug/Kg 93 65 - 125
Chloroethane ND 49.8 56.09 ug/Kg 113 51 - 131
Chloroform ND F2 F1 49.8 30.11 F1 ug/Kg 60 70 - 125
Chloromethane ND 49.8 58.36 ug/Kg 117 43 - 125
Dibromochloromethane ND F2 49.8 32.93 ug/Kg 66 56 - 132 Dibromomethane ND 49.8 40.02 *3 ug/Kg 80 67 - 127
Dichlorodifluoromethane ND 49.8 34.35 ug/Kg 69 47 - 127 Ethylbenzene ND 49.8 46.00 ug/Kg 92 64 - 125
Isopropylbenzene ND 49.8 46.55 ug/Kg 93 59 - 129
Methylene Chloride ND 49.8 47.45 ug/Kg 95 60 - 125
Methyl-t-Butyl Ether (MTBE) ND F2 49.8 32.25 ug/Kg 65 61 - 125 Naphthalene ND 49.8 53.11 ug/Kg 107 25 - 136
n-Butylbenzene ND 49.8 42.84 ug/Kg 86 35 - 135
N-Propylbenzene ND 49.8 45.47 ug/Kg 91 52 - 131
o-Xylene ND 49.8 47.20 ug/Kg 95 59 - 128
m,p-Xylene ND 99.6 91.99 ug/Kg 92 60 - 125
p-Isopropyltoluene ND 49.8 43.25 ug/Kg 87 46 - 132
sec-Butylbenzene ND 49.8 41.82 ug/Kg 84 47 - 131
Styrene ND 49.8 47.10 ug/Kg 95 58 - 128
Eurofins Calscience

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Limits
trans-1,3-Dichloropropene ND F2 49.8 33.88 ug/Kg 68 59 - 132 tert-Butylbenzene ND 49.8 42.42 ug/Kg 85 53 - 126
Tetrachloroethene ND 49.8 42.62 ug/Kg 86 62 - 129
Toluene ND 49.8 54.68 *3 ug/Kg 110 68 - 125
Trichloroethene 4.2 F2 49.8 40.98 *3 ug/Kg 74 41 - 169
Trichlorofluoromethane ND 49.8 38.11 ug/Kg 77 63 - 128
Vinyl acetate ND 49.8 31.15 ug/Kg 63 20 - 154
Vinyl chloride ND 49.8 60.02 ug/Kg 121 59 - 125
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
75 MS MS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 103 76 - 120
Dibromofluoromethane (Surr) 65 47 - 142
Toluene-d8 (Surr) 117 *3 80 - 120
Lab Sample ID: 570-87522-7 MSD Client Sample ID: DGA-026-3 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220591 Prep Batch: 220539
1,1,1,2-Tetrachloroethane ND 49.9 45.29 ug/Kg 91 61 - 129 21 23 Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane ND F2 49.9 43.83 F2 ug/Kg 88 67 - 125 25 20 1,1,2,2-Tetrachloroethane ND 49.9 45.69 ug/Kg 92 20 - 164 13 40 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND F2 49.9 42.40 F2 ug/Kg 85 62 - 125 23 20
1,1,2-Trichloroethane ND F2 49.9 43.99 F2 ug/Kg 88 52 - 134 29 25 1,1-Dichloroethane ND F2 49.9 50.36 F2 ug/Kg 101 66 - 125 31 20 1,1-Dichloroethene ND F2 49.9 50.82 F2 ug/Kg 102 60 - 125 23 20 1,1-Dichloropropene ND F2 49.9 46.84 F2 ug/Kg 94 69 - 125 30 20 1,2,3-Trichlorobenzene ND 49.9 47.51 ug/Kg 95 20 - 145 5 39 1,2,3-Trichloropropane ND 49.9 47.07 ug/Kg 94 53 - 128 4 25 1,2,4-Trichlorobenzene ND 49.9 45.69 ug/Kg 92 20 - 146 5 38 1,2,4-Trimethylbenzene ND 49.9 43.04 ug/Kg 86 51 - 129 1 27 1,2-Dibromo-3-Chloropropane ND 49.9 45.41 ug/Kg 91 33 - 126 2 29 1,2-Dibromoethane ND 49.9 46.40 ug/Kg 93 65 - 125 21 21 1,2-Dichlorobenzene ND 49.9 45.76 ug/Kg 92 47 - 130 0 29 1,2-Dichloroethane ND 49.9 45.34 ug/Kg 91 66 - 127 8 20 1,2-Dichloropropane ND 49.9 54.09 ug/Kg 108 70 - 125 16 20 1,3,5-Trimethylbenzene ND 49.9 44.01 ug/Kg 88 50 - 132 7 29 1,3-Dichlorobenzene ND 49.9 44.82 ug/Kg 90 48 - 128 3 28 1,3-Dichloropropane ND F2 49.9 46.16 F2 ug/Kg 92 66 - 125 28 20 1,4-Dichlorobenzene ND 49.9 44.59 ug/Kg 89 47 - 127 2 28 2,2-Dichloropropane ND F2 49.9 43.20 F2 ug/Kg 87 61 - 128 22 20 2-Butanone ND 49.9 59.51 ug/Kg 119 48 - 134 17 24
2-Chlorotoluene ND 49.9 43.78 ug/Kg 88 54 - 127 3 27
2-Hexanone ND 49.9 58.42 ug/Kg 117 48 - 136 3 28
4-Chlorotoluene ND 49.9 42.68 ug/Kg 86 54 - 125 3 26
4-Methyl-2-pentanone ND *+ F1 49.9 59.33 ug/Kg 119 55 - 133 16 23 Eurofins Calscience

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MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Benzene ND 49.9 45.81 ug/Kg 92 70 - 125 5 20
Bromobenzene ND 49.9 46.58 ug/Kg 93 57 - 129 3 26
Bromochloromethane ND 49.9 43.75 ug/Kg 88 67 - 125 9 20 Bromodichloromethane ND 49.9 46.62 ug/Kg 93 64 - 130 17 20 Bromoform ND F2 49.9 45.76 F2 ug/Kg 92 49 - 133 30 27
Bromomethane ND 49.9 46.03 ug/Kg 92 30 - 149 13 31
cis-1,2-Dichloroethene ND F2 F1 49.9 42.63 F2 ug/Kg 85 71 - 125 37 20 cis-1,3-Dichloropropene ND 49.9 48.64 ug/Kg 97 63 - 126 15 20 Carbon disulfide ND 49.9 42.56 ug/Kg 85 53 - 125 0 20
Carbon tetrachloride ND F2 49.9 45.93 F2 ug/Kg 92 60 - 130 28 20 Chlorobenzene ND 49.9 46.20 ug/Kg 93 65 - 125 0 22
Chloroethane ND 49.9 50.67 ug/Kg 102 51 - 131 10 21
Chloroform ND F2 F1 49.9 41.13 F2 ug/Kg 82 70 - 125 31 20 Chloromethane ND 49.9 56.07 ug/Kg 112 43 - 125 4 21
Dibromochloromethane ND F2 49.9 46.62 F2 ug/Kg 93 56 - 132 34 24 Dibromomethane ND 49.9 44.34 ug/Kg 89 67 - 127 10 20
Dichlorodifluoromethane ND 49.9 32.07 ug/Kg 64 47 - 127 7 20 Ethylbenzene ND 49.9 45.39 ug/Kg 91 64 - 125 1 22
Isopropylbenzene ND 49.9 45.95 ug/Kg 92 59 - 129 1 26
Methylene Chloride ND 49.9 44.32 ug/Kg 89 60 - 125 7 20 Methyl-t-Butyl Ether (MTBE) ND F2 49.9 46.68 F2 ug/Kg 94 61 - 125 37 20 Naphthalene ND 49.9 51.36 ug/Kg 103 25 - 136 3 32
n-Butylbenzene ND 49.9 42.03 ug/Kg 84 35 - 135 2 35
N-Propylbenzene ND 49.9 44.34 ug/Kg 89 52 - 131 3 27
o-Xylene ND 49.9 45.54 ug/Kg 91 59 - 128 4 24
m,p-Xylene ND 99.8 89.56 ug/Kg 89 60 - 125 3 24
p-Isopropyltoluene ND 49.9 43.13 ug/Kg 86 46 - 132 0 30 sec-Butylbenzene ND 49.9 42.56 ug/Kg 85 47 - 131 2 30
Styrene ND 49.9 45.20 ug/Kg 91 58 - 128 4 24
trans-1,2-Dichloroethene ND F2 F1 49.9 40.57 F2 ug/Kg 81 67 - 125 38 20 trans-1,3-Dichloropropene ND F2 49.9 45.01 F2 ug/Kg 90 59 - 132 28 22 tert-Butylbenzene ND 49.9 44.32 ug/Kg 89 53 - 126 4 28
Tetrachloroethene ND 49.9 47.27 ug/Kg 95 62 - 129 10 21 Toluene ND 49.9 47.68 ug/Kg 96 68 - 125 14 20
Trichloroethene 4.2 F2 49.9 50.94 F2 ug/Kg 94 41 - 169 22 21 Trichlorofluoromethane ND 49.9 43.78 ug/Kg 88 63 - 128 14 20 Vinyl acetate ND 49.9 44.87 ug/Kg 90 20 - 154 36 40
Vinyl chloride ND 49.9 56.12 ug/Kg 112 59 - 125 7 20
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
96 MSD MSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 101 76 - 120
Dibromofluoromethane (Surr) 91 47 - 142
Toluene-d8 (Surr) 102 80 - 120
Eurofins Calscience

