Cities Index.
Agenda packet

Burbank City Council
June 2, 2026

Document
Agenda packet
Meeting
June 2, 2026
Body
Burbank City Council
Pages
154
Original file
230.7 MB
Text extracted from the city's file for reading and search. Open the original on d3n9y02raazwpg.cloudfront.net. That file is the official record.

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15 ATTACHMENT 6 - 3643
4616
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8081B - Organochlorine Pesticides (GC) (Continued) Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 31 5.1 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Chlordane
delta-BHC ND 6.2 1.2 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Dieldrin ND 6.2 0.68 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Endosulfan I ND 6.2 1.3 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Endosulfan II ND 6.2 0.68 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Endosulfan sulfate ND 6.2 0.78 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Endrin ND 6.2 0.83 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Endrin aldehyde ND 6.2 4.1 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Endrin ketone ND 6.2 1.1 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 gamma-Chlordane ND 6.2 4.2 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 gamma-BHC (Lindane) ND 6.2 0.64 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Heptachlor ND 6.2 0.74 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Heptachlor epoxide ND 6.2 0.67 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Methoxychlor ND 6.2 1.5 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Toxaphene ND 31 19 ug/Kg ☼ 03/04/26 12:30 03/06/26 23:31 1 Tetrachloro-m-xylene (Surr) 69 38 - 148 03/04/26 12:30 03/06/26 23:31 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac DCB Decachlorobiphenyl (Surr) 76 37 - 151 03/04/26 12:30 03/06/26 23:31 1 Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 5.4 0.77 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 4,4'-DDD
4,4'-DDE ND 5.4 0.74 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 4,4'-DDT ND 5.4 1.3 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Aldrin ND 5.4 1.7 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 alpha-BHC ND 5.4 0.64 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 alpha-Chlordane ND 5.4 0.61 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 beta-BHC ND 5.4 0.97 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Chlordane ND 27 4.4 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 delta-BHC ND 5.4 1.0 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Dieldrin ND 5.4 0.59 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Endosulfan I ND 5.4 1.2 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Endosulfan II ND 5.4 0.59 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Endosulfan sulfate ND 5.4 0.68 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Endrin ND 5.4 0.73 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Endrin aldehyde ND 5.4 3.6 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Endrin ketone ND 5.4 0.97 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 gamma-Chlordane ND 5.4 3.6 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 gamma-BHC (Lindane) ND 5.4 0.56 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Heptachlor ND 5.4 0.65 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Heptachlor epoxide ND 5.4 0.58 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Methoxychlor ND 5.4 1.3 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Toxaphene ND 27 17 ug/Kg ☼ 03/04/26 09:02 03/05/26 21:43 1 Tetrachloro-m-xylene (Surr) 83 38 - 148 03/04/26 09:02 03/05/26 21:43 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac DCB Decachlorobiphenyl (Surr) 84 37 - 151 03/04/26 09:02 03/05/26 21:43 1 Eurofins Calscience

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15 ATTACHMENT 6 - 3644
4617
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique
Client Sample ID: EKI-SB-1-5.5 Lab Sample ID: 570-269712-4 Date Collected: 02/28/26 15:05 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.49 0.36 mg/Kg 03/04/26 12:39 03/17/26 19:52 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Chlorpyrifos ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Coumaphos ND 0.49 0.19 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Demeton-o/s ND 0.99 0.27 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Diazinon ND 0.49 0.099 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Dichlorvos ND *+ F1 0.49 0.45 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Disulfoton ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Ethoprop ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Fensulfothion ND 0.49 0.25 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Fenthion ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Merphos ND 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Methyl parathion ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Mevinphos ND *+ 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Naled ND 3.9 2.7 mg/Kg 03/04/26 12:39 03/17/26 19:52 1
Phorate ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Ronnel ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Stirophos ND 2.0 0.14 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Tokuthion ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Trichloronate ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 19:52 1 Tributylphosphate 80 20 - 158 03/04/26 12:39 03/17/26 19:52 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-2-3.0 Lab Sample ID: 570-269712-5 Date Collected: 03/01/26 10:59 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.50 0.37 mg/Kg 03/04/26 12:39 03/17/26 20:39 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.50 0.24 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Chlorpyrifos ND 0.50 0.12 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Coumaphos ND 0.50 0.19 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Demeton-o/s ND 0.99 0.27 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Diazinon ND 0.50 0.10 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Dichlorvos ND *+ 0.50 0.45 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Disulfoton ND 0.50 0.12 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Ethoprop ND 0.50 0.11 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Fensulfothion ND 0.50 0.25 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Fenthion ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Merphos ND 0.50 0.22 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Methyl parathion ND 0.50 0.24 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Mevinphos ND *+ 0.50 0.21 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Naled ND 4.0 2.7 mg/Kg 03/04/26 12:39 03/17/26 20:39 1
Phorate ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Ronnel ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Stirophos ND 2.0 0.14 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Tokuthion ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Trichloronate ND 0.50 0.12 mg/Kg 03/04/26 12:39 03/17/26 20:39 1 Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique (Continued)
Tributylphosphate 86 20 - 158 03/04/26 12:39 03/17/26 20:39 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-3-5.5 Lab Sample ID: 570-269712-6 Date Collected: 03/01/26 11:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.49 0.36 mg/Kg 03/04/26 12:39 03/17/26 21:26 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Chlorpyrifos ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Coumaphos ND 0.49 0.19 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Demeton-o/s ND 0.99 0.27 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Diazinon ND 0.49 0.099 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Dichlorvos ND *+ 0.49 0.45 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Disulfoton ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Ethoprop ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Fensulfothion ND 0.49 0.25 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Fenthion ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Merphos ND 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Methyl parathion ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Mevinphos ND *+ 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Naled ND 4.0 2.7 mg/Kg 03/04/26 12:39 03/17/26 21:26 1
Phorate ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Ronnel ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Stirophos ND 2.0 0.14 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Tokuthion ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Trichloronate ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 21:26 1 Tributylphosphate 84 20 - 158 03/04/26 12:39 03/17/26 21:26 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-4-5.5 Lab Sample ID: 570-269712-7 Date Collected: 03/01/26 12:11 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.49 0.36 mg/Kg 03/04/26 12:39 03/17/26 22:14 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Chlorpyrifos ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Coumaphos ND 0.49 0.19 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Demeton-o/s ND 0.97 0.27 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Diazinon ND 0.49 0.098 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Dichlorvos ND *+ 0.49 0.44 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Disulfoton ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Ethoprop ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Fensulfothion ND 0.49 0.25 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Fenthion ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Merphos ND 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Methyl parathion ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Mevinphos ND *+ 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Naled ND 3.9 2.7 mg/Kg 03/04/26 12:39 03/17/26 22:14 1
Phorate ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Ronnel ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Eurofins Calscience

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4619
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique (Continued)
Client Sample ID: EKI-SB-4-5.5 Lab Sample ID: 570-269712-7 Date Collected: 03/01/26 12:11 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 1.9 0.14 mg/Kg 03/04/26 12:39 03/17/26 22:14 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Stirophos
Tokuthion ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Trichloronate ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/17/26 22:14 1 Tributylphosphate 85 20 - 158 03/04/26 12:39 03/17/26 22:14 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-5-6.0 Lab Sample ID: 570-269712-8 Date Collected: 03/01/26 12:42 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.49 0.36 mg/Kg 03/04/26 12:39 03/17/26 23:01 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Chlorpyrifos ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Coumaphos ND 0.49 0.19 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Demeton-o/s ND 0.99 0.27 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Diazinon ND 0.49 0.099 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Dichlorvos ND *+ 0.49 0.45 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Disulfoton ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Ethoprop ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Fensulfothion ND 0.49 0.25 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Fenthion ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Merphos ND 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Methyl parathion ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Mevinphos ND *+ 0.49 0.21 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Naled ND 3.9 2.7 mg/Kg 03/04/26 12:39 03/17/26 23:01 1
Phorate ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Ronnel ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Stirophos ND 2.0 0.14 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Tokuthion ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Trichloronate ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/17/26 23:01 1 Tributylphosphate 86 20 - 158 03/04/26 12:39 03/17/26 23:01 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-6-4.5 Lab Sample ID: 570-269712-9 Date Collected: 03/01/26 13:09 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.50 0.37 mg/Kg 03/04/26 12:39 03/17/26 23:49 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.50 0.25 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Chlorpyrifos ND 0.50 0.12 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Coumaphos ND 0.50 0.20 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Demeton-o/s ND 1.0 0.27 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Diazinon ND 0.50 0.10 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Dichlorvos ND *+ 0.50 0.45 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Disulfoton ND 0.50 0.12 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Ethoprop ND 0.50 0.11 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Fensulfothion ND 0.50 0.25 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Eurofins Calscience

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4620
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique (Continued)
Client Sample ID: EKI-SB-6-4.5 Lab Sample ID: 570-269712-9 Date Collected: 03/01/26 13:09 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 23:49 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Fenthion
Merphos ND 0.50 0.22 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Methyl parathion ND 0.50 0.25 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Mevinphos ND *+ 0.50 0.21 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Naled ND 4.0 2.8 mg/Kg 03/04/26 12:39 03/17/26 23:49 1
Phorate ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Ronnel ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Stirophos ND 2.0 0.14 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Tokuthion ND 0.50 0.13 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Trichloronate ND 0.50 0.12 mg/Kg 03/04/26 12:39 03/17/26 23:49 1 Tributylphosphate 88 20 - 158 03/04/26 12:39 03/17/26 23:49 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-DB-2-7.0 Lab Sample ID: 570-269712-10 Date Collected: 02/28/26 09:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.49 0.36 mg/Kg 03/04/26 12:39 03/18/26 00:36 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Chlorpyrifos ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Coumaphos ND 0.49 0.19 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Demeton-o/s ND 0.98 0.27 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Diazinon ND 0.49 0.098 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Dichlorvos ND *+ 0.49 0.44 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Disulfoton ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Ethoprop ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Fensulfothion ND 0.49 0.25 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Fenthion ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Merphos ND 0.49 0.21 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Methyl parathion ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Mevinphos ND *+ 0.49 0.21 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Naled ND 3.9 2.7 mg/Kg 03/04/26 12:39 03/18/26 00:36 1
Phorate ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Ronnel ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Stirophos ND 2.0 0.14 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Tokuthion ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Trichloronate ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/18/26 00:36 1 Tributylphosphate 92 20 - 158 03/04/26 12:39 03/18/26 00:36 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-DB-2-15.0 Lab Sample ID: 570-269712-11 Date Collected: 02/28/26 09:55 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.49 0.36 mg/Kg 03/04/26 12:39 03/18/26 01:24 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Chlorpyrifos ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique (Continued)
Client Sample ID: EKI-DB-2-15.0 Lab Sample ID: 570-269712-11 Date Collected: 02/28/26 09:55 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.49 0.19 mg/Kg 03/04/26 12:39 03/18/26 01:24 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Coumaphos
Demeton-o/s ND 0.97 0.27 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Diazinon ND 0.49 0.098 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Dichlorvos ND *+ 0.49 0.44 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Disulfoton ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Ethoprop ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Fensulfothion ND 0.49 0.25 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Fenthion ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Merphos ND 0.49 0.21 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Methyl parathion ND 0.49 0.24 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Mevinphos ND *+ 0.49 0.21 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Naled ND 3.9 2.7 mg/Kg 03/04/26 12:39 03/18/26 01:24 1
Phorate ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Ronnel ND 0.49 0.13 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Stirophos ND 1.9 0.14 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Tokuthion ND 0.49 0.12 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Trichloronate ND 0.49 0.11 mg/Kg 03/04/26 12:39 03/18/26 01:24 1 Tributylphosphate 91 20 - 158 03/04/26 12:39 03/18/26 01:24 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.61 0.45 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.61 0.30 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Chlorpyrifos ND 0.61 0.15 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Coumaphos ND 0.61 0.24 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Demeton-o/s ND 1.2 0.33 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Diazinon ND 0.61 0.12 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Dichlorvos ND *+ 0.61 0.55 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Disulfoton ND 0.61 0.15 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Ethoprop ND 0.61 0.14 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Fensulfothion ND 0.61 0.31 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Fenthion ND 0.61 0.16 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Merphos ND 0.61 0.26 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Methyl parathion ND 0.61 0.30 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Mevinphos ND *+ 0.61 0.26 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Naled ND 4.9 3.4 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Phorate ND 0.61 0.16 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Ronnel ND 0.61 0.16 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Stirophos ND 2.4 0.17 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Tokuthion ND 0.61 0.15 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Trichloronate ND 0.61 0.14 mg/Kg ☼ 03/04/26 12:39 03/18/26 03:46 1 Tributylphosphate 139 20 - 158 03/04/26 12:39 03/18/26 03:46 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4622
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique
Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.53 0.39 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Azinphos-methyl
Bolstar ND 0.53 0.26 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Chlorpyrifos ND 0.53 0.13 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Coumaphos ND 0.53 0.21 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Demeton-o/s ND 1.1 0.29 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Diazinon ND 0.53 0.11 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Dichlorvos ND *+ 0.53 0.48 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Disulfoton ND 0.53 0.13 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Ethoprop ND 0.53 0.12 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Fensulfothion ND 0.53 0.27 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Fenthion ND 0.53 0.14 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Merphos ND 0.53 0.23 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Methyl parathion ND 0.53 0.26 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Mevinphos ND *+ 0.53 0.23 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Naled ND 4.2 2.9 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Phorate ND 0.53 0.14 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Ronnel ND 0.53 0.14 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Stirophos ND 2.1 0.15 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Tokuthion ND 0.53 0.13 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Trichloronate ND 0.53 0.12 mg/Kg ☼ 03/04/26 12:39 03/18/26 04:33 1 Tributylphosphate 142 20 - 158 03/04/26 12:39 03/18/26 04:33 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4623
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8321B - Herbicides (LC/MS)
Client Sample ID: EKI-SB-1-5.5 Lab Sample ID: 570-269712-4 Date Collected: 02/28/26 15:05 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 10 3.6 ug/Kg 03/03/26 10:21 03/04/26 13:19 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 10 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:19 1 2,4-D ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 13:19 1
2,4-DB ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:19 1
Dalapon ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:19 1 Dicamba ND 10 4.3 ug/Kg 03/03/26 10:21 03/04/26 13:19 1 Dichlorprop ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:19 1 Dinoseb ND 12 4.4 ug/Kg 03/03/26 10:21 03/04/26 13:19 1 MCPA ND 12 3.3 ug/Kg 03/03/26 10:21 03/04/26 13:19 1
MCPP ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:19 1
2,4-Dichlorophenylacetic acid (Surr) 91 32 - 160 03/03/26 10:21 03/04/26 13:19 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-2-3.0 Lab Sample ID: 570-269712-5 Date Collected: 03/01/26 10:59 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 10 3.6 ug/Kg 03/03/26 10:21 03/04/26 13:27 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 10 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:27 1 2,4-D ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 13:27 1
2,4-DB ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:27 1
Dalapon ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:27 1 Dicamba ND 10 4.3 ug/Kg 03/03/26 10:21 03/04/26 13:27 1 Dichlorprop ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:27 1 Dinoseb ND 12 4.4 ug/Kg 03/03/26 10:21 03/04/26 13:27 1 MCPA ND 12 3.3 ug/Kg 03/03/26 10:21 03/04/26 13:27 1
MCPP ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:27 1
2,4-Dichlorophenylacetic acid (Surr) 90 32 - 160 03/03/26 10:21 03/04/26 13:27 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-3-5.5 Lab Sample ID: 570-269712-6 Date Collected: 03/01/26 11:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 10 3.6 ug/Kg 03/03/26 10:21 03/04/26 13:35 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 10 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:35 1 2,4-D ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 13:35 1
2,4-DB ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:35 1
Dalapon ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:35 1 Dicamba ND 10 4.3 ug/Kg 03/03/26 10:21 03/04/26 13:35 1 Dichlorprop ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:35 1 Dinoseb ND 12 4.4 ug/Kg 03/03/26 10:21 03/04/26 13:35 1 MCPA ND 12 3.3 ug/Kg 03/03/26 10:21 03/04/26 13:35 1
MCPP ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:35 1
2,4-Dichlorophenylacetic acid (Surr) 96 32 - 160 03/03/26 10:21 03/04/26 13:35 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4624
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8321B - Herbicides (LC/MS)
Client Sample ID: EKI-SB-4-5.5 Lab Sample ID: 570-269712-7 Date Collected: 03/01/26 12:11 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 9.8 3.5 ug/Kg 03/03/26 10:21 03/04/26 13:43 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 9.8 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:43 1 2,4-D ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 13:43 1
2,4-DB ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:43 1
Dalapon ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:43 1 Dicamba ND 9.8 4.2 ug/Kg 03/03/26 10:21 03/04/26 13:43 1 Dichlorprop ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 13:43 1 Dinoseb ND 12 4.3 ug/Kg 03/03/26 10:21 03/04/26 13:43 1 MCPA ND 12 3.3 ug/Kg 03/03/26 10:21 03/04/26 13:43 1
MCPP ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:43 1
2,4-Dichlorophenylacetic acid (Surr) 85 32 - 160 03/03/26 10:21 03/04/26 13:43 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-5-6.0 Lab Sample ID: 570-269712-8 Date Collected: 03/01/26 12:42 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 10 3.6 ug/Kg 03/03/26 10:21 03/04/26 13:51 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 10 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:51 1 2,4-D ND 13 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:51 1
2,4-DB ND 13 1.7 ug/Kg 03/03/26 10:21 03/04/26 13:51 1
Dalapon ND 13 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:51 1 Dicamba ND 10 4.3 ug/Kg 03/03/26 10:21 03/04/26 13:51 1 Dichlorprop ND 13 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:51 1 Dinoseb ND 13 4.4 ug/Kg 03/03/26 10:21 03/04/26 13:51 1 MCPA ND 13 3.4 ug/Kg 03/03/26 10:21 03/04/26 13:51 1
MCPP ND 13 3.3 ug/Kg 03/03/26 10:21 03/04/26 13:51 1
2,4-Dichlorophenylacetic acid (Surr) 92 32 - 160 03/03/26 10:21 03/04/26 13:51 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-6-4.5 Lab Sample ID: 570-269712-9 Date Collected: 03/01/26 13:09 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 10 3.6 ug/Kg 03/03/26 10:21 03/04/26 13:59 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 10 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:59 1 2,4-D ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 13:59 1
2,4-DB ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:59 1
Dalapon ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 13:59 1 Dicamba ND 10 4.3 ug/Kg 03/03/26 10:21 03/04/26 13:59 1 Dichlorprop ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:59 1 Dinoseb ND 12 4.4 ug/Kg 03/03/26 10:21 03/04/26 13:59 1 MCPA ND 12 3.3 ug/Kg 03/03/26 10:21 03/04/26 13:59 1
MCPP ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 13:59 1
2,4-Dichlorophenylacetic acid (Surr) 86 32 - 160 03/03/26 10:21 03/04/26 13:59 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4625
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8321B - Herbicides (LC/MS)
Client Sample ID: EKI-DB-2-7.0 Lab Sample ID: 570-269712-10 Date Collected: 02/28/26 09:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 10 3.6 ug/Kg 03/03/26 10:21 03/04/26 14:07 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 10 3.2 ug/Kg 03/03/26 10:21 03/04/26 14:07 1 2,4-D ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 14:07 1
2,4-DB ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 14:07 1
Dalapon ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 14:07 1 Dicamba ND 10 4.3 ug/Kg 03/03/26 10:21 03/04/26 14:07 1 Dichlorprop ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 14:07 1 Dinoseb ND *3 12 4.4 ug/Kg 03/03/26 10:21 03/04/26 14:07 1 MCPA ND 12 3.3 ug/Kg 03/03/26 10:21 03/04/26 14:07 1
MCPP ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 14:07 1
2,4-Dichlorophenylacetic acid (Surr) 91 32 - 160 03/03/26 10:21 03/04/26 14:07 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-DB-2-15.0 Lab Sample ID: 570-269712-11 Date Collected: 02/28/26 09:55 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 9.8 3.5 ug/Kg 03/03/26 10:21 03/04/26 14:15 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 9.8 3.2 ug/Kg 03/03/26 10:21 03/04/26 14:15 1 2,4-D ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 14:15 1
2,4-DB ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 14:15 1
Dalapon ND 12 1.6 ug/Kg 03/03/26 10:21 03/04/26 14:15 1 Dicamba ND 9.8 4.2 ug/Kg 03/03/26 10:21 03/04/26 14:15 1 Dichlorprop ND 12 3.1 ug/Kg 03/03/26 10:21 03/04/26 14:15 1 Dinoseb ND 12 4.3 ug/Kg 03/03/26 10:21 03/04/26 14:15 1 MCPA ND 12 3.3 ug/Kg 03/03/26 10:21 03/04/26 14:15 1
MCPP ND 12 3.2 ug/Kg 03/03/26 10:21 03/04/26 14:15 1
2,4-Dichlorophenylacetic acid (Surr) 90 32 - 160 03/03/26 10:21 03/04/26 14:15 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 12 4.5 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 12 4.0 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1 2,4-D ND 16 3.9 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1 2,4-DB ND 16 2.1 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1 Dalapon ND 16 2.0 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1 Dicamba ND 12 5.4 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1 Dichlorprop ND 16 4.0 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1 Dinoseb ND 16 5.5 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1 MCPA ND 16 4.2 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1
MCPP ND 16 4.1 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:31 1
2,4-Dichlorophenylacetic acid (Surr) 97 32 - 160 03/03/26 10:21 03/04/26 14:31 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4626
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 8321B - Herbicides (LC/MS)
Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 11 3.8 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-T
2,4,5-TP (Silvex) ND 11 3.4 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1 2,4-D ND 13 3.4 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1 2,4-DB ND 13 1.8 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1 Dalapon ND 13 1.7 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1 Dicamba ND 11 4.6 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1 Dichlorprop ND 13 3.4 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1 Dinoseb ND 13 4.7 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1 MCPA ND 13 3.6 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1
MCPP ND 13 3.5 ug/Kg ☼ 03/03/26 10:21 03/04/26 14:39 1
2,4-Dichlorophenylacetic acid (Surr) 94 32 - 160 03/03/26 10:21 03/04/26 14:39 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4627
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS)
Client Sample ID: EKI-SB-10-0.5 Lab Sample ID: 570-269712-1 Date Collected: 03/01/26 13:21 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.509 0.297 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 2.56 0.509 0.226 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Barium 146 0.509 0.333 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Beryllium 0.283 J 0.509 0.223 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Cadmium 0.195 J 0.509 0.170 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Chromium 18.4 0.509 0.315 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Cobalt 8.37 0.509 0.190 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Copper 26.4 0.509 0.203 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Lead 17.8 0.509 0.192 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Molybdenum 0.514 0.509 0.284 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Nickel 14.9 0.509 0.287 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Selenium 1.01 0.509 0.435 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Silver ND 1.02 0.531 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Thallium ND 0.509 0.159 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Vanadium 41.8 0.509 0.316 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Zinc 83.2 5.09 2.13 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:19 5 Client Sample ID: EKI-SB-10-2.0 Lab Sample ID: 570-269712-2 Date Collected: 03/01/26 13:24 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.527 0.307 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 2.35 0.527 0.234 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Barium 125 0.527 0.345 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Beryllium 0.282 J 0.527 0.231 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Cadmium ND 0.527 0.176 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Chromium 17.9 0.527 0.327 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Cobalt 7.78 0.527 0.196 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Copper 19.9 0.527 0.210 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Lead 24.4 0.527 0.199 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Molybdenum 0.636 0.527 0.294 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Nickel 12.1 0.527 0.298 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Selenium 1.01 0.527 0.451 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Silver ND 1.05 0.550 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Thallium ND 0.527 0.164 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Vanadium 39.3 0.527 0.327 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Zinc 67.1 5.27 2.20 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:22 5 Client Sample ID: EKI-SB-10-5.0 Lab Sample ID: 570-269712-3 Date Collected: 03/01/26 13:28 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.561 0.328 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 1.08 0.561 0.250 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Barium 94.0 0.561 0.367 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Beryllium ND 0.561 0.246 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Cadmium ND 0.561 0.188 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Chromium 11.5 0.561 0.348 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Cobalt 6.57 0.561 0.209 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Copper 11.4 0.561 0.224 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS) (Continued)
Client Sample ID: EKI-SB-10-5.0 Lab Sample ID: 570-269712-3 Date Collected: 03/01/26 13:28 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

2.46 0.561 0.212 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Lead
Molybdenum ND 0.561 0.313 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Nickel 8.36 0.561 0.317 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Selenium 0.668 0.561 0.480 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Silver ND 1.12 0.586 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Thallium ND 0.561 0.175 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Vanadium 30.1 0.561 0.349 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Zinc 41.0 5.61 2.35 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:25 5 Client Sample ID: EKI-SB-1-5.5 Lab Sample ID: 570-269712-4 Date Collected: 02/28/26 15:05 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.538 0.314 mg/Kg 03/05/26 10:16 03/07/26 00:28 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 1.63 0.538 0.239 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Barium 115 0.538 0.352 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Beryllium ND 0.538 0.236 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Cadmium ND 0.538 0.180 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Chromium 16.3 0.538 0.334 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Cobalt 6.91 0.538 0.201 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Copper 15.6 0.538 0.215 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Lead 2.90 0.538 0.203 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Molybdenum 0.351 J 0.538 0.301 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Nickel 10.9 0.538 0.304 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Selenium 0.911 0.538 0.460 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Silver ND 1.08 0.562 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Thallium ND 0.538 0.168 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Vanadium 39.2 0.538 0.335 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Zinc 46.4 5.38 2.25 mg/Kg 03/05/26 10:16 03/07/26 00:28 5 Client Sample ID: EKI-SB-2-3.0 Lab Sample ID: 570-269712-5 Date Collected: 03/01/26 10:59 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.430 0.251 mg/Kg 03/05/26 10:16 03/07/26 00:30 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 2.91 0.430 0.192 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Barium 159 0.430 0.282 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Beryllium 0.279 J 0.430 0.189 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Cadmium ND 0.430 0.144 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Chromium 19.8 0.430 0.267 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Cobalt 9.07 0.430 0.161 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Copper 21.6 0.430 0.172 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Lead 2.76 0.430 0.162 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Molybdenum 0.303 J 0.430 0.240 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Nickel 14.7 0.430 0.243 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Selenium 1.07 0.430 0.368 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Silver ND 0.861 0.449 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Thallium 0.153 J 0.430 0.134 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Vanadium 44.5 0.430 0.268 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Zinc 55.1 4.30 1.80 mg/Kg 03/05/26 10:16 03/07/26 00:30 5 Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS)
Client Sample ID: EKI-SB-3-5.5 Lab Sample ID: 570-269712-6 Date Collected: 03/01/26 11:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.507 0.296 mg/Kg 03/05/26 10:16 03/07/26 00:42 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 0.818 0.507 0.226 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Barium 86.9 0.507 0.332 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Beryllium ND 0.507 0.222 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Cadmium ND 0.507 0.170 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Chromium 9.28 0.507 0.314 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Cobalt 5.55 0.507 0.189 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Copper 9.65 0.507 0.202 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Lead 1.66 0.507 0.191 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Molybdenum ND 0.507 0.283 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Nickel 6.42 0.507 0.286 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Selenium 0.545 0.507 0.434 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Silver ND 1.01 0.529 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Thallium ND 0.507 0.158 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Vanadium 26.6 0.507 0.315 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Zinc 30.7 5.07 2.12 mg/Kg 03/05/26 10:16 03/07/26 00:42 5 Client Sample ID: EKI-SB-4-5.5 Lab Sample ID: 570-269712-7 Date Collected: 03/01/26 12:11 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.486 0.283 mg/Kg 03/05/26 10:16 03/07/26 00:45 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 3.76 0.486 0.216 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Barium 192 0.486 0.318 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Beryllium 0.403 J 0.486 0.213 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Cadmium ND 0.486 0.163 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Chromium 24.4 0.486 0.301 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Cobalt 11.6 0.486 0.181 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Copper 29.2 0.486 0.194 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Lead 3.16 0.486 0.183 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Molybdenum 0.499 0.486 0.271 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Nickel 18.5 0.486 0.274 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Selenium 1.32 0.486 0.415 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Silver ND 0.971 0.507 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Thallium 0.182 J 0.486 0.152 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Vanadium 55.4 0.486 0.302 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Zinc 62.4 4.86 2.03 mg/Kg 03/05/26 10:16 03/07/26 00:45 5 Client Sample ID: EKI-SB-5-6.0 Lab Sample ID: 570-269712-8 Date Collected: 03/01/26 12:42 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.556 0.325 mg/Kg 03/05/26 10:16 03/07/26 00:47 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 2.00 0.556 0.248 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Barium 190 0.556 0.364 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Beryllium 0.269 J 0.556 0.244 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Cadmium ND 0.556 0.186 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Chromium 19.3 0.556 0.345 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Cobalt 11.0 0.556 0.208 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Copper 21.8 0.556 0.222 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS) (Continued)
Client Sample ID: EKI-SB-5-6.0 Lab Sample ID: 570-269712-8 Date Collected: 03/01/26 12:42 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

2.65 0.556 0.210 mg/Kg 03/05/26 10:16 03/07/26 00:47 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Lead
Molybdenum 0.944 0.556 0.311 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Nickel 14.8 0.556 0.314 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Selenium 1.02 0.556 0.476 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Silver ND 1.11 0.581 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Thallium ND 0.556 0.174 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Vanadium 44.0 0.556 0.346 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Zinc 53.2 5.56 2.33 mg/Kg 03/05/26 10:16 03/07/26 00:47 5 Client Sample ID: EKI-SB-6-4.5 Lab Sample ID: 570-269712-9 Date Collected: 03/01/26 13:09 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.536 0.313 mg/Kg 03/05/26 10:16 03/07/26 00:50 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 3.20 0.536 0.239 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Barium 171 0.536 0.351 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Beryllium 0.386 J 0.536 0.235 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Cadmium ND 0.536 0.180 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Chromium 23.1 0.536 0.333 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Cobalt 10.6 0.536 0.200 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Copper 25.2 0.536 0.214 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Lead 2.88 0.536 0.202 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Molybdenum 0.576 0.536 0.300 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Nickel 17.1 0.536 0.303 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Selenium 1.24 0.536 0.459 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Silver ND 1.07 0.560 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Thallium 0.184 J 0.536 0.167 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Vanadium 51.2 0.536 0.333 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Zinc 57.6 5.36 2.24 mg/Kg 03/05/26 10:16 03/07/26 00:50 5 Client Sample ID: EKI-DB-2-7.0 Lab Sample ID: 570-269712-10 Date Collected: 02/28/26 09:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.462 0.270 mg/Kg 03/05/26 10:16 03/07/26 00:53 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 1.85 0.462 0.206 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Barium 44.5 0.462 0.302 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Beryllium ND 0.462 0.202 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Cadmium 1.15 0.462 0.155 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Chromium 65.2 0.462 0.286 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Cobalt 2.86 0.462 0.172 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Copper 10.2 0.462 0.184 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Lead 4.52 0.462 0.174 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Molybdenum ND 0.462 0.258 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Nickel 3.95 0.462 0.261 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Selenium ND 0.462 0.395 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Silver 1.21 0.924 0.482 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Thallium ND 0.462 0.144 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Vanadium 10.5 0.462 0.287 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Zinc 41.0 4.62 1.93 mg/Kg 03/05/26 10:16 03/07/26 00:53 5 Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS)
Client Sample ID: EKI-DB-2-15.0 Lab Sample ID: 570-269712-11 Date Collected: 02/28/26 09:55 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.508 0.297 mg/Kg 03/05/26 10:16 03/07/26 00:56 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 3.89 0.508 0.226 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Barium 233 0.508 0.333 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Beryllium 0.439 J 0.508 0.223 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Cadmium ND 0.508 0.170 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Chromium 28.4 0.508 0.315 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Cobalt 12.7 0.508 0.190 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Copper 32.1 0.508 0.203 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Lead 3.47 0.508 0.192 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Molybdenum 0.415 J 0.508 0.284 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Nickel 21.1 0.508 0.287 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Selenium 1.48 0.508 0.435 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Silver ND 1.02 0.531 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Thallium 0.219 J 0.508 0.159 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Vanadium 61.9 0.508 0.316 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Zinc 70.5 5.08 2.12 mg/Kg 03/05/26 10:16 03/07/26 00:56 5 Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.585 0.341 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 2.01 0.585 0.260 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Barium 151 0.585 0.383 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Beryllium ND 0.585 0.256 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Cadmium ND 0.585 0.196 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Chromium 20.0 0.585 0.363 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Cobalt 9.43 0.585 0.218 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Copper 18.9 0.585 0.233 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Lead 3.40 0.585 0.220 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Molybdenum 0.334 J 0.585 0.327 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Nickel 14.1 0.585 0.330 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Selenium 0.969 0.585 0.500 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Silver ND 1.17 0.611 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Thallium ND 0.585 0.182 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Vanadium 46.4 0.585 0.364 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Zinc 55.5 5.85 2.44 mg/Kg ☼ 03/05/26 10:16 03/07/26 00:58 5 Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