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

Limits
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
90 LCS LCS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 100 76 - 120
Dibromofluoromethane (Surr) 88 47 - 142
Toluene-d8 (Surr) 103 80 - 120
Lab Sample ID: LCSD 570-220832/2-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220837 Prep Batch: 220832
Trichloroethene 50.0 50.75 ug/Kg 102 80 - 120 1 20
Analyte

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

Limits RPD Limit
RPD
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
93 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 99 76 - 120
Dibromofluoromethane (Surr) 90 47 - 142
Toluene-d8 (Surr) 103 80 - 120
Lab Sample ID: 570-87808-A-19-D MS Client Sample ID: Matrix Spike Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220837 Prep Batch: 220832
Trichloroethene ND 49.6 47.09 ug/Kg 95 41 - 169
Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
99 MS MS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 100 76 - 120
Dibromofluoromethane (Surr) 92 47 - 142
Toluene-d8 (Surr) 103 80 - 120
Lab Sample ID: 570-87808-A-19-E MSD Client Sample ID: Matrix Spike Duplicate Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220837 Prep Batch: 220832
Trichloroethene ND 49.5 47.13 ug/Kg 95 41 - 169 0 21
Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
1,2-Dichloroethane-d4 (Surr) 64 - 141
Surrogate
100

MSD MSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 99 76 - 120
Dibromofluoromethane (Surr) 91 47 - 142
Toluene-d8 (Surr) 103 80 - 120
Eurofins Calscience

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15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-220862/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 220837 Prep Batch: 220862
RL MDL
Trichloroethene ND 200 ug/Kg 03/19/22 11:12 03/19/22 14:22 50 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,2-Dichloroethane-d4 (Surr) 85 64 - 141 03/19/22 14:22 50 MB MB
Surrogate
03/19/22 11:12
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
4-Bromofluorobenzene (Surr) 111 76 - 120 03/19/22 11:12 03/19/22 14:22 50 Dibromofluoromethane (Surr) 86 47 - 142 03/19/22 11:12 03/19/22 14:22 50 Toluene-d8 (Surr) 113 80 - 120 03/19/22 11:12 03/19/22 14:22 50 Lab Sample ID: MB 570-221249/8 Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA
Analysis Batch: 221249
RL MDL
1,1,1,2-Tetrachloroethane ND 2.0 ug/L 03/22/22 13:33 1
MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/L 03/22/22 13:33 1
1,1,2,2-Tetrachloroethane ND 1.0 ug/L 03/22/22 13:33 1
1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/L 03/22/22 13:33 1 1,1,2-Trichloroethane ND 1.0 ug/L 03/22/22 13:33 1
1,1-Dichloroethane ND 1.0 ug/L 03/22/22 13:33 1
1,1-Dichloroethene ND 1.0 ug/L 03/22/22 13:33 1
1,1-Dichloropropene ND 1.0 ug/L 03/22/22 13:33 1
1,2,3-Trichlorobenzene ND 1.0 ug/L 03/22/22 13:33 1
1,2,3-Trichloropropane ND 5.0 ug/L 03/22/22 13:33 1
1,2,4-Trichlorobenzene ND 1.0 ug/L 03/22/22 13:33 1
1,2,4-Trimethylbenzene ND 1.0 ug/L 03/22/22 13:33 1
1,2-Dibromo-3-Chloropropane ND 10 ug/L 03/22/22 13:33 1 1,2-Dibromoethane ND 1.0 ug/L 03/22/22 13:33 1
1,2-Dichlorobenzene ND 1.0 ug/L 03/22/22 13:33 1
1,2-Dichloroethane ND 0.50 ug/L 03/22/22 13:33 1
1,2-Dichloropropane ND 1.0 ug/L 03/22/22 13:33 1
1,3,5-Trimethylbenzene ND 1.0 ug/L 03/22/22 13:33 1
1,3-Dichlorobenzene ND 1.0 ug/L 03/22/22 13:33 1
1,3-Dichloropropane ND 1.0 ug/L 03/22/22 13:33 1
1,4-Dichlorobenzene ND 1.0 ug/L 03/22/22 13:33 1
2,2-Dichloropropane ND 1.0 ug/L 03/22/22 13:33 1
2-Butanone ND 20 ug/L 03/22/22 13:33 1
2-Chlorotoluene ND 1.0 ug/L 03/22/22 13:33 1
2-Hexanone ND 10 ug/L 03/22/22 13:33 1
4-Chlorotoluene ND 1.0 ug/L 03/22/22 13:33 1
4-Methyl-2-pentanone ND 10 ug/L 03/22/22 13:33 1
Acetone ND 20 ug/L 03/22/22 13:33 1
Benzene ND 0.50 ug/L 03/22/22 13:33 1
Bromobenzene ND 1.0 ug/L 03/22/22 13:33 1
Bromochloromethane ND 2.0 ug/L 03/22/22 13:33 1
Bromodichloromethane ND 1.0 ug/L 03/22/22 13:33 1
Bromoform ND 5.0 ug/L 03/22/22 13:33 1
Bromomethane ND 25 ug/L 03/22/22 13:33 1
cis-1,2-Dichloroethene ND 1.0 ug/L 03/22/22 13:33 1
Eurofins Calscience

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

Limits
1,1,1-Trichloroethane 50.0 54.52 ug/L 109 76 - 122
1,1,2,2-Tetrachloroethane 50.0 52.44 ug/L 105 79 - 120
1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 47.09 ug/L 94 53 - 122
1,1,2-Trichloroethane 50.0 51.01 ug/L 102 80 - 120
Eurofins Calscience

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3 4
5 6
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11 12
13 14
15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-221249/4 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA
Analysis Batch: 221249
1,1-Dichloroethane 50.0 49.95 ug/L 100 72 - 120
Analyte