1.45 F1 0.589 0.344 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 3.16 0.589 0.262 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Barium 92.2 0.589 0.386 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Beryllium 0.441 J 0.589 0.258 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Cadmium ND 0.589 0.197 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Chromium 15.8 0.589 0.365 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Cobalt 6.54 0.589 0.220 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Copper 15.5 0.589 0.235 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS) (Continued)
Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

1.39 0.589 0.222 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Lead
Molybdenum 0.968 0.589 0.329 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Nickel 11.1 0.589 0.333 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Selenium 1.01 0.589 0.504 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Silver ND 1.18 0.615 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Thallium 0.361 J F1 0.589 0.184 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Vanadium 42.3 0.589 0.366 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Zinc 31.4 5.89 2.46 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:39 5 Client Sample ID: EKI-SB-9-8.5 Lab Sample ID: 570-269712-16 Date Collected: 03/01/26 09:25 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.512 0.299 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 3.30 0.512 0.228 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Barium 217 0.512 0.335 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Beryllium 0.598 0.512 0.224 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Cadmium ND 0.512 0.171 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Chromium 27.3 0.512 0.318 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Cobalt 12.0 0.512 0.191 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Copper 30.7 0.512 0.204 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Lead 4.60 0.512 0.193 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Molybdenum 0.481 J 0.512 0.286 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Nickel 19.2 0.512 0.289 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Selenium 1.42 0.512 0.438 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Silver ND 1.02 0.535 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Thallium 0.259 J 0.512 0.160 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Vanadium 56.7 0.512 0.318 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Zinc 77.0 5.12 2.14 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:53 5 Client Sample ID: EKI-SB-7-2.5 Lab Sample ID: 570-269712-17 Date Collected: 03/01/26 09:41 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.593 0.346 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 3.10 0.593 0.264 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Barium 167 0.593 0.388 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Beryllium 0.418 J 0.593 0.260 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Cadmium ND 0.593 0.198 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Chromium 23.5 0.593 0.368 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Cobalt 10.2 0.593 0.221 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Copper 24.5 0.593 0.236 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Lead 5.13 0.593 0.223 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Molybdenum 0.477 J 0.593 0.331 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Nickel 16.8 0.593 0.335 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Selenium 1.12 0.593 0.507 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Silver ND 1.19 0.619 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Thallium 0.185 J 0.593 0.185 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Vanadium 53.1 0.593 0.369 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Zinc 59.4 5.93 2.48 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:55 5 Eurofins Calscience

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4633
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS)
Client Sample ID: EKI-SB-8-1.5 Lab Sample ID: 570-269712-18 Date Collected: 03/01/26 09:38 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.543 0.317 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 4.21 0.543 0.242 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Barium 227 0.543 0.355 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Beryllium 0.474 J 0.543 0.238 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Cadmium ND 0.543 0.182 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Chromium 29.8 0.543 0.336 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Cobalt 13.7 0.543 0.202 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Copper 36.3 0.543 0.216 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Lead 5.32 0.543 0.205 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Molybdenum 0.722 0.543 0.303 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Nickel 22.6 0.543 0.307 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Selenium 1.44 0.543 0.464 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Silver ND 1.09 0.567 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Thallium 0.258 J 0.543 0.169 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Vanadium 64.3 0.543 0.337 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Zinc 81.3 5.43 2.27 mg/Kg ☼ 03/05/26 10:27 03/07/26 02:14 5 Eurofins Calscience

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4634
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 7471B - Mercury (CVAA)
Client Sample ID: EKI-SB-10-0.5 Lab Sample ID: 570-269712-1 Date Collected: 03/01/26 13:21 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0371 J 0.0940 0.0227 mg/Kg ☼ 03/04/26 10:36 03/05/26 10:45 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-10-2.0 Lab Sample ID: 570-269712-2 Date Collected: 03/01/26 13:24 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0363 J 0.0854 0.0206 mg/Kg ☼ 03/04/26 10:36 03/05/26 10:50 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-10-5.0 Lab Sample ID: 570-269712-3 Date Collected: 03/01/26 13:28 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0274 J 0.0833 0.0201 mg/Kg ☼ 03/04/26 10:36 03/05/26 10:52 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-1-5.5 Lab Sample ID: 570-269712-4 Date Collected: 02/28/26 15:05 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.147 0.0817 0.0198 mg/Kg 03/04/26 10:36 03/05/26 10:54 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-2-3.0 Lab Sample ID: 570-269712-5 Date Collected: 03/01/26 10:59 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0366 J 0.0786 0.0190 mg/Kg 03/04/26 10:36 03/05/26 10:56 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-3-5.5 Lab Sample ID: 570-269712-6 Date Collected: 03/01/26 11:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0329 J 0.0850 0.0206 mg/Kg 03/04/26 10:36 03/05/26 11:02 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-4-5.5 Lab Sample ID: 570-269712-7 Date Collected: 03/01/26 12:11 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0330 J 0.0850 0.0206 mg/Kg 03/04/26 10:36 03/05/26 11:04 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-5-6.0 Lab Sample ID: 570-269712-8 Date Collected: 03/01/26 12:42 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0386 J 0.0887 0.0214 mg/Kg 03/04/26 10:36 03/05/26 11:06 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-6-4.5 Lab Sample ID: 570-269712-9 Date Collected: 03/01/26 13:09 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0210 J 0.0817 0.0198 mg/Kg 03/04/26 10:36 03/05/26 11:08 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Eurofins Calscience

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4635
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: SW846 7471B - Mercury (CVAA)
Client Sample ID: EKI-DB-2-7.0 Lab Sample ID: 570-269712-10 Date Collected: 02/28/26 09:40 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0458 J 0.0801 0.0194 mg/Kg 03/04/26 10:36 03/05/26 11:10 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-DB-2-15.0 Lab Sample ID: 570-269712-11 Date Collected: 02/28/26 09:55 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0372 J 0.0817 0.0198 mg/Kg 03/04/26 10:36 03/05/26 11:11 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0640 J 0.0981 0.0237 mg/Kg ☼ 03/04/26 10:36 03/05/26 11:17 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 0.0857 0.0207 mg/Kg ☼ 03/04/26 10:36 03/05/26 11:19 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-9-8.5 Lab Sample ID: 570-269712-16 Date Collected: 03/01/26 09:25 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0367 J 0.0979 0.0237 mg/Kg ☼ 03/04/26 10:36 03/05/26 12:19 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-7-2.5 Lab Sample ID: 570-269712-17 Date Collected: 03/01/26 09:41 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0420 J 0.0867 0.0210 mg/Kg ☼ 03/04/26 10:36 03/05/26 12:21 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Client Sample ID: EKI-SB-8-1.5 Lab Sample ID: 570-269712-18 Date Collected: 03/01/26 09:38 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.0324 J 0.0874 0.0211 mg/Kg ☼ 03/04/26 10:36 03/05/26 12:22 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Mercury
Eurofins Calscience

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
General Chemistry
Client Sample ID: EKI-SB-10-0.5 Lab Sample ID: 570-269712-1 Date Collected: 03/01/26 13:21 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

7.62 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-SB-10-2.0 Lab Sample ID: 570-269712-2 Date Collected: 03/01/26 13:24 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

4.30 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-SB-10-5.0 Lab Sample ID: 570-269712-3 Date Collected: 03/01/26 13:28 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

3.75 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-UST-1-8.0 Lab Sample ID: 570-269712-12 Date Collected: 02/28/26 11:00 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

8.33 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-UST-1-15.0 Lab Sample ID: 570-269712-13 Date Collected: 02/28/26 11:10 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

15.4 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

19.9 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

8.30 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-SB-9-8.5 Lab Sample ID: 570-269712-16 Date Collected: 03/01/26 09:25 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

14.9 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Client Sample ID: EKI-SB-7-2.5 Lab Sample ID: 570-269712-17 Date Collected: 03/01/26 09:41 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

9.32 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Eurofins Calscience

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4637
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
General Chemistry
Client Sample ID: EKI-SB-8-1.5 Lab Sample ID: 570-269712-18 Date Collected: 03/01/26 09:38 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

8.36 0.100 0.100 % 03/03/26 18:13 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Percent Moisture (SM 2540G)
Eurofins Calscience

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4638
Surrogate Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (32-179) (80-120) (58-147) (80-120)

DCA BFB DBFM TOL
570-269712-1 108 102 101 100
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-10-0.5
570-269712-2 EKI-SB-10-2.0 109 100 103 100
570-269712-3 EKI-SB-10-5.0 114 102 106 101
570-269712-12 EKI-UST-1-8.0 113 100 105 101
570-269712-13 EKI-UST-1-15.0 111 99 104 99
570-269712-16 EKI-SB-9-8.5 114 101 104 101
570-269712-17 EKI-SB-7-2.5 115 102 104 100
570-269712-18 EKI-SB-8-1.5 114 100 106 101
LCS 570-705634/3 Lab Control Sample 103 100 102 101
LCSD 570-705634/4 Lab Control Sample Dup 103 100 102 100 MB 570-705634/5 Method Blank 101 101 101 100
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
Method: 8270C - Semivolatile Organic Compounds (GC/MS)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (20-135) (28-110) (20-135) (22-116) (27-118) (20-127) TBP FBP 2FP NBZ TPHd14 PHL6
570-269712-1 74 62 64 76 61 64
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-10-0.5
570-269712-1 MS EKI-SB-10-0.5 83 66 78 78 70 77
570-269712-1 MSD EKI-SB-10-0.5 97 77 89 89 84 88
570-269712-2 EKI-SB-10-2.0 93 71 78 88 73 78
570-269712-3 EKI-SB-10-5.0 90 70 80 91 72 80
570-269712-4 EKI-SB-1-5.5 88 70 75 87 69 77
570-269712-5 EKI-SB-2-3.0 81 71 72 91 71 76
570-269712-6 EKI-SB-3-5.5 99 82 93 103 82 94
570-269712-10 EKI-DB-2-7.0 93 74 83 94 75 82
570-269712-11 EKI-DB-2-15.0 81 68 71 86 68 72
570-269712-12 EKI-UST-1-8.0 75 70 61 73 69 58
570-269712-13 EKI-UST-1-15.0 69 86 76 84 92 74
570-269712-14 EKI-SB-1-7.0 84 69 69 88 67 74
570-269712-15 EKI-SB-1-15.0 31 53 31 63 62 24
570-269712-16 EKI-SB-9-8.5 66 80 78 81 86 78
570-269712-17 EKI-SB-7-2.5 56 55 40 56 66 31
570-269712-18 EKI-SB-8-1.5 75 78 80 80 81 76
LCS 570-704242/2-A Lab Control Sample 99 77 91 87 82 89 LCS 570-708773/2-A Lab Control Sample 92 86 94 81 94 92 LCSD 570-704242/3-A Lab Control Sample Dup 98 77 90 89 84 89 LCSD 570-708773/3-A Lab Control Sample Dup 88 82 93 78 89 90 MB 570-704242/1-A Method Blank 86 72 78 91 71 79
MB 570-708773/1-A Method Blank 90 101 96 97 99 92
Surrogate Legend
TBP = 2,4,6-Tribromophenol (Surr)
FBP = 2-Fluorobiphenyl (Surr)
Eurofins Calscience

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4639
Surrogate Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
2FP = 2-Fluorophenol (Surr)
NBZ = Nitrobenzene-d5 (Surr)
TPHd14 = p-Terphenyl-d14 (Surr)
PHL6 = Phenol-d6 (Surr)
Method: 8015C - Gasoline Range Organics (GRO) (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (42-126)
BFB1
570-269712-1 100
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-10-0.5
570-269712-2 EKI-SB-10-2.0 98
570-269712-3 EKI-SB-10-5.0 96
570-269712-3 MS EKI-SB-10-5.0 91
570-269712-3 MSD EKI-SB-10-5.0 73
570-269712-10 EKI-DB-2-7.0 96
570-269712-11 EKI-DB-2-15.0 85
570-269712-12 EKI-UST-1-8.0 99
570-269712-13 EKI-UST-1-15.0 97
570-269712-14 EKI-SB-1-7.0 95
570-269712-15 EKI-SB-1-15.0 96
570-269712-16 EKI-SB-9-8.5 99
570-269712-17 EKI-SB-7-2.5 98
570-269712-18 EKI-SB-8-1.5 96
LCS 570-705503/1-A Lab Control Sample 96
LCS 570-705503/1-A Lab Control Sample 98
LCS 570-705961/1-A Lab Control Sample 78
LCSD 570-705961/2-A Lab Control Sample Dup 88
MB 570-705503/3-A Method Blank 93
MB 570-705961/3-A Method Blank 87
Surrogate Legend
BFB = 4-Bromofluorobenzene (Surr)
Method: 8015C - Diesel Range Organics (DRO) (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (29-160)
OTCSN1
570-269712-1 79
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-10-0.5
570-269712-1 MS EKI-SB-10-0.5 79
570-269712-1 MSD EKI-SB-10-0.5 85
570-269712-2 EKI-SB-10-2.0 84
570-269712-3 EKI-SB-10-5.0 83
570-269712-10 EKI-DB-2-7.0 81
570-269712-11 EKI-DB-2-15.0 82
570-269712-12 EKI-UST-1-8.0 79
570-269712-13 EKI-UST-1-15.0 80
570-269712-14 EKI-SB-1-7.0 80
570-269712-15 EKI-SB-1-15.0 81
570-269712-16 EKI-SB-9-8.5 76
570-269712-17 EKI-SB-7-2.5 79
570-269712-18 EKI-SB-8-1.5 79
LCS 570-704828/2-A Lab Control Sample 84
LCSD 570-704828/3-A Lab Control Sample Dup 78
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Surrogate Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8015C - Diesel Range Organics (DRO) (GC) (Continued) Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (29-160)
OTCSN1
MB 570-704828/1-A 79
Percent Surrogate Recovery (Acceptance Limits)
Method Blank
Surrogate Legend
OTCSN = n-Octacosane (Surr)
Method: 8081B - Organochlorine Pesticides (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (38-148) (37-151)
TCX1 DCB1
570-269712-10 73 82
Percent Surrogate Recovery (Acceptance Limits)
EKI-DB-2-7.0
570-269712-14 EKI-SB-1-7.0 69 76
MB 570-704150/1-A Method Blank 96 109
MB 570-704155/1-A Method Blank 86 93
Surrogate Legend
TCX = Tetrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Method: 8081B - Organochlorine Pesticides (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (38-148) (37-151)
TCX1 DCB2
570-269712-7 71 78
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-4-5.5
570-269712-8 EKI-SB-5-6.0 67 61
570-269712-11 EKI-DB-2-15.0 75 76
570-269712-15 EKI-SB-1-15.0 83 84
LCS 570-704150/2-A Lab Control Sample 84 93
LCS 570-704155/2-A Lab Control Sample 94 103
LCSD 570-704150/3-A Lab Control Sample Dup 75 78
LCSD 570-704155/3-A Lab Control Sample Dup 95 102
Surrogate Legend
TCX = Tetrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Method: 8081B - Organochlorine Pesticides (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (38-148) (37-151)
TCX2 DCB1
570-269712-4 67 77
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-1-5.5
Surrogate Legend
TCX = Tetrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Eurofins Calscience

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Surrogate Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8081B - Organochlorine Pesticides (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (38-148) (37-151)
TCX2 DCB2
570-269712-5 73 78
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-2-3.0
570-269712-6 EKI-SB-3-5.5 63 64
570-269712-9 EKI-SB-6-4.5 77 85
Surrogate Legend
TCX = Tetrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Method: 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (20-158)
TBPH2
570-269712-4 80
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-1-5.5
570-269712-4 MS EKI-SB-1-5.5 84
570-269712-4 MSD EKI-SB-1-5.5 90
570-269712-5 EKI-SB-2-3.0 86
570-269712-6 EKI-SB-3-5.5 84
570-269712-7 EKI-SB-4-5.5 85
570-269712-8 EKI-SB-5-6.0 86
570-269712-9 EKI-SB-6-4.5 88
570-269712-10 EKI-DB-2-7.0 92
570-269712-11 EKI-DB-2-15.0 91
570-269712-14 EKI-SB-1-7.0 139
570-269712-15 EKI-SB-1-15.0 142
LCS 570-704317/2-A Lab Control Sample 111
LCSD 570-704317/3-A Lab Control Sample Dup 110
MB 570-704317/1-A Method Blank 100
Surrogate Legend
TBPH = Tributylphosphate
Method: 8321B - Herbicides (LC/MS)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (32-160)
DCPAA
570-269712-4 91
Percent Surrogate Recovery (Acceptance Limits)
EKI-SB-1-5.5
570-269712-4 MS EKI-SB-1-5.5 107
570-269712-4 MSD EKI-SB-1-5.5 107
570-269712-5 EKI-SB-2-3.0 90
570-269712-6 EKI-SB-3-5.5 96
570-269712-7 EKI-SB-4-5.5 85
570-269712-8 EKI-SB-5-6.0 92
570-269712-9 EKI-SB-6-4.5 86
570-269712-10 EKI-DB-2-7.0 91
570-269712-11 EKI-DB-2-15.0 90
570-269712-14 EKI-SB-1-7.0 97
570-269712-15 EKI-SB-1-15.0 94
Eurofins Calscience

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Surrogate Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8321B - Herbicides (LC/MS) (Continued)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (32-160)
DCPAA
LCS 570-703587/2-A 117
Percent Surrogate Recovery (Acceptance Limits)
Lab Control Sample
LCSD 570-703587/3-A Lab Control Sample Dup 114
MB 570-703587/1-A Method Blank 89
Surrogate Legend
DCPAA = 2,4-Dichlorophenylacetic acid (Surr)
Eurofins Calscience

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4643
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: MB 570-705634/5 Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
RL MDL
1,1,1,2-Tetrachloroethane ND 1.0 0.29 ug/Kg 03/06/26 18:11 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 0.23 ug/Kg 03/06/26 18:11 1 1,1,2,2-Tetrachloroethane ND 2.0 0.25 ug/Kg 03/06/26 18:11 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 0.46 ug/Kg 03/06/26 18:11 1 1,1,2-Trichloroethane ND 1.0 0.46 ug/Kg 03/06/26 18:11 1 1,1-Dichloroethane ND 1.0 0.28 ug/Kg 03/06/26 18:11 1
1,1-Dichloroethene ND 1.0 0.27 ug/Kg 03/06/26 18:11 1
1,1-Dichloropropene ND 2.0 0.39 ug/Kg 03/06/26 18:11 1
1,2,3-Trichlorobenzene ND 2.0 0.38 ug/Kg 03/06/26 18:11 1 1,2,3-Trichloropropane ND 2.0 0.42 ug/Kg 03/06/26 18:11 1 1,2,4-Trichlorobenzene ND 2.0 0.41 ug/Kg 03/06/26 18:11 1 Di-isopropyl ether (DIPE) ND 1.0 0.23 ug/Kg 03/06/26 18:11 1 1,2,4-Trimethylbenzene ND 2.0 0.28 ug/Kg 03/06/26 18:11 1 Ethanol ND 250 92 ug/Kg 03/06/26 18:11 1
1,2-Dibromo-3-Chloropropane ND 10 3.3 ug/Kg 03/06/26 18:11 1 Ethyl-t-butyl ether (ETBE) ND 1.0 0.24 ug/Kg 03/06/26 18:11 1 1,2-Dibromoethane ND 1.0 0.21 ug/Kg 03/06/26 18:11 1
Tert-amyl-methyl ether (TAME) ND 1.0 0.19 ug/Kg 03/06/26 18:11 1 1,2-Dichlorobenzene ND 1.0 0.25 ug/Kg 03/06/26 18:11 1
tert-Butyl alcohol (TBA) ND 20 3.1 ug/Kg 03/06/26 18:11 1 1,2-Dichloroethane ND 1.0 0.28 ug/Kg 03/06/26 18:11 1
1,2-Dichloropropane ND 1.0 0.28 ug/Kg 03/06/26 18:11 1
1,3,5-Trimethylbenzene ND 2.0 0.27 ug/Kg 03/06/26 18:11 1 1,3-Dichlorobenzene ND 1.0 0.25 ug/Kg 03/06/26 18:11 1
1,3-Dichloropropane ND 1.0 0.30 ug/Kg 03/06/26 18:11 1
1,4-Dichlorobenzene ND 1.0 0.31 ug/Kg 03/06/26 18:11 1
2,2-Dichloropropane ND 5.0 0.27 ug/Kg 03/06/26 18:11 1
2-Butanone (MEK) ND 20 4.5 ug/Kg 03/06/26 18:11 1
2-Chlorotoluene ND 1.0 0.25 ug/Kg 03/06/26 18:11 1
2-Hexanone ND 20 3.1 ug/Kg 03/06/26 18:11 1
4-Chlorotoluene ND 1.0 0.24 ug/Kg 03/06/26 18:11 1
4-Methyl-2-pentanone (MIBK) ND 20 2.9 ug/Kg 03/06/26 18:11 1 Acetone ND 20 9.8 ug/Kg 03/06/26 18:11 1
Benzene ND 1.0 0.26 ug/Kg 03/06/26 18:11 1
Bromobenzene ND 1.0 0.21 ug/Kg 03/06/26 18:11 1
Bromochloromethane ND 2.0 0.44 ug/Kg 03/06/26 18:11 1
Bromodichloromethane ND 1.0 0.33 ug/Kg 03/06/26 18:11 1 Bromoform ND 5.0 1.3 ug/Kg 03/06/26 18:11 1
Bromomethane ND 20 6.6 ug/Kg 03/06/26 18:11 1
cis-1,2-Dichloroethene ND 1.0 0.34 ug/Kg 03/06/26 18:11 1 cis-1,3-Dichloropropene ND 1.0 0.35 ug/Kg 03/06/26 18:11 1 Carbon disulfide ND 10 0.40 ug/Kg 03/06/26 18:11 1
Carbon tetrachloride ND 1.0 0.30 ug/Kg 03/06/26 18:11 1 Chlorobenzene ND 1.0 0.27 ug/Kg 03/06/26 18:11 1
Chloroethane ND 2.0 0.32 ug/Kg 03/06/26 18:11 1
Chloroform ND 1.0 0.59 ug/Kg 03/06/26 18:11 1
Chloromethane ND 20 1.5 ug/Kg 03/06/26 18:11 1
Dibromochloromethane ND 2.0 0.27 ug/Kg 03/06/26 18:11 1 Eurofins Calscience

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4644
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-705634/5 Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
RL MDL
Dibromomethane ND 1.0 0.31 ug/Kg 03/06/26 18:11 1
MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Dichlorodifluoromethane ND 2.0 0.45 ug/Kg 03/06/26 18:11 1 Ethylbenzene ND 1.0 0.21 ug/Kg 03/06/26 18:11 1
Isopropylbenzene ND 1.0 0.28 ug/Kg 03/06/26 18:11 1
Methylene Chloride 3.560 J 10 3.1 ug/Kg 03/06/26 18:11 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 0.19 ug/Kg 03/06/26 18:11 1 Naphthalene ND 10 3.9 ug/Kg 03/06/26 18:11 1
n-Butylbenzene ND 1.0 0.21 ug/Kg 03/06/26 18:11 1
N-Propylbenzene ND 2.0 0.26 ug/Kg 03/06/26 18:11 1
o-Xylene ND 1.0 0.26 ug/Kg 03/06/26 18:11 1
m,p-Xylene ND 2.0 0.47 ug/Kg 03/06/26 18:11 1
p-Isopropyltoluene ND 1.0 0.28 ug/Kg 03/06/26 18:11 1
sec-Butylbenzene ND 1.0 0.27 ug/Kg 03/06/26 18:11 1
Styrene ND 1.0 0.32 ug/Kg 03/06/26 18:11 1
trans-1,2-Dichloroethene ND 1.0 0.30 ug/Kg 03/06/26 18:11 1 trans-1,3-Dichloropropene ND 2.0 0.28 ug/Kg 03/06/26 18:11 1 tert-Butylbenzene ND 1.0 0.25 ug/Kg 03/06/26 18:11 1
Tetrachloroethene ND 1.0 0.22 ug/Kg 03/06/26 18:11 1
Toluene ND 1.0 0.27 ug/Kg 03/06/26 18:11 1
Trichloroethene ND 2.0 0.39 ug/Kg 03/06/26 18:11 1
Trichlorofluoromethane ND 10 0.27 ug/Kg 03/06/26 18:11 1 Vinyl acetate ND 10 3.9 ug/Kg 03/06/26 18:11 1
Vinyl chloride ND 1.0 0.38 ug/Kg 03/06/26 18:11 1
Xylenes, Total ND 2.0 0.60 ug/Kg 03/06/26 18:11 1
1,2-Dichloroethane-d4 (Surr) 101 32 - 179 03/06/26 18:11 1 MB MB
Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 101 80 - 120 03/06/26 18:11 1 Dibromofluoromethane (Surr) 101 58 - 147 03/06/26 18:11 1 Toluene-d8 (Surr) 100 80 - 120 03/06/26 18:11 1
Lab Sample ID: LCS 570-705634/3 Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
1,1,1,2-Tetrachloroethane 50.0 50.53 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
101 80 - 125
D %Rec
%Rec
Limits
1,1,1-Trichloroethane 50.0 54.90 ug/Kg 110 78 - 130
1,1,2,2-Tetrachloroethane 50.0 52.46 ug/Kg 105 80 - 124 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 52.64 ug/Kg 105 73 - 130
1,1,2-Trichloroethane 50.0 52.16 ug/Kg 104 80 - 123
1,1-Dichloroethane 50.0 52.32 ug/Kg 105 79 - 124
1,1-Dichloroethene 50.0 52.70 ug/Kg 105 74 - 132
1,1-Dichloropropene 50.0 53.77 ug/Kg 108 78 - 130
1,2,3-Trichlorobenzene 50.0 50.89 ug/Kg 102 80 - 123
1,2,3-Trichloropropane 50.0 51.77 ug/Kg 104 79 - 120
1,2,4-Trichlorobenzene 50.0 51.05 ug/Kg 102 80 - 125
Di-isopropyl ether (DIPE) 50.0 55.36 ug/Kg 111 73 - 132 Eurofins Calscience

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4645
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-705634/3 Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
1,2,4-Trimethylbenzene 50.0 50.70 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
101 80 - 124
D %Rec
%Rec
Limits
Ethanol 500 468.6 ug/Kg 94 46 - 159
1,2-Dibromo-3-Chloropropane 50.0 48.68 ug/Kg 97 67 - 120 Ethyl-t-butyl ether (ETBE) 50.0 54.12 ug/Kg 108 77 - 129 1,2-Dibromoethane 50.0 52.20 ug/Kg 104 80 - 120
Tert-amyl-methyl ether (TAME) 50.0 53.66 ug/Kg 107 80 - 120 1,2-Dichlorobenzene 50.0 50.03 ug/Kg 100 80 - 120
tert-Butyl alcohol (TBA) 250 248.3 ug/Kg 99 74 - 123
1,2-Dichloroethane 50.0 51.72 ug/Kg 103 77 - 120
1,2-Dichloropropane 50.0 53.11 ug/Kg 106 80 - 126
1,3,5-Trimethylbenzene 50.0 51.59 ug/Kg 103 80 - 121
1,3-Dichlorobenzene 50.0 49.09 ug/Kg 98 80 - 120
1,3-Dichloropropane 50.0 52.46 ug/Kg 105 80 - 120
1,4-Dichlorobenzene 50.0 47.89 ug/Kg 96 80 - 120
2,2-Dichloropropane 50.0 57.05 ug/Kg 114 73 - 135
2-Butanone (MEK) 50.0 59.80 ug/Kg 120 67 - 136
2-Chlorotoluene 50.0 50.11 ug/Kg 100 80 - 120
2-Hexanone 50.0 59.66 ug/Kg 119 70 - 137
4-Chlorotoluene 50.0 49.95 ug/Kg 100 80 - 121
4-Methyl-2-pentanone (MIBK) 50.0 56.04 ug/Kg 112 74 - 124 Acetone 50.0 55.95 ug/Kg 112 61 - 142
Benzene 50.0 52.21 ug/Kg 104 80 - 120
Bromobenzene 50.0 50.24 ug/Kg 100 80 - 120
Bromochloromethane 50.0 53.99 ug/Kg 108 80 - 120
Bromodichloromethane 50.0 53.08 ug/Kg 106 80 - 125
Bromoform 50.0 52.83 ug/Kg 106 74 - 138
Bromomethane 50.0 50.14 ug/Kg 100 58 - 136
cis-1,2-Dichloroethene 50.0 53.02 ug/Kg 106 80 - 124
cis-1,3-Dichloropropene 50.0 56.03 ug/Kg 112 80 - 123
Carbon disulfide 50.0 52.02 ug/Kg 104 68 - 128
Carbon tetrachloride 50.0 56.27 ug/Kg 113 75 - 140
Chlorobenzene 50.0 50.14 ug/Kg 100 80 - 120
Chloroethane 50.0 49.72 ug/Kg 99 76 - 137
Chloroform 50.0 51.13 ug/Kg 102 80 - 121
Chloromethane 50.0 45.35 ug/Kg 91 74 - 133
Dibromochloromethane 50.0 50.20 ug/Kg 100 80 - 132
Dibromomethane 50.0 52.83 ug/Kg 106 80 - 120
Dichlorodifluoromethane 50.0 49.51 ug/Kg 99 63 - 146
Ethylbenzene 50.0 50.55 ug/Kg 101 80 - 120
Isopropylbenzene 50.0 51.82 ug/Kg 104 80 - 122
Methylene Chloride 50.0 53.37 ug/Kg 107 74 - 120
Methyl-t-Butyl Ether (MTBE) 50.0 56.44 ug/Kg 113 79 - 123 Naphthalene 50.0 49.79 ug/Kg 100 79 - 121
n-Butylbenzene 50.0 51.02 ug/Kg 102 79 - 131
N-Propylbenzene 50.0 50.84 ug/Kg 102 80 - 122
o-Xylene 50.0 51.43 ug/Kg 103 80 - 120
m,p-Xylene 100 103.0 ug/Kg 103 80 - 120
p-Isopropyltoluene 50.0 51.60 ug/Kg 103 80 - 126
sec-Butylbenzene 50.0 51.04 ug/Kg 102 80 - 125
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4646
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-705634/3 Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
Styrene 50.0 51.91 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
104 80 - 120
D %Rec
%Rec
Limits
trans-1,2-Dichloroethene 50.0 53.27 ug/Kg 107 75 - 123
trans-1,3-Dichloropropene 50.0 55.18 ug/Kg 110 80 - 124 tert-Butylbenzene 50.0 51.37 ug/Kg 103 80 - 124
Tetrachloroethene 50.0 49.93 ug/Kg 100 80 - 122
Toluene 50.0 51.37 ug/Kg 103 80 - 120
Trichloroethene 50.0 52.07 ug/Kg 104 80 - 127
Trichlorofluoromethane 50.0 49.36 ug/Kg 99 70 - 144
Vinyl acetate 50.0 53.24 ug/Kg 106 71 - 125
Vinyl chloride 50.0 50.53 ug/Kg 101 79 - 133
1,2-Dichloroethane-d4 (Surr) 32 - 179
Surrogate
103