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

Limits
1,1-Dichloroethene 50.0 49.07 ug/L 98 64 - 121
1,1-Dichloropropene 50.0 49.56 ug/L 99 77 - 120
1,2,3-Trichlorobenzene 50.0 51.25 ug/L 103 78 - 136
1,2,3-Trichloropropane 50.0 53.64 ug/L 107 74 - 120
1,2,4-Trichlorobenzene 50.0 50.30 ug/L 101 73 - 138
1,2,4-Trimethylbenzene 50.0 52.50 ug/L 105 80 - 121
1,2-Dibromo-3-Chloropropane 50.0 56.43 ug/L 113 74 - 120 1,2-Dibromoethane 50.0 53.25 ug/L 107 80 - 120
1,2-Dichlorobenzene 50.0 51.19 ug/L 102 80 - 120
1,2-Dichloroethane 50.0 48.88 ug/L 98 76 - 120
1,2-Dichloropropane 50.0 49.60 ug/L 99 73 - 122
1,3,5-Trimethylbenzene 50.0 51.50 ug/L 103 80 - 122
1,3-Dichlorobenzene 50.0 50.46 ug/L 101 80 - 120
1,3-Dichloropropane 50.0 50.12 ug/L 100 80 - 120
1,4-Dichlorobenzene 50.0 50.33 ug/L 101 80 - 120
2,2-Dichloropropane 50.0 62.53 ug/L 125 60 - 150
2-Butanone 50.0 51.05 ug/L 102 65 - 128
2-Chlorotoluene 50.0 49.49 ug/L 99 79 - 120
2-Hexanone 50.0 51.61 ug/L 103 61 - 140
4-Chlorotoluene 50.0 51.02 ug/L 102 80 - 120
4-Methyl-2-pentanone 50.0 51.49 ug/L 103 68 - 133
Acetone 50.0 54.29 ug/L 109 50 - 134
Benzene 50.0 48.10 ug/L 96 76 - 120
Bromobenzene 50.0 51.63 ug/L 103 80 - 125
Bromochloromethane 50.0 49.31 ug/L 99 79 - 120
Bromodichloromethane 50.0 56.31 ug/L 113 80 - 123
Bromoform 50.0 64.54 *+ me ug/L 129 80 - 128
Bromomethane 20.0 19.32 J ug/L 97 64 - 150
cis-1,2-Dichloroethene 50.0 50.32 ug/L 101 80 - 120
cis-1,3-Dichloropropene 50.0 55.18 ug/L 110 75 - 133
Carbon disulfide 50.0 47.21 ug/L 94 67 - 126
Carbon tetrachloride 50.0 58.13 ug/L 116 80 - 127
Chlorobenzene 50.0 50.16 ug/L 100 80 - 120
Chloroethane 20.0 20.06 ug/L 100 67 - 128
Chloroform 50.0 50.32 ug/L 101 80 - 120
Chloromethane 20.0 22.88 ug/L 114 69 - 132
Dibromochloromethane 50.0 61.50 ug/L 123 79 - 130
Dibromomethane 50.0 50.87 ug/L 102 80 - 120
Dichlorodifluoromethane 20.0 31.16 *+ ug/L 156 60 - 138 Ethylbenzene 50.0 50.99 ug/L 102 80 - 120
Isopropylbenzene 50.0 50.60 ug/L 101 80 - 123
Methylene Chloride 50.0 46.63 ug/L 93 62 - 133
Methyl-t-Butyl Ether (MTBE) 50.0 48.39 ug/L 97 64 - 120 Naphthalene 50.0 50.58 ug/L 101 80 - 120
n-Butylbenzene 50.0 50.22 ug/L 100 76 - 128
N-Propylbenzene 50.0 49.99 ug/L 100 80 - 122
o-Xylene 50.0 51.01 ug/L 102 80 - 121
m,p-Xylene 100 100.3 ug/L 100 74 - 122
Eurofins Calscience

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15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-221249/4 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA
Analysis Batch: 221249
p-Isopropyltoluene 50.0 51.80 ug/L 104 78 - 125
Analyte

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

Limits
sec-Butylbenzene 50.0 50.86 ug/L 102 78 - 125
Styrene 50.0 52.20 ug/L 104 80 - 124
trans-1,2-Dichloroethene 50.0 48.57 ug/L 97 73 - 120
trans-1,3-Dichloropropene 50.0 58.83 ug/L 118 80 - 132
tert-Butylbenzene 50.0 50.50 ug/L 101 76 - 132
Tetrachloroethene 50.0 52.39 ug/L 105 72 - 135
Toluene 50.0 49.93 ug/L 100 76 - 120
Trichloroethene 50.0 51.72 ug/L 103 80 - 122
Trichlorofluoromethane 20.0 20.40 ug/L 102 69 - 139
Vinyl acetate 50.0 53.73 ug/L 107 74 - 147
Vinyl chloride 20.0 18.57 ug/L 93 70 - 124
1,2-Dichloroethane-d4 (Surr) 70 - 123
Surrogate
99 LCS LCS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 102 80 - 120
Dibromofluoromethane (Surr) 98 78 - 120
Toluene-d8 (Surr) 100 80 - 120
Lab Sample ID: LCSD 570-221249/5 Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA
Analysis Batch: 221249
1,1,1,2-Tetrachloroethane 50.0 60.43 ug/L 121 80 - 128 2 20 Analyte

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

Limits RPD Limit
RPD
1,1,1-Trichloroethane 50.0 55.94 ug/L 112 76 - 122 3 20 1,1,2,2-Tetrachloroethane 50.0 53.77 ug/L 108 79 - 120 2 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 47.55 ug/L 95 53 - 122 1 20
1,1,2-Trichloroethane 50.0 51.75 ug/L 103 80 - 120 1 20 1,1-Dichloroethane 50.0 50.84 ug/L 102 72 - 120 2 20
1,1-Dichloroethene 50.0 49.73 ug/L 99 64 - 121 1 20
1,1-Dichloropropene 50.0 50.27 ug/L 101 77 - 120 1 20
1,2,3-Trichlorobenzene 50.0 51.30 ug/L 103 78 - 136 0 20 1,2,3-Trichloropropane 50.0 54.95 ug/L 110 74 - 120 2 20 1,2,4-Trichlorobenzene 50.0 50.31 ug/L 101 73 - 138 0 20 1,2,4-Trimethylbenzene 50.0 53.10 ug/L 106 80 - 121 1 20 1,2-Dibromo-3-Chloropropane 50.0 58.44 ug/L 117 74 - 120 4 20 1,2-Dibromoethane 50.0 53.71 ug/L 107 80 - 120 1 20
1,2-Dichlorobenzene 50.0 51.82 ug/L 104 80 - 120 1 20
1,2-Dichloroethane 50.0 49.78 ug/L 100 76 - 120 2 20
1,2-Dichloropropane 50.0 51.25 ug/L 102 73 - 122 3 20
1,3,5-Trimethylbenzene 50.0 51.70 ug/L 103 80 - 122 0 20 1,3-Dichlorobenzene 50.0 51.46 ug/L 103 80 - 120 2 20
1,3-Dichloropropane 50.0 50.81 ug/L 102 80 - 120 1 20
1,4-Dichlorobenzene 50.0 50.48 ug/L 101 80 - 120 0 20
2,2-Dichloropropane 50.0 62.56 ug/L 125 60 - 150 0 20
2-Butanone 50.0 53.06 ug/L 106 65 - 128 4 20
2-Chlorotoluene 50.0 50.28 ug/L 101 79 - 120 2 20
Eurofins Calscience

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15 QC Sample Results
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-221249/5 Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA
Analysis Batch: 221249
2-Hexanone 50.0 55.37 ug/L 111 61 - 140 7 20
Analyte