LCS LCS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 100 80 - 120
Dibromofluoromethane (Surr) 102 58 - 147
Toluene-d8 (Surr) 101 80 - 120
Lab Sample ID: LCSD 570-705634/4 Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
1,1,1,2-Tetrachloroethane 50.0 48.99 ug/Kg 3 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
98 80 - 125
D %Rec
%Rec
Limits
1,1,1-Trichloroethane 50.0 54.24 ug/Kg 108 78 - 130 1 20 1,1,2,2-Tetrachloroethane 50.0 51.74 ug/Kg 103 80 - 124 1 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 51.72 ug/Kg 103 73 - 130 2 20
1,1,2-Trichloroethane 50.0 51.92 ug/Kg 104 80 - 123 0 20 1,1-Dichloroethane 50.0 52.04 ug/Kg 104 79 - 124 1 20
1,1-Dichloroethene 50.0 52.68 ug/Kg 105 74 - 132 0 20
1,1-Dichloropropene 50.0 52.83 ug/Kg 106 78 - 130 2 20
1,2,3-Trichlorobenzene 50.0 49.95 ug/Kg 100 80 - 123 2 20 1,2,3-Trichloropropane 50.0 50.95 ug/Kg 102 79 - 120 2 20 1,2,4-Trichlorobenzene 50.0 49.90 ug/Kg 100 80 - 125 2 20 Di-isopropyl ether (DIPE) 50.0 54.15 ug/Kg 108 73 - 132 2 20 1,2,4-Trimethylbenzene 50.0 49.90 ug/Kg 100 80 - 124 2 20 Ethanol 500 471.5 ug/Kg 94 46 - 159 1 30
1,2-Dibromo-3-Chloropropane 50.0 47.20 ug/Kg 94 67 - 120 3 20 Ethyl-t-butyl ether (ETBE) 50.0 52.98 ug/Kg 106 77 - 129 2 20 1,2-Dibromoethane 50.0 51.99 ug/Kg 104 80 - 120 0 20
Tert-amyl-methyl ether (TAME) 50.0 52.33 ug/Kg 105 80 - 120 2 20 1,2-Dichlorobenzene 50.0 49.68 ug/Kg 99 80 - 120 1 20
tert-Butyl alcohol (TBA) 250 250.5 ug/Kg 100 74 - 123 1 20 1,2-Dichloroethane 50.0 51.30 ug/Kg 103 77 - 120 1 20
1,2-Dichloropropane 50.0 52.33 ug/Kg 105 80 - 126 1 20
1,3,5-Trimethylbenzene 50.0 51.68 ug/Kg 103 80 - 121 0 20 1,3-Dichlorobenzene 50.0 48.33 ug/Kg 97 80 - 120 2 20
1,3-Dichloropropane 50.0 52.46 ug/Kg 105 80 - 120 0 20
1,4-Dichlorobenzene 50.0 47.25 ug/Kg 95 80 - 120 1 20
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QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-705634/4 Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
2,2-Dichloropropane 50.0 56.24 ug/Kg 1 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
112 73 - 135
D %Rec
%Rec
Limits
2-Butanone (MEK) 50.0 52.34 ug/Kg 105 67 - 136 13 20
2-Chlorotoluene 50.0 49.66 ug/Kg 99 80 - 120 1 20
2-Hexanone 50.0 50.42 ug/Kg 101 70 - 137 17 20
4-Chlorotoluene 50.0 49.03 ug/Kg 98 80 - 121 2 20
4-Methyl-2-pentanone (MIBK) 50.0 54.77 ug/Kg 110 74 - 124 2 20 Acetone 50.0 49.33 ug/Kg 99 61 - 142 13 23
Benzene 50.0 51.91 ug/Kg 104 80 - 120 1 20
Bromobenzene 50.0 49.60 ug/Kg 99 80 - 120 1 20
Bromochloromethane 50.0 53.77 ug/Kg 108 80 - 120 0 20
Bromodichloromethane 50.0 52.15 ug/Kg 104 80 - 125 2 20 Bromoform 50.0 51.13 ug/Kg 102 74 - 138 3 20
Bromomethane 50.0 50.08 ug/Kg 100 58 - 136 0 20
cis-1,2-Dichloroethene 50.0 52.23 ug/Kg 104 80 - 124 2 20 cis-1,3-Dichloropropene 50.0 54.57 ug/Kg 109 80 - 123 3 20 Carbon disulfide 50.0 51.88 ug/Kg 104 68 - 128 0 20
Carbon tetrachloride 50.0 54.78 ug/Kg 110 75 - 140 3 20 Chlorobenzene 50.0 49.49 ug/Kg 99 80 - 120 1 20
Chloroethane 50.0 53.37 ug/Kg 107 76 - 137 7 20
Chloroform 50.0 49.89 ug/Kg 100 80 - 121 2 20
Chloromethane 50.0 46.75 ug/Kg 93 74 - 133 3 20
Dibromochloromethane 50.0 49.32 ug/Kg 99 80 - 132 2 20
Dibromomethane 50.0 52.20 ug/Kg 104 80 - 120 1 20
Dichlorodifluoromethane 50.0 52.12 ug/Kg 104 63 - 146 5 20 Ethylbenzene 50.0 49.96 ug/Kg 100 80 - 120 1 20
Isopropylbenzene 50.0 51.86 ug/Kg 104 80 - 122 0 20
Methylene Chloride 50.0 53.44 ug/Kg 107 74 - 120 0 20
Methyl-t-Butyl Ether (MTBE) 50.0 55.76 ug/Kg 112 79 - 123 1 20 Naphthalene 50.0 49.20 ug/Kg 98 79 - 121 1 20
n-Butylbenzene 50.0 50.41 ug/Kg 101 79 - 131 1 20
N-Propylbenzene 50.0 50.63 ug/Kg 101 80 - 122 0 20
o-Xylene 50.0 51.10 ug/Kg 102 80 - 120 1 20
m,p-Xylene 100 103.2 ug/Kg 103 80 - 120 0 20
p-Isopropyltoluene 50.0 50.37 ug/Kg 101 80 - 126 2 20
sec-Butylbenzene 50.0 50.60 ug/Kg 101 80 - 125 1 20
Styrene 50.0 51.63 ug/Kg 103 80 - 120 1 20
trans-1,2-Dichloroethene 50.0 52.39 ug/Kg 105 75 - 123 2 20 trans-1,3-Dichloropropene 50.0 54.31 ug/Kg 109 80 - 124 2 20 tert-Butylbenzene 50.0 50.80 ug/Kg 102 80 - 124 1 20
Tetrachloroethene 50.0 48.90 ug/Kg 98 80 - 122 2 20
Toluene 50.0 50.55 ug/Kg 101 80 - 120 2 20
Trichloroethene 50.0 50.76 ug/Kg 102 80 - 127 3 20
Trichlorofluoromethane 50.0 52.79 ug/Kg 106 70 - 144 7 20 Vinyl acetate 50.0 54.15 ug/Kg 108 71 - 125 2 20
Vinyl chloride 50.0 53.63 ug/Kg 107 79 - 133 6 20
1,2-Dichloroethane-d4 (Surr) 32 - 179
Surrogate
103

LCSD LCSD
%Recovery Qualifier Limits
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4648
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-705634/4 Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705634
4-Bromofluorobenzene (Surr) 80 - 120
Surrogate
100

LCSD LCSD
%Recovery Qualifier Limits
Dibromofluoromethane (Surr) 102 58 - 147
Toluene-d8 (Surr) 100 80 - 120
Method: 8270C - Semivolatile Organic Compounds (GC/MS)
Lab Sample ID: MB 570-704242/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
RL MDL
1,2,4-Trichlorobenzene ND 0.50 0.12 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,2-Dichlorobenzene ND 0.50 0.084 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 1,3-Dichlorobenzene ND 0.50 0.11 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 1,4-Dichlorobenzene ND 0.50 0.096 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 1-Methylnaphthalene ND 0.50 0.10 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,4,5-Trichlorophenol ND 0.50 0.20 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,4,6-Trichlorophenol ND 0.50 0.12 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,4-Dichlorophenol ND 0.50 0.13 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,4-Dimethylphenol ND 0.50 0.13 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,4-Dinitrophenol ND 2.0 0.91 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,4-Dinitrotoluene ND 0.50 0.081 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,6-Dichlorophenol ND 0.50 0.11 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,6-Dinitrotoluene ND 0.50 0.086 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2-Chloronaphthalene ND 0.50 0.087 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2-Chlorophenol ND 0.50 0.13 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2-Methylnaphthalene ND 0.50 0.10 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2-Methylphenol ND 0.50 0.097 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2-Nitroaniline ND 0.50 0.092 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2-Nitrophenol ND 0.50 0.14 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 3,3'-Dichlorobenzidine ND 2.5 0.54 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 3/4-Methylphenol ND 1.0 0.11 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 3-Nitroaniline ND 0.50 0.084 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 4,6-Dinitro-2-methylphenol ND 2.5 0.95 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 4-Bromophenyl phenyl ether ND 0.50 0.073 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 4-Chloro-3-methylphenol ND 0.50 0.093 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 4-Chloroaniline ND 0.50 0.082 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 4-Chlorophenyl phenyl ether ND 0.50 0.10 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 4-Nitroaniline ND 0.50 0.10 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 4-Nitrophenol ND 0.50 0.32 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Acenaphthene ND 0.50 0.079 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Acenaphthylene ND 0.50 0.096 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Aniline ND 0.50 0.095 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Anthracene ND 0.50 0.078 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Azobenzene ND 0.50 0.078 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Benzidine ND 5.0 0.58 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Benzo[a]anthracene ND 0.50 0.083 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Benzo[a]pyrene ND 0.50 0.10 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Benzo[b]fluoranthene ND 0.50 0.085 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Eurofins Calscience

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4649
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-704242/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
RL MDL
Benzo[g,h,i]perylene ND 0.50 0.089 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Benzo[k]fluoranthene ND 0.50 0.095 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Benzoic acid ND 2.5 0.67 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Benzyl alcohol ND 0.50 0.17 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Bis(2-chloroethoxy)methane ND 0.50 0.11 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Bis(2-chloroethyl)ether ND 2.5 0.11 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 bis(2 chloro-1-methylethyl) ether ND 0.50 0.12 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Bis(2-ethylhexyl) phthalate ND 0.50 0.22 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Butyl benzyl phthalate ND 0.50 0.24 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Chrysene ND 0.50 0.083 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Dibenz(a,h)anthracene ND 0.50 0.080 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Dibenzofuran ND 0.50 0.095 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Diethyl phthalate ND 0.50 0.12 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Dimethyl phthalate ND 0.50 0.098 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Di-n-butyl phthalate ND 0.50 0.11 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Di-n-octyl phthalate ND 0.50 0.23 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Fluoranthene ND 0.50 0.095 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Fluorene ND 0.50 0.094 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Hexachloro-1,3-butadiene ND 0.50 0.13 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Hexachlorobenzene ND 0.50 0.080 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Hexachlorocyclopentadiene ND 1.5 0.087 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Hexachloroethane ND 0.50 0.092 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Indeno[1,2,3-cd]pyrene ND 0.50 0.12 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Isophorone ND 0.50 0.080 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Naphthalene ND 0.50 0.14 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Nitrobenzene ND 2.0 0.14 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 N-Nitrosodimethylamine ND 0.50 0.089 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 N-Nitrosodi-n-propylamine ND 0.50 0.086 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 n-Nitrosodiphenylamine(as ND 0.50 0.085 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 diphenylamine)
Pentachlorophenol ND 2.5 1.8 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Phenanthrene ND 0.50 0.072 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Phenol ND 0.50 0.097 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Pyrene ND 0.50 0.10 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 Pyridine ND 0.50 0.24 mg/Kg 03/04/26 10:32 03/05/26 13:14 1 2,4,6-Tribromophenol (Surr) 86 20 - 135 03/05/26 13:14 1 MB MB
Surrogate
03/04/26 10:32
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
2-Fluorobiphenyl (Surr) 72 28 - 110 03/04/26 10:32 03/05/26 13:14 1 2-Fluorophenol (Surr) 78 20 - 135 03/04/26 10:32 03/05/26 13:14 1 Nitrobenzene-d5 (Surr) 91 22 - 116 03/04/26 10:32 03/05/26 13:14 1 p-Terphenyl-d14 (Surr) 71 27 - 118 03/04/26 10:32 03/05/26 13:14 1 Phenol-d6 (Surr) 79 20 - 127 03/04/26 10:32 03/05/26 13:14 1 Eurofins Calscience

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15 ATTACHMENT 6 - 3677
4650
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-704242/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
1,2,4-Trichlorobenzene 5.00 3.956 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
79 62 - 120
D %Rec
%Rec
Limits
1,2-Dichlorobenzene 5.00 3.970 mg/Kg 79 60 - 120
1,3-Dichlorobenzene 5.00 4.006 mg/Kg 80 56 - 120
1,4-Dichlorobenzene 5.00 3.949 mg/Kg 79 56 - 120
1-Methylnaphthalene 5.00 3.938 mg/Kg 79 58 - 120
2,4,5-Trichlorophenol 5.00 4.637 mg/Kg 93 54 - 121
2,4,6-Trichlorophenol 5.00 4.758 mg/Kg 95 58 - 120
2,4-Dichlorophenol 5.00 4.378 mg/Kg 88 61 - 122
2,4-Dimethylphenol 5.00 4.261 mg/Kg 85 45 - 145
2,4-Dinitrophenol 5.00 6.931 mg/Kg 139 10 - 165
2,4-Dinitrotoluene 5.00 5.136 mg/Kg 103 55 - 122
2,6-Dichlorophenol 5.00 4.233 mg/Kg 85 58 - 120
2,6-Dinitrotoluene 5.00 5.152 mg/Kg 103 59 - 120
2-Chloronaphthalene 5.00 4.164 mg/Kg 83 60 - 120
2-Chlorophenol 5.00 4.950 mg/Kg 99 59 - 130
2-Methylnaphthalene 5.00 3.815 mg/Kg 76 59 - 126
2-Methylphenol 5.00 4.528 mg/Kg 91 58 - 134
2-Nitroaniline 5.00 5.199 mg/Kg 104 54 - 120
2-Nitrophenol 5.00 6.304 *+ me mg/Kg 126 51 - 125
3,3'-Dichlorobenzidine 5.00 3.555 mg/Kg 71 40 - 120
3/4-Methylphenol 10.0 8.495 mg/Kg 85 58 - 129
3-Nitroaniline 5.00 4.332 mg/Kg 87 50 - 120
4,6-Dinitro-2-methylphenol 5.00 6.427 mg/Kg 129 27 - 148 4-Bromophenyl phenyl ether 5.00 3.993 mg/Kg 80 59 - 120 4-Chloro-3-methylphenol 5.00 4.411 mg/Kg 88 54 - 132
4-Chloroaniline 5.00 3.235 mg/Kg 65 38 - 120
4-Chlorophenyl phenyl ether 5.00 4.083 mg/Kg 82 61 - 120 4-Nitroaniline 5.00 4.742 mg/Kg 95 52 - 124
4-Nitrophenol 5.00 4.650 mg/Kg 93 29 - 130
Acenaphthene 5.00 3.993 mg/Kg 80 58 - 120
Acenaphthylene 5.00 4.070 mg/Kg 81 56 - 120
Aniline 5.00 3.436 mg/Kg 69 26 - 120
Anthracene 5.00 4.001 mg/Kg 80 61 - 120
Azobenzene 5.00 3.737 mg/Kg 75 55 - 120
Benzidine 5.00 1.665 J mg/Kg 33 10 - 120
Benzo[a]anthracene 5.00 4.244 mg/Kg 85 62 - 120
Benzo[a]pyrene 5.00 4.415 mg/Kg 88 55 - 130
Benzo[b]fluoranthene 5.00 4.544 mg/Kg 91 56 - 123
Benzo[g,h,i]perylene 5.00 4.180 mg/Kg 84 53 - 120
Benzo[k]fluoranthene 5.00 4.258 mg/Kg 85 56 - 122
Benzoic acid 5.00 6.662 mg/Kg 133 10 - 133
Benzyl alcohol 5.00 4.305 mg/Kg 86 35 - 139
Bis(2-chloroethoxy)methane 5.00 3.885 mg/Kg 78 55 - 120 Bis(2-chloroethyl)ether 5.00 3.768 mg/Kg 75 48 - 120
bis(2 chloro-1-methylethyl) ether 5.00 3.900 mg/Kg 78 45 - 122 Bis(2-ethylhexyl) phthalate 5.00 4.533 mg/Kg 91 58 - 121 Butyl benzyl phthalate 5.00 4.547 mg/Kg 91 57 - 122
Chrysene 5.00 4.130 mg/Kg 83 59 - 120
Eurofins Calscience

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4651
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-704242/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
Dibenz(a,h)anthracene 5.00 4.375 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
88 56 - 124
D %Rec
%Rec
Limits
Dibenzofuran 5.00 4.134 mg/Kg 83 61 - 120
Diethyl phthalate 5.00 4.636 mg/Kg 93 60 - 120
Dimethyl phthalate 5.00 4.440 mg/Kg 89 59 - 120
Di-n-butyl phthalate 5.00 4.231 mg/Kg 85 60 - 120
Di-n-octyl phthalate 5.00 4.976 mg/Kg 100 58 - 127
Fluoranthene 5.00 4.078 mg/Kg 82 58 - 120
Fluorene 5.00 4.172 mg/Kg 83 60 - 120
Hexachloro-1,3-butadiene 5.00 3.896 mg/Kg 78 56 - 120
Hexachlorobenzene 5.00 4.040 mg/Kg 81 58 - 120
Hexachlorocyclopentadiene 5.00 4.831 mg/Kg 97 10 - 183
Hexachloroethane 5.00 4.029 mg/Kg 81 51 - 120
Indeno[1,2,3-cd]pyrene 5.00 4.290 mg/Kg 86 55 - 126
Isophorone 5.00 3.848 mg/Kg 77 54 - 120
Naphthalene 5.00 3.761 mg/Kg 75 58 - 120
Nitrobenzene 5.00 4.113 mg/Kg 82 53 - 120
N-Nitrosodimethylamine 5.00 3.789 mg/Kg 76 44 - 120
N-Nitrosodi-n-propylamine 5.00 3.678 mg/Kg 74 54 - 120
n-Nitrosodiphenylamine(as
diphenylamine)

5.00 4.613 mg/Kg 92 72 - 128
Pentachlorophenol 5.00 5.065 mg/Kg 101 26 - 134
Phenanthrene 5.00 4.035 mg/Kg 81 61 - 120
Phenol 5.00 4.507 mg/Kg 90 56 - 129
Pyrene 5.00 4.209 mg/Kg 84 57 - 120
Pyridine 5.00 3.075 mg/Kg 61 27 - 120
2,4,6-Tribromophenol (Surr) 20 - 135
Surrogate
99 LCS LCS
%Recovery Qualifier Limits
2-Fluorobiphenyl (Surr) 77 28 - 110
2-Fluorophenol (Surr) 91 20 - 135
Nitrobenzene-d5 (Surr) 87 22 - 116
p-Terphenyl-d14 (Surr) 82 27 - 118
Phenol-d6 (Surr) 89 20 - 127
Lab Sample ID: LCSD 570-704242/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
1,2,4-Trichlorobenzene 5.00 3.987 mg/Kg 1 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
80 62 - 120
D %Rec
%Rec
Limits
1,2-Dichlorobenzene 5.00 3.951 mg/Kg 79 60 - 120 0 20
1,3-Dichlorobenzene 5.00 3.993 mg/Kg 80 56 - 120 0 20
1,4-Dichlorobenzene 5.00 3.991 mg/Kg 80 56 - 120 1 20
1-Methylnaphthalene 5.00 4.028 mg/Kg 81 58 - 120 2 20
2,4,5-Trichlorophenol 5.00 4.549 mg/Kg 91 54 - 121 2 20 2,4,6-Trichlorophenol 5.00 4.726 mg/Kg 95 58 - 120 1 20 2,4-Dichlorophenol 5.00 4.299 mg/Kg 86 61 - 122 2 20
2,4-Dimethylphenol 5.00 4.405 mg/Kg 88 45 - 145 3 20
2,4-Dinitrophenol 5.00 7.174 mg/Kg 143 10 - 165 3 35
Eurofins Calscience

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4652
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-704242/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
2,4-Dinitrotoluene 5.00 5.149 mg/Kg 0 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
103 55 - 122
D %Rec
%Rec
Limits
2,6-Dichlorophenol 5.00 4.225 mg/Kg 84 58 - 120 0 20
2,6-Dinitrotoluene 5.00 5.159 mg/Kg 103 59 - 120 0 21
2-Chloronaphthalene 5.00 4.141 mg/Kg 83 60 - 120 1 20
2-Chlorophenol 5.00 4.976 mg/Kg 100 59 - 130 1 20
2-Methylnaphthalene 5.00 3.921 mg/Kg 78 59 - 126 3 20
2-Methylphenol 5.00 4.465 mg/Kg 89 58 - 134 1 20
2-Nitroaniline 5.00 5.238 mg/Kg 105 54 - 120 1 20
2-Nitrophenol 5.00 6.377 *+ me mg/Kg 128 51 - 125 1 20
3,3'-Dichlorobenzidine 5.00 4.003 mg/Kg 80 40 - 120 12 22 3/4-Methylphenol 10.0 8.350 mg/Kg 84 58 - 129 2 20
3-Nitroaniline 5.00 4.627 mg/Kg 93 50 - 120 7 21
4,6-Dinitro-2-methylphenol 5.00 6.415 mg/Kg 128 27 - 148 0 23 4-Bromophenyl phenyl ether 5.00 3.937 mg/Kg 79 59 - 120 1 20 4-Chloro-3-methylphenol 5.00 4.453 mg/Kg 89 54 - 132 1 47 4-Chloroaniline 5.00 3.796 mg/Kg 76 38 - 120 16 26
4-Chlorophenyl phenyl ether 5.00 4.027 mg/Kg 81 61 - 120 1 20 4-Nitroaniline 5.00 4.788 mg/Kg 96 52 - 124 1 22
4-Nitrophenol 5.00 4.654 mg/Kg 93 29 - 130 0 51
Acenaphthene 5.00 3.921 mg/Kg 78 58 - 120 2 20
Acenaphthylene 5.00 4.061 mg/Kg 81 56 - 120 0 20
Aniline 5.00 3.948 mg/Kg 79 26 - 120 14 28
Anthracene 5.00 4.032 mg/Kg 81 61 - 120 1 20
Azobenzene 5.00 3.736 mg/Kg 75 55 - 120 0 20
Benzidine 5.00 2.381 J mg/Kg 48 10 - 120 35 60
Benzo[a]anthracene 5.00 4.262 mg/Kg 85 62 - 120 0 20
Benzo[a]pyrene 5.00 4.462 mg/Kg 89 55 - 130 1 20
Benzo[b]fluoranthene 5.00 4.526 mg/Kg 91 56 - 123 0 20
Benzo[g,h,i]perylene 5.00 4.345 mg/Kg 87 53 - 120 4 20
Benzo[k]fluoranthene 5.00 4.308 mg/Kg 86 56 - 122 1 21
Benzoic acid 5.00 6.787 *+ me mg/Kg 136 10 - 133 2 50
Benzyl alcohol 5.00 4.281 mg/Kg 86 35 - 139 1 25
Bis(2-chloroethoxy)methane 5.00 3.865 mg/Kg 77 55 - 120 1 20 Bis(2-chloroethyl)ether 5.00 3.910 mg/Kg 78 48 - 120 4 20 bis(2 chloro-1-methylethyl) ether 5.00 3.958 mg/Kg 79 45 - 122 1 20 Bis(2-ethylhexyl) phthalate 5.00 4.551 mg/Kg 91 58 - 121 0 20 Butyl benzyl phthalate 5.00 4.458 mg/Kg 89 57 - 122 2 21 Chrysene 5.00 4.098 mg/Kg 82 59 - 120 1 20
Dibenz(a,h)anthracene 5.00 4.533 mg/Kg 91 56 - 124 4 20 Dibenzofuran 5.00 4.158 mg/Kg 83 61 - 120 1 20
Diethyl phthalate 5.00 4.595 mg/Kg 92 60 - 120 1 20
Dimethyl phthalate 5.00 4.388 mg/Kg 88 59 - 120 1 20
Di-n-butyl phthalate 5.00 4.173 mg/Kg 83 60 - 120 1 20
Di-n-octyl phthalate 5.00 4.963 mg/Kg 99 58 - 127 0 20
Fluoranthene 5.00 4.155 mg/Kg 83 58 - 120 2 20
Fluorene 5.00 4.163 mg/Kg 83 60 - 120 0 20
Hexachloro-1,3-butadiene 5.00 3.954 mg/Kg 79 56 - 120 1 20 Hexachlorobenzene 5.00 3.977 mg/Kg 80 58 - 120 2 24
Hexachlorocyclopentadiene 5.00 4.788 mg/Kg 96 10 - 183 1 23 Eurofins Calscience

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4653
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-704242/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
Hexachloroethane 5.00 3.988 mg/Kg 1 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
80 51 - 120
D %Rec
%Rec
Limits
Indeno[1,2,3-cd]pyrene 5.00 4.387 mg/Kg 88 55 - 126 2 20 Isophorone 5.00 3.943 mg/Kg 79 54 - 120 2 20
Naphthalene 5.00 3.805 mg/Kg 76 58 - 120 1 20
Nitrobenzene 5.00 4.203 mg/Kg 84 53 - 120 2 20
N-Nitrosodimethylamine 5.00 3.820 mg/Kg 76 44 - 120 1 21 N-Nitrosodi-n-propylamine 5.00 3.770 mg/Kg 75 54 - 120 2 20 n-Nitrosodiphenylamine(as
diphenylamine)

5.00 4.662 mg/Kg 93 72 - 128 1 20
Pentachlorophenol 5.00 5.008 mg/Kg 100 26 - 134 1 20
Phenanthrene 5.00 4.016 mg/Kg 80 61 - 120 0 20
Phenol 5.00 4.496 mg/Kg 90 56 - 129 0 20
Pyrene 5.00 4.196 mg/Kg 84 57 - 120 0 21
Pyridine 5.00 2.371 *1 mg/Kg 47 27 - 120 26 23
2,4,6-Tribromophenol (Surr) 20 - 135
Surrogate
98 LCSD LCSD
%Recovery Qualifier Limits
2-Fluorobiphenyl (Surr) 77 28 - 110
2-Fluorophenol (Surr) 90 20 - 135
Nitrobenzene-d5 (Surr) 89 22 - 116
p-Terphenyl-d14 (Surr) 84 27 - 118
Phenol-d6 (Surr) 89 20 - 127
Lab Sample ID: 570-269712-1 MS Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
1,2,4-Trichlorobenzene ND 5.38 3.800 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 71 42 - 108
D %Rec
%Rec
Limits
1,2-Dichlorobenzene ND 5.38 3.739 mg/Kg ☼ 70 44 - 104
1,3-Dichlorobenzene ND 5.38 3.750 mg/Kg ☼ 70 42 - 103
1,4-Dichlorobenzene ND 5.38 3.738 mg/Kg ☼ 70 42 - 98
1-Methylnaphthalene ND 5.38 3.844 mg/Kg ☼ 71 36 - 112
2,4,5-Trichlorophenol ND 5.38 4.491 mg/Kg ☼ 84 20 - 144 2,4,6-Trichlorophenol ND 5.38 4.558 mg/Kg ☼ 85 20 - 140 2,4-Dichlorophenol ND 5.38 4.259 mg/Kg ☼ 79 20 - 139
2,4-Dimethylphenol ND 5.38 3.596 mg/Kg ☼ 67 36 - 116
2,4-Dinitrophenol ND 5.38 6.709 mg/Kg ☼ 125 10 - 153
2,4-Dinitrotoluene ND 5.38 4.896 mg/Kg ☼ 91 29 - 120
2,6-Dichlorophenol ND 5.38 4.031 mg/Kg ☼ 75 20 - 135
2,6-Dinitrotoluene ND 5.38 4.914 mg/Kg ☼ 91 38 - 115
2-Chloronaphthalene ND 5.38 3.944 mg/Kg ☼ 73 31 - 119
2-Chlorophenol ND 5.38 4.721 mg/Kg ☼ 88 28 - 135
2-Methylnaphthalene ND 5.38 3.744 mg/Kg ☼ 70 40 - 128
2-Methylphenol ND 5.38 4.058 mg/Kg ☼ 75 42 - 127
2-Nitroaniline ND 5.38 5.156 mg/Kg ☼ 96 24 - 122
2-Nitrophenol ND *+ 5.38 6.375 mg/Kg ☼ 119 20 - 131
3,3'-Dichlorobenzidine ND 5.38 3.048 mg/Kg ☼ 57 10 - 115 3/4-Methylphenol ND 10.8 7.982 mg/Kg ☼ 74 38 - 126
Eurofins Calscience

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4654
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: 570-269712-1 MS Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
3-Nitroaniline ND 5.38 4.289 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 80 20 - 119
D %Rec
%Rec
Limits
4,6-Dinitro-2-methylphenol ND 5.38 6.158 mg/Kg ☼ 115 10 - 138 4-Bromophenyl phenyl ether ND 5.38 3.792 mg/Kg ☼ 71 39 - 114 4-Chloro-3-methylphenol ND 5.38 4.371 mg/Kg ☼ 81 33 - 131 4-Chloroaniline ND 5.38 2.981 mg/Kg ☼ 55 20 - 106
4-Chlorophenyl phenyl ether ND 5.38 3.903 mg/Kg ☼ 73 42 - 111 4-Nitroaniline ND 5.38 4.519 mg/Kg ☼ 84 20 - 124
4-Nitrophenol ND 5.38 4.848 mg/Kg ☼ 90 10 - 147
Acenaphthene ND 5.38 3.765 mg/Kg ☼ 70 34 - 114
Acenaphthylene ND 5.38 3.839 mg/Kg ☼ 71 29 - 111
Aniline ND 5.38 2.317 mg/Kg ☼ 43 20 - 99
Anthracene ND 5.38 3.876 mg/Kg ☼ 72 28 - 129
Azobenzene ND 5.38 3.638 mg/Kg ☼ 68 24 - 126
Benzidine ND F1 5.38 ND F1 mg/Kg ☼ 0 10 - 66
Benzo[a]anthracene ND 5.38 3.999 mg/Kg ☼ 74 23 - 129
Benzo[a]pyrene ND 5.38 4.190 mg/Kg ☼ 78 20 - 136
Benzo[b]fluoranthene ND 5.38 4.216 mg/Kg ☼ 78 20 - 136
Benzo[g,h,i]perylene ND 5.38 4.053 mg/Kg ☼ 75 20 - 127
Benzo[k]fluoranthene ND 5.38 4.005 mg/Kg ☼ 74 20 - 144
Benzoic acid ND *+ F1 5.38 6.658 mg/Kg ☼ 124 10 - 130
Benzyl alcohol ND 5.38 4.175 mg/Kg ☼ 78 10 - 137
Bis(2-chloroethoxy)methane ND 5.38 3.758 mg/Kg ☼ 70 40 - 106 Bis(2-chloroethyl)ether ND 5.38 3.913 mg/Kg ☼ 73 31 - 121 bis(2 chloro-1-methylethyl) ether ND 5.38 3.858 mg/Kg ☼ 72 35 - 110 Bis(2-ethylhexyl) phthalate ND 5.38 4.529 mg/Kg ☼ 84 36 - 123 Butyl benzyl phthalate ND 5.38 4.236 mg/Kg ☼ 79 34 - 121 Chrysene ND 5.38 3.900 mg/Kg ☼ 73 20 - 128
Dibenz(a,h)anthracene ND 5.38 4.161 mg/Kg ☼ 77 22 - 131 Dibenzofuran ND 5.38 3.917 mg/Kg ☼ 73 29 - 122
Diethyl phthalate ND 5.38 4.325 mg/Kg ☼ 80 33 - 118
Dimethyl phthalate ND 5.38 4.165 mg/Kg ☼ 77 33 - 115
Di-n-butyl phthalate ND 5.38 3.987 mg/Kg ☼ 74 43 - 119
Di-n-octyl phthalate ND 5.38 4.931 mg/Kg ☼ 92 36 - 126
Fluoranthene ND 5.38 3.906 mg/Kg ☼ 73 20 - 136
Fluorene ND 5.38 3.975 mg/Kg ☼ 74 31 - 122
Hexachloro-1,3-butadiene ND 5.38 3.762 mg/Kg ☼ 70 46 - 110 Hexachlorobenzene ND 5.38 3.859 mg/Kg ☼ 72 28 - 124
Hexachlorocyclopentadiene ND 5.38 4.030 mg/Kg ☼ 75 10 - 126 Hexachloroethane ND 5.38 3.802 mg/Kg ☼ 71 31 - 103
Indeno[1,2,3-cd]pyrene ND 5.38 4.012 mg/Kg ☼ 75 20 - 137 Isophorone ND 5.38 3.745 mg/Kg ☼ 70 40 - 102
Naphthalene ND 5.38 3.724 mg/Kg ☼ 69 32 - 115
Nitrobenzene ND 5.38 3.995 mg/Kg ☼ 74 41 - 103
N-Nitrosodimethylamine ND 5.38 3.534 mg/Kg ☼ 66 20 - 109 N-Nitrosodi-n-propylamine ND 5.38 3.703 mg/Kg ☼ 69 21 - 121 n-Nitrosodiphenylamine(as
diphenylamine)
ND 5.38 4.457 mg/Kg ☼ 83 35 - 147
Pentachlorophenol ND 5.38 5.262 mg/Kg ☼ 98 10 - 140
Phenanthrene ND 5.38 3.891 mg/Kg ☼ 72 27 - 128
Eurofins Calscience