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

Limits RPD Limit
RPD
4-Chlorotoluene 50.0 51.74 ug/L 103 80 - 120 1 20
4-Methyl-2-pentanone 50.0 54.37 ug/L 109 68 - 133 5 20
Acetone 50.0 53.22 ug/L 106 50 - 134 2 25
Benzene 50.0 49.29 ug/L 99 76 - 120 2 20
Bromobenzene 50.0 51.95 ug/L 104 80 - 125 1 20
Bromochloromethane 50.0 49.77 ug/L 100 79 - 120 1 20
Bromodichloromethane 50.0 56.84 ug/L 114 80 - 123 1 20
Bromoform 50.0 66.52 *+ me ug/L 133 80 - 128 3 20
Bromomethane 20.0 19.17 J ug/L 96 64 - 150 1 20
cis-1,2-Dichloroethene 50.0 51.55 ug/L 103 80 - 120 2 20 cis-1,3-Dichloropropene 50.0 55.95 ug/L 112 75 - 133 1 20 Carbon disulfide 50.0 47.94 ug/L 96 67 - 126 2 20
Carbon tetrachloride 50.0 60.39 ug/L 121 80 - 127 4 20
Chlorobenzene 50.0 50.76 ug/L 102 80 - 120 1 20
Chloroethane 20.0 21.17 ug/L 106 67 - 128 5 20
Chloroform 50.0 50.73 ug/L 101 80 - 120 1 20
Chloromethane 20.0 22.87 ug/L 114 69 - 132 0 20
Dibromochloromethane 50.0 62.68 ug/L 125 79 - 130 2 20
Dibromomethane 50.0 51.80 ug/L 104 80 - 120 2 20
Dichlorodifluoromethane 20.0 32.55 *+ ug/L 163 60 - 138 4 21 Ethylbenzene 50.0 51.42 ug/L 103 80 - 120 1 20
Isopropylbenzene 50.0 51.33 ug/L 103 80 - 123 1 20
Methylene Chloride 50.0 47.38 ug/L 95 62 - 133 2 20
Methyl-t-Butyl Ether (MTBE) 50.0 48.85 ug/L 98 64 - 120 1 20 Naphthalene 50.0 51.29 ug/L 103 80 - 120 1 20
n-Butylbenzene 50.0 50.53 ug/L 101 76 - 128 1 20
N-Propylbenzene 50.0 50.68 ug/L 101 80 - 122 1 20
o-Xylene 50.0 51.49 ug/L 103 80 - 121 1 20
m,p-Xylene 100 101.5 ug/L 102 74 - 122 1 20
p-Isopropyltoluene 50.0 52.16 ug/L 104 78 - 125 1 20
sec-Butylbenzene 50.0 51.95 ug/L 104 78 - 125 2 20
Styrene 50.0 52.74 ug/L 105 80 - 124 1 20
trans-1,2-Dichloroethene 50.0 50.33 ug/L 101 73 - 120 4 20 trans-1,3-Dichloropropene 50.0 59.64 ug/L 119 80 - 132 1 20 tert-Butylbenzene 50.0 51.52 ug/L 103 76 - 132 2 20
Tetrachloroethene 50.0 53.27 ug/L 107 72 - 135 2 20
Toluene 50.0 50.95 ug/L 102 76 - 120 2 20
Trichloroethene 50.0 52.74 ug/L 105 80 - 122 2 20
Trichlorofluoromethane 20.0 19.76 ug/L 99 69 - 139 3 20 Vinyl acetate 50.0 56.02 ug/L 112 74 - 147 4 20
Vinyl chloride 20.0 19.17 ug/L 96 70 - 124 3 20
1,2-Dichloroethane-d4 (Surr) 70 - 123
Surrogate
99 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 101 80 - 120
Dibromofluoromethane (Surr) 99 78 - 120
Toluene-d8 (Surr) 100 80 - 120
Eurofins Calscience

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

Limits
1,2-Dichloroethane-d4 (Surr) 70 - 123
Surrogate
97 LCS LCS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 101 80 - 120
Dibromofluoromethane (Surr) 97 78 - 120
Toluene-d8 (Surr) 100 80 - 120
Lab Sample ID: LCSD 570-221559/5 Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA
Analysis Batch: 221559
Trichloroethene 50.0 49.44 ug/L 99 80 - 122 0 20
Analyte

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

Limits RPD Limit
RPD
1,2-Dichloroethane-d4 (Surr) 70 - 123
Surrogate
97 LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 101 80 - 120
Dibromofluoromethane (Surr) 98 78 - 120
Toluene-d8 (Surr) 100 80 - 120
Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: LCS 570-220539/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
1,1,1,2-Tetrachloroethane 50.0 49.04 ug/Kg 98 80 - 124
Analyte

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

Limits
ME %Rec.

Limits
73 - 130
Marginal Exceedance
Status
1,1,1-Trichloroethane 50.0 45.48 ug/Kg 91 73 - 121 73 - 128 1,1,2,2-Tetrachloroethane 50.0 46.07 ug/Kg 92 76 - 123 73 - 127 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 42.77 ug/Kg 86 64 - 120 72 - 127
1,1,2-Trichloroethane 50.0 45.47 ug/Kg 91 80 - 120 73 - 128 1,1-Dichloroethane 50.0 51.77 ug/Kg 104 71 - 120 73 - 127 1,1-Dichloroethene 50.0 52.37 ug/Kg 105 68 - 120 62 - 128 1,1-Dichloropropene 50.0 48.44 ug/Kg 97 74 - 122 69 - 131 1,2,3-Trichlorobenzene 50.0 58.62 ug/Kg 117 80 - 128 72 - 136 1,2,3-Trichloropropane 50.0 47.86 ug/Kg 96 74 - 122 73 - 127 1,2,4-Trichlorobenzene 50.0 55.58 ug/Kg 111 80 - 132 72 - 135 1,2,4-Trimethylbenzene 50.0 47.55 ug/Kg 95 80 - 120 73 - 127 1,2-Dibromo-3-Chloropropane 50.0 46.77 ug/Kg 94 65 - 120 49 - 130 1,2-Dibromoethane 50.0 48.88 ug/Kg 98 80 - 120 73 - 127 1,2-Dichlorobenzene 50.0 49.65 ug/Kg 99 80 - 120 73 - 127 1,2-Dichloroethane 50.0 46.61 ug/Kg 93 76 - 126 73 - 127 1,2-Dichloropropane 50.0 56.78 ug/Kg 114 80 - 120 70 - 134 1,3,5-Trimethylbenzene 50.0 48.91 ug/Kg 98 78 - 124 73 - 127 1,3-Dichlorobenzene 50.0 49.29 ug/Kg 99 80 - 120 73 - 127 1,3-Dichloropropane 50.0 47.72 ug/Kg 95 80 - 120 73 - 127 1,4-Dichlorobenzene 50.0 49.10 ug/Kg 98 80 - 120 73 - 127 2,2-Dichloropropane 50.0 44.10 ug/Kg 88 68 - 129 62 - 135 2-Butanone 50.0 55.62 ug/Kg 111 63 - 129 46 - 149
2-Chlorotoluene 50.0 48.09 ug/Kg 96 77 - 122 73 - 127
2-Hexanone 50.0 61.74 ug/Kg 123 67 - 130 30 - 152
4-Chlorotoluene 50.0 46.06 ug/Kg 92 80 - 120 73 - 127
4-Methyl-2-pentanone 50.0 61.74 *+ me ug/Kg 123 73 - 122 46 - 144 ME Acetone 50.0 57.45 ug/Kg 115 62 - 123 34 - 153
Benzene 50.0 48.47 ug/Kg 97 76 - 120 73 - 127
Bromobenzene 50.0 50.87 ug/Kg 102 80 - 124 73 - 127
Bromochloromethane 50.0 44.21 ug/Kg 88 77 - 120 73 - 129 Bromodichloromethane 50.0 48.39 ug/Kg 97 80 - 127 72 - 135 Bromoform 50.0 45.77 ug/Kg 92 69 - 131 64 - 134
Bromomethane 50.0 47.47 ug/Kg 95 39 - 143 32 - 201
cis-1,2-Dichloroethene 50.0 43.85 ug/Kg 88 77 - 121 73 - 128 cis-1,3-Dichloropropene 50.0 50.77 ug/Kg 102 80 - 121 73 - 129 Carbon disulfide 50.0 43.91 ug/Kg 88 59 - 128 69 - 127
Carbon tetrachloride 50.0 48.13 ug/Kg 96 68 - 132 73 - 133 Chlorobenzene 50.0 49.34 ug/Kg 99 80 - 120 73 - 127
Chloroethane 50.0 51.97 ug/Kg 104 59 - 135 64 - 142
Chloroform 50.0 42.44 ug/Kg 85 77 - 121 66 - 137
Chloromethane 50.0 56.07 ug/Kg 112 51 - 129 24 - 151
Dibromochloromethane 50.0 47.44 ug/Kg 95 77 - 127 73 - 130 Dibromomethane 50.0 45.46 ug/Kg 91 80 - 124 73 - 128
Dichlorodifluoromethane 50.0 32.92 ug/Kg 66 53 - 133 26 - 140 Ethylbenzene 50.0 49.22 ug/Kg 98 80 - 120 73 - 127
Isopropylbenzene 50.0 50.25 ug/Kg 100 80 - 123 73 - 127 Methylene Chloride 50.0 45.01 ug/Kg 90 70 - 120 69 - 129 Methyl-t-Butyl Ether (MTBE) 50.0 46.47 ug/Kg 93 70 - 120 62 - 148 Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-220539/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Naphthalene 50.0 56.41 ug/Kg 113 76 - 121
Analyte

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

Limits
ME %Rec.

Limits
65 - 130
Marginal Exceedance
Status
n-Butylbenzene 50.0 48.44 ug/Kg 97 78 - 123 69 - 127
N-Propylbenzene 50.0 49.32 ug/Kg 99 78 - 123 73 - 127
o-Xylene 50.0 49.57 ug/Kg 99 76 - 125 73 - 127
m,p-Xylene 100 96.54 ug/Kg 97 75 - 122 73 - 127
p-Isopropyltoluene 50.0 48.59 ug/Kg 97 80 - 121 73 - 127 sec-Butylbenzene 50.0 48.24 ug/Kg 96 80 - 120 68 - 128
Styrene 50.0 49.60 ug/Kg 99 79 - 123 73 - 127
trans-1,2-Dichloroethene 50.0 41.41 ug/Kg 83 71 - 120 72 - 127 trans-1,3-Dichloropropene 50.0 46.54 ug/Kg 93 80 - 126 73 - 133 tert-Butylbenzene 50.0 49.15 ug/Kg 98 80 - 120 65 - 128 Tetrachloroethene 50.0 50.68 ug/Kg 101 80 - 123 60 - 133 Toluene 50.0 50.70 ug/Kg 101 79 - 120 73 - 127
Trichloroethene 50.0 50.04 ug/Kg 100 80 - 120 73 - 127
Trichlorofluoromethane 50.0 45.85 ug/Kg 92 69 - 133 34 - 179 Vinyl acetate 50.0 44.99 ug/Kg 90 78 - 138 61 - 143
Vinyl chloride 50.0 57.18 ug/Kg 114 65 - 129 67 - 148
Summary
Number of
Analytes Reported
66 Number of Marginal
Exceedances Allowed
3 Number of Marginal
Exceedances Found
1 ME = Marginal Exceedance
Lab Sample ID: LCSD 570-220539/2-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
1,1,1,2-Tetrachloroethane 50.0 49.34 ug/Kg 99 80 - 124
Analyte

LCSD LCSD
Result Qualifier Unit %Rec
Spike
Added
%Rec.

Limits
ME %Rec.

Limits
73 - 130
Marginal Exceedance
Status
1,1,1-Trichloroethane 50.0 46.04 ug/Kg 92 73 - 121 73 - 128 1,1,2,2-Tetrachloroethane 50.0 46.96 ug/Kg 94 76 - 123 73 - 127 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 43.91 ug/Kg 88 64 - 120 72 - 127
1,1,2-Trichloroethane 50.0 46.20 ug/Kg 92 80 - 120 73 - 128 1,1-Dichloroethane 50.0 52.31 ug/Kg 105 71 - 120 73 - 127 1,1-Dichloroethene 50.0 52.28 ug/Kg 105 68 - 120 62 - 128 1,1-Dichloropropene 50.0 49.37 ug/Kg 99 74 - 122 69 - 131 1,2,3-Trichlorobenzene 50.0 57.33 ug/Kg 115 80 - 128 72 - 136 1,2,3-Trichloropropane 50.0 48.64 ug/Kg 97 74 - 122 73 - 127 1,2,4-Trichlorobenzene 50.0 54.79 ug/Kg 110 80 - 132 72 - 135 1,2,4-Trimethylbenzene 50.0 45.87 ug/Kg 92 80 - 120 73 - 127 1,2-Dibromo-3-Chloropropane 50.0 46.73 ug/Kg 93 65 - 120 49 - 130 1,2-Dibromoethane 50.0 49.31 ug/Kg 99 80 - 120 73 - 127 1,2-Dichlorobenzene 50.0 49.58 ug/Kg 99 80 - 120 73 - 127 1,2-Dichloroethane 50.0 48.00 ug/Kg 96 76 - 126 73 - 127 1,2-Dichloropropane 50.0 57.20 ug/Kg 114 80 - 120 70 - 134 1,3,5-Trimethylbenzene 50.0 48.11 ug/Kg 96 78 - 124 73 - 127 1,3-Dichlorobenzene 50.0 48.60 ug/Kg 97 80 - 120 73 - 127 1,3-Dichloropropane 50.0 47.75 ug/Kg 95 80 - 120 73 - 127 1,4-Dichlorobenzene 50.0 47.87 ug/Kg 96 80 - 120 73 - 127 Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-220539/2-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
2,2-Dichloropropane 50.0 44.31 ug/Kg 89 68 - 129
Analyte

LCSD LCSD
Result Qualifier Unit %Rec
Spike
Added
%Rec.

Limits
ME %Rec.

Limits
62 - 135
Marginal Exceedance
Status
2-Butanone 50.0 61.10 ug/Kg 122 63 - 129 46 - 149
2-Chlorotoluene 50.0 47.51 ug/Kg 95 77 - 122 73 - 127
2-Hexanone 50.0 62.46 ug/Kg 125 67 - 130 30 - 152
4-Chlorotoluene 50.0 45.29 ug/Kg 91 80 - 120 73 - 127
4-Methyl-2-pentanone 50.0 64.09 *+ me ug/Kg 128 73 - 122 46 - 144 ME Acetone 50.0 61.71 ug/Kg 123 62 - 123 34 - 153
Benzene 50.0 48.61 ug/Kg 97 76 - 120 73 - 127
Bromobenzene 50.0 49.46 ug/Kg 99 80 - 124 73 - 127
Bromochloromethane 50.0 45.20 ug/Kg 90 77 - 120 73 - 129 Bromodichloromethane 50.0 48.84 ug/Kg 98 80 - 127 72 - 135 Bromoform 50.0 46.76 ug/Kg 94 69 - 131 64 - 134
Bromomethane 50.0 48.18 ug/Kg 96 39 - 143 32 - 201
cis-1,2-Dichloroethene 50.0 44.03 ug/Kg 88 77 - 121 73 - 128 cis-1,3-Dichloropropene 50.0 51.79 ug/Kg 104 80 - 121 73 - 129 Carbon disulfide 50.0 43.55 ug/Kg 87 59 - 128 69 - 127
Carbon tetrachloride 50.0 48.09 ug/Kg 96 68 - 132 73 - 133 Chlorobenzene 50.0 48.98 ug/Kg 98 80 - 120 73 - 127
Chloroethane 50.0 52.70 ug/Kg 105 59 - 135 64 - 142
Chloroform 50.0 42.69 ug/Kg 85 77 - 121 66 - 137
Chloromethane 50.0 56.27 ug/Kg 113 51 - 129 24 - 151
Dibromochloromethane 50.0 48.48 ug/Kg 97 77 - 127 73 - 130 Dibromomethane 50.0 46.66 ug/Kg 93 80 - 124 73 - 128
Dichlorodifluoromethane 50.0 32.88 ug/Kg 66 53 - 133 26 - 140 Ethylbenzene 50.0 48.39 ug/Kg 97 80 - 120 73 - 127
Isopropylbenzene 50.0 48.93 ug/Kg 98 80 - 123 73 - 127
Methylene Chloride 50.0 45.21 ug/Kg 90 70 - 120 69 - 129 Methyl-t-Butyl Ether (MTBE) 50.0 47.75 ug/Kg 96 70 - 120 62 - 148 Naphthalene 50.0 56.13 ug/Kg 112 76 - 121 65 - 130
n-Butylbenzene 50.0 47.68 ug/Kg 95 78 - 123 69 - 127
N-Propylbenzene 50.0 48.54 ug/Kg 97 78 - 123 73 - 127
o-Xylene 50.0 48.34 ug/Kg 97 76 - 125 73 - 127
m,p-Xylene 100 94.44 ug/Kg 94 75 - 122 73 - 127
p-Isopropyltoluene 50.0 47.20 ug/Kg 94 80 - 121 73 - 127 sec-Butylbenzene 50.0 47.35 ug/Kg 95 80 - 120 68 - 128
Styrene 50.0 48.33 ug/Kg 97 79 - 123 73 - 127
trans-1,2-Dichloroethene 50.0 42.69 ug/Kg 85 71 - 120 72 - 127 trans-1,3-Dichloropropene 50.0 47.18 ug/Kg 94 80 - 126 73 - 133 tert-Butylbenzene 50.0 48.16 ug/Kg 96 80 - 120 65 - 128 Tetrachloroethene 50.0 50.75 ug/Kg 102 80 - 123 60 - 133 Toluene 50.0 49.49 ug/Kg 99 79 - 120 73 - 127
Trichloroethene 50.0 50.27 ug/Kg 101 80 - 120 73 - 127
Trichlorofluoromethane 50.0 45.75 ug/Kg 91 69 - 133 34 - 179 Vinyl acetate 50.0 49.57 ug/Kg 99 78 - 138 61 - 143
Vinyl chloride 50.0 57.69 ug/Kg 115 65 - 129 67 - 148
Summary
Number of
Analytes Reported
66 Number of Marginal
Exceedances Allowed
3 Number of Marginal
Exceedances Found
1 Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
ME = Marginal Exceedance
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: LCS 570-221249/4 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA
1,1,1,2-Tetrachloroethane 50.0 59.08 ug/L 118 80 - 128
Analyte