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4655
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: 570-269712-1 MS Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
Phenol ND 5.38 4.345 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 81 35 - 127
D %Rec
%Rec
Limits
Pyrene ND 5.38 4.039 mg/Kg ☼ 75 20 - 136
Pyridine ND *1 5.38 3.004 mg/Kg ☼ 56 20 - 113
2,4,6-Tribromophenol (Surr) 20 - 135
Surrogate
83 MS MS
%Recovery Qualifier Limits
2-Fluorobiphenyl (Surr) 66 28 - 110
2-Fluorophenol (Surr) 78 20 - 135
Nitrobenzene-d5 (Surr) 78 22 - 116
p-Terphenyl-d14 (Surr) 70 27 - 118
Phenol-d6 (Surr) 77 20 - 127
Lab Sample ID: 570-269712-1 MSD Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
1,2,4-Trichlorobenzene ND 5.39 4.286 mg/Kg 12 30
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
☼ 79 42 - 108
D %Rec
%Rec
Limits
1,2-Dichlorobenzene ND 5.39 4.274 mg/Kg ☼ 79 44 - 104 13 30 1,3-Dichlorobenzene ND 5.39 4.281 mg/Kg ☼ 79 42 - 103 13 30 1,4-Dichlorobenzene ND 5.39 4.195 mg/Kg ☼ 78 42 - 98 12 30 1-Methylnaphthalene ND 5.39 4.259 mg/Kg ☼ 79 36 - 112 10 30 2,4,5-Trichlorophenol ND 5.39 5.181 mg/Kg ☼ 96 20 - 144 14 30 2,4,6-Trichlorophenol ND 5.39 5.266 mg/Kg ☼ 98 20 - 140 14 30 2,4-Dichlorophenol ND 5.39 4.715 mg/Kg ☼ 87 20 - 139 10 30 2,4-Dimethylphenol ND 5.39 3.999 mg/Kg ☼ 74 36 - 116 11 30 2,4-Dinitrophenol ND 5.39 7.936 mg/Kg ☼ 147 10 - 153 17 30 2,4-Dinitrotoluene ND 5.39 5.533 mg/Kg ☼ 103 29 - 120 12 30 2,6-Dichlorophenol ND 5.39 4.513 mg/Kg ☼ 84 20 - 135 11 30 2,6-Dinitrotoluene ND 5.39 5.503 mg/Kg ☼ 102 38 - 115 11 30 2-Chloronaphthalene ND 5.39 4.547 mg/Kg ☼ 84 31 - 119 14 30 2-Chlorophenol ND 5.39 5.467 mg/Kg ☼ 101 28 - 135 15 30 2-Methylnaphthalene ND 5.39 4.148 mg/Kg ☼ 77 40 - 128 10 30 2-Methylphenol ND 5.39 4.638 mg/Kg ☼ 86 42 - 127 13 30
2-Nitroaniline ND 5.39 5.792 mg/Kg ☼ 107 24 - 122 12 30 2-Nitrophenol ND *+ 5.39 7.059 mg/Kg ☼ 131 20 - 131 10 30 3,3'-Dichlorobenzidine ND 5.39 3.854 mg/Kg ☼ 71 10 - 115 23 30 3/4-Methylphenol ND 10.8 8.984 mg/Kg ☼ 83 38 - 126 12 30 3-Nitroaniline ND 5.39 4.834 mg/Kg ☼ 90 20 - 119 12 30
4,6-Dinitro-2-methylphenol ND 5.39 7.066 mg/Kg ☼ 131 10 - 138 14 30 4-Bromophenyl phenyl ether ND 5.39 4.340 mg/Kg ☼ 80 39 - 114 13 30 4-Chloro-3-methylphenol ND 5.39 4.917 mg/Kg ☼ 91 33 - 131 12 30 4-Chloroaniline ND 5.39 3.481 mg/Kg ☼ 65 20 - 106 15 30 4-Chlorophenyl phenyl ether ND 5.39 4.430 mg/Kg ☼ 82 42 - 111 13 30 4-Nitroaniline ND 5.39 5.164 mg/Kg ☼ 96 20 - 124 13 30
4-Nitrophenol ND 5.39 5.352 mg/Kg ☼ 99 10 - 147 10 30
Acenaphthene ND 5.39 4.276 mg/Kg ☼ 79 34 - 114 13 30
Acenaphthylene ND 5.39 4.404 mg/Kg ☼ 82 29 - 111 14 30
Eurofins Calscience

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4656
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: 570-269712-1 MSD Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
Aniline ND 5.39 3.063 mg/Kg 28 30
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
☼ 57 20 - 99
D %Rec
%Rec
Limits
Anthracene ND 5.39 4.334 mg/Kg ☼ 80 28 - 129 11 30
Azobenzene ND 5.39 4.140 mg/Kg ☼ 77 24 - 126 13 30
Benzidine ND F1 5.39 ND F1 mg/Kg ☼ 0 10 - 66 NC 30
Benzo[a]anthracene ND 5.39 4.587 mg/Kg ☼ 85 23 - 129 14 30 Benzo[a]pyrene ND 5.39 4.836 mg/Kg ☼ 90 20 - 136 14 30
Benzo[b]fluoranthene ND 5.39 4.749 mg/Kg ☼ 88 20 - 136 12 30 Benzo[g,h,i]perylene ND 5.39 4.521 mg/Kg ☼ 84 20 - 127 11 30 Benzo[k]fluoranthene ND 5.39 4.683 mg/Kg ☼ 87 20 - 144 16 30 Benzoic acid ND *+ F1 5.39 7.594 F1 mg/Kg ☼ 141 10 - 130 13 30 Benzyl alcohol ND 5.39 4.908 mg/Kg ☼ 91 10 - 137 16 30
Bis(2-chloroethoxy)methane ND 5.39 4.227 mg/Kg ☼ 78 40 - 106 12 30 Bis(2-chloroethyl)ether ND 5.39 4.368 mg/Kg ☼ 81 31 - 121 11 30 bis(2 chloro-1-methylethyl) ether ND 5.39 4.523 mg/Kg ☼ 84 35 - 110 16 30 Bis(2-ethylhexyl) phthalate ND 5.39 5.182 mg/Kg ☼ 96 36 - 123 13 30 Butyl benzyl phthalate ND 5.39 4.879 mg/Kg ☼ 90 34 - 121 14 30 Chrysene ND 5.39 4.511 mg/Kg ☼ 84 20 - 128 15 30
Dibenz(a,h)anthracene ND 5.39 4.633 mg/Kg ☼ 86 22 - 131 11 30 Dibenzofuran ND 5.39 4.419 mg/Kg ☼ 82 29 - 122 12 30
Diethyl phthalate ND 5.39 4.861 mg/Kg ☼ 90 33 - 118 12 30 Dimethyl phthalate ND 5.39 4.699 mg/Kg ☼ 87 33 - 115 12 30 Di-n-butyl phthalate ND 5.39 4.508 mg/Kg ☼ 84 43 - 119 12 30 Di-n-octyl phthalate ND 5.39 5.653 mg/Kg ☼ 105 36 - 126 14 30 Fluoranthene ND 5.39 4.322 mg/Kg ☼ 80 20 - 136 10 30
Fluorene ND 5.39 4.476 mg/Kg ☼ 83 31 - 122 12 30
Hexachloro-1,3-butadiene ND 5.39 4.164 mg/Kg ☼ 77 46 - 110 10 30 Hexachlorobenzene ND 5.39 4.315 mg/Kg ☼ 80 28 - 124 11 30 Hexachlorocyclopentadiene ND 5.39 4.823 mg/Kg ☼ 89 10 - 126 18 30 Hexachloroethane ND 5.39 4.406 mg/Kg ☼ 82 31 - 103 15 30 Indeno[1,2,3-cd]pyrene ND 5.39 4.551 mg/Kg ☼ 84 20 - 137 13 30 Isophorone ND 5.39 4.270 mg/Kg ☼ 79 40 - 102 13 30
Naphthalene ND 5.39 4.093 mg/Kg ☼ 76 32 - 115 9 30
Nitrobenzene ND 5.39 4.557 mg/Kg ☼ 84 41 - 103 13 30
N-Nitrosodimethylamine ND 5.39 4.210 mg/Kg ☼ 78 20 - 109 17 30 N-Nitrosodi-n-propylamine ND 5.39 4.129 mg/Kg ☼ 77 21 - 121 11 30 n-Nitrosodiphenylamine(as
diphenylamine)
ND 5.39 5.062 mg/Kg ☼ 94 35 - 147 13 30
Pentachlorophenol ND 5.39 5.882 mg/Kg ☼ 109 10 - 140 11 30 Phenanthrene ND 5.39 4.347 mg/Kg ☼ 81 27 - 128 11 30
Phenol ND 5.39 4.969 mg/Kg ☼ 92 35 - 127 13 30
Pyrene ND 5.39 4.710 mg/Kg ☼ 87 20 - 136 15 30
Pyridine ND *1 5.39 2.894 mg/Kg ☼ 54 20 - 113 4 30
2,4,6-Tribromophenol (Surr) 20 - 135
Surrogate
97 MSD MSD
%Recovery Qualifier Limits
2-Fluorobiphenyl (Surr) 77 28 - 110
2-Fluorophenol (Surr) 89 20 - 135
Nitrobenzene-d5 (Surr) 89 22 - 116
Eurofins Calscience

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4657
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: 570-269712-1 MSD Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704919 Prep Batch: 704242
p-Terphenyl-d14 (Surr) 27 - 118
Surrogate
84 MSD MSD
%Recovery Qualifier Limits
Phenol-d6 (Surr) 88 20 - 127
Lab Sample ID: MB 570-708773/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
RL MDL
1,2,4-Trichlorobenzene ND 0.50 0.12 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,2-Dichlorobenzene ND 0.50 0.084 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 1,3-Dichlorobenzene ND 0.50 0.11 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 1,4-Dichlorobenzene ND 0.50 0.096 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 1-Methylnaphthalene ND 0.50 0.10 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,4,5-Trichlorophenol ND 0.50 0.20 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,4,6-Trichlorophenol ND 0.50 0.12 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,4-Dichlorophenol ND 0.50 0.13 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,4-Dimethylphenol ND 0.50 0.13 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,4-Dinitrophenol ND 2.0 0.91 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,4-Dinitrotoluene ND 0.50 0.081 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,6-Dichlorophenol ND 0.50 0.11 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,6-Dinitrotoluene ND 0.50 0.086 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2-Chloronaphthalene ND 0.50 0.087 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2-Chlorophenol ND 0.50 0.13 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2-Methylnaphthalene ND 0.50 0.10 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2-Methylphenol ND 0.50 0.097 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2-Nitroaniline ND 0.50 0.092 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2-Nitrophenol ND 0.50 0.14 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 3,3'-Dichlorobenzidine ND 2.5 0.54 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 3/4-Methylphenol ND 1.0 0.11 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 3-Nitroaniline ND 0.50 0.084 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 4,6-Dinitro-2-methylphenol ND 2.5 0.95 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 4-Bromophenyl phenyl ether ND 0.50 0.073 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 4-Chloro-3-methylphenol ND 0.50 0.093 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 4-Chloroaniline ND 0.50 0.082 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 4-Chlorophenyl phenyl ether ND 0.50 0.10 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 4-Nitroaniline ND 0.50 0.10 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 4-Nitrophenol ND 0.50 0.32 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Acenaphthene ND 0.50 0.079 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Acenaphthylene ND 0.50 0.096 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Aniline ND 0.50 0.095 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Anthracene ND 0.50 0.078 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Azobenzene ND 0.50 0.078 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Benzidine ND 5.0 0.58 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Benzo[a]anthracene ND 0.50 0.083 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Benzo[a]pyrene ND 0.50 0.10 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Benzo[b]fluoranthene ND 0.50 0.085 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Benzo[g,h,i]perylene ND 0.50 0.089 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Benzo[k]fluoranthene ND 0.50 0.095 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Eurofins Calscience

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QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-708773/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
RL MDL
Benzoic acid ND 2.5 0.67 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Benzyl alcohol ND 0.50 0.17 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Bis(2-chloroethoxy)methane ND 0.50 0.11 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Bis(2-chloroethyl)ether ND 2.5 0.11 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 bis(2 chloro-1-methylethyl) ether ND 0.50 0.12 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Bis(2-ethylhexyl) phthalate ND 0.50 0.22 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Butyl benzyl phthalate ND 0.50 0.24 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Chrysene ND 0.50 0.083 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Dibenz(a,h)anthracene ND 0.50 0.080 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Dibenzofuran ND 0.50 0.095 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Diethyl phthalate ND 0.50 0.12 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Dimethyl phthalate ND 0.50 0.098 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Di-n-butyl phthalate ND 0.50 0.11 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Di-n-octyl phthalate ND 0.50 0.23 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Fluoranthene ND 0.50 0.095 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Fluorene ND 0.50 0.094 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Hexachloro-1,3-butadiene ND 0.50 0.13 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Hexachlorobenzene ND 0.50 0.080 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Hexachlorocyclopentadiene ND 1.5 0.087 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Hexachloroethane ND 0.50 0.092 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Indeno[1,2,3-cd]pyrene ND 0.50 0.12 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Isophorone ND 0.50 0.080 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Naphthalene ND 0.50 0.14 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Nitrobenzene ND 2.0 0.14 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 N-Nitrosodimethylamine ND 0.50 0.089 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 N-Nitrosodi-n-propylamine ND 0.50 0.086 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 n-Nitrosodiphenylamine(as ND 0.50 0.085 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 diphenylamine)
Pentachlorophenol ND 2.5 1.8 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Phenanthrene ND 0.50 0.072 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Phenol ND 0.50 0.097 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Pyrene ND 0.50 0.10 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 Pyridine ND 0.50 0.24 mg/Kg 03/13/26 10:04 03/16/26 13:50 1 2,4,6-Tribromophenol (Surr) 90 20 - 135 03/16/26 13:50 1 MB MB
Surrogate
03/13/26 10:04
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
2-Fluorobiphenyl (Surr) 101 28 - 110 03/13/26 10:04 03/16/26 13:50 1 2-Fluorophenol (Surr) 96 20 - 135 03/13/26 10:04 03/16/26 13:50 1 Nitrobenzene-d5 (Surr) 97 22 - 116 03/13/26 10:04 03/16/26 13:50 1 p-Terphenyl-d14 (Surr) 99 27 - 118 03/13/26 10:04 03/16/26 13:50 1 Phenol-d6 (Surr) 92 20 - 127 03/13/26 10:04 03/16/26 13:50 1 Lab Sample ID: LCS 570-708773/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
1,2,4-Trichlorobenzene 5.00 4.361 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
87 62 - 120
D %Rec
%Rec
Limits
1,2-Dichlorobenzene 5.00 4.255 mg/Kg 85 60 - 120
Eurofins Calscience

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4659
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-708773/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
1,3-Dichlorobenzene 5.00 4.180 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
84 56 - 120
D %Rec
%Rec
Limits
1,4-Dichlorobenzene 5.00 4.250 mg/Kg 85 56 - 120
1-Methylnaphthalene 5.00 4.314 mg/Kg 86 58 - 120
2,4,5-Trichlorophenol 5.00 4.184 mg/Kg 84 54 - 121
2,4,6-Trichlorophenol 5.00 4.336 mg/Kg 87 58 - 120
2,4-Dichlorophenol 5.00 4.505 mg/Kg 90 61 - 122
2,4-Dimethylphenol 5.00 4.130 mg/Kg 83 45 - 145
2,4-Dinitrophenol 5.00 2.845 mg/Kg 57 10 - 165
2,4-Dinitrotoluene 5.00 4.641 mg/Kg 93 55 - 122
2,6-Dichlorophenol 5.00 4.346 mg/Kg 87 58 - 120
2,6-Dinitrotoluene 5.00 4.474 mg/Kg 89 59 - 120
2-Chloronaphthalene 5.00 4.173 mg/Kg 83 60 - 120
2-Chlorophenol 5.00 4.550 mg/Kg 91 59 - 130
2-Methylnaphthalene 5.00 4.253 mg/Kg 85 59 - 126
2-Methylphenol 5.00 4.423 mg/Kg 88 58 - 134
2-Nitroaniline 5.00 4.501 mg/Kg 90 54 - 120
2-Nitrophenol 5.00 4.479 mg/Kg 90 51 - 125
3,3'-Dichlorobenzidine 5.00 4.030 mg/Kg 81 40 - 120
3/4-Methylphenol 10.0 8.942 mg/Kg 89 58 - 129
3-Nitroaniline 5.00 4.291 mg/Kg 86 50 - 120
4,6-Dinitro-2-methylphenol 5.00 4.215 mg/Kg 84 27 - 148 4-Bromophenyl phenyl ether 5.00 4.586 mg/Kg 92 59 - 120 4-Chloro-3-methylphenol 5.00 4.509 mg/Kg 90 54 - 132
4-Chloroaniline 5.00 3.659 mg/Kg 73 38 - 120
4-Chlorophenyl phenyl ether 5.00 4.442 mg/Kg 89 61 - 120 4-Nitroaniline 5.00 4.515 mg/Kg 90 52 - 124
4-Nitrophenol 5.00 3.457 mg/Kg 69 29 - 130
Acenaphthene 5.00 4.327 mg/Kg 87 58 - 120
Acenaphthylene 5.00 4.384 mg/Kg 88 56 - 120
Aniline 5.00 3.764 mg/Kg 75 26 - 120
Anthracene 5.00 4.473 mg/Kg 89 61 - 120
Azobenzene 5.00 4.095 mg/Kg 82 55 - 120
Benzidine 5.00 1.615 J mg/Kg 32 10 - 120
Benzo[a]anthracene 5.00 4.605 mg/Kg 92 62 - 120
Benzo[a]pyrene 5.00 4.794 mg/Kg 96 55 - 130
Benzo[b]fluoranthene 5.00 4.701 mg/Kg 94 56 - 123
Benzo[g,h,i]perylene 5.00 4.669 mg/Kg 93 53 - 120
Benzo[k]fluoranthene 5.00 4.777 mg/Kg 96 56 - 122
Benzoic acid 5.00 2.302 J mg/Kg 46 10 - 133
Benzyl alcohol 5.00 4.370 mg/Kg 87 35 - 139
Bis(2-chloroethoxy)methane 5.00 4.127 mg/Kg 83 55 - 120 Bis(2-chloroethyl)ether 5.00 4.174 mg/Kg 83 48 - 120
bis(2 chloro-1-methylethyl) ether 5.00 4.374 mg/Kg 87 45 - 122 Bis(2-ethylhexyl) phthalate 5.00 4.848 mg/Kg 97 58 - 121 Butyl benzyl phthalate 5.00 4.793 mg/Kg 96 57 - 122
Chrysene 5.00 4.663 mg/Kg 93 59 - 120
Dibenz(a,h)anthracene 5.00 4.836 mg/Kg 97 56 - 124
Dibenzofuran 5.00 4.438 mg/Kg 89 61 - 120
Diethyl phthalate 5.00 4.561 mg/Kg 91 60 - 120
Eurofins Calscience

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4660
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-708773/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
Dimethyl phthalate 5.00 4.413 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
88 59 - 120
D %Rec
%Rec
Limits
Di-n-butyl phthalate 5.00 4.894 mg/Kg 98 60 - 120
Di-n-octyl phthalate 5.00 4.751 mg/Kg 95 58 - 127
Fluoranthene 5.00 4.659 mg/Kg 93 58 - 120
Fluorene 5.00 4.478 mg/Kg 90 60 - 120
Hexachloro-1,3-butadiene 5.00 4.292 mg/Kg 86 56 - 120
Hexachlorobenzene 5.00 4.228 mg/Kg 85 58 - 120
Hexachlorocyclopentadiene 5.00 4.073 mg/Kg 81 10 - 183
Hexachloroethane 5.00 4.100 mg/Kg 82 51 - 120
Indeno[1,2,3-cd]pyrene 5.00 4.641 mg/Kg 93 55 - 126
Isophorone 5.00 4.133 mg/Kg 83 54 - 120
Naphthalene 5.00 4.254 mg/Kg 85 58 - 120
Nitrobenzene 5.00 4.189 mg/Kg 84 53 - 120
N-Nitrosodimethylamine 5.00 4.205 mg/Kg 84 44 - 120
N-Nitrosodi-n-propylamine 5.00 4.256 mg/Kg 85 54 - 120
n-Nitrosodiphenylamine(as
diphenylamine)

5.00 5.420 mg/Kg 108 72 - 128
Pentachlorophenol 5.00 2.406 J mg/Kg 48 26 - 134
Phenanthrene 5.00 4.495 mg/Kg 90 61 - 120
Phenol 5.00 4.484 mg/Kg 90 56 - 129
Pyrene 5.00 4.812 mg/Kg 96 57 - 120
Pyridine 5.00 3.423 mg/Kg 68 27 - 120
2,4,6-Tribromophenol (Surr) 20 - 135
Surrogate
92 LCS LCS
%Recovery Qualifier Limits
2-Fluorobiphenyl (Surr) 86 28 - 110
2-Fluorophenol (Surr) 94 20 - 135
Nitrobenzene-d5 (Surr) 81 22 - 116
p-Terphenyl-d14 (Surr) 94 27 - 118
Phenol-d6 (Surr) 92 20 - 127
Lab Sample ID: LCSD 570-708773/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
1,2,4-Trichlorobenzene 5.00 4.327 mg/Kg 1 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
87 62 - 120
D %Rec
%Rec
Limits
1,2-Dichlorobenzene 5.00 4.263 mg/Kg 85 60 - 120 0 20
1,3-Dichlorobenzene 5.00 4.166 mg/Kg 83 56 - 120 0 20
1,4-Dichlorobenzene 5.00 4.250 mg/Kg 85 56 - 120 0 20
1-Methylnaphthalene 5.00 4.259 mg/Kg 85 58 - 120 1 20
2,4,5-Trichlorophenol 5.00 4.098 mg/Kg 82 54 - 121 2 20 2,4,6-Trichlorophenol 5.00 4.239 mg/Kg 85 58 - 120 2 20 2,4-Dichlorophenol 5.00 4.424 mg/Kg 88 61 - 122 2 20
2,4-Dimethylphenol 5.00 4.129 mg/Kg 83 45 - 145 0 20
2,4-Dinitrophenol 5.00 2.986 mg/Kg 60 10 - 165 5 35
2,4-Dinitrotoluene 5.00 4.494 mg/Kg 90 55 - 122 3 20
2,6-Dichlorophenol 5.00 4.256 mg/Kg 85 58 - 120 2 20
2,6-Dinitrotoluene 5.00 4.396 mg/Kg 88 59 - 120 2 21
Eurofins Calscience

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4661
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-708773/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
2-Chloronaphthalene 5.00 4.164 mg/Kg 0 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
83 60 - 120
D %Rec
%Rec
Limits
2-Chlorophenol 5.00 4.522 mg/Kg 90 59 - 130 1 20
2-Methylnaphthalene 5.00 4.220 mg/Kg 84 59 - 126 1 20
2-Methylphenol 5.00 4.402 mg/Kg 88 58 - 134 0 20
2-Nitroaniline 5.00 4.611 mg/Kg 92 54 - 120 2 20
2-Nitrophenol 5.00 4.407 mg/Kg 88 51 - 125 2 20
3,3'-Dichlorobenzidine 5.00 3.946 mg/Kg 79 40 - 120 2 22 3/4-Methylphenol 10.0 8.815 mg/Kg 88 58 - 129 1 20
3-Nitroaniline 5.00 4.275 mg/Kg 86 50 - 120 0 21
4,6-Dinitro-2-methylphenol 5.00 4.090 mg/Kg 82 27 - 148 3 23 4-Bromophenyl phenyl ether 5.00 4.461 mg/Kg 89 59 - 120 3 20 4-Chloro-3-methylphenol 5.00 4.352 mg/Kg 87 54 - 132 4 47 4-Chloroaniline 5.00 3.768 mg/Kg 75 38 - 120 3 26
4-Chlorophenyl phenyl ether 5.00 4.353 mg/Kg 87 61 - 120 2 20 4-Nitroaniline 5.00 4.533 mg/Kg 91 52 - 124 0 22
4-Nitrophenol 5.00 3.261 mg/Kg 65 29 - 130 6 51
Acenaphthene 5.00 4.233 mg/Kg 85 58 - 120 2 20
Acenaphthylene 5.00 4.274 mg/Kg 85 56 - 120 3 20
Aniline 5.00 3.885 mg/Kg 78 26 - 120 3 28
Anthracene 5.00 4.338 mg/Kg 87 61 - 120 3 20
Azobenzene 5.00 4.021 mg/Kg 80 55 - 120 2 20
Benzidine 5.00 1.828 J mg/Kg 37 10 - 120 12 60
Benzo[a]anthracene 5.00 4.342 mg/Kg 87 62 - 120 6 20
Benzo[a]pyrene 5.00 4.617 mg/Kg 92 55 - 130 4 20
Benzo[b]fluoranthene 5.00 4.609 mg/Kg 92 56 - 123 2 20
Benzo[g,h,i]perylene 5.00 4.544 mg/Kg 91 53 - 120 3 20
Benzo[k]fluoranthene 5.00 4.562 mg/Kg 91 56 - 122 5 21
Benzoic acid 5.00 2.565 mg/Kg 51 10 - 133 11 50
Benzyl alcohol 5.00 4.343 mg/Kg 87 35 - 139 1 25
Bis(2-chloroethoxy)methane 5.00 4.064 mg/Kg 81 55 - 120 2 20 Bis(2-chloroethyl)ether 5.00 4.143 mg/Kg 83 48 - 120 1 20 bis(2 chloro-1-methylethyl) ether 5.00 4.326 mg/Kg 87 45 - 122 1 20 Bis(2-ethylhexyl) phthalate 5.00 4.623 mg/Kg 92 58 - 121 5 20 Butyl benzyl phthalate 5.00 4.480 mg/Kg 90 57 - 122 7 21 Chrysene 5.00 4.359 mg/Kg 87 59 - 120 7 20
Dibenz(a,h)anthracene 5.00 4.826 mg/Kg 97 56 - 124 0 20 Dibenzofuran 5.00 4.362 mg/Kg 87 61 - 120 2 20
Diethyl phthalate 5.00 4.489 mg/Kg 90 60 - 120 2 20
Dimethyl phthalate 5.00 4.309 mg/Kg 86 59 - 120 2 20
Di-n-butyl phthalate 5.00 4.648 mg/Kg 93 60 - 120 5 20
Di-n-octyl phthalate 5.00 4.517 mg/Kg 90 58 - 127 5 20
Fluoranthene 5.00 4.486 mg/Kg 90 58 - 120 4 20
Fluorene 5.00 4.399 mg/Kg 88 60 - 120 2 20
Hexachloro-1,3-butadiene 5.00 4.190 mg/Kg 84 56 - 120 2 20 Hexachlorobenzene 5.00 4.134 mg/Kg 83 58 - 120 2 24
Hexachlorocyclopentadiene 5.00 3.995 mg/Kg 80 10 - 183 2 23 Hexachloroethane 5.00 4.035 mg/Kg 81 51 - 120 2 20
Indeno[1,2,3-cd]pyrene 5.00 4.543 mg/Kg 91 55 - 126 2 20 Isophorone 5.00 4.064 mg/Kg 81 54 - 120 2 20
Eurofins Calscience

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4662
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-708773/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 709875 Prep Batch: 708773
Naphthalene 5.00 4.180 mg/Kg 2 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
84 58 - 120
D %Rec
%Rec
Limits
Nitrobenzene 5.00 4.094 mg/Kg 82 53 - 120 2 20
N-Nitrosodimethylamine 5.00 4.333 mg/Kg 87 44 - 120 3 21 N-Nitrosodi-n-propylamine 5.00 4.283 mg/Kg 86 54 - 120 1 20 n-Nitrosodiphenylamine(as
diphenylamine)

5.00 5.327 mg/Kg 107 72 - 128 2 20
Pentachlorophenol 5.00 2.294 J mg/Kg 46 26 - 134 5 20
Phenanthrene 5.00 4.359 mg/Kg 87 61 - 120 3 20
Phenol 5.00 4.425 mg/Kg 88 56 - 129 1 20
Pyrene 5.00 4.553 mg/Kg 91 57 - 120 6 21
Pyridine 5.00 3.472 mg/Kg 69 27 - 120 1 23
2,4,6-Tribromophenol (Surr) 20 - 135
Surrogate
88 LCSD LCSD
%Recovery Qualifier Limits
2-Fluorobiphenyl (Surr) 82 28 - 110
2-Fluorophenol (Surr) 93 20 - 135
Nitrobenzene-d5 (Surr) 78 22 - 116
p-Terphenyl-d14 (Surr) 89 27 - 118
Phenol-d6 (Surr) 90 20 - 127
Method: 8015C - Gasoline Range Organics (GRO) (GC)
Lab Sample ID: MB 570-705503/3-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705367 Prep Batch: 705503
RL MDL
Gasoline Range Organics (C4-C12) ND 0.10 0.044 mg/Kg 03/06/26 09:13 03/06/26 11:31 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 93 42 - 126 03/06/26 11:31 1 MB MB
Surrogate
03/06/26 09:13
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
Lab Sample ID: LCS 570-705503/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705367 Prep Batch: 705503
Gasoline Range Organics
(C4-C13)

1.97 1.934 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
98 70 - 124
D %Rec
%Rec
Limits
4-Bromofluorobenzene (Surr) 42 - 126
Surrogate
96 LCS LCS
%Recovery Qualifier Limits
Eurofins Calscience

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4663
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8015C - Gasoline Range Organics (GRO) (GC) (Continued) Lab Sample ID: LCS 570-705503/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705367 Prep Batch: 705503
Gasoline Range Organics
(C4-C13)

1.97 1.947 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
99 70 - 124
D %Rec
%Rec
Limits
4-Bromofluorobenzene (Surr) 42 - 126
Surrogate
98 LCS LCS
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-3 MS Client Sample ID: EKI-SB-10-5.0 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705367 Prep Batch: 705503
Gasoline Range Organics
(C4-C13)
ND 2.03 2.035 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 100 48 - 114
D %Rec
%Rec
Limits
4-Bromofluorobenzene (Surr) 42 - 126
Surrogate
91 MS MS
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-3 MSD Client Sample ID: EKI-SB-10-5.0 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705367 Prep Batch: 705503
Gasoline Range Organics
(C4-C13)
ND 2.03 2.005 mg/Kg 1 23
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
☼ 99 48 - 114
D %Rec
%Rec
Limits
4-Bromofluorobenzene (Surr) 42 - 126
Surrogate
73 MSD MSD
%Recovery Qualifier Limits
Lab Sample ID: MB 570-705961/3-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705925 Prep Batch: 705961
RL MDL
Gasoline Range Organics (C4-C12) ND 0.099 0.044 mg/Kg 03/07/26 11:46 03/07/26 13:26 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 87 42 - 126 03/07/26 13:26 1 MB MB
Surrogate
03/07/26 11:46
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
Lab Sample ID: LCS 570-705961/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705925 Prep Batch: 705961
Gasoline Range Organics
(C4-C13)

1.98 1.871 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
94 70 - 124
D %Rec
%Rec
Limits
4-Bromofluorobenzene (Surr) 42 - 126
Surrogate
78 LCS LCS
%Recovery Qualifier Limits
Eurofins Calscience

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4664
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8015C - Gasoline Range Organics (GRO) (GC)
Lab Sample ID: LCSD 570-705961/2-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705925 Prep Batch: 705961
Gasoline Range Organics
(C4-C13)

1.98 1.989 mg/Kg 6 18
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
100 70 - 124
D %Rec
%Rec
Limits
4-Bromofluorobenzene (Surr) 42 - 126
Surrogate
88 LCSD LCSD
%Recovery Qualifier Limits
Method: 8015C - Diesel Range Organics (DRO) (GC)
Lab Sample ID: MB 570-704828/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706273 Prep Batch: 704828
RL MDL
DRO (C13-C22) ND 5.0 4.4 mg/Kg 03/05/26 10:16 03/09/26 10:47 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac ORO (C23-C40) ND 25 4.4 mg/Kg 03/05/26 10:16 03/09/26 10:47 1 n-Octacosane (Surr) 79 29 - 160 03/09/26 10:47 1
MB MB
Surrogate
03/05/26 10:16
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
Lab Sample ID: LCS 570-704828/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706273 Prep Batch: 704828
Diesel Range Organics
[C10-C28]
400 402.2 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
101 70 - 130
D %Rec
%Rec
Limits
n-Octacosane (Surr) 29 - 160
Surrogate
84 LCS LCS
%Recovery Qualifier Limits
Lab Sample ID: LCSD 570-704828/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706273 Prep Batch: 704828
Diesel Range Organics
[C10-C28]
400 443.2 mg/Kg 10 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
111 70 - 130
D %Rec
%Rec
Limits
n-Octacosane (Surr) 29 - 160
Surrogate
78 LCSD LCSD
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-1 MS Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706273 Prep Batch: 704828
Diesel Range Organics
[C10-C28]
100 430 593.5 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 114 43 - 165
D %Rec
%Rec
Limits
Eurofins Calscience

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4665
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8015C - Diesel Range Organics (DRO) (GC) (Continued) Lab Sample ID: 570-269712-1 MS Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706273 Prep Batch: 704828
n-Octacosane (Surr) 29 - 160
Surrogate
79 MS MS
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-1 MSD Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706273 Prep Batch: 704828
Diesel Range Organics
[C10-C28]
100 432 547.7 mg/Kg 8 35
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
☼ 103 43 - 165
D %Rec
%Rec
Limits
n-Octacosane (Surr) 29 - 160
Surrogate
85 MSD MSD
%Recovery Qualifier Limits
Method: 8081B - Organochlorine Pesticides (GC)
Lab Sample ID: MB 570-704150/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704531 Prep Batch: 704150
RL MDL
4,4'-DDD ND 5.0 0.72 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 4,4'-DDE ND 5.0 0.69 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 4,4'-DDT ND 5.0 1.2 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Aldrin ND 5.0 1.6 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 alpha-BHC ND 5.0 0.59 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 alpha-Chlordane ND 5.0 0.56 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 beta-BHC ND 5.0 0.90 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Chlordane ND 25 4.1 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 delta-BHC ND 5.0 0.93 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Dieldrin ND 5.0 0.55 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Endosulfan I ND 5.0 1.1 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Endosulfan II ND 5.0 0.55 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Endosulfan sulfate ND 5.0 0.63 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Endrin ND 5.0 0.67 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Endrin aldehyde ND 5.0 3.3 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Endrin ketone ND 5.0 0.90 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 gamma-Chlordane ND 5.0 3.4 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 gamma-BHC (Lindane) ND 5.0 0.51 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Heptachlor ND 5.0 0.60 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Heptachlor epoxide ND 5.0 0.54 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Methoxychlor ND 5.0 1.2 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Toxaphene ND 25 15 ug/Kg 03/04/26 09:02 03/04/26 21:50 1 Tetrachloro-m-xylene (Surr) 96 38 - 148 03/04/26 21:50 1 MB MB
Surrogate
03/04/26 09:02
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
DCB Decachlorobiphenyl (Surr) 109 37 - 151 03/04/26 09:02 03/04/26 21:50 1 Eurofins Calscience

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4666
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8081B - Organochlorine Pesticides (GC) (Continued) Lab Sample ID: LCS 570-704150/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704150
4,4'-DDD 25.0 21.11 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
84 54 - 154
D %Rec
%Rec
Limits
4,4'-DDE 25.0 19.84 ug/Kg 79 51 - 149
4,4'-DDT 25.0 21.54 ug/Kg 86 39 - 152
Aldrin 25.0 18.18 ug/Kg 73 52 - 138
alpha-BHC 25.0 18.14 ug/Kg 73 51 - 140
alpha-Chlordane 25.0 19.21 ug/Kg 77 53 - 141
beta-BHC 25.0 18.27 ug/Kg 73 53 - 141
delta-BHC 25.0 14.59 ug/Kg 58 20 - 132
Dieldrin 25.0 19.63 ug/Kg 79 52 - 144
Endosulfan I 25.0 18.42 ug/Kg 74 49 - 139
Endosulfan II 25.0 18.76 ug/Kg 75 51 - 150
Endosulfan sulfate 25.0 18.30 ug/Kg 73 45 - 139
Endrin 25.0 19.04 ug/Kg 76 53 - 151
Endrin aldehyde 25.0 24.77 ug/Kg 99 31 - 146
Endrin ketone 25.0 20.70 ug/Kg 83 51 - 150
gamma-Chlordane 25.0 18.19 ug/Kg 73 46 - 156
gamma-BHC (Lindane) 25.0 19.63 ug/Kg 79 53 - 141
Heptachlor 25.0 19.55 ug/Kg 78 52 - 144
Heptachlor epoxide 25.0 18.91 ug/Kg 76 54 - 141
Methoxychlor 25.0 22.05 ug/Kg 88 47 - 148
Tetrachloro-m-xylene (Surr) 38 - 148
Surrogate
84 LCS LCS
%Recovery Qualifier Limits
DCB Decachlorobiphenyl (Surr) 93 37 - 151
Lab Sample ID: LCSD 570-704150/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704150
4,4'-DDD 25.0 17.91 ug/Kg 16 30
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
72 54 - 154
D %Rec
%Rec
Limits
4,4'-DDE 25.0 17.08 ug/Kg 68 51 - 149 15 28
4,4'-DDT 25.0 18.62 ug/Kg 74 39 - 152 15 31
Aldrin 25.0 16.26 ug/Kg 65 52 - 138 11 30
alpha-BHC 25.0 16.01 ug/Kg 64 51 - 140 12 29
alpha-Chlordane 25.0 16.09 ug/Kg 64 53 - 141 18 28
beta-BHC 25.0 15.97 ug/Kg 64 53 - 141 13 29
delta-BHC 25.0 12.03 ug/Kg 48 20 - 132 19 40
Dieldrin 25.0 16.66 ug/Kg 67 52 - 144 16 28
Endosulfan I 25.0 15.83 ug/Kg 63 49 - 139 15 28
Endosulfan II 25.0 16.80 ug/Kg 67 51 - 150 11 29
Endosulfan sulfate 25.0 15.50 ug/Kg 62 45 - 139 17 30
Endrin 25.0 16.86 ug/Kg 67 53 - 151 12 29
Endrin aldehyde 25.0 19.94 ug/Kg 80 31 - 146 22 40
Endrin ketone 25.0 17.78 ug/Kg 71 51 - 150 15 30
gamma-Chlordane 25.0 15.47 ug/Kg 62 46 - 156 16 39
gamma-BHC (Lindane) 25.0 16.59 ug/Kg 66 53 - 141 17 29
Heptachlor 25.0 16.18 ug/Kg 65 52 - 144 19 29
Eurofins Calscience

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4667
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8081B - Organochlorine Pesticides (GC) (Continued) Lab Sample ID: LCSD 570-704150/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704150
Heptachlor epoxide 25.0 16.21 ug/Kg 15 29
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
65 54 - 141
D %Rec
%Rec
Limits
Methoxychlor 25.0 18.28 ug/Kg 73 47 - 148 19 29
Tetrachloro-m-xylene (Surr) 38 - 148
Surrogate
75 LCSD LCSD
%Recovery Qualifier Limits
DCB Decachlorobiphenyl (Surr) 78 37 - 151
Lab Sample ID: MB 570-704155/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704155
RL MDL
4,4'-DDD ND 5.0 0.72 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 4,4'-DDE ND 5.0 0.69 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 4,4'-DDT ND 5.0 1.2 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Aldrin ND 5.0 1.6 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 alpha-BHC ND 5.0 0.59 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 alpha-Chlordane ND 5.0 0.56 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 beta-BHC ND 5.0 0.90 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Chlordane ND 25 4.1 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 delta-BHC ND 5.0 0.93 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Dieldrin ND 5.0 0.55 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Endosulfan I ND 5.0 1.1 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Endosulfan II ND 5.0 0.55 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Endosulfan sulfate ND 5.0 0.63 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Endrin ND 5.0 0.67 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Endrin aldehyde ND 5.0 3.3 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Endrin ketone ND 5.0 0.90 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 gamma-Chlordane ND 5.0 3.4 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 gamma-BHC (Lindane) ND 5.0 0.51 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Heptachlor ND 5.0 0.60 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Heptachlor epoxide ND 5.0 0.54 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Methoxychlor ND 5.0 1.2 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Toxaphene ND 25 15 ug/Kg 03/04/26 09:17 03/05/26 21:58 1 Tetrachloro-m-xylene (Surr) 86 38 - 148 03/05/26 21:58 1 MB MB
Surrogate
03/04/26 09:17
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
DCB Decachlorobiphenyl (Surr) 93 37 - 151 03/04/26 09:17 03/05/26 21:58 1 Lab Sample ID: LCS 570-704155/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704155
4,4'-DDD 25.0 20.93 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
84 54 - 154
D %Rec
%Rec
Limits
4,4'-DDE 25.0 20.81 ug/Kg 83 51 - 149
4,4'-DDT 25.0 21.58 ug/Kg 86 39 - 152
Aldrin 25.0 20.02 ug/Kg 80 52 - 138
Eurofins Calscience

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4668
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8081B - Organochlorine Pesticides (GC) (Continued) Lab Sample ID: LCS 570-704155/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704155
alpha-BHC 25.0 19.98 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
80 51 - 140
D %Rec
%Rec
Limits
alpha-Chlordane 25.0 20.29 ug/Kg 81 53 - 141
beta-BHC 25.0 20.66 ug/Kg 83 53 - 141
delta-BHC 25.0 14.94 ug/Kg 60 20 - 132
Dieldrin 25.0 20.70 ug/Kg 83 52 - 144
Endosulfan I 25.0 20.07 ug/Kg 80 49 - 139
Endosulfan II 25.0 20.18 ug/Kg 81 51 - 150
Endosulfan sulfate 25.0 19.48 ug/Kg 78 45 - 139
Endrin 25.0 20.27 ug/Kg 81 53 - 151
Endrin aldehyde 25.0 21.50 ug/Kg 86 31 - 146
Endrin ketone 25.0 20.19 ug/Kg 81 51 - 150
gamma-Chlordane 25.0 19.78 ug/Kg 79 46 - 156
gamma-BHC (Lindane) 25.0 20.84 ug/Kg 83 53 - 141
Heptachlor 25.0 20.26 ug/Kg 81 52 - 144
Heptachlor epoxide 25.0 20.18 ug/Kg 81 54 - 141
Methoxychlor 25.0 20.99 ug/Kg 84 47 - 148
Tetrachloro-m-xylene (Surr) 38 - 148
Surrogate
94 LCS LCS
%Recovery Qualifier Limits
DCB Decachlorobiphenyl (Surr) 103 37 - 151
Lab Sample ID: LCSD 570-704155/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704155
4,4'-DDD 25.0 21.02 ug/Kg 0 30
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
84 54 - 154
D %Rec
%Rec
Limits
4,4'-DDE 25.0 20.97 ug/Kg 84 51 - 149 1 28
4,4'-DDT 25.0 21.61 ug/Kg 86 39 - 152 0 31
Aldrin 25.0 20.17 ug/Kg 81 52 - 138 1 30
alpha-BHC 25.0 20.14 ug/Kg 81 51 - 140 1 29
alpha-Chlordane 25.0 20.55 ug/Kg 82 53 - 141 1 28
beta-BHC 25.0 20.79 ug/Kg 83 53 - 141 1 29
delta-BHC 25.0 15.00 ug/Kg 60 20 - 132 0 40
Dieldrin 25.0 20.82 ug/Kg 83 52 - 144 1 28
Endosulfan I 25.0 20.32 ug/Kg 81 49 - 139 1 28
Endosulfan II 25.0 20.21 ug/Kg 81 51 - 150 0 29
Endosulfan sulfate 25.0 19.55 ug/Kg 78 45 - 139 0 30
Endrin 25.0 20.38 ug/Kg 82 53 - 151 1 29
Endrin aldehyde 25.0 22.02 ug/Kg 88 31 - 146 2 40
Endrin ketone 25.0 20.19 ug/Kg 81 51 - 150 0 30
gamma-Chlordane 25.0 19.97 ug/Kg 80 46 - 156 1 39
gamma-BHC (Lindane) 25.0 20.97 ug/Kg 84 53 - 141 1 29
Heptachlor 25.0 20.43 ug/Kg 82 52 - 144 1 29
Heptachlor epoxide 25.0 20.41 ug/Kg 82 54 - 141 1 29
Methoxychlor 25.0 21.07 ug/Kg 84 47 - 148 0 29
Eurofins Calscience

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4669
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8081B - Organochlorine Pesticides (GC) (Continued) Lab Sample ID: LCSD 570-704155/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704996 Prep Batch: 704155
Tetrachloro-m-xylene (Surr) 38 - 148
Surrogate
95 LCSD LCSD
%Recovery Qualifier Limits
DCB Decachlorobiphenyl (Surr) 102 37 - 151
Method: 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique
Lab Sample ID: MB 570-704317/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 710088 Prep Batch: 704317
RL MDL
Azinphos-methyl ND 0.50 0.37 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Bolstar ND 0.50 0.25 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Chlorpyrifos ND 0.50 0.12 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Coumaphos ND 0.50 0.20 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Demeton-o/s ND 1.0 0.27 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Diazinon ND 0.50 0.10 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Dichlorvos ND 0.50 0.45 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Disulfoton ND 0.50 0.12 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Ethoprop ND 0.50 0.11 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Fensulfothion ND 0.50 0.25 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Fenthion ND 0.50 0.13 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Merphos ND 0.50 0.22 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Methyl parathion ND 0.50 0.25 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Mevinphos ND 0.50 0.21 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Naled ND 4.0 2.8 mg/Kg 03/04/26 12:36 03/18/26 05:21 1
Phorate ND 0.50 0.13 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Ronnel ND 0.50 0.14 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Stirophos ND 2.0 0.14 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Tokuthion ND 0.50 0.13 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Trichloronate ND 0.50 0.12 mg/Kg 03/04/26 12:36 03/18/26 05:21 1 Tributylphosphate 100 20 - 158 03/18/26 05:21 1
MB MB
Surrogate
03/04/26 12:36
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
Lab Sample ID: LCS 570-704317/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 710088 Prep Batch: 704317
Azinphos-methyl 2.00 2.717 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
136 59 - 156
D %Rec
%Rec
Limits
Bolstar 2.00 2.198 mg/Kg 110 45 - 145
Chlorpyrifos 2.00 2.115 mg/Kg 106 42 - 139
Coumaphos 2.00 2.199 mg/Kg 110 64 - 149
Diazinon 2.00 2.185 mg/Kg 109 36 - 149
Disulfoton 2.00 2.188 mg/Kg 109 45 - 132
Ethoprop 2.00 2.384 mg/Kg 119 41 - 138
Fensulfothion 2.00 2.253 mg/Kg 113 53 - 151
Eurofins Calscience

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4670
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique (Continued)
Lab Sample ID: LCS 570-704317/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 710088 Prep Batch: 704317
Fenthion 2.00 2.016 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
101 49 - 150
D %Rec
%Rec
Limits
Merphos 2.00 2.243 mg/Kg 112 20 - 180
Methyl parathion 2.00 2.122 mg/Kg 106 48 - 149
Phorate 2.00 2.334 mg/Kg 117 42 - 137
Ronnel 2.00 2.044 mg/Kg 102 45 - 141
Stirophos 2.00 2.237 mg/Kg 112 43 - 166
Tokuthion 2.00 2.132 mg/Kg 107 50 - 131
Trichloronate 2.00 2.333 mg/Kg 117 45 - 138
Tributylphosphate 20 - 158
Surrogate
111

LCS LCS
%Recovery Qualifier Limits
Lab Sample ID: LCSD 570-704317/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 710088 Prep Batch: 704317
Azinphos-methyl 2.00 2.808 mg/Kg 3 27
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
140 59 - 156
D %Rec
%Rec
Limits
Bolstar 2.00 2.350 mg/Kg 118 45 - 145 7 24
Chlorpyrifos 2.00 2.261 mg/Kg 113 42 - 139 7 28
Coumaphos 2.00 2.368 mg/Kg 118 64 - 149 7 26
Diazinon 2.00 2.259 mg/Kg 113 36 - 149 3 28
Disulfoton 2.00 2.191 mg/Kg 110 45 - 132 0 27
Ethoprop 2.00 2.482 mg/Kg 124 41 - 138 4 26
Fensulfothion 2.00 2.377 mg/Kg 119 53 - 151 5 23
Fenthion 2.00 2.349 mg/Kg 117 49 - 150 15 30
Merphos 2.00 2.365 mg/Kg 118 20 - 180 5 30
Methyl parathion 2.00 2.325 mg/Kg 116 48 - 149 9 30
Phorate 2.00 2.353 mg/Kg 118 42 - 137 1 29
Ronnel 2.00 2.241 mg/Kg 112 45 - 141 9 30
Stirophos 2.00 2.398 mg/Kg 120 43 - 166 7 25
Tokuthion 2.00 2.225 mg/Kg 111 50 - 131 4 20
Trichloronate 2.00 2.553 mg/Kg 128 45 - 138 9 30
Tributylphosphate 20 - 158
Surrogate
110

LCSD LCSD
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-4 MS Client Sample ID: EKI-SB-1-5.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 710088 Prep Batch: 704317
Azinphos-methyl ND 1.99 2.341 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
118 20 - 180
D %Rec
%Rec
Limits
Bolstar ND 1.99 1.621 mg/Kg 81 26 - 157
Chlorpyrifos ND 1.99 1.589 mg/Kg 80 21 - 153
Coumaphos ND 1.99 1.664 mg/Kg 84 33 - 179
Diazinon ND 1.99 1.602 mg/Kg 80 20 - 157
Eurofins Calscience

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4671
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8141B - Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique (Continued)
Lab Sample ID: 570-269712-4 MS Client Sample ID: EKI-SB-1-5.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 710088 Prep Batch: 704317
Disulfoton ND 1.99 1.586 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
80 20 - 147
D %Rec
%Rec
Limits
Ethoprop ND 1.99 1.814 mg/Kg 91 20 - 147
Fensulfothion ND 1.99 1.631 mg/Kg 82 22 - 169
Fenthion ND 1.99 1.559 mg/Kg 78 24 - 170
Merphos ND 1.99 1.655 mg/Kg 83 20 - 180
Methyl parathion ND 1.99 1.587 mg/Kg 80 21 - 174
Phorate ND 1.99 1.726 mg/Kg 87 20 - 146
Ronnel ND 1.99 1.546 mg/Kg 78 20 - 159
Stirophos ND 1.99 1.740 J mg/Kg 87 20 - 180
Tokuthion ND 1.99 1.579 mg/Kg 79 26 - 149
Trichloronate ND 1.99 1.723 mg/Kg 86 24 - 153
Tributylphosphate 20 - 158
Surrogate
84 MS MS
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-4 MSD Client Sample ID: EKI-SB-1-5.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 710088 Prep Batch: 704317
Azinphos-methyl ND 1.97 2.287 mg/Kg 2 40
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
116 20 - 180
D %Rec
%Rec
Limits
Bolstar ND 1.97 1.758 mg/Kg 89 26 - 157 8 40
Chlorpyrifos ND 1.97 1.745 mg/Kg 88 21 - 153 9 40
Coumaphos ND 1.97 1.813 mg/Kg 92 33 - 179 9 40
Diazinon ND 1.97 1.737 mg/Kg 88 20 - 157 8 40
Disulfoton ND 1.97 1.769 mg/Kg 90 20 - 147 11 40
Ethoprop ND 1.97 1.910 mg/Kg 97 20 - 147 5 40
Fensulfothion ND 1.97 1.787 mg/Kg 91 22 - 169 9 40
Fenthion ND 1.97 1.766 mg/Kg 89 24 - 170 12 40
Merphos ND 1.97 1.801 mg/Kg 91 20 - 180 8 40
Methyl parathion ND 1.97 1.735 mg/Kg 88 21 - 174 9 40
Phorate ND 1.97 1.854 mg/Kg 94 20 - 146 7 40
Ronnel ND 1.97 1.695 mg/Kg 86 20 - 159 9 40
Stirophos ND 1.97 2.035 mg/Kg 103 20 - 180 16 40
Tokuthion ND 1.97 1.720 mg/Kg 87 26 - 149 9 40
Trichloronate ND 1.97 1.926 mg/Kg 98 24 - 153 11 40
Tributylphosphate 20 - 158
Surrogate
90 MSD MSD
%Recovery Qualifier Limits
Eurofins Calscience

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4672
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8321B - Herbicides (LC/MS)
Lab Sample ID: MB 570-703587/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704303 Prep Batch: 703587
RL MDL
2,4,5-T ND 10 3.6 ug/Kg 03/03/26 10:21 03/04/26 12:39 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 2,4,5-TP (Silvex) ND 10 3.2 ug/Kg 03/03/26 10:21 03/04/26 12:39 1 2,4-D ND 13 3.2 ug/Kg 03/03/26 10:21 03/04/26 12:39 1
2,4-DB ND 13 1.7 ug/Kg 03/03/26 10:21 03/04/26 12:39 1
Dalapon ND 13 1.6 ug/Kg 03/03/26 10:21 03/04/26 12:39 1 Dicamba ND 10 4.3 ug/Kg 03/03/26 10:21 03/04/26 12:39 1 Dichlorprop ND 13 3.2 ug/Kg 03/03/26 10:21 03/04/26 12:39 1 Dinoseb ND 13 4.4 ug/Kg 03/03/26 10:21 03/04/26 12:39 1 MCPA ND 13 3.4 ug/Kg 03/03/26 10:21 03/04/26 12:39 1
MCPP ND 13 3.3 ug/Kg 03/03/26 10:21 03/04/26 12:39 1
2,4-Dichlorophenylacetic acid (Surr) 89 32 - 160 03/04/26 12:39 1 MB MB
Surrogate
03/03/26 10:21
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
Lab Sample ID: LCS 570-703587/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704303 Prep Batch: 703587
2,4,5-T 25.0 22.49 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
90 63 - 136
D %Rec
%Rec
Limits
2,4,5-TP (Silvex) 25.0 26.43 ug/Kg 106 59 - 120
2,4-D 25.0 23.08 ug/Kg 92 63 - 127
2,4-DB 25.0 22.46 ug/Kg 90 55 - 130
Dalapon 25.0 21.65 ug/Kg 87 62 - 129
Dicamba 25.0 26.47 ug/Kg 106 76 - 127
Dichlorprop 25.0 25.71 ug/Kg 103 60 - 120
Dinoseb 25.0 21.16 ug/Kg 85 35 - 182
MCPA 25.0 23.82 ug/Kg 95 72 - 120
MCPP 25.0 26.39 ug/Kg 106 69 - 120
2,4-Dichlorophenylacetic acid
(Surr)
32 - 160
Surrogate
117

LCS LCS
%Recovery Qualifier Limits
Lab Sample ID: LCSD 570-703587/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704303 Prep Batch: 703587
2,4,5-T 25.0 23.56 ug/Kg 5 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
94 63 - 136
D %Rec
%Rec
Limits
2,4,5-TP (Silvex) 25.0 27.27 ug/Kg 109 59 - 120 3 20
2,4-D 25.0 24.86 ug/Kg 99 63 - 127 7 20
2,4-DB 25.0 23.08 ug/Kg 92 55 - 130 3 20
Dalapon 25.0 22.98 ug/Kg 92 62 - 129 6 26
Dicamba 25.0 28.00 ug/Kg 112 76 - 127 6 20
Dichlorprop 25.0 27.28 ug/Kg 109 60 - 120 6 20
Dinoseb 25.0 20.71 ug/Kg 83 35 - 182 2 30
MCPA 25.0 25.93 ug/Kg 104 72 - 120 9 20
Eurofins Calscience

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4673
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8321B - Herbicides (LC/MS) (Continued)
Lab Sample ID: LCSD 570-703587/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704303 Prep Batch: 703587
MCPP 25.0 28.14 ug/Kg 6 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
113 69 - 120
D %Rec
%Rec
Limits
2,4-Dichlorophenylacetic acid
(Surr)
32 - 160
Surrogate
114

LCSD LCSD
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-4 MS Client Sample ID: EKI-SB-1-5.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704303 Prep Batch: 703587
2,4,5-T ND 24.9 22.75 ug/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
91 20 - 155
D %Rec
%Rec
Limits
2,4,5-TP (Silvex) ND 24.9 26.18 ug/Kg 105 20 - 137
2,4-D ND 24.9 24.38 ug/Kg 98 20 - 145
2,4-DB ND 24.9 21.48 ug/Kg 86 20 - 148
Dalapon ND 24.9 21.74 ug/Kg 87 33 - 138
Dicamba ND 24.9 27.50 ug/Kg 111 44 - 149
Dichlorprop ND 24.9 26.18 ug/Kg 105 20 - 131
Dinoseb ND 24.9 18.18 ug/Kg 73 20 - 185
MCPA ND 24.9 24.62 ug/Kg 99 20 - 133
MCPP ND 24.9 27.14 ug/Kg 109 24 - 134
2,4-Dichlorophenylacetic acid
(Surr)
32 - 160
Surrogate
107
MS MS
%Recovery Qualifier Limits
Lab Sample ID: 570-269712-4 MSD Client Sample ID: EKI-SB-1-5.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704303 Prep Batch: 703587
2,4,5-T ND 24.5 21.96 ug/Kg 4 30
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
90 20 - 155
D %Rec
%Rec
Limits
2,4,5-TP (Silvex) ND 24.5 26.27 ug/Kg 107 20 - 137 0 30 2,4-D ND 24.5 23.57 ug/Kg 96 20 - 145 3 30
2,4-DB ND 24.5 20.45 ug/Kg 83 20 - 148 5 27
Dalapon ND 24.5 21.82 ug/Kg 89 33 - 138 0 20
Dicamba ND 24.5 26.89 ug/Kg 110 44 - 149 2 20
Dichlorprop ND 24.5 25.24 ug/Kg 103 20 - 131 4 30
Dinoseb ND 24.5 18.52 ug/Kg 76 20 - 185 2 30
MCPA ND 24.5 24.31 ug/Kg 99 20 - 133 1 30
MCPP ND 24.5 26.97 ug/Kg 110 24 - 134 1 30
2,4-Dichlorophenylacetic acid
(Surr)
32 - 160
Surrogate
107

MSD MSD
%Recovery Qualifier Limits
Eurofins Calscience

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4674
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 6020B - Metals (ICP/MS)
Lab Sample ID: MB 570-704829/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705814 Prep Batch: 704829
RL MDL
Antimony ND 0.541 0.316 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Arsenic ND 0.541 0.241 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Barium ND 0.541 0.354 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Beryllium ND 0.541 0.237 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Cadmium ND 0.541 0.181 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Chromium ND 0.541 0.336 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Cobalt ND 0.541 0.202 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Copper ND 0.541 0.216 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Lead ND 0.541 0.204 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Molybdenum ND 0.541 0.302 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Nickel ND 0.541 0.306 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Selenium ND 0.541 0.463 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Silver ND 1.08 0.565 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Thallium ND 0.541 0.169 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Vanadium ND 0.541 0.337 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Zinc ND 5.41 2.26 mg/Kg 03/05/26 10:16 03/06/26 23:33 5 Lab Sample ID: LCS 570-704829/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705814 Prep Batch: 704829
Antimony 210 194.0 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
93 80 - 120
D %Rec
%Rec
Limits
Arsenic 210 182.5 mg/Kg 87 80 - 120
Barium 210 182.6 mg/Kg 87 80 - 120
Beryllium 210 191.5 mg/Kg 91 80 - 120
Cadmium 210 180.5 mg/Kg 86 80 - 120
Chromium 210 188.0 mg/Kg 90 80 - 120
Cobalt 210 185.6 mg/Kg 89 80 - 120
Copper 210 195.1 mg/Kg 93 80 - 120
Lead 210 186.3 mg/Kg 89 80 - 120
Molybdenum 210 194.1 mg/Kg 93 80 - 120
Nickel 210 188.4 mg/Kg 90 80 - 120
Selenium 210 171.9 mg/Kg 82 80 - 120
Silver 105 94.83 mg/Kg 91 80 - 120
Thallium 210 184.9 mg/Kg 88 80 - 120
Vanadium 210 190.3 mg/Kg 91 80 - 120
Zinc 210 172.5 mg/Kg 82 80 - 120
Lab Sample ID: LCSD 570-704829/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705814 Prep Batch: 704829
Antimony 205 188.1 mg/Kg 3 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
92 80 - 120
D %Rec
%Rec
Limits
Arsenic 205 176.7 mg/Kg 86 80 - 120 3 20
Barium 205 182.9 mg/Kg 89 80 - 120 0 20
Beryllium 205 186.3 mg/Kg 91 80 - 120 3 20
Cadmium 205 180.0 mg/Kg 88 80 - 120 0 20
Eurofins Calscience