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

Limits
ME %Rec.

Limits
72 - 136
Marginal Exceedance
Status
1,1,1-Trichloroethane 50.0 54.52 ug/L 109 76 - 122 68 - 130 1,1,2,2-Tetrachloroethane 50.0 52.44 ug/L 105 79 - 120 72 - 127 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 47.09 ug/L 94 53 - 122 42 - 134
1,1,2-Trichloroethane 50.0 51.01 ug/L 102 80 - 120 73 - 127 1,1-Dichloroethane 50.0 49.95 ug/L 100 72 - 120 64 - 128 1,1-Dichloroethene 50.0 49.07 ug/L 98 64 - 121 55 - 131 1,1-Dichloropropene 50.0 49.56 ug/L 99 77 - 120 70 - 127 1,2,3-Trichlorobenzene 50.0 51.25 ug/L 103 78 - 136 68 - 146 1,2,3-Trichloropropane 50.0 53.64 ug/L 107 74 - 120 66 - 128 1,2,4-Trichlorobenzene 50.0 50.30 ug/L 101 73 - 138 62 - 149 1,2,4-Trimethylbenzene 50.0 52.50 ug/L 105 80 - 121 73 - 128 1,2-Dibromo-3-Chloropropane 50.0 56.43 ug/L 113 74 - 120 66 - 128 1,2-Dibromoethane 50.0 53.25 ug/L 107 80 - 120 73 - 127 1,2-Dichlorobenzene 50.0 51.19 ug/L 102 80 - 120 73 - 127 1,2-Dichloroethane 50.0 48.88 ug/L 98 76 - 120 69 - 127 1,2-Dichloropropane 50.0 49.60 ug/L 99 73 - 122 65 - 130 1,3,5-Trimethylbenzene 50.0 51.50 ug/L 103 80 - 122 73 - 129 1,3-Dichlorobenzene 50.0 50.46 ug/L 101 80 - 120 73 - 127 1,3-Dichloropropane 50.0 50.12 ug/L 100 80 - 120 73 - 127 1,4-Dichlorobenzene 50.0 50.33 ug/L 101 80 - 120 73 - 127 2,2-Dichloropropane 50.0 62.53 ug/L 125 60 - 150 45 - 165 2-Butanone 50.0 51.05 ug/L 102 65 - 128 55 - 139
2-Chlorotoluene 50.0 49.49 ug/L 99 79 - 120 72 - 127
2-Hexanone 50.0 51.61 ug/L 103 61 - 140 48 - 153
4-Chlorotoluene 50.0 51.02 ug/L 102 80 - 120 73 - 127
4-Methyl-2-pentanone 50.0 51.49 ug/L 103 68 - 133 57 - 144 Acetone 50.0 54.29 ug/L 109 50 - 134 36 - 148
Benzene 50.0 48.10 ug/L 96 76 - 120 69 - 127
Bromobenzene 50.0 51.63 ug/L 103 80 - 125 73 - 133
Bromochloromethane 50.0 49.31 ug/L 99 79 - 120 72 - 127 Bromodichloromethane 50.0 56.31 ug/L 113 80 - 123 73 - 130 Bromoform 50.0 64.54 *+ me ug/L 129 80 - 128 72 - 136 ME Bromomethane 20.0 19.32 J ug/L 97 64 - 150 50 - 164
cis-1,2-Dichloroethene 50.0 50.32 ug/L 101 80 - 120 73 - 127 cis-1,3-Dichloropropene 50.0 55.18 ug/L 110 75 - 133 65 - 143 Carbon disulfide 50.0 47.21 ug/L 94 67 - 126 57 - 136
Carbon tetrachloride 50.0 58.13 ug/L 116 80 - 127 72 - 135 Chlorobenzene 50.0 50.16 ug/L 100 80 - 120 73 - 127
Chloroethane 20.0 20.06 ug/L 100 67 - 128 57 - 138
Chloroform 50.0 50.32 ug/L 101 80 - 120 73 - 127
Chloromethane 20.0 22.88 ug/L 114 69 - 132 59 - 143
Dibromochloromethane 50.0 61.50 ug/L 123 79 - 130 71 - 139 Dibromomethane 50.0 50.87 ug/L 102 80 - 120 73 - 127
Dichlorodifluoromethane 20.0 31.16 *+ ug/L 156 60 - 138 47 - 151 X Ethylbenzene 50.0 50.99 ug/L 102 80 - 120 73 - 127
Isopropylbenzene 50.0 50.60 ug/L 101 80 - 123 73 - 130
Eurofins Calscience

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15 Marginal Exceedance (ME) Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-221249/4 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA
Methylene Chloride 50.0 46.63 ug/L 93 62 - 133
Analyte

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

Limits
ME %Rec.

Limits
50 - 145
Marginal Exceedance
Status
Methyl-t-Butyl Ether (MTBE) 50.0 48.39 ug/L 97 64 - 120 55 - 129 Naphthalene 50.0 50.58 ug/L 101 80 - 120 73 - 127
n-Butylbenzene 50.0 50.22 ug/L 100 76 - 128 67 - 137
N-Propylbenzene 50.0 49.99 ug/L 100 80 - 122 73 - 129
o-Xylene 50.0 51.01 ug/L 102 80 - 121 73 - 128
m,p-Xylene 100 100.3 ug/L 100 74 - 122 66 - 130
p-Isopropyltoluene 50.0 51.80 ug/L 104 78 - 125 70 - 133 sec-Butylbenzene 50.0 50.86 ug/L 102 78 - 125 70 - 133
Styrene 50.0 52.20 ug/L 104 80 - 124 73 - 131
trans-1,2-Dichloroethene 50.0 48.57 ug/L 97 73 - 120 65 - 128 trans-1,3-Dichloropropene 50.0 58.83 ug/L 118 80 - 132 71 - 141 tert-Butylbenzene 50.0 50.50 ug/L 101 76 - 132 67 - 141 Tetrachloroethene 50.0 52.39 ug/L 105 72 - 135 62 - 146 Toluene 50.0 49.93 ug/L 100 76 - 120 69 - 127
Trichloroethene 50.0 51.72 ug/L 103 80 - 122 73 - 129
Trichlorofluoromethane 20.0 20.40 ug/L 102 69 - 139 57 - 151 Vinyl acetate 50.0 53.73 ug/L 107 74 - 147 62 - 159
Vinyl chloride 20.0 18.57 ug/L 93 70 - 124 61 - 133
Summary
Number of
Analytes Reported
66 Number of Marginal
Exceedances Allowed
3 Number of Marginal
Exceedances Found
1 ME = Marginal Exceedance
X = % Recovery is greater than widest possible limit
Lab Sample ID: LCSD 570-221249/5 Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA
1,1,1,2-Tetrachloroethane 50.0 60.43 ug/L 121 80 - 128
Analyte

LCSD LCSD
Result Qualifier Unit %Rec
Spike
Added
%Rec.