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4675
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 6020B - Metals (ICP/MS) (Continued)
Lab Sample ID: LCSD 570-704829/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 705814 Prep Batch: 704829
Chromium 205 182.8 mg/Kg 3 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
89 80 - 120
D %Rec
%Rec
Limits
Cobalt 205 180.0 mg/Kg 88 80 - 120 3 20
Copper 205 189.4 mg/Kg 92 80 - 120 3 20
Lead 205 178.3 mg/Kg 87 80 - 120 4 20
Molybdenum 205 187.2 mg/Kg 91 80 - 120 4 20
Nickel 205 186.4 mg/Kg 91 80 - 120 1 20
Selenium 205 170.2 mg/Kg 83 80 - 120 1 20
Silver 102 91.52 mg/Kg 89 80 - 120 4 20
Thallium 205 177.6 mg/Kg 87 80 - 120 4 20
Vanadium 205 181.0 mg/Kg 88 80 - 120 5 20
Zinc 205 169.7 mg/Kg 83 80 - 120 2 20
Lab Sample ID: MB 570-704833/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706069 Prep Batch: 704833
RL MDL
Antimony ND 0.527 0.308 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Arsenic ND 0.527 0.235 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Barium ND 0.527 0.345 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Beryllium ND 0.527 0.231 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Cadmium ND 0.527 0.177 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Chromium ND 0.527 0.327 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Cobalt ND 0.527 0.197 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Copper ND 0.527 0.210 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Lead ND 0.527 0.199 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Molybdenum ND 0.527 0.295 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Nickel ND 0.527 0.298 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Selenium ND 0.527 0.451 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Silver ND 1.05 0.551 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Thallium ND 0.527 0.165 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Vanadium ND 0.527 0.328 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Zinc ND 5.27 2.20 mg/Kg 03/05/26 10:27 03/07/26 02:31 5 Lab Sample ID: LCS 570-704833/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706069 Prep Batch: 704833
Antimony 210 201.0 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
96 80 - 120
D %Rec
%Rec
Limits
Arsenic 210 187.3 mg/Kg 89 80 - 120
Barium 210 184.4 mg/Kg 88 80 - 120
Beryllium 210 206.4 mg/Kg 98 80 - 120
Cadmium 210 181.8 mg/Kg 87 80 - 120
Chromium 210 200.5 mg/Kg 96 80 - 120
Cobalt 210 197.1 mg/Kg 94 80 - 120
Copper 210 207.7 mg/Kg 99 80 - 120
Lead 210 193.8 mg/Kg 92 80 - 120
Molybdenum 210 198.4 mg/Kg 95 80 - 120
Eurofins Calscience

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4676
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 6020B - Metals (ICP/MS) (Continued)
Lab Sample ID: LCS 570-704833/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706069 Prep Batch: 704833
Nickel 210 195.0 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
93 80 - 120
D %Rec
%Rec
Limits
Selenium 210 178.0 mg/Kg 85 80 - 120
Silver 105 98.09 mg/Kg 94 80 - 120
Thallium 210 191.7 mg/Kg 91 80 - 120
Vanadium 210 201.0 mg/Kg 96 80 - 120
Zinc 210 178.9 mg/Kg 85 80 - 120
Lab Sample ID: LCSD 570-704833/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706069 Prep Batch: 704833
Antimony 214 207.1 mg/Kg 3 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
97 80 - 120
D %Rec
%Rec
Limits
Arsenic 214 192.7 mg/Kg 90 80 - 120 3 20
Barium 214 190.3 mg/Kg 89 80 - 120 3 20
Beryllium 214 211.2 mg/Kg 99 80 - 120 2 20
Cadmium 214 188.4 mg/Kg 88 80 - 120 4 20
Chromium 214 205.4 mg/Kg 96 80 - 120 2 20
Cobalt 214 203.7 mg/Kg 95 80 - 120 3 20
Copper 214 210.7 mg/Kg 98 80 - 120 1 20
Lead 214 198.9 mg/Kg 93 80 - 120 3 20
Molybdenum 214 206.3 mg/Kg 96 80 - 120 4 20
Nickel 214 201.7 mg/Kg 94 80 - 120 3 20
Selenium 214 184.0 mg/Kg 86 80 - 120 3 20
Silver 107 100.6 mg/Kg 94 80 - 120 3 20
Thallium 214 196.3 mg/Kg 92 80 - 120 2 20
Vanadium 214 204.2 mg/Kg 95 80 - 120 2 20
Zinc 214 184.4 mg/Kg 86 80 - 120 3 20
Lab Sample ID: 570-269712-15 MS Client Sample ID: EKI-SB-1-15.0 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706069 Prep Batch: 704833
Antimony 1.45 F1 222 140.5 F1 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 63 75 - 125
D %Rec
%Rec
Limits
Arsenic 3.16 222 189.8 mg/Kg ☼ 84 75 - 125
Barium 92.2 222 270.9 mg/Kg ☼ 81 75 - 125
Beryllium 0.441 J 222 201.3 mg/Kg ☼ 91 75 - 125
Cadmium ND 222 183.5 mg/Kg ☼ 83 75 - 125
Chromium 15.8 222 208.1 mg/Kg ☼ 87 75 - 125
Cobalt 6.54 222 195.2 mg/Kg ☼ 85 75 - 125
Copper 15.5 222 213.8 mg/Kg ☼ 90 75 - 125
Lead 1.39 222 198.5 mg/Kg ☼ 89 75 - 125
Molybdenum 0.968 222 200.3 mg/Kg ☼ 90 75 - 125
Nickel 11.1 222 197.8 mg/Kg ☼ 84 75 - 125
Selenium 1.01 222 179.8 mg/Kg ☼ 81 75 - 125
Silver ND 111 98.28 mg/Kg ☼ 89 75 - 125
Thallium 0.361 J F1 222 161.5 F1 mg/Kg ☼ 73 75 - 125
Vanadium 42.3 222 232.4 mg/Kg ☼ 86 75 - 125
Eurofins Calscience

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4677
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 6020B - Metals (ICP/MS) (Continued)
Lab Sample ID: 570-269712-15 MS Client Sample ID: EKI-SB-1-15.0 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706069 Prep Batch: 704833
Zinc 31.4 222 206.4 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 79 75 - 125
D %Rec
%Rec
Limits
Lab Sample ID: 570-269712-15 MSD Client Sample ID: EKI-SB-1-15.0 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 706069 Prep Batch: 704833
Antimony 1.45 F1 224 145.3 F1 mg/Kg 3 20
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
☼ 64 75 - 125
D %Rec
%Rec
Limits
Arsenic 3.16 224 194.8 mg/Kg ☼ 86 75 - 125 3 20
Barium 92.2 224 288.6 mg/Kg ☼ 88 75 - 125 6 20
Beryllium 0.441 J 224 201.3 mg/Kg ☼ 90 75 - 125 0 20
Cadmium ND 224 190.5 mg/Kg ☼ 85 75 - 125 4 20
Chromium 15.8 224 209.9 mg/Kg ☼ 87 75 - 125 1 20
Cobalt 6.54 224 199.5 mg/Kg ☼ 86 75 - 125 2 20
Copper 15.5 224 216.2 mg/Kg ☼ 90 75 - 125 1 20
Lead 1.39 224 201.0 mg/Kg ☼ 89 75 - 125 1 20
Molybdenum 0.968 224 210.8 mg/Kg ☼ 94 75 - 125 5 20
Nickel 11.1 224 200.0 mg/Kg ☼ 84 75 - 125 1 20
Selenium 1.01 224 186.3 mg/Kg ☼ 83 75 - 125 4 20
Silver ND 112 102.2 mg/Kg ☼ 91 75 - 125 4 20
Thallium 0.361 J F1 224 192.5 mg/Kg ☼ 86 75 - 125 18 20 Vanadium 42.3 224 238.8 mg/Kg ☼ 88 75 - 125 3 20
Zinc 31.4 224 211.8 mg/Kg ☼ 81 75 - 125 3 20
Method: 7471B - Mercury (CVAA)
Lab Sample ID: MB 570-704245/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704981 Prep Batch: 704245
RL MDL
Mercury ND 0.0833 0.0202 mg/Kg 03/04/26 10:36 03/05/26 10:39 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Lab Sample ID: LCS 570-704245/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704981 Prep Batch: 704245
Mercury 0.377 0.3988 mg/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
106 80 - 120
D %Rec
%Rec
Limits
Lab Sample ID: LCSD 570-704245/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704981 Prep Batch: 704245
Mercury 0.417 0.4536 mg/Kg 13 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
109 80 - 120
D %Rec
%Rec
Limits
Eurofins Calscience

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15 ATTACHMENT 6 - 3705
4678
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 7471B - Mercury (CVAA) (Continued)
Lab Sample ID: 570-269712-1 MS Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704981 Prep Batch: 704245
Mercury 0.0371 J 0.408 0.4300 mg/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
☼ 96 80 - 120
D %Rec
%Rec
Limits
Lab Sample ID: 570-269712-1 MSD Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704981 Prep Batch: 704245
Mercury 0.0371 J 0.433 0.5026 mg/Kg 16 20
Analyte

MSD MSD
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier RPD Limit
RPD
☼ 108 80 - 120
D %Rec
%Rec
Limits
Method: 2540G - Percent Moisture
Lab Sample ID: MB 570-704039/1 Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704039
RL MDL
Percent Moisture ND 0.100 0.100 % 03/03/26 18:13 1
MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Lab Sample ID: 570-269712-1 DU Client Sample ID: EKI-SB-10-0.5 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704039
Percent Moisture 7.62 7.77 % 2 10
Analyte
DU DU
Result Qualifier Unit
Sample
Result
Sample
Qualifier RPD Limit
RPD
D
Eurofins Calscience

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4679
Marginal Exceedance (ME) Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS)
Lab Sample ID: LCS 570-704242/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
1,2,4-Trichlorobenzene 5.00 3.956 mg/Kg 79 62 - 120
Analyte

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

Limits
ME %Rec.

Limits
55 - 128
Marginal Exceedance
Status
1,2-Dichlorobenzene 5.00 3.970 mg/Kg 79 60 - 120 52 128 - 1,3-Dichlorobenzene 5.00 4.006 mg/Kg 80 56 - 120 47 129 - 1,4-Dichlorobenzene 5.00 3.949 mg/Kg 79 56 - 120 49 127 - 1-Methylnaphthalene 5.00 3.938 mg/Kg 79 58 - 120 49 129 - 2,4,5-Trichlorophenol 5.00 4.637 mg/Kg 93 54 - 121 43 132 - 2,4,6-Trichlorophenol 5.00 4.758 mg/Kg 95 58 - 120 48 130 - 2,4-Dichlorophenol 5.00 4.378 mg/Kg 88 61 - 122 51 132 - 2,4-Dimethylphenol 5.00 4.261 mg/Kg 85 45 - 145 28 162 - 2,4-Dinitrophenol 5.00 6.931 mg/Kg 139 10 - 165 1 194 - 2,4-Dinitrotoluene 5.00 5.136 mg/Kg 103 55 - 122 44 133 - 2,6-Dichlorophenol 5.00 4.233 mg/Kg 85 58 - 120 48 130 - 2,6-Dinitrotoluene 5.00 5.152 mg/Kg 103 59 - 120 49 130 - 2-Chloronaphthalene 5.00 4.164 mg/Kg 83 60 - 120 52 128 - 2-Chlorophenol 5.00 4.950 mg/Kg 99 59 - 130 48 142 -
2-Methylnaphthalene 5.00 3.815 mg/Kg 76 59 - 126 48 137 - 2-Methylphenol 5.00 4.528 mg/Kg 91 58 - 134 45 147 -
2-Nitroaniline 5.00 5.199 mg/Kg 104 54 - 120 43 131 -
2-Nitrophenol 5.00 6.304 *+ me mg/Kg 126 51 - 125 39 137 - ME 3,3'-Dichlorobenzidine 5.00 3.555 mg/Kg 71 40 - 120 29 131 - 3/4-Methylphenol 10.0 8.495 mg/Kg 85 58 - 129 46 141 -
3-Nitroaniline 5.00 4.332 mg/Kg 87 50 - 120 40 130 -
4,6-Dinitro-2-methylphenol 5.00 6.427 mg/Kg 129 27 - 148 6 168 - 4-Bromophenyl phenyl ether 5.00 3.993 mg/Kg 80 59 - 120 51 128 - 4-Chloro-3-methylphenol 5.00 4.411 mg/Kg 88 54 - 132 41 145 - 4-Chloroaniline 5.00 3.235 mg/Kg 65 38 - 120 27 131 -
4-Chlorophenyl phenyl ether 5.00 4.083 mg/Kg 82 61 - 120 53 128 - 4-Nitroaniline 5.00 4.742 mg/Kg 95 52 - 124 40 136 -
4-Nitrophenol 5.00 4.650 mg/Kg 93 29 - 130 12 147 -
Acenaphthene 5.00 3.993 mg/Kg 80 58 - 120 50 128 -
Acenaphthylene 5.00 4.070 mg/Kg 81 56 - 120 48 129 -
Aniline 5.00 3.436 mg/Kg 69 26 - 120 12 134 -
Anthracene 5.00 4.001 mg/Kg 80 61 - 120 52 129 -
Azobenzene 5.00 3.737 mg/Kg 75 55 - 120 45 129 -
Benzidine 5.00 1.665 J mg/Kg 33 10 - 120 1 133 -
Benzo[a]anthracene 5.00 4.244 mg/Kg 85 62 - 120 52 129 - Benzo[a]pyrene 5.00 4.415 mg/Kg 88 55 - 130 42 143 -
Benzo[b]fluoranthene 5.00 4.544 mg/Kg 91 56 - 123 45 134 - Benzo[g,h,i]perylene 5.00 4.180 mg/Kg 84 53 - 120 42 131 - Benzo[k]fluoranthene 5.00 4.258 mg/Kg 85 56 - 122 45 133 - Benzoic acid 5.00 6.662 mg/Kg 133 10 - 133 -42 158 -
Benzyl alcohol 5.00 4.305 mg/Kg 86 35 - 139 17 156 -
Bis(2-chloroethoxy)methane 5.00 3.885 mg/Kg 78 55 - 120 46 130 - Bis(2-chloroethyl)ether 5.00 3.768 mg/Kg 75 48 - 120 36 132 - bis(2 chloro-1-methylethyl) ether 5.00 3.900 mg/Kg 78 45 - 122 32 135 - Bis(2-ethylhexyl) phthalate 5.00 4.533 mg/Kg 91 58 - 121 47 132 - Butyl benzyl phthalate 5.00 4.547 mg/Kg 91 57 - 122 47 133 - Chrysene 5.00 4.130 mg/Kg 83 59 - 120 50 129 -
Dibenz(a,h)anthracene 5.00 4.375 mg/Kg 88 56 - 124 45 135 - Eurofins Calscience

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4680
Marginal Exceedance (ME) Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-704242/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Dibenzofuran 5.00 4.134 mg/Kg 83 61 - 120
Analyte

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

Limits
ME %Rec.

Limits
53 - 128
Marginal Exceedance
Status
Diethyl phthalate 5.00 4.636 mg/Kg 93 60 - 120 51 129 - Dimethyl phthalate 5.00 4.440 mg/Kg 89 59 - 120 51 129 - Di-n-butyl phthalate 5.00 4.231 mg/Kg 85 60 - 120 50 130 - Di-n-octyl phthalate 5.00 4.976 mg/Kg 100 58 - 127 47 138 - Fluoranthene 5.00 4.078 mg/Kg 82 58 - 120 47 130 -
Fluorene 5.00 4.172 mg/Kg 83 60 - 120 51 129 -
Hexachloro-1,3-butadiene 5.00 3.896 mg/Kg 78 56 - 120 46 131 - Hexachlorobenzene 5.00 4.040 mg/Kg 81 58 - 120 49 129 - Hexachlorocyclopentadiene 5.00 4.831 mg/Kg 97 10 - 183 1 212 - Hexachloroethane 5.00 4.029 mg/Kg 81 51 - 120 43 129 -
Indeno[1,2,3-cd]pyrene 5.00 4.290 mg/Kg 86 55 - 126 43 138 - Isophorone 5.00 3.848 mg/Kg 77 54 - 120 45 129 -
Naphthalene 5.00 3.761 mg/Kg 75 58 - 120 50 129 -
Nitrobenzene 5.00 4.113 mg/Kg 82 53 - 120 43 130 -
N-Nitrosodimethylamine 5.00 3.789 mg/Kg 76 44 - 120 33 131 - N-Nitrosodi-n-propylamine 5.00 3.678 mg/Kg 74 54 - 120 45 130 - n-Nitrosodiphenylamine(as
diphenylamine)

5.00 4.613 mg/Kg 92 72 - 128 63 137 -
Pentachlorophenol 5.00 5.065 mg/Kg 101 26 - 134 8 152 - Phenanthrene 5.00 4.035 mg/Kg 81 61 - 120 52 129 -
Phenol 5.00 4.507 mg/Kg 90 56 - 129 44 141 -
Pyrene 5.00 4.209 mg/Kg 84 57 - 120 46 131 -
Pyridine 5.00 3.075 mg/Kg 61 27 - 120 12 135 -
Summary
Number of
Analytes Reported
72 Number of Marginal
Exceedances Allowed
4 Number of Marginal
Exceedances Found
1 ME = Marginal Exceedance
Lab Sample ID: LCSD 570-704242/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
1,2,4-Trichlorobenzene 5.00 3.987 mg/Kg 80 62 - 120
Analyte

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

Limits
ME %Rec.

Limits
55 - 128
Marginal Exceedance
Status
1,2-Dichlorobenzene 5.00 3.951 mg/Kg 79 60 - 120 52 128 - 1,3-Dichlorobenzene 5.00 3.993 mg/Kg 80 56 - 120 47 129 - 1,4-Dichlorobenzene 5.00 3.991 mg/Kg 80 56 - 120 49 127 - 1-Methylnaphthalene 5.00 4.028 mg/Kg 81 58 - 120 49 129 - 2,4,5-Trichlorophenol 5.00 4.549 mg/Kg 91 54 - 121 43 132 - 2,4,6-Trichlorophenol 5.00 4.726 mg/Kg 95 58 - 120 48 130 - 2,4-Dichlorophenol 5.00 4.299 mg/Kg 86 61 - 122 51 132 - 2,4-Dimethylphenol 5.00 4.405 mg/Kg 88 45 - 145 28 162 - 2,4-Dinitrophenol 5.00 7.174 mg/Kg 143 10 - 165 1 194 - 2,4-Dinitrotoluene 5.00 5.149 mg/Kg 103 55 - 122 44 133 - 2,6-Dichlorophenol 5.00 4.225 mg/Kg 84 58 - 120 48 130 - 2,6-Dinitrotoluene 5.00 5.159 mg/Kg 103 59 - 120 49 130 - 2-Chloronaphthalene 5.00 4.141 mg/Kg 83 60 - 120 52 128 - 2-Chlorophenol 5.00 4.976 mg/Kg 100 59 - 130 48 142 -
Eurofins Calscience

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4681
Marginal Exceedance (ME) Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-704242/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
2-Methylnaphthalene 5.00 3.921 mg/Kg 78 59 - 126
Analyte

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

Limits
ME %Rec.

Limits
48 - 137
Marginal Exceedance
Status
2-Methylphenol 5.00 4.465 mg/Kg 89 58 - 134 45 147 -
2-Nitroaniline 5.00 5.238 mg/Kg 105 54 - 120 43 131 -
2-Nitrophenol 5.00 6.377 *+ me mg/Kg 128 51 - 125 39 137 - ME 3,3'-Dichlorobenzidine 5.00 4.003 mg/Kg 80 40 - 120 29 131 - 3/4-Methylphenol 10.0 8.350 mg/Kg 84 58 - 129 46 141 -
3-Nitroaniline 5.00 4.627 mg/Kg 93 50 - 120 40 130 -
4,6-Dinitro-2-methylphenol 5.00 6.415 mg/Kg 128 27 - 148 6 168 - 4-Bromophenyl phenyl ether 5.00 3.937 mg/Kg 79 59 - 120 51 128 - 4-Chloro-3-methylphenol 5.00 4.453 mg/Kg 89 54 - 132 41 145 - 4-Chloroaniline 5.00 3.796 mg/Kg 76 38 - 120 27 131 -
4-Chlorophenyl phenyl ether 5.00 4.027 mg/Kg 81 61 - 120 53 128 - 4-Nitroaniline 5.00 4.788 mg/Kg 96 52 - 124 40 136 -
4-Nitrophenol 5.00 4.654 mg/Kg 93 29 - 130 12 147 -
Acenaphthene 5.00 3.921 mg/Kg 78 58 - 120 50 128 -
Acenaphthylene 5.00 4.061 mg/Kg 81 56 - 120 48 129 -
Aniline 5.00 3.948 mg/Kg 79 26 - 120 12 134 -
Anthracene 5.00 4.032 mg/Kg 81 61 - 120 52 129 -
Azobenzene 5.00 3.736 mg/Kg 75 55 - 120 45 129 -
Benzidine 5.00 2.381 J mg/Kg 48 10 - 120 1 133 -
Benzo[a]anthracene 5.00 4.262 mg/Kg 85 62 - 120 52 129 - Benzo[a]pyrene 5.00 4.462 mg/Kg 89 55 - 130 42 143 -
Benzo[b]fluoranthene 5.00 4.526 mg/Kg 91 56 - 123 45 134 - Benzo[g,h,i]perylene 5.00 4.345 mg/Kg 87 53 - 120 42 131 - Benzo[k]fluoranthene 5.00 4.308 mg/Kg 86 56 - 122 45 133 - Benzoic acid 5.00 6.787 *+ me mg/Kg 136 10 - 133 -42 158 - ME Benzyl alcohol 5.00 4.281 mg/Kg 86 35 - 139 17 156 -
Bis(2-chloroethoxy)methane 5.00 3.865 mg/Kg 77 55 - 120 46 130 - Bis(2-chloroethyl)ether 5.00 3.910 mg/Kg 78 48 - 120 36 132 - bis(2 chloro-1-methylethyl) ether 5.00 3.958 mg/Kg 79 45 - 122 32 135 - Bis(2-ethylhexyl) phthalate 5.00 4.551 mg/Kg 91 58 - 121 47 132 - Butyl benzyl phthalate 5.00 4.458 mg/Kg 89 57 - 122 47 133 - Chrysene 5.00 4.098 mg/Kg 82 59 - 120 50 129 -
Dibenz(a,h)anthracene 5.00 4.533 mg/Kg 91 56 - 124 45 135 - Dibenzofuran 5.00 4.158 mg/Kg 83 61 - 120 53 128 -
Diethyl phthalate 5.00 4.595 mg/Kg 92 60 - 120 51 129 - Dimethyl phthalate 5.00 4.388 mg/Kg 88 59 - 120 51 129 - Di-n-butyl phthalate 5.00 4.173 mg/Kg 83 60 - 120 50 130 - Di-n-octyl phthalate 5.00 4.963 mg/Kg 99 58 - 127 47 138 - Fluoranthene 5.00 4.155 mg/Kg 83 58 - 120 47 130 -
Fluorene 5.00 4.163 mg/Kg 83 60 - 120 51 129 -
Hexachloro-1,3-butadiene 5.00 3.954 mg/Kg 79 56 - 120 46 131 - Hexachlorobenzene 5.00 3.977 mg/Kg 80 58 - 120 49 129 - Hexachlorocyclopentadiene 5.00 4.788 mg/Kg 96 10 - 183 1 212 - Hexachloroethane 5.00 3.988 mg/Kg 80 51 - 120 43 129 -
Indeno[1,2,3-cd]pyrene 5.00 4.387 mg/Kg 88 55 - 126 43 138 - Isophorone 5.00 3.943 mg/Kg 79 54 - 120 45 129 -
Naphthalene 5.00 3.805 mg/Kg 76 58 - 120 50 129 -
Nitrobenzene 5.00 4.203 mg/Kg 84 53 - 120 43 130 -
N-Nitrosodimethylamine 5.00 3.820 mg/Kg 76 44 - 120 33 131 - Eurofins Calscience

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4682
Marginal Exceedance (ME) Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method: 8270C - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-704242/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
N-Nitrosodi-n-propylamine 5.00 3.770 mg/Kg 75 54 - 120
Analyte

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

Limits
ME %Rec.

Limits
45 - 130
Marginal Exceedance
Status
n-Nitrosodiphenylamine(as
diphenylamine)

5.00 4.662 mg/Kg 93 72 - 128 63 137 -
Pentachlorophenol 5.00 5.008 mg/Kg 100 26 - 134 8 152 - Phenanthrene 5.00 4.016 mg/Kg 80 61 - 120 52 129 -
Phenol 5.00 4.496 mg/Kg 90 56 - 129 44 141 -
Pyrene 5.00 4.196 mg/Kg 84 57 - 120 46 131 -
Pyridine 5.00 2.371 *1 mg/Kg 47 27 - 120 12 135 -
Summary
Number of
Analytes Reported
72 Number of Marginal
Exceedances Allowed
4 Number of Marginal
Exceedances Found
2 ME = Marginal Exceedance
Eurofins Calscience

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4683
QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company

GC/MS VOA
Prep Batch: 703672
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 5035
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 5035
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 5035
570-269712-12 EKI-UST-1-8.0 Total/NA Solid 5035
570-269712-13 EKI-UST-1-15.0 Total/NA Solid 5035
570-269712-16 EKI-SB-9-8.5 Total/NA Solid 5035
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 5035
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 5035
Analysis Batch: 705634
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 8260B 703672
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 8260B 703672
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 8260B 703672
570-269712-12 EKI-UST-1-8.0 Total/NA Solid 8260B 703672 570-269712-13 EKI-UST-1-15.0 Total/NA Solid 8260B 703672 570-269712-16 EKI-SB-9-8.5 Total/NA Solid 8260B 703672
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 8260B 703672
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 8260B 703672
MB 570-705634/5 Method Blank Total/NA Solid 8260B
LCS 570-705634/3 Lab Control Sample Total/NA Solid 8260B LCSD 570-705634/4 Lab Control Sample Dup Total/NA Solid 8260B GC/MS Semi VOA
Prep Batch: 704242
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 3546
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 3546
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 3546
570-269712-4 EKI-SB-1-5.5 Total/NA Solid 3546
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 3546
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 3546
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 3546
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 3546
570-269712-12 EKI-UST-1-8.0 Total/NA Solid 3546
570-269712-14 EKI-SB-1-7.0 Total/NA Solid 3546
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 3546
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 3546
MB 570-704242/1-A Method Blank Total/NA Solid 3546
LCS 570-704242/2-A Lab Control Sample Total/NA Solid 3546 LCSD 570-704242/3-A Lab Control Sample Dup Total/NA Solid 3546 570-269712-1 MS EKI-SB-10-0.5 Total/NA Solid 3546
570-269712-1 MSD EKI-SB-10-0.5 Total/NA Solid 3546
Analysis Batch: 704919
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 8270C 704242
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 8270C 704242
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 8270C 704242
570-269712-4 EKI-SB-1-5.5 Total/NA Solid 8270C 704242
Eurofins Calscience

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4684
QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
GC/MS Semi VOA (Continued)
Analysis Batch: 704919 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-5 EKI-SB-2-3.0 Total/NA Solid 8270C 704242
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 8270C 704242
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 8270C 704242
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 8270C 704242 570-269712-12 EKI-UST-1-8.0 Total/NA Solid 8270C 704242 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 8270C 704242
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 8270C 704242 570-269712-17 EKI-SB-7-2.5 Total/NA Solid 8270C 704242
MB 570-704242/1-A Method Blank Total/NA Solid 8270C 704242 LCS 570-704242/2-A Lab Control Sample Total/NA Solid 8270C 704242 LCSD 570-704242/3-A Lab Control Sample Dup Total/NA Solid 8270C 704242 570-269712-1 MS EKI-SB-10-0.5 Total/NA Solid 8270C 704242 570-269712-1 MSD EKI-SB-10-0.5 Total/NA Solid 8270C 704242 Prep Batch: 708773
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-13 EKI-UST-1-15.0 Total/NA Solid 3546
570-269712-16 EKI-SB-9-8.5 Total/NA Solid 3546
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 3546
MB 570-708773/1-A Method Blank Total/NA Solid 3546
LCS 570-708773/2-A Lab Control Sample Total/NA Solid 3546 LCSD 570-708773/3-A Lab Control Sample Dup Total/NA Solid 3546 Analysis Batch: 709875
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-13 EKI-UST-1-15.0 Total/NA Solid 8270C 708773 570-269712-16 EKI-SB-9-8.5 Total/NA Solid 8270C 708773
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 8270C 708773
MB 570-708773/1-A Method Blank Total/NA Solid 8270C 708773 LCS 570-708773/2-A Lab Control Sample Total/NA Solid 8270C 708773 LCSD 570-708773/3-A Lab Control Sample Dup Total/NA Solid 8270C 708773 GC VOA
Analysis Batch: 705367
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 8015C 705503
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 8015C 705503
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 8015C 705503
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 8015C 705503
570-269712-12 EKI-UST-1-8.0 Total/NA Solid 8015C 705503 570-269712-13 EKI-UST-1-15.0 Total/NA Solid 8015C 705503 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 8015C 705503
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 8015C 705503 570-269712-16 EKI-SB-9-8.5 Total/NA Solid 8015C 705503
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 8015C 705503
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 8015C 705503
MB 570-705503/3-A Method Blank Total/NA Solid 8015C 705503 LCS 570-705503/1-A Lab Control Sample Total/NA Solid 8015C 705503 LCS 570-705503/1-A Lab Control Sample Total/NA Solid 8015C 705503 570-269712-3 MS EKI-SB-10-5.0 Total/NA Solid 8015C 705503 Eurofins Calscience

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4685
QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
GC VOA (Continued)
Analysis Batch: 705367 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-3 MSD EKI-SB-10-5.0 Total/NA Solid 8015C 705503 Prep Batch: 705503
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 5030C
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 5030C
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 5030C
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 5030C
570-269712-12 EKI-UST-1-8.0 Total/NA Solid 5030C
570-269712-13 EKI-UST-1-15.0 Total/NA Solid 5030C
570-269712-14 EKI-SB-1-7.0 Total/NA Solid 5030C
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 5030C
570-269712-16 EKI-SB-9-8.5 Total/NA Solid 5030C
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 5030C
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 5030C
MB 570-705503/3-A Method Blank Total/NA Solid 5030C
LCS 570-705503/1-A Lab Control Sample Total/NA Solid 5030C 570-269712-3 MS EKI-SB-10-5.0 Total/NA Solid 5030C
570-269712-3 MSD EKI-SB-10-5.0 Total/NA Solid 5030C
Analysis Batch: 705925
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-11 EKI-DB-2-15.0 Total/NA Solid 8015C 705961 MB 570-705961/3-A Method Blank Total/NA Solid 8015C 705961 LCS 570-705961/1-A Lab Control Sample Total/NA Solid 8015C 705961 LCSD 570-705961/2-A Lab Control Sample Dup Total/NA Solid 8015C 705961 Prep Batch: 705961
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-11 EKI-DB-2-15.0 Total/NA Solid 5030C
MB 570-705961/3-A Method Blank Total/NA Solid 5030C
LCS 570-705961/1-A Lab Control Sample Total/NA Solid 5030C LCSD 570-705961/2-A Lab Control Sample Dup Total/NA Solid 5030C GC Semi VOA
Prep Batch: 704150
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-15 EKI-SB-1-15.0 Total/NA Solid 3546
MB 570-704150/1-A Method Blank Total/NA Solid 3546
LCS 570-704150/2-A Lab Control Sample Total/NA Solid 3546 LCSD 570-704150/3-A Lab Control Sample Dup Total/NA Solid 3546 Prep Batch: 704155
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-4 EKI-SB-1-5.5 Total/NA Solid 3546
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 3546
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 3546
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 3546
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 3546
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 3546
Eurofins Calscience

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4686
QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
GC Semi VOA (Continued)
Prep Batch: 704155 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-10 EKI-DB-2-7.0 Total/NA Solid 3546
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 3546
570-269712-14 EKI-SB-1-7.0 Total/NA Solid 3546
MB 570-704155/1-A Method Blank Total/NA Solid 3546
LCS 570-704155/2-A Lab Control Sample Total/NA Solid 3546 LCSD 570-704155/3-A Lab Control Sample Dup Total/NA Solid 3546 Prep Batch: 704317
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-4 EKI-SB-1-5.5 Total/NA Solid 3546
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 3546
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 3546
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 3546
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 3546
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 3546
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 3546
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 3546
570-269712-14 EKI-SB-1-7.0 Total/NA Solid 3546
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 3546
MB 570-704317/1-A Method Blank Total/NA Solid 3546
LCS 570-704317/2-A Lab Control Sample Total/NA Solid 3546 LCSD 570-704317/3-A Lab Control Sample Dup Total/NA Solid 3546 570-269712-4 MS EKI-SB-1-5.5 Total/NA Solid 3546
570-269712-4 MSD EKI-SB-1-5.5 Total/NA Solid 3546
Analysis Batch: 704531
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 570-704150/1-A Method Blank Total/NA Solid 8081B 704150 Prep Batch: 704828
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid Rotary Shaker 570-269712-2 EKI-SB-10-2.0 Total/NA Solid Rotary Shaker 570-269712-3 EKI-SB-10-5.0 Total/NA Solid Rotary Shaker 570-269712-10 EKI-DB-2-7.0 Total/NA Solid Rotary Shaker 570-269712-11 EKI-DB-2-15.0 Total/NA Solid Rotary Shaker 570-269712-12 EKI-UST-1-8.0 Total/NA Solid Rotary Shaker 570-269712-13 EKI-UST-1-15.0 Total/NA Solid Rotary Shaker 570-269712-14 EKI-SB-1-7.0 Total/NA Solid Rotary Shaker 570-269712-15 EKI-SB-1-15.0 Total/NA Solid Rotary Shaker 570-269712-16 EKI-SB-9-8.5 Total/NA Solid Rotary Shaker 570-269712-17 EKI-SB-7-2.5 Total/NA Solid Rotary Shaker 570-269712-18 EKI-SB-8-1.5 Total/NA Solid Rotary Shaker MB 570-704828/1-A Method Blank Total/NA Solid Rotary Shaker LCS 570-704828/2-A Lab Control Sample Total/NA Solid Rotary Shaker LCSD 570-704828/3-A Lab Control Sample Dup Total/NA Solid Rotary Shaker 570-269712-1 MS EKI-SB-10-0.5 Total/NA Solid Rotary Shaker 570-269712-1 MSD EKI-SB-10-0.5 Total/NA Solid Rotary Shaker Eurofins Calscience

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4687
QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
GC Semi VOA
Analysis Batch: 704996
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-15 EKI-SB-1-15.0 Total/NA Solid 8081B 704150 MB 570-704155/1-A Method Blank Total/NA Solid 8081B 704155 LCS 570-704150/2-A Lab Control Sample Total/NA Solid 8081B 704150 LCS 570-704155/2-A Lab Control Sample Total/NA Solid 8081B 704155 LCSD 570-704150/3-A Lab Control Sample Dup Total/NA Solid 8081B 704150 LCSD 570-704155/3-A Lab Control Sample Dup Total/NA Solid 8081B 704155 Analysis Batch: 705604
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-4 EKI-SB-1-5.5 Total/NA Solid 8081B 704155
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 8081B 704155
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 8081B 704155
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 8081B 704155
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 8081B 704155
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 8081B 704155
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 8081B 704155
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 8081B 704155 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 8081B 704155
Analysis Batch: 706273
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 8015C 704828
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 8015C 704828
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 8015C 704828
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 8015C 704828
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 8015C 704828 570-269712-12 EKI-UST-1-8.0 Total/NA Solid 8015C 704828 570-269712-13 EKI-UST-1-15.0 Total/NA Solid 8015C 704828 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 8015C 704828
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 8015C 704828 570-269712-16 EKI-SB-9-8.5 Total/NA Solid 8015C 704828
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 8015C 704828
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 8015C 704828
MB 570-704828/1-A Method Blank Total/NA Solid 8015C 704828 LCS 570-704828/2-A Lab Control Sample Total/NA Solid 8015C 704828 LCSD 570-704828/3-A Lab Control Sample Dup Total/NA Solid 8015C 704828 570-269712-1 MS EKI-SB-10-0.5 Total/NA Solid 8015C 704828 570-269712-1 MSD EKI-SB-10-0.5 Total/NA Solid 8015C 704828 Analysis Batch: 710088
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-4 EKI-SB-1-5.5 Total/NA Solid 8141B 704317
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 8141B 704317
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 8141B 704317
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 8141B 704317
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 8141B 704317
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 8141B 704317
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 8141B 704317
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 8141B 704317 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 8141B 704317
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 8141B 704317 Eurofins Calscience

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QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
GC Semi VOA (Continued)
Analysis Batch: 710088 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 570-704317/1-A Method Blank Total/NA Solid 8141B 704317 LCS 570-704317/2-A Lab Control Sample Total/NA Solid 8141B 704317 LCSD 570-704317/3-A Lab Control Sample Dup Total/NA Solid 8141B 704317 570-269712-4 MS EKI-SB-1-5.5 Total/NA Solid 8141B 704317 570-269712-4 MSD EKI-SB-1-5.5 Total/NA Solid 8141B 704317 LCMS
Prep Batch: 703587
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-4 EKI-SB-1-5.5 Total/NA Solid Auto Shaker
570-269712-5 EKI-SB-2-3.0 Total/NA Solid Auto Shaker
570-269712-6 EKI-SB-3-5.5 Total/NA Solid Auto Shaker
570-269712-7 EKI-SB-4-5.5 Total/NA Solid Auto Shaker
570-269712-8 EKI-SB-5-6.0 Total/NA Solid Auto Shaker
570-269712-9 EKI-SB-6-4.5 Total/NA Solid Auto Shaker
570-269712-10 EKI-DB-2-7.0 Total/NA Solid Auto Shaker
570-269712-11 EKI-DB-2-15.0 Total/NA Solid Auto Shaker
570-269712-14 EKI-SB-1-7.0 Total/NA Solid Auto Shaker
570-269712-15 EKI-SB-1-15.0 Total/NA Solid Auto Shaker
MB 570-703587/1-A Method Blank Total/NA Solid Auto Shaker LCS 570-703587/2-A Lab Control Sample Total/NA Solid Auto Shaker LCSD 570-703587/3-A Lab Control Sample Dup Total/NA Solid Auto Shaker 570-269712-4 MS EKI-SB-1-5.5 Total/NA Solid Auto Shaker 570-269712-4 MSD EKI-SB-1-5.5 Total/NA Solid Auto Shaker Analysis Batch: 704303
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-4 EKI-SB-1-5.5 Total/NA Solid 8321B 703587
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 8321B 703587
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 8321B 703587
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 8321B 703587
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 8321B 703587
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 8321B 703587
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 8321B 703587
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 8321B 703587 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 8321B 703587
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 8321B 703587 MB 570-703587/1-A Method Blank Total/NA Solid 8321B 703587 LCS 570-703587/2-A Lab Control Sample Total/NA Solid 8321B 703587 LCSD 570-703587/3-A Lab Control Sample Dup Total/NA Solid 8321B 703587 570-269712-4 MS EKI-SB-1-5.5 Total/NA Solid 8321B 703587 570-269712-4 MSD EKI-SB-1-5.5 Total/NA Solid 8321B 703587 Metals
Prep Batch: 704245
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 7471B
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 7471B
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 7471B
570-269712-4 EKI-SB-1-5.5 Total/NA Solid 7471B
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QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Metals (Continued)
Prep Batch: 704245 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-5 EKI-SB-2-3.0 Total/NA Solid 7471B
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 7471B
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 7471B
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 7471B
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 7471B
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 7471B
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 7471B
570-269712-14 EKI-SB-1-7.0 Total/NA Solid 7471B
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 7471B
570-269712-16 EKI-SB-9-8.5 Total/NA Solid 7471B
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 7471B
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 7471B
MB 570-704245/1-A Method Blank Total/NA Solid 7471B
LCS 570-704245/2-A Lab Control Sample Total/NA Solid 7471B LCSD 570-704245/3-A Lab Control Sample Dup Total/NA Solid 7471B 570-269712-1 MS EKI-SB-10-0.5 Total/NA Solid 7471B
570-269712-1 MSD EKI-SB-10-0.5 Total/NA Solid 7471B
Prep Batch: 704829
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 3051A
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 3051A
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 3051A
570-269712-4 EKI-SB-1-5.5 Total/NA Solid 3051A
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 3051A
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 3051A
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 3051A
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 3051A
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 3051A
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 3051A
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 3051A
570-269712-14 EKI-SB-1-7.0 Total/NA Solid 3051A
MB 570-704829/1-A Method Blank Total/NA Solid 3051A
LCS 570-704829/2-A Lab Control Sample Total/NA Solid 3051A LCSD 570-704829/3-A Lab Control Sample Dup Total/NA Solid 3051A Prep Batch: 704833
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-15 EKI-SB-1-15.0 Total/NA Solid 3051A
570-269712-16 EKI-SB-9-8.5 Total/NA Solid 3051A
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 3051A
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 3051A
MB 570-704833/1-A Method Blank Total/NA Solid 3051A
LCS 570-704833/2-A Lab Control Sample Total/NA Solid 3051A LCSD 570-704833/3-A Lab Control Sample Dup Total/NA Solid 3051A 570-269712-15 MS EKI-SB-1-15.0 Total/NA Solid 3051A
570-269712-15 MSD EKI-SB-1-15.0 Total/NA Solid 3051A
Analysis Batch: 704981
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 7471B 704245
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QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Metals (Continued)
Analysis Batch: 704981 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-2 EKI-SB-10-2.0 Total/NA Solid 7471B 704245
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 7471B 704245
570-269712-4 EKI-SB-1-5.5 Total/NA Solid 7471B 704245
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 7471B 704245
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 7471B 704245
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 7471B 704245
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 7471B 704245
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 7471B 704245
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 7471B 704245
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 7471B 704245 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 7471B 704245
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 7471B 704245 570-269712-16 EKI-SB-9-8.5 Total/NA Solid 7471B 704245
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 7471B 704245
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 7471B 704245
MB 570-704245/1-A Method Blank Total/NA Solid 7471B 704245 LCS 570-704245/2-A Lab Control Sample Total/NA Solid 7471B 704245 LCSD 570-704245/3-A Lab Control Sample Dup Total/NA Solid 7471B 704245 570-269712-1 MS EKI-SB-10-0.5 Total/NA Solid 7471B 704245 570-269712-1 MSD EKI-SB-10-0.5 Total/NA Solid 7471B 704245 Analysis Batch: 705814
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 6020B 704829
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 6020B 704829
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 6020B 704829
570-269712-4 EKI-SB-1-5.5 Total/NA Solid 6020B 704829
570-269712-5 EKI-SB-2-3.0 Total/NA Solid 6020B 704829
570-269712-6 EKI-SB-3-5.5 Total/NA Solid 6020B 704829
570-269712-7 EKI-SB-4-5.5 Total/NA Solid 6020B 704829
570-269712-8 EKI-SB-5-6.0 Total/NA Solid 6020B 704829
570-269712-9 EKI-SB-6-4.5 Total/NA Solid 6020B 704829
570-269712-10 EKI-DB-2-7.0 Total/NA Solid 6020B 704829
570-269712-11 EKI-DB-2-15.0 Total/NA Solid 6020B 704829 570-269712-14 EKI-SB-1-7.0 Total/NA Solid 6020B 704829
MB 570-704829/1-A Method Blank Total/NA Solid 6020B 704829 LCS 570-704829/2-A Lab Control Sample Total/NA Solid 6020B 704829 LCSD 570-704829/3-A Lab Control Sample Dup Total/NA Solid 6020B 704829 Analysis Batch: 706069
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-15 EKI-SB-1-15.0 Total/NA Solid 6020B 704833 570-269712-16 EKI-SB-9-8.5 Total/NA Solid 6020B 704833
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 6020B 704833
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 6020B 704833
MB 570-704833/1-A Method Blank Total/NA Solid 6020B 704833 LCS 570-704833/2-A Lab Control Sample Total/NA Solid 6020B 704833 LCSD 570-704833/3-A Lab Control Sample Dup Total/NA Solid 6020B 704833 570-269712-15 MS EKI-SB-1-15.0 Total/NA Solid 6020B 704833 570-269712-15 MSD EKI-SB-1-15.0 Total/NA Solid 6020B 704833 Eurofins Calscience

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QC Association Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
General Chemistry
Analysis Batch: 704039
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-269712-1 EKI-SB-10-0.5 Total/NA Solid 2540G
570-269712-2 EKI-SB-10-2.0 Total/NA Solid 2540G
570-269712-3 EKI-SB-10-5.0 Total/NA Solid 2540G
570-269712-12 EKI-UST-1-8.0 Total/NA Solid 2540G
570-269712-13 EKI-UST-1-15.0 Total/NA Solid 2540G
570-269712-14 EKI-SB-1-7.0 Total/NA Solid 2540G
570-269712-15 EKI-SB-1-15.0 Total/NA Solid 2540G
570-269712-16 EKI-SB-9-8.5 Total/NA Solid 2540G
570-269712-17 EKI-SB-7-2.5 Total/NA Solid 2540G
570-269712-18 EKI-SB-8-1.5 Total/NA Solid 2540G
MB 570-704039/1 Method Blank Total/NA Solid 2540G
570-269712-1 DU EKI-SB-10-0.5 Total/NA Solid 2540G
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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-10-0.5 Lab Sample ID: 570-269712-1 Date Collected: 03/01/26 13:21 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.825 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 20:17 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.21 g 2 mL 704242 03/04/26 10:33 C5G3 EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 16:04 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.02 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 12:40 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.08 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 13:01 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3051A 0.5320 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:19 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.48 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 10:45 JP8N EET CAL 4 Instrument ID: HG9
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-SB-10-2.0 Lab Sample ID: 570-269712-2 Date Collected: 03/01/26 13:24 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.306 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 20:38 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.29 g 2 mL 704242 03/04/26 10:33 C5G3 EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 16:28 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.15 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 13:04 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.12 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 13:28 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3051A 0.4961 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:22 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.51 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 10:50 JP8N EET CAL 4 Instrument ID: HG9
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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-10-2.0 Lab Sample ID: 570-269712-2 Date Collected: 03/01/26 13:24 Matrix: Solid
Date Received: 03/02/26 11:45
Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA
Client Sample ID: EKI-SB-10-5.0 Lab Sample ID: 570-269712-3 Date Collected: 03/01/26 13:28 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 3.693 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 20:59 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.18 g 2 mL 704242 03/04/26 10:33 C5G3 EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 16:53 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.03 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 13:27 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.05 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 13:55 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3051A 0.4629 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:25 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.52 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 10:52 JP8N EET CAL 4 Instrument ID: HG9
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-SB-1-5.5 Lab Sample ID: 570-269712-4 Date Collected: 02/28/26 15:05 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704242 03/04/26 10:33 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.12 g 2 mL
Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 17:17 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 3546 20.18 g 10 mL 704155 03/04/26 11:44 XG8M EET CAL 4 Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 21:32 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.14 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/17/26 19:52 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.01 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 13:19 CG EET CAL 4 Instrument ID: LCTQ3
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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-1-5.5 Lab Sample ID: 570-269712-4 Date Collected: 02/28/26 15:05 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3051A 704829 03/05/26 10:16 M2KZ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.4647 g 50 mL
Total/NA Analysis 6020B 5 705814 03/07/26 00:28 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.51 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 10:54 JP8N EET CAL 4 Instrument ID: HG9
Client Sample ID: EKI-SB-2-3.0 Lab Sample ID: 570-269712-5 Date Collected: 03/01/26 10:59 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704242 03/04/26 10:33 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.19 g 2 mL
Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 17:41 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 3546 20.07 g 10 mL 704155 03/04/26 11:44 XG8M EET CAL 4 Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 21:47 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.08 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/17/26 20:39 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.01 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 13:27 CG EET CAL 4 Instrument ID: LCTQ3
Total/NA Prep 3051A 0.5810 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:30 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.53 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 10:56 JP8N EET CAL 4 Instrument ID: HG9
Client Sample ID: EKI-SB-3-5.5 Lab Sample ID: 570-269712-6 Date Collected: 03/01/26 11:40 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704242 03/04/26 10:33 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.26 g 2 mL
Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 18:05 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 3546 20.17 g 10 mL 704155 03/04/26 11:44 XG8M EET CAL 4 Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 22:02 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.12 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/17/26 21:26 UJ3K EET CAL 4 Instrument ID: GC68
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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-3-5.5 Lab Sample ID: 570-269712-6 Date Collected: 03/01/26 11:40 Matrix: Solid
Date Received: 03/02/26 11:45
Prep Auto Shaker 703587 03/03/26 10:21 UGM4 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 2.01 g 5 mL
Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 13:35 CG EET CAL 4 Instrument ID: LCTQ3
Total/NA Prep 3051A 0.4934 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:42 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.49 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:02 JP8N EET CAL 4 Instrument ID: HG9
Client Sample ID: EKI-SB-4-5.5 Lab Sample ID: 570-269712-7 Date Collected: 03/01/26 12:11 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704155 03/04/26 11:44 XG8M EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.30 g 10 mL
Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 22:17 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.30 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/17/26 22:14 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.04 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 13:43 CG EET CAL 4 Instrument ID: LCTQ3
Total/NA Prep 3051A 0.5148 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:45 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.49 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:04 JP8N EET CAL 4 Instrument ID: HG9
Client Sample ID: EKI-SB-5-6.0 Lab Sample ID: 570-269712-8 Date Collected: 03/01/26 12:42 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704155 03/04/26 11:44 XG8M EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.08 g 10 mL
Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 22:32 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.14 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/17/26 23:01 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.00 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 13:51 CG EET CAL 4 Instrument ID: LCTQ3
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Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-5-6.0 Lab Sample ID: 570-269712-8 Date Collected: 03/01/26 12:42 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3051A 704829 03/05/26 10:16 M2KZ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.4493 g 50 mL
Total/NA Analysis 6020B 5 705814 03/07/26 00:47 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.47 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:06 JP8N EET CAL 4 Instrument ID: HG9
Client Sample ID: EKI-SB-6-4.5 Lab Sample ID: 570-269712-9 Date Collected: 03/01/26 13:09 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704155 03/04/26 11:44 XG8M EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.25 g 10 mL
Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 22:47 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.03 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/17/26 23:49 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.01 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 13:59 CG EET CAL 4 Instrument ID: LCTQ3
Total/NA Prep 3051A 0.4662 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:50 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.51 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:08 JP8N EET CAL 4 Instrument ID: HG9
Client Sample ID: EKI-DB-2-7.0 Lab Sample ID: 570-269712-10 Date Collected: 02/28/26 09:40 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704242 03/04/26 10:33 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.23 g 2 mL
Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 18:30 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.02 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 13:50 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.15 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 14:22 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3546 20.09 g 10 mL 704155 03/04/26 11:44 XG8M EET CAL 4 Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 23:01 N5Y3 EET CAL 4 Instrument ID: GC52A
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Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-DB-2-7.0 Lab Sample ID: 570-269712-10 Date Collected: 02/28/26 09:40 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704317 03/04/26 12:39 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 10.22 g 10 mL
Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/18/26 00:36 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.01 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 14:07 CG EET CAL 4 Instrument ID: LCTQ3
Total/NA Prep 3051A 0.5414 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:53 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.52 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:10 JP8N EET CAL 4 Instrument ID: HG9
Client Sample ID: EKI-DB-2-15.0 Lab Sample ID: 570-269712-11 Date Collected: 02/28/26 09:55 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704242 03/04/26 10:33 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.23 g 2 mL
Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 18:54 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.00 g 5 mL 705961 03/07/26 11:46 YD9V EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705925 03/07/26 15:33 YD9V EET CAL 4 Instrument ID: GC73
Total/NA Prep Rotary Shaker 10.22 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 14:49 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3546 20.14 g 10 mL 704155 03/04/26 11:44 XG8M EET CAL 4 Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 23:16 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.26 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/18/26 01:24 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.04 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 14:15 CG EET CAL 4 Instrument ID: LCTQ3
Total/NA Prep 3051A 0.4921 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:56 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.51 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:11 JP8N EET CAL 4 Instrument ID: HG9
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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-UST-1-8.0 Lab Sample ID: 570-269712-12 Date Collected: 02/28/26 11:00 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.661 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 21:20 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.36 g 2 mL 704242 03/04/26 17:34 C5G3 EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 19:18 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.11 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 14:36 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.02 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 15:16 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-UST-1-15.0 Lab Sample ID: 570-269712-13 Date Collected: 02/28/26 11:10 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 6.607 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 21:41 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.10 g 2 mL 708773 03/13/26 10:04 XG8M EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 709875 03/16/26 16:26 J7WE EET CAL 4 Instrument ID: GCMSCCC
Total/NA Prep 5030C 5.04 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 14:59 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.18 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 15:43 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704242 03/04/26 17:34 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.35 g 2 mL
Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 20:06 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.21 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 15:22 W4LC EET CAL 4 Instrument ID: GC75
Eurofins Calscience

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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-1-7.0 Lab Sample ID: 570-269712-14 Date Collected: 02/28/26 15:12 Matrix: Solid
Date Received: 03/02/26 11:45
Prep Rotary Shaker 704828 03/05/26 10:16 S3HK EET CAL 4 Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 10.06 g 10 mL
Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 16:10 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3546 20.17 g 10 mL 704155 03/04/26 12:30 XG8M EET CAL 4 Total/NA Analysis 8081B 1 1 mL 1 mL 705604 03/06/26 23:31 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.27 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/18/26 03:46 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.00 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 14:31 CG EET CAL 4 Instrument ID: LCTQ3
Total/NA Prep 3051A 0.5338 g 50 mL 704829 03/05/26 10:16 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 705814 03/07/26 00:58 UFLE EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.53 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:17 JP8N EET CAL 4 Instrument ID: HG9
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3546 704242 03/04/26 17:34 C5G3 EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 20.36 g 2 mL
Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 20:31 PQS1 EET CAL 4 Instrument ID: GCMSSS
Total/NA Prep 5030C 5.04 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 17:25 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 1014 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 16:37 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3546 20.19 g 10 mL 704150 03/04/26 09:02 XG8M EET CAL 4 Total/NA Analysis 8081B 1 1 mL 1 mL 704996 03/05/26 21:43 N5Y3 EET CAL 4 Instrument ID: GC52A
Total/NA Prep 3546 10.29 g 10 mL 704317 03/04/26 12:39 C5G3 EET CAL 4 Total/NA Analysis 8141B 1 1 mL 1 mL 710088 03/18/26 04:33 UJ3K EET CAL 4 Instrument ID: GC68
Total/NA Prep Auto Shaker 2.05 g 5 mL 703587 03/03/26 10:21 UGM4 EET CAL 4 Total/NA Analysis 8321B 1 0.5 mL 1 mL 704303 03/04/26 14:39 CG EET CAL 4 Instrument ID: LCTQ3
Eurofins Calscience

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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-1-15.0 Lab Sample ID: 570-269712-15 Date Collected: 02/28/26 15:20 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 3051A 704833 03/05/26 10:27 M2KZ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 0.4629 g 50 mL
Total/NA Analysis 6020B 5 706069 03/07/26 02:39 P1R EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.53 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 11:19 JP8N EET CAL 4 Instrument ID: HG9
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-SB-9-8.5 Lab Sample ID: 570-269712-16 Date Collected: 03/01/26 09:25 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.56 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 22:02 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.04 g 2 mL 708773 03/13/26 10:04 XG8M EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 709875 03/16/26 16:48 J7WE EET CAL 4 Instrument ID: GCMSCCC
Total/NA Prep 5030C 5.11 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 17:48 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.02 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 17:04 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3051A 0.5736 g 50 mL 704833 03/05/26 10:27 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 706069 03/07/26 02:53 P1R EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.50 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 12:19 JP8N EET CAL 4 Instrument ID: HG9
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-SB-7-2.5 Lab Sample ID: 570-269712-17 Date Collected: 03/01/26 09:41 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 4.735 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 22:23 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.24 g 2 mL 704242 03/04/26 17:34 C5G3 EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 704919 03/05/26 21:19 PQS1 EET CAL 4 Instrument ID: GCMSSS
Eurofins Calscience

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Lab Chronicle
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Client Sample ID: EKI-SB-7-2.5 Lab Sample ID: 570-269712-17 Date Collected: 03/01/26 09:41 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5030C 705503 03/06/26 09:13 W4LC EET CAL 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 8015C 1 5 g 5 mL 705367 03/06/26 18:11 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.20 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 17:31 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3051A 0.4652 g 50 mL 704833 03/05/26 10:27 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 706069 03/07/26 02:55 P1R EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.53 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 12:21 JP8N EET CAL 4 Instrument ID: HG9
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Client Sample ID: EKI-SB-8-1.5 Lab Sample ID: 570-269712-18 Date Collected: 03/01/26 09:38 Matrix: Solid
Date Received: 03/02/26 11:45
Prep 5035 703672 03/03/26 12:03 X7LQ EET CAL 4
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 4.103 g 5 mL
Total/NA Analysis 8260B 1 5 g 5 mL 705634 03/06/26 22:44 AJ4K EET CAL 4 Instrument ID: GCMSGGG
Total/NA Prep 3546 20.12 g 2 mL 708773 03/13/26 10:04 XG8M EET CAL 4 Total/NA Analysis 8270C 1 1 mL 1 mL 709875 03/16/26 17:11 J7WE EET CAL 4 Instrument ID: GCMSCCC
Total/NA Prep 5030C 5.04 g 5 mL 705503 03/06/26 09:13 W4LC EET CAL 4 Total/NA Analysis 8015C 1 5 g 5 mL 705367 03/06/26 18:34 W4LC EET CAL 4 Instrument ID: GC75
Total/NA Prep Rotary Shaker 10.08 g 10 mL 704828 03/05/26 10:16 S3HK EET CAL 4 Total/NA Analysis 8015C 1 10 mL 10 mL 706273 03/09/26 17:58 TR8L EET CAL 4 Instrument ID: GC69A
Total/NA Prep 3051A 0.5028 g 50 mL 704833 03/05/26 10:27 M2KZ EET CAL 4 Total/NA Analysis 6020B 5 706069 03/07/26 02:14 P1R EET CAL 4 Instrument ID: ICPMS10
Total/NA Prep 7471B 0.52 g 50 mL 704245 03/04/26 10:36 VCN7 EET CAL 4 Total/NA Analysis 7471B 1 704981 03/05/26 12:22 JP8N EET CAL 4 Instrument ID: HG9
Total/NA Analysis 2540G 1 704039 03/03/26 18:13 N9ZN EET CAL 4 Instrument ID: MOI6
Laboratory References:

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

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Accreditation/Certification Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Laboratory: Eurofins Calscience
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.

Authority Program Identification Number Expiration Date California State 3082 07-31-26
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification.

Analysis Method Prep Method Matrix Analyte
2540G Solid Percent Moisture
8081B 3546 Solid alpha-Chlordane
8081B 3546 Solid gamma-Chlordane
8141B 3546 Solid Bolstar
8141B 3546 Solid Coumaphos
8141B 3546 Solid Demeton-o/s
8141B 3546 Solid Ethoprop
8141B 3546 Solid Fensulfothion
8141B 3546 Solid Fenthion
8141B 3546 Solid Merphos
8141B 3546 Solid Mevinphos
8141B 3546 Solid Naled
8141B 3546 Solid Tokuthion
8141B 3546 Solid Trichloronate
8260B 5035 Solid 1,1,2-Trichloro-1,2,2-trifluoroethane
8260B 5035 Solid 1,1-Dichloropropene
8260B 5035 Solid 1,2,3-Trichlorobenzene
8260B 5035 Solid 1,2,4-Trimethylbenzene
8260B 5035 Solid 1,3,5-Trimethylbenzene
8260B 5035 Solid 1,3-Dichloropropane
8260B 5035 Solid 2,2-Dichloropropane
8260B 5035 Solid 2-Butanone (MEK)
8260B 5035 Solid 2-Chlorotoluene
8260B 5035 Solid 2-Hexanone
8260B 5035 Solid Acetone
8260B 5035 Solid Ethanol
8260B 5035 Solid Isopropylbenzene
8260B 5035 Solid p-Isopropyltoluene
8260B 5035 Solid Vinyl acetate
8270C 3546 Solid 1,2,4-Trichlorobenzene
8270C 3546 Solid 1-Methylnaphthalene
8270C 3546 Solid 2,4,5-Trichlorophenol
8270C 3546 Solid 2,4,6-Trichlorophenol
8270C 3546 Solid 2-Methylphenol
8270C 3546 Solid 3/4-Methylphenol
8270C 3546 Solid 4,6-Dinitro-2-methylphenol
8270C 3546 Solid Azobenzene
8270C 3546 Solid bis(2 chloro-1-methylethyl) ether
8270C 3546 Solid Hexachloro-1,3-butadiene
8270C 3546 Solid Hexachlorobenzene
8270C 3546 Solid Hexachlorocyclopentadiene
8270C 3546 Solid Hexachloroethane
8270C 3546 Solid Phenol
8270C 3546 Solid Pyrene
8270C 3546 Solid Pyridine
Eurofins Calscience

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4703
Accreditation/Certification Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Laboratory: Eurofins Calscience (Continued)
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.

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

Analysis Method Prep Method Matrix Analyte
8321B Auto Shaker Solid 2,4,5-T
8321B Auto Shaker Solid 2,4,5-TP (Silvex)
8321B Auto Shaker Solid 2,4-D
8321B Auto Shaker Solid 2,4-DB
8321B Auto Shaker Solid Dalapon
8321B Auto Shaker Solid Dicamba
8321B Auto Shaker Solid Dichlorprop
8321B Auto Shaker Solid Dinoseb
8321B Auto Shaker Solid MCPA
8321B Auto Shaker Solid MCPP
Oregon NELAP 4175 02-02-27
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification.

Analysis Method Prep Method Matrix Analyte
2540G Solid Percent Moisture
Eurofins Calscience

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Method Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Method Method Description Protocol Laboratory
8260B Volatile Organic Compounds (GC/MS) SW846 EET CAL 4 8270C Semivolatile Organic Compounds (GC/MS) SW846 EET CAL 4 8015C Gasoline Range Organics (GRO) (GC) SW846 EET CAL 4 8015C Diesel Range Organics (DRO) (GC) EPA EET CAL 4
8081B Organochlorine Pesticides (GC) SW846 EET CAL 4
8141B Organophosphorous Compounds by Gas Chromatography, Capillary Column Technique SW846 EET CAL 4 8321B Herbicides (LC/MS) SW846 EET CAL 4
6020B Metals (ICP/MS) SW846 EET CAL 4
7471B Mercury (CVAA) SW846 EET CAL 4
2540G Percent Moisture SM EET CAL 4
3051A Preparation, Metals, Microwave Assisted SW846 EET CAL 4 3546 Microwave Extraction SW846 EET CAL 4
5030C Purge and Trap SW846 EET CAL 4
5035 Closed System Purge and Trap SW846 EET CAL 4
7471B Preparation, Mercury SW846 EET CAL 4
Auto Shaker Wrist Action Shaker Extraction Technique None EET CAL 4 Rotary Shaker Rotary Shaker Extraction None EET CAL 4
Protocol References:

EPA = US Environmental Protection Agency
None = None
SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.

Laboratory References:

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

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4705
Sample Summary
Client: EKI Environment & Water Inc Job ID: 570-269712-1 Project/Site: Borrmann Steel Company
Lab Sample ID Client Sample ID Matrix Collected Received Sample Origin 570-269712-1 EKI-SB-10-0.5 Solid 03/01/26 13:21 03/02/26 11:45 California 570-269712-2 EKI-SB-10-2.0 Solid 03/01/26 13:24 03/02/26 11:45 California 570-269712-3 EKI-SB-10-5.0 Solid 03/01/26 13:28 03/02/26 11:45 California 570-269712-4 EKI-SB-1-5.5 Solid 02/28/26 15:05 03/02/26 11:45 California 570-269712-5 EKI-SB-2-3.0 Solid 03/01/26 10:59 03/02/26 11:45 California 570-269712-6 EKI-SB-3-5.5 Solid 03/01/26 11:40 03/02/26 11:45 California 570-269712-7 EKI-SB-4-5.5 Solid 03/01/26 12:11 03/02/26 11:45 California 570-269712-8 EKI-SB-5-6.0 Solid 03/01/26 12:42 03/02/26 11:45 California 570-269712-9 EKI-SB-6-4.5 Solid 03/01/26 13:09 03/02/26 11:45 California 570-269712-10 EKI-DB-2-7.0 Solid 02/28/26 09:40 03/02/26 11:45 California 570-269712-11 EKI-DB-2-15.0 Solid 02/28/26 09:55 03/02/26 11:45 California 570-269712-12 EKI-UST-1-8.0 Solid 02/28/26 11:00 03/02/26 11:45 California 570-269712-13 EKI-UST-1-15.0 Solid 02/28/26 11:10 03/02/26 11:45 California 570-269712-14 EKI-SB-1-7.0 Solid 02/28/26 15:12 03/02/26 11:45 California 570-269712-15 EKI-SB-1-15.0 Solid 02/28/26 15:20 03/02/26 11:45 California 570-269712-16 EKI-SB-9-8.5 Solid 03/01/26 09:25 03/02/26 11:45 California 570-269712-17 EKI-SB-7-2.5 Solid 03/01/26 09:41 03/02/26 11:45 California 570-269712-18 EKI-SB-8-1.5 Solid 03/01/26 09:38 03/02/26 11:45 California Eurofins Calscience

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4706

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4707

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4708

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4709
Login Sample Receipt Checklist
Client: EKI Environment & Water Inc Job Number: 570-269712-1 Login Number: 269712
Question Answer Comment
Creator: Patel, Jayesh
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. True Samples are received within Holding Time (excluding tests with immediate True HTs)
Sample containers have legible labels. True
Containers are not broken or leaking. True
Sample collection date/times are provided. True
Appropriate sample containers are used. True
Sample bottles are completely filled. True
Sample Preservation Verified. True
There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs
Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4").

Multiphasic samples are not present. True
Samples do not require splitting or compositing. True
Residual Chlorine Checked. N/A
Eurofins Calscience Page 155 of 155 3/18/2026
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4710

ANALYTICAL REPORT

PREPARED FOR
Attn: Julia Hernandez
EKI Environment & Water Inc
17880 Fitch
Irvine, California 92614
Generated 3/12/2026 4:34:36 PM

JOB DESCRIPTION
Borrmann Steel Company

JOB NUMBER
570-269739-1
See page two for job notes and contact information.

Tustin CA 92780
Suite 100
2841 Dow Avenue
Eurofins Calscience

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Eurofins Calscience
Eurofins Calscience is a laboratory within Eurofins Environment Testing Southwest, LLC, a company within Eurofins Environment Testing Group of Companies Job Notes
This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins Calscience Project Manager.

Authorization
Generated
3/12/2026 4:34:36 PM
Authorized for release by
Erick Ovalle, Project Manager
[email protected]
(657)210-6331

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Table of Contents
Client: EKI Environment & Water Inc
Project/Site: Borrmann Steel Company
Laboratory Job ID: 570-269739-1

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Eurofins Calscience
3/12/2026
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 1 2
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4713
Definitions/Glossary
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Qualifiers

GC/MS VOA
Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.

Qualifier
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

GC Semi VOA
Qualifier Description
B Compound was found in the blank and sample.

Qualifier
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

Metals
Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.

Qualifier
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

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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4714
Job Narrative
570-269739-1
The analytical test results presented in this report meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page, unless otherwise noted. Data qualifiers and/or narrative comments are included to explain any exceptions, if applicable. Regulated compliance samples (e.g. SDWA, NPDES) must comply with associated agency requirements/permits.
· Matrix-specific batch QC (e.g., MS, MSD, SD) may not be reported when insufficient sample volume is available or when sitespecific QC samples are not submitted. In such cases, a Laboratory Control Sample Duplicate (LCSD) may be analyzed to provide precision data for the batch.
· For samples analyzed using surrogate and/or isotope dilution analytes, any recoveries falling outside of established acceptance criteria are re-prepared and/or re-analyzed to confirm results, unless the deviation is due to sample dilution or otherwise explained in the case narrative.

Receipt
The sample was received on 3/2/2026 11:45 AM. Unless otherwise noted below, the sample arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 1.8°C.

GC/MS VOA
Method 8260B: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for the following sample associated with preparation batch 570-704441 and analytical batch 570-704464 were outside control limits: (570-269739-D-1-B MS) and (570-269739-D-1-C MSD). The associated laboratory control sample (LCS) recovery met acceptance criteria.

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

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

Diesel Range Organics
Method 8015C: The method blank for preparation batch 570-705060 and analytical batch 570-706159 contained ORO (C23-C40) above the method detection limit. This target analyte concentration was less than the reporting limit (RL) in the method blank; therefore, re-extraction and/or re-analysis of samples was not performed.

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

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

Metals
Method 6020B: The serial dilution performed for the following sample associated with batch 570-706703 was outside control limits:
(570-269739-B-1-F SD)
Method 6020B: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 570-706167 and analytical batch 570-706703 were outside control limits for one or more analytes. See QC Sample Results for detail. Sample matrix interference and/or non-homogeneity are suspected because the associated laboratory control sample (LCS) recovery is within acceptance limits.

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

Case Narrative
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project: Borrmann Steel Company
Eurofins Calscience
Job ID: 570-269739-1 Eurofins Calscience

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Detection Summary
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Client Sample ID: IDW-03012026 Lab Sample ID: 570-269739-1 1,2,4-Trimethylbenzene
RL

2.0 ug/Kg
MDL

0.28 Analyte Result Qualifier Unit Dil Fac D Method Prep Type J0.49 1 8260B Total/NA
Acetone 10 J 20 ug/Kg9.8 1 8260B Total/NA
Ethylbenzene 0.69 J 1.0 0.21 ug/Kg 1 8260B Total/NA
o-Xylene 2.8 1.0 0.25 ug/Kg 1 8260B Total/NA
m,p-Xylene 3.9 2.0 0.47 ug/Kg 1 8260B Total/NA
Toluene 0.42 J 1.0 0.27 ug/Kg 1 8260B Total/NA
Xylenes, Total 6.7 2.0 0.60 ug/Kg 1 8260B Total/NA
Gasoline Range Organics (C4-C12) 0.11 0.10 0.044 mg/Kg 1 8015C Total/NA DRO (C13-C22) 25 4.9 4.3 mg/Kg 1 8015C Total/NA
ORO (C23-C40) 350 B 25 4.3 mg/Kg 1 8015C Total/NA
Antimony 0.607 F1 0.494 0.288 mg/Kg 5 6020B Total/NA
Arsenic 3.00 0.494 0.220 mg/Kg 5 6020B Total/NA
Barium 152 0.494 0.323 mg/Kg 5 6020B Total/NA
Beryllium 0.318 J 0.494 0.216 mg/Kg 5 6020B Total/NA
Cadmium 0.174 J 0.494 0.165 mg/Kg 5 6020B Total/NA
Chromium 31.2 0.494 0.306 mg/Kg 5 6020B Total/NA
Cobalt 9.55 0.494 0.184 mg/Kg 5 6020B Total/NA
Copper 23.5 0.494 0.197 mg/Kg 5 6020B Total/NA
Lead 7.27 0.494 0.186 mg/Kg 5 6020B Total/NA
Molybdenum 5.47 0.494 0.276 mg/Kg 5 6020B Total/NA
Nickel 15.6 0.494 0.279 mg/Kg 5 6020B Total/NA
Selenium 1.11 0.494 0.422 mg/Kg 5 6020B Total/NA
Vanadium 47.5 0.494 0.307 mg/Kg 5 6020B Total/NA
Zinc 93.3 4.94 2.06 mg/Kg 5 6020B Total/NA
Eurofins Calscience
This Detection Summary does not include radiochemical test results.

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Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: SW846 8260B - Volatile Organic Compounds (GC/MS) Client Sample ID: IDW-03012026 Lab Sample ID: 570-269739-1 Date Collected: 03/01/26 14:00 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 1.0 0.29 ug/Kg 03/04/26 15:51 03/04/26 21:55 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1,2-Tetrachloroethane
1,1,1-Trichloroethane ND 1.0 0.23 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,1,2,2-Tetrachloroethane ND 2.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 0.46 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,1,2-Trichloroethane ND 1.0 0.46 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,1-Dichloroethane ND 1.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,1-Dichloroethene ND 1.0 0.26 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,1-Dichloropropene ND 2.0 0.39 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2,3-Trichlorobenzene ND 2.0 0.37 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2,3-Trichloropropane ND 2.0 0.42 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2,4-Trichlorobenzene ND 2.0 0.41 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2,4-Trimethylbenzene 0.49 J 2.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2-Dibromo-3-Chloropropane ND 10 3.3 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2-Dibromoethane ND 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2-Dichlorobenzene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2-Dichloroethane ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2-Dichloropropane ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,3,5-Trimethylbenzene ND 2.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,3-Dichlorobenzene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,3-Dichloropropane ND 1.0 0.29 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,4-Dichlorobenzene ND 1.0 0.31 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 2,2-Dichloropropane ND 5.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 2-Butanone (MEK) ND 20 4.5 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 2-Chlorotoluene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 2-Hexanone ND 20 3.1 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 4-Chlorotoluene ND 1.0 0.24 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 4-Methyl-2-pentanone (MIBK) ND 20 2.9 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Acetone 10 J 20 9.8 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Benzene ND 1.0 0.26 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Bromobenzene ND 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Bromochloromethane ND 2.0 0.44 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Bromodichloromethane ND 1.0 0.32 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Bromoform ND 5.0 1.3 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Bromomethane ND 20 6.5 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 cis-1,2-Dichloroethene ND 1.0 0.34 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 cis-1,3-Dichloropropene ND 1.0 0.35 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Carbon disulfide ND 10 0.40 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Carbon tetrachloride ND 1.0 0.30 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Chlorobenzene ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Chloroethane ND 2.0 0.32 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Chloroform ND 1.0 0.59 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Chloromethane ND 20 1.5 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Dibromochloromethane ND 2.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Dibromomethane ND 1.0 0.30 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Dichlorodifluoromethane ND 2.0 0.45 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Ethylbenzene 0.69 J 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Isopropylbenzene ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Methylene Chloride ND 10 3.1 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 0.19 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Eurofins Calscience

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4717
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: SW846 8260B - Volatile Organic Compounds (GC/MS) (Continued) Client Sample ID: IDW-03012026 Lab Sample ID: 570-269739-1 Date Collected: 03/01/26 14:00 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 10 3.9 ug/Kg 03/04/26 15:51 03/04/26 21:55 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Naphthalene
n-Butylbenzene ND 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 N-Propylbenzene ND 2.0 0.26 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 o-Xylene 2.8 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 m,p-Xylene 3.9 2.0 0.47 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 p-Isopropyltoluene ND 1.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 sec-Butylbenzene ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Styrene ND 1.0 0.32 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 trans-1,2-Dichloroethene ND 1.0 0.30 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 trans-1,3-Dichloropropene ND 2.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 tert-Butylbenzene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Tetrachloroethene ND 1.0 0.22 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Toluene 0.42 J 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Trichloroethene ND 2.0 0.38 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Trichlorofluoromethane ND 10 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Vinyl acetate ND F1 10 3.9 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Vinyl chloride ND 1.0 0.38 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 Xylenes, Total 6.7 2.0 0.60 ug/Kg 03/04/26 15:51 03/04/26 21:55 1 1,2-Dichloroethane-d4 (Surr) 109 32 - 179 03/04/26 15:51 03/04/26 21:55 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 4-Bromofluorobenzene (Surr) 102 80 - 120 03/04/26 15:51 03/04/26 21:55 1 Dibromofluoromethane (Surr) 103 58 - 147 03/04/26 15:51 03/04/26 21:55 1 Toluene-d8 (Surr) 100 80 - 120 03/04/26 15:51 03/04/26 21:55 1 Eurofins Calscience

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4718
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: SW846 8015C - Gasoline Range Organics (GRO) (GC) Client Sample ID: IDW-03012026 Lab Sample ID: 570-269739-1 Date Collected: 03/01/26 14:00 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.11 0.10 0.044 mg/Kg 03/07/26 11:46 03/07/26 18:24 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Gasoline Range Organics
(C4-C12)
4-Bromofluorobenzene (Surr) 84 42 - 126 03/07/26 11:46 03/07/26 18:24 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4719
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: EPA 8015C - Diesel Range Organics (DRO) (GC)
Client Sample ID: IDW-03012026 Lab Sample ID: 570-269739-1 Date Collected: 03/01/26 14:00 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
25 4.9 4.3 mg/Kg 03/05/26 16:20 03/09/26 03:16 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac DRO (C13-C22)
ORO (C23-C40) 350 B 25 4.3 mg/Kg 03/05/26 16:20 03/09/26 03:16 1 n-Octacosane (Surr) 89 29 - 160 03/05/26 16:20 03/09/26 03:16 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience

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4720
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: SW846 8082A - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Client Sample ID: IDW-03012026 Lab Sample ID: 570-269739-1 Date Collected: 03/01/26 14:00 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL
ND 49 39 ug/Kg 03/06/26 15:48 03/09/26 13:14 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Aroclor-1016
Aroclor-1221 ND 49 39 ug/Kg 03/06/26 15:48 03/09/26 13:14 1 Aroclor-1232 ND 49 39 ug/Kg 03/06/26 15:48 03/09/26 13:14 1 Aroclor-1242 ND 49 39 ug/Kg 03/06/26 15:48 03/09/26 13:14 1 Aroclor-1248 ND 49 39 ug/Kg 03/06/26 15:48 03/09/26 13:14 1 Aroclor-1254 ND 49 25 ug/Kg 03/06/26 15:48 03/09/26 13:14 1 Aroclor-1260 ND 49 25 ug/Kg 03/06/26 15:48 03/09/26 13:14 1 DCB Decachlorobiphenyl (Surr) 107 20 - 120 03/06/26 15:48 03/09/26 13:14 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Tetrachloro-m-xylene (Surr) 98 25 - 120 03/06/26 15:48 03/09/26 13:14 1 Eurofins Calscience

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4721
Client Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: SW846 6020B - Metals (ICP/MS)
Client Sample ID: IDW-03012026 Lab Sample ID: 570-269739-1 Date Collected: 03/01/26 14:00 Matrix: Solid
Date Received: 03/02/26 11:45
RL MDL

0.607 F1 0.494 0.288 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Antimony
Arsenic 3.00 0.494 0.220 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Barium 152 0.494 0.323 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Beryllium 0.318 J 0.494 0.216 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Cadmium 0.174 J 0.494 0.165 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Chromium 31.2 0.494 0.306 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Cobalt 9.55 0.494 0.184 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Copper 23.5 0.494 0.197 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Lead 7.27 0.494 0.186 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Molybdenum 5.47 0.494 0.276 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Nickel 15.6 0.494 0.279 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Selenium 1.11 0.494 0.422 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Silver ND 0.987 0.515 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Thallium ND F1 0.494 0.154 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Vanadium 47.5 0.494 0.307 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Zinc 93.3 4.94 2.06 mg/Kg 03/09/26 09:01 03/09/26 22:51 5 Eurofins Calscience

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Surrogate Summary
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (32-179) (80-120) (58-147) (80-120)

DCA BFB DBFM TOL
570-269739-1 109 102 103 100
Percent Surrogate Recovery (Acceptance Limits)
IDW-03012026
570-269739-1 MS IDW-03012026 106 99 102 97
570-269739-1 MSD IDW-03012026 103 95 101 97
LCS 570-704441/1-A Lab Control Sample 107 100 102 99
LCSD 570-704441/2-A Lab Control Sample Dup 100 100 101 98 MB 570-704441/5-A Method Blank 109 99 104 100
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
Method: 8015C - Gasoline Range Organics (GRO) (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (42-126)
BFB1
570-269739-1 84
Percent Surrogate Recovery (Acceptance Limits)
IDW-03012026
LCS 570-705961/1-A Lab Control Sample 78
LCSD 570-705961/2-A Lab Control Sample Dup 88
MB 570-705961/3-A Method Blank 87
Surrogate Legend
BFB = 4-Bromofluorobenzene (Surr)
Method: 8015C - Diesel Range Organics (DRO) (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (29-160)
OTCSN1
570-269739-1 89
Percent Surrogate Recovery (Acceptance Limits)
IDW-03012026
LCS 570-705060/2-A Lab Control Sample 96
LCSD 570-705060/3-A Lab Control Sample Dup 103
MB 570-705060/1-A Method Blank 98
Surrogate Legend
OTCSN = n-Octacosane (Surr)
Method: 8082A - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (20-120) (25-120)
DCB1 TCX1
570-269739-1 107 98
Percent Surrogate Recovery (Acceptance Limits)
IDW-03012026
570-269739-1 MS IDW-03012026 83 84
570-269739-1 MSD IDW-03012026 106 98
LCS 570-705659/6-A Lab Control Sample 111 101
LCSD 570-705659/7-A Lab Control Sample Dup 110 99
Eurofins Calscience

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Surrogate Summary
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8082A - Polychlorinated Biphenyls (PCBs) by Gas Chromatography (Continued) Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (20-120) (25-120)
DCB1 TCX1
MB 570-705659/1-A 104 100
Percent Surrogate Recovery (Acceptance Limits)
Method Blank
Surrogate Legend
DCB = DCB Decachlorobiphenyl (Surr)
TCX = Tetrachloro-m-xylene (Surr)
Eurofins Calscience

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4724
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: MB 570-704441/5-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
RL MDL
1,1,1,2-Tetrachloroethane ND 1.0 0.29 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 0.23 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,1,2,2-Tetrachloroethane ND 2.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 0.46 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,1,2-Trichloroethane ND 1.0 0.46 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,1-Dichloroethane ND 1.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,1-Dichloroethene ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,1-Dichloropropene ND 2.0 0.39 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2,3-Trichlorobenzene ND 2.0 0.38 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2,3-Trichloropropane ND 2.0 0.42 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2,4-Trichlorobenzene ND 2.0 0.41 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2,4-Trimethylbenzene ND 2.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2-Dibromo-3-Chloropropane ND 10 3.3 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2-Dibromoethane ND 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2-Dichlorobenzene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2-Dichloroethane ND 1.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2-Dichloropropane ND 1.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,3,5-Trimethylbenzene ND 2.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,3-Dichlorobenzene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,3-Dichloropropane ND 1.0 0.30 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,4-Dichlorobenzene ND 1.0 0.31 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 2,2-Dichloropropane ND 5.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 2-Butanone (MEK) ND 20 4.5 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 2-Chlorotoluene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 2-Hexanone ND 20 3.1 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 4-Chlorotoluene ND 1.0 0.24 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 4-Methyl-2-pentanone (MIBK) ND 20 2.9 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Acetone ND 20 9.8 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Benzene ND 1.0 0.26 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Bromobenzene ND 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Bromochloromethane ND 2.0 0.44 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Bromodichloromethane ND 1.0 0.33 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Bromoform ND 5.0 1.3 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Bromomethane ND 20 6.6 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 cis-1,2-Dichloroethene ND 1.0 0.34 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 cis-1,3-Dichloropropene ND 1.0 0.35 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Carbon disulfide ND 10 0.40 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Carbon tetrachloride ND 1.0 0.30 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Chlorobenzene ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Chloroethane ND 2.0 0.32 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Chloroform ND 1.0 0.59 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Chloromethane ND 20 1.5 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Dibromochloromethane ND 2.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Dibromomethane ND 1.0 0.31 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Dichlorodifluoromethane ND 2.0 0.45 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Ethylbenzene ND 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Isopropylbenzene ND 1.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Methylene Chloride ND 10 3.1 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Eurofins Calscience

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4725
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 570-704441/5-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
RL MDL
Methyl-t-Butyl Ether (MTBE) ND 2.0 0.19 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Naphthalene ND 10 3.9 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 n-Butylbenzene ND 1.0 0.21 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 N-Propylbenzene ND 2.0 0.26 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 o-Xylene ND 1.0 0.26 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 m,p-Xylene ND 2.0 0.47 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 p-Isopropyltoluene ND 1.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 sec-Butylbenzene ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Styrene ND 1.0 0.32 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 trans-1,2-Dichloroethene ND 1.0 0.30 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 trans-1,3-Dichloropropene ND 2.0 0.28 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 tert-Butylbenzene ND 1.0 0.25 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Tetrachloroethene ND 1.0 0.22 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Toluene ND 1.0 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Trichloroethene ND 2.0 0.39 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Trichlorofluoromethane ND 10 0.27 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Vinyl acetate ND 10 3.9 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Vinyl chloride ND 1.0 0.38 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 Xylenes, Total ND 2.0 0.60 ug/Kg 03/04/26 15:51 03/04/26 21:14 1 1,2-Dichloroethane-d4 (Surr) 109 32 - 179 03/04/26 21:14 1 MB MB
Surrogate
03/04/26 15:51
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
4-Bromofluorobenzene (Surr) 99 80 - 120 03/04/26 15:51 03/04/26 21:14 1 Dibromofluoromethane (Surr) 104 58 - 147 03/04/26 15:51 03/04/26 21:14 1 Toluene-d8 (Surr) 100 80 - 120 03/04/26 15:51 03/04/26 21:14 1 Lab Sample ID: LCS 570-704441/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
1,1,1,2-Tetrachloroethane 50.0 50.56 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
101 80 - 125
D %Rec
%Rec
Limits
1,1,1-Trichloroethane 50.0 52.91 ug/Kg 106 78 - 130
1,1,2,2-Tetrachloroethane 50.0 50.18 ug/Kg 100 80 - 124 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 49.78 ug/Kg 100 73 - 130
1,1,2-Trichloroethane 50.0 50.57 ug/Kg 101 80 - 123
1,1-Dichloroethane 50.0 52.69 ug/Kg 105 79 - 124
1,1-Dichloroethene 50.0 50.06 ug/Kg 100 74 - 132
1,1-Dichloropropene 50.0 52.79 ug/Kg 106 78 - 130
1,2,3-Trichlorobenzene 50.0 49.91 ug/Kg 100 80 - 123
1,2,3-Trichloropropane 50.0 48.37 ug/Kg 97 79 - 120
1,2,4-Trichlorobenzene 50.0 48.20 ug/Kg 96 80 - 125
1,2,4-Trimethylbenzene 50.0 48.41 ug/Kg 97 80 - 124
1,2-Dibromo-3-Chloropropane 50.0 48.04 ug/Kg 96 67 - 120 1,2-Dibromoethane 50.0 51.67 ug/Kg 103 80 - 120
1,2-Dichlorobenzene 50.0 49.50 ug/Kg 99 80 - 120
1,2-Dichloroethane 50.0 52.49 ug/Kg 105 77 - 120
1,2-Dichloropropane 50.0 51.02 ug/Kg 102 80 - 126
Eurofins Calscience

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4726
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 570-704441/1-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
1,3,5-Trimethylbenzene 50.0 49.76 ug/Kg
Analyte

LCS LCS
Result Qualifier Unit
Spike
Added
100 80 - 121
D %Rec
%Rec
Limits
1,3-Dichlorobenzene 50.0 48.42 ug/Kg 97 80 - 120
1,3-Dichloropropane 50.0 52.51 ug/Kg 105 80 - 120
1,4-Dichlorobenzene 50.0 47.72 ug/Kg 95 80 - 120
2,2-Dichloropropane 50.0 53.47 ug/Kg 107 73 - 135
2-Butanone (MEK) 50.0 52.36 ug/Kg 105 67 - 136
2-Chlorotoluene 50.0 49.60 ug/Kg 99 80 - 120
2-Hexanone 50.0 45.60 ug/Kg 91 70 - 137
4-Chlorotoluene 50.0 47.95 ug/Kg 96 80 - 121
4-Methyl-2-pentanone (MIBK) 50.0 49.11 ug/Kg 98 74 - 124 Acetone 50.0 45.35 ug/Kg 91 61 - 142
Benzene 50.0 51.84 ug/Kg 104 80 - 120
Bromobenzene 50.0 50.91 ug/Kg 102 80 - 120
Bromochloromethane 50.0 52.51 ug/Kg 105 80 - 120
Bromodichloromethane 50.0 50.96 ug/Kg 102 80 - 125
Bromoform 50.0 52.26 ug/Kg 105 74 - 138
Bromomethane 50.0 42.02 ug/Kg 84 58 - 136
cis-1,2-Dichloroethene 50.0 52.87 ug/Kg 106 80 - 124
cis-1,3-Dichloropropene 50.0 53.51 ug/Kg 107 80 - 123
Carbon disulfide 50.0 50.81 ug/Kg 102 68 - 128
Carbon tetrachloride 50.0 54.52 ug/Kg 109 75 - 140
Chlorobenzene 50.0 49.06 ug/Kg 98 80 - 120
Chloroethane 50.0 44.73 ug/Kg 89 76 - 137
Chloroform 50.0 51.59 ug/Kg 103 80 - 121
Chloromethane 50.0 40.89 ug/Kg 82 74 - 133
Dibromochloromethane 50.0 51.01 ug/Kg 102 80 - 132
Dibromomethane 50.0 51.16 ug/Kg 102 80 - 120
Dichlorodifluoromethane 50.0 43.99 ug/Kg 88 63 - 146
Ethylbenzene 50.0 48.53 ug/Kg 97 80 - 120
Isopropylbenzene 50.0 49.45 ug/Kg 99 80 - 122
Methylene Chloride 50.0 48.84 ug/Kg 98 74 - 120
Methyl-t-Butyl Ether (MTBE) 50.0 52.72 ug/Kg 105 79 - 123 Naphthalene 50.0 47.85 ug/Kg 96 79 - 121
n-Butylbenzene 50.0 49.01 ug/Kg 98 79 - 131
N-Propylbenzene 50.0 49.83 ug/Kg 100 80 - 122
o-Xylene 50.0 49.83 ug/Kg 100 80 - 120
m,p-Xylene 100 98.29 ug/Kg 98 80 - 120
p-Isopropyltoluene 50.0 47.90 ug/Kg 96 80 - 126
sec-Butylbenzene 50.0 49.02 ug/Kg 98 80 - 125
Styrene 50.0 48.92 ug/Kg 98 80 - 120
trans-1,2-Dichloroethene 50.0 50.77 ug/Kg 102 75 - 123
trans-1,3-Dichloropropene 50.0 51.21 ug/Kg 102 80 - 124 tert-Butylbenzene 50.0 48.31 ug/Kg 97 80 - 124
Tetrachloroethene 50.0 49.86 ug/Kg 100 80 - 122
Toluene 50.0 49.51 ug/Kg 99 80 - 120
Trichloroethene 50.0 49.35 ug/Kg 99 80 - 127
Trichlorofluoromethane 50.0 46.31 ug/Kg 93 70 - 144
Vinyl acetate 50.0 54.13 ug/Kg 108 71 - 125
Vinyl chloride 50.0 47.32 ug/Kg 95 79 - 133
Eurofins Calscience

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4727
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) 1,2-Dichloroethane-d4 (Surr) 32 - 179
Surrogate
107

LCS LCS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 100 80 - 120
Dibromofluoromethane (Surr) 102 58 - 147
Toluene-d8 (Surr) 99 80 - 120
Lab Sample ID: LCSD 570-704441/2-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
1,1,1,2-Tetrachloroethane 50.0 48.10 ug/Kg 5 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
96 80 - 125
D %Rec
%Rec
Limits
1,1,1-Trichloroethane 50.0 47.36 ug/Kg 95 78 - 130 11 20 1,1,2,2-Tetrachloroethane 50.0 48.82 ug/Kg 98 80 - 124 3 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 46.67 ug/Kg 93 73 - 130 6 20
1,1,2-Trichloroethane 50.0 49.72 ug/Kg 99 80 - 123 2 20 1,1-Dichloroethane 50.0 48.16 ug/Kg 96 79 - 124 9 20
1,1-Dichloroethene 50.0 49.34 ug/Kg 99 74 - 132 1 20
1,1-Dichloropropene 50.0 47.07 ug/Kg 94 78 - 130 11 20
1,2,3-Trichlorobenzene 50.0 46.48 ug/Kg 93 80 - 123 7 20 1,2,3-Trichloropropane 50.0 46.72 ug/Kg 93 79 - 120 3 20 1,2,4-Trichlorobenzene 50.0 45.43 ug/Kg 91 80 - 125 6 20 1,2,4-Trimethylbenzene 50.0 46.70 ug/Kg 93 80 - 124 4 20 1,2-Dibromo-3-Chloropropane 50.0 47.54 ug/Kg 95 67 - 120 1 20 1,2-Dibromoethane 50.0 49.07 ug/Kg 98 80 - 120 5 20
1,2-Dichlorobenzene 50.0 47.35 ug/Kg 95 80 - 120 4 20
1,2-Dichloroethane 50.0 47.89 ug/Kg 96 77 - 120 9 20
1,2-Dichloropropane 50.0 48.85 ug/Kg 98 80 - 126 4 20
1,3,5-Trimethylbenzene 50.0 47.48 ug/Kg 95 80 - 121 5 20 1,3-Dichlorobenzene 50.0 45.55 ug/Kg 91 80 - 120 6 20
1,3-Dichloropropane 50.0 49.47 ug/Kg 99 80 - 120 6 20
1,4-Dichlorobenzene 50.0 45.50 ug/Kg 91 80 - 120 5 20
2,2-Dichloropropane 50.0 48.31 ug/Kg 97 73 - 135 10 20
2-Butanone (MEK) 50.0 43.23 ug/Kg 86 67 - 136 19 20
2-Chlorotoluene 50.0 45.67 ug/Kg 91 80 - 120 8 20
2-Hexanone 50.0 42.41 ug/Kg 85 70 - 137 7 20
4-Chlorotoluene 50.0 45.31 ug/Kg 91 80 - 121 6 20
4-Methyl-2-pentanone (MIBK) 50.0 49.77 ug/Kg 100 74 - 124 1 20 Acetone 50.0 44.20 ug/Kg 88 61 - 142 3 23
Benzene 50.0 47.46 ug/Kg 95 80 - 120 9 20
Bromobenzene 50.0 48.88 ug/Kg 98 80 - 120 4 20
Bromochloromethane 50.0 50.60 ug/Kg 101 80 - 120 4 20
Bromodichloromethane 50.0 48.17 ug/Kg 96 80 - 125 6 20
Bromoform 50.0 49.66 ug/Kg 99 74 - 138 5 20
Bromomethane 50.0 41.22 ug/Kg 82 58 - 136 2 20
cis-1,2-Dichloroethene 50.0 48.53 ug/Kg 97 80 - 124 9 20 cis-1,3-Dichloropropene 50.0 51.11 ug/Kg 102 80 - 123 5 20 Carbon disulfide 50.0 49.14 ug/Kg 98 68 - 128 3 20
Carbon tetrachloride 50.0 48.35 ug/Kg 97 75 - 140 12 20 Chlorobenzene 50.0 46.44 ug/Kg 93 80 - 120 5 20
Chloroethane 50.0 46.21 ug/Kg 92 76 - 137 3 20
Chloroform 50.0 47.63 ug/Kg 95 80 - 121 8 20
Eurofins Calscience

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15 ATTACHMENT 6 - 3755
4728
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 570-704441/2-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
Chloromethane 50.0 41.49 ug/Kg 1 20
Analyte

LCSD LCSD
Result Qualifier Unit
Spike
Added RPD Limit
RPD
83 74 - 133
D %Rec
%Rec
Limits
Dibromochloromethane 50.0 49.38 ug/Kg 99 80 - 132 3 20
Dibromomethane 50.0 47.97 ug/Kg 96 80 - 120 6 20
Dichlorodifluoromethane 50.0 44.38 ug/Kg 89 63 - 146 1 20 Ethylbenzene 50.0 45.74 ug/Kg 91 80 - 120 6 20
Isopropylbenzene 50.0 47.08 ug/Kg 94 80 - 122 5 20
Methylene Chloride 50.0 49.94 ug/Kg 100 74 - 120 2 20
Methyl-t-Butyl Ether (MTBE) 50.0 53.29 ug/Kg 107 79 - 123 1 20 Naphthalene 50.0 46.39 ug/Kg 93 79 - 121 3 20
n-Butylbenzene 50.0 46.51 ug/Kg 93 79 - 131 5 20
N-Propylbenzene 50.0 46.73 ug/Kg 93 80 - 122 6 20
o-Xylene 50.0 46.83 ug/Kg 94 80 - 120 6 20
m,p-Xylene 100 93.79 ug/Kg 94 80 - 