Limits
ME %Rec.

Limits
72 - 136
Marginal Exceedance
Status
1,1,1-Trichloroethane 50.0 55.94 ug/L 112 76 - 122 68 - 130 1,1,2,2-Tetrachloroethane 50.0 53.77 ug/L 108 79 - 120 72 - 127 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 47.55 ug/L 95 53 - 122 42 - 134
1,1,2-Trichloroethane 50.0 51.75 ug/L 103 80 - 120 73 - 127 1,1-Dichloroethane 50.0 50.84 ug/L 102 72 - 120 64 - 128 1,1-Dichloroethene 50.0 49.73 ug/L 99 64 - 121 55 - 131 1,1-Dichloropropene 50.0 50.27 ug/L 101 77 - 120 70 - 127 1,2,3-Trichlorobenzene 50.0 51.30 ug/L 103 78 - 136 68 - 146 1,2,3-Trichloropropane 50.0 54.95 ug/L 110 74 - 120 66 - 128 1,2,4-Trichlorobenzene 50.0 50.31 ug/L 101 73 - 138 62 - 149 1,2,4-Trimethylbenzene 50.0 53.10 ug/L 106 80 - 121 73 - 128 1,2-Dibromo-3-Chloropropane 50.0 58.44 ug/L 117 74 - 120 66 - 128 1,2-Dibromoethane 50.0 53.71 ug/L 107 80 - 120 73 - 127 1,2-Dichlorobenzene 50.0 51.82 ug/L 104 80 - 120 73 - 127 1,2-Dichloroethane 50.0 49.78 ug/L 100 76 - 120 69 - 127 1,2-Dichloropropane 50.0 51.25 ug/L 102 73 - 122 65 - 130 1,3,5-Trimethylbenzene 50.0 51.70 ug/L 103 80 - 122 73 - 129 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-221249/5 Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA
1,3-Dichlorobenzene 50.0 51.46 ug/L 103 80 - 120
Analyte

LCSD LCSD
Result Qualifier Unit %Rec
Spike
Added
%Rec.

Limits
ME %Rec.

Limits
73 - 127
Marginal Exceedance
Status
1,3-Dichloropropane 50.0 50.81 ug/L 102 80 - 120 73 - 127 1,4-Dichlorobenzene 50.0 50.48 ug/L 101 80 - 120 73 - 127 2,2-Dichloropropane 50.0 62.56 ug/L 125 60 - 150 45 - 165 2-Butanone 50.0 53.06 ug/L 106 65 - 128 55 - 139
2-Chlorotoluene 50.0 50.28 ug/L 101 79 - 120 72 - 127
2-Hexanone 50.0 55.37 ug/L 111 61 - 140 48 - 153
4-Chlorotoluene 50.0 51.74 ug/L 103 80 - 120 73 - 127
4-Methyl-2-pentanone 50.0 54.37 ug/L 109 68 - 133 57 - 144 Acetone 50.0 53.22 ug/L 106 50 - 134 36 - 148
Benzene 50.0 49.29 ug/L 99 76 - 120 69 - 127
Bromobenzene 50.0 51.95 ug/L 104 80 - 125 73 - 133
Bromochloromethane 50.0 49.77 ug/L 100 79 - 120 72 - 127 Bromodichloromethane 50.0 56.84 ug/L 114 80 - 123 73 - 130 Bromoform 50.0 66.52 *+ me ug/L 133 80 - 128 72 - 136 ME Bromomethane 20.0 19.17 J ug/L 96 64 - 150 50 - 164
cis-1,2-Dichloroethene 50.0 51.55 ug/L 103 80 - 120 73 - 127 cis-1,3-Dichloropropene 50.0 55.95 ug/L 112 75 - 133 65 - 143 Carbon disulfide 50.0 47.94 ug/L 96 67 - 126 57 - 136
Carbon tetrachloride 50.0 60.39 ug/L 121 80 - 127 72 - 135 Chlorobenzene 50.0 50.76 ug/L 102 80 - 120 73 - 127
Chloroethane 20.0 21.17 ug/L 106 67 - 128 57 - 138
Chloroform 50.0 50.73 ug/L 101 80 - 120 73 - 127
Chloromethane 20.0 22.87 ug/L 114 69 - 132 59 - 143
Dibromochloromethane 50.0 62.68 ug/L 125 79 - 130 71 - 139 Dibromomethane 50.0 51.80 ug/L 104 80 - 120 73 - 127
Dichlorodifluoromethane 20.0 32.55 *+ ug/L 163 60 - 138 47 - 151 X Ethylbenzene 50.0 51.42 ug/L 103 80 - 120 73 - 127
Isopropylbenzene 50.0 51.33 ug/L 103 80 - 123 73 - 130
Methylene Chloride 50.0 47.38 ug/L 95 62 - 133 50 - 145 Methyl-t-Butyl Ether (MTBE) 50.0 48.85 ug/L 98 64 - 120 55 - 129 Naphthalene 50.0 51.29 ug/L 103 80 - 120 73 - 127
n-Butylbenzene 50.0 50.53 ug/L 101 76 - 128 67 - 137
N-Propylbenzene 50.0 50.68 ug/L 101 80 - 122 73 - 129
o-Xylene 50.0 51.49 ug/L 103 80 - 121 73 - 128
m,p-Xylene 100 101.5 ug/L 102 74 - 122 66 - 130
p-Isopropyltoluene 50.0 52.16 ug/L 104 78 - 125 70 - 133 sec-Butylbenzene 50.0 51.95 ug/L 104 78 - 125 70 - 133
Styrene 50.0 52.74 ug/L 105 80 - 124 73 - 131
trans-1,2-Dichloroethene 50.0 50.33 ug/L 101 73 - 120 65 - 128 trans-1,3-Dichloropropene 50.0 59.64 ug/L 119 80 - 132 71 - 141 tert-Butylbenzene 50.0 51.52 ug/L 103 76 - 132 67 - 141 Tetrachloroethene 50.0 53.27 ug/L 107 72 - 135 62 - 146 Toluene 50.0 50.95 ug/L 102 76 - 120 69 - 127
Trichloroethene 50.0 52.74 ug/L 105 80 - 122 73 - 129
Trichlorofluoromethane 20.0 19.76 ug/L 99 69 - 139 57 - 151 Vinyl acetate 50.0 56.02 ug/L 112 74 - 147 62 - 159
Vinyl chloride 20.0 19.17 ug/L 96 70 - 124 61 - 133
Summary
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Number of
Analytes Reported
66 Number of Marginal
Exceedances Allowed
3 Number of Marginal
Exceedances Found
1 ME = Marginal Exceedance
X = % Recovery is greater than widest possible limit
Eurofins Calscience

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15 QC Association Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A

GC/MS VOA
Prep Batch: 220539
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87522-1 DGA-024-1 Total/NA Solid 5030C
570-87522-2 DGA-024-3 Total/NA Solid 5030C
570-87522-3 DGA-024-4.5 Total/NA Solid 5030C
570-87522-4 DGA-025-1.5 Total/NA Solid 5030C
570-87522-5 DGA-025-3 Total/NA Solid 5030C
570-87522-6 DGA-025-5 Total/NA Solid 5030C
570-87522-7 DGA-026-3 Total/NA Solid 5030C
570-87522-8 DGA-026-4.5 Total/NA Solid 5030C
570-87522-9 DGA-026-6 Total/NA Solid 5030C
MB 570-220539/3-A Method Blank Total/NA Solid 5030C
LCS 570-220539/1-A Lab Control Sample Total/NA Solid 5030C LCSD 570-220539/2-A Lab Control Sample Dup Total/NA Solid 5030C 570-87522-7 MS DGA-026-3 Total/NA Solid 5030C
570-87522-7 MSD DGA-026-3 Total/NA Solid 5030C
Analysis Batch: 220591
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87522-1 DGA-024-1 Total/NA Solid 8260B 220539
570-87522-2 DGA-024-3 Total/NA Solid 8260B 220539
570-87522-3 DGA-024-4.5 Total/NA Solid 8260B 220539
570-87522-4 DGA-025-1.5 Total/NA Solid 8260B 220539
570-87522-5 DGA-025-3 Total/NA Solid 8260B 220539
570-87522-6 DGA-025-5 Total/NA Solid 8260B 220539
570-87522-7 DGA-026-3 Total/NA Solid 8260B 220539
570-87522-8 DGA-026-4.5 Total/NA Solid 8260B 220539
570-87522-9 DGA-026-6 Total/NA Solid 8260B 220539
MB 570-220539/3-A Method Blank Total/NA Solid 8260B 220539 LCS 570-220539/1-A Lab Control Sample Total/NA Solid 8260B 220539 LCSD 570-220539/2-A Lab Control Sample Dup Total/NA Solid 8260B 220539 570-87522-7 MS DGA-026-3 Total/NA Solid 8260B 220539
570-87522-7 MSD DGA-026-3 Total/NA Solid 8260B 220539
Prep Batch: 220832
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch LCS 570-220832/1-A Lab Control Sample Total/NA Solid 5030C LCSD 570-220832/2-A Lab Control Sample Dup Total/NA Solid 5030C 570-87808-A-19-D MS Matrix Spike Total/NA Solid 5030C
570-87808-A-19-E MSD Matrix Spike Duplicate Total/NA Solid 5030C Analysis Batch: 220837
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87522-1 - DL DGA-024-1 Total/NA Solid 8260B 220862
570-87522-4 - DL DGA-025-1.5 Total/NA Solid 8260B 220862 MB 570-220862/1-A Method Blank Total/NA Solid 8260B 220862 LCS 570-220832/1-A Lab Control Sample Total/NA Solid 8260B 220832 LCSD 570-220832/2-A Lab Control Sample Dup Total/NA Solid 8260B 220832 570-87808-A-19-D MS Matrix Spike Total/NA Solid 8260B 220832 570-87808-A-19-E MSD Matrix Spike Duplicate Total/NA Solid 8260B 220832 Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A

GC/MS VOA
Prep Batch: 220862
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87522-1 - DL DGA-024-1 Total/NA Solid 5030C
570-87522-4 - DL DGA-025-1.5 Total/NA Solid 5030C
MB 570-220862/1-A Method Blank Total/NA Solid 5030C
Analysis Batch: 221249
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87522-10 DGA-005-20-GW Total/NA Water 8260B
570-87522-11 TB-1 Total/NA Water 8260B
MB 570-221249/8 Method Blank Total/NA Water 8260B
LCS 570-221249/4 Lab Control Sample Total/NA Water 8260B LCSD 570-221249/5 Lab Control Sample Dup Total/NA Water 8260B Analysis Batch: 221559
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-87522-10 - DL DGA-005-20-GW Total/NA Water 8260B
MB 570-221559/8 Method Blank Total/NA Water 8260B
LCS 570-221559/4 Lab Control Sample Total/NA Water 8260B LCSD 570-221559/5 Lab Control Sample Dup Total/NA Water 8260B Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-024-1 Lab Sample ID: 570-87522-1
Date Collected: 03/10/22 09:19 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.11 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 15:57 U4JL ECL 4 Instrument ID: GCMSLL
Total/NA Prep 5030C DL 5.06 g 10 mL 220862 03/19/22 11:12 AH8S ECL 4 Total/NA Analysis 8260B DL 50 5 mL 5 mL 220837 03/19/22 21:39 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-024-3 Lab Sample ID: 570-87522-2
Date Collected: 03/10/22 09:21 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.07 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 16:22 U4JL ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-024-4.5 Lab Sample ID: 570-87522-3 Date Collected: 03/10/22 09:23 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.08 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 16:48 U4JL ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-025-1.5 Lab Sample ID: 570-87522-4 Date Collected: 03/10/22 08:58 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.09 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 17:14 U4JL ECL 4 Instrument ID: GCMSLL
Total/NA Prep 5030C DL 5.01 g 10 mL 220862 03/19/22 11:12 AH8S ECL 4 Total/NA Analysis 8260B DL 100 5 mL 5 mL 220837 03/19/22 22:05 OH1 ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-025-3 Lab Sample ID: 570-87522-5
Date Collected: 03/10/22 09:03 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.04 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 17:39 U4JL ECL 4 Instrument ID: GCMSLL
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: DGA-025-5 Lab Sample ID: 570-87522-6
Date Collected: 03/10/22 09:05 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.10 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 18:05 U4JL ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-026-3 Lab Sample ID: 570-87522-7
Date Collected: 03/10/22 08:42 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.07 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 13:23 U4JL ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-026-4.5 Lab Sample ID: 570-87522-8 Date Collected: 03/10/22 08:43 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.02 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 18:30 U4JL ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-026-6 Lab Sample ID: 570-87522-9
Date Collected: 03/10/22 08:44 Matrix: Solid
Date Received: 03/10/22 18:20
Prep 5030C 220539 03/18/22 08:53 AH8S ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.12 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 220591 03/18/22 18:56 U4JL ECL 4 Instrument ID: GCMSLL
Client Sample ID: DGA-005-20-GW Lab Sample ID: 570-87522-10 Date Collected: 03/10/22 09:34 Matrix: Water
Date Received: 03/10/22 18:20
Analysis 8260B 1 221249 03/22/22 18:45 KHF2 ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5 mL 5 mL
Instrument ID: GCMSXX
Total/NA Analysis 8260B DL 10 5 mL 5 mL 221559 03/23/22 21:13 OH1 ECL 4 Instrument ID: GCMSXX
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Client Sample ID: TB-1 Lab Sample ID: 570-87522-11
Date Collected: 03/10/22 14:18 Matrix: Water
Date Received: 03/10/22 18:20
Analysis 8260B 1 221249 03/22/22 18:21 KHF2 ECL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5 mL 5 mL
Instrument ID: GCMSXX
Laboratory References:

ECL 4 = Eurofins Calscience Tustin, 2841 Dow Avenue, Tustin, CA 92780, TEL (714)895-5494 Eurofins Calscience

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15 Accreditation/Certification Summary
Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Laboratory: Eurofins Calscience
The accreditations/certifications listed below are applicable to this report.

Authority Program Identification Number Expiration Date California State 2944 09-30-22
Oregon NELAP CA300001 01-31-23
Eurofins Calscience

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Client: Haley & Aldrich, Inc. Job ID: 570-87522-1
Project/Site: Rohr Chula Vista - Parcel A
Method Method Description Protocol Laboratory
8260B Volatile Organic Compounds (GC/MS) SW846 ECL 4
5030C Purge and Trap SW846 ECL 4
Protocol References:

SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.

Laboratory References:

ECL 4 = Eurofins Calscience Tustin, 2841 Dow Avenue, Tustin, CA 92780, TEL (714)895-5494 Eurofins Calscience

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Chula Vista City CouncilNovember 18, 2025

Chula Vista City Council
November 18, 2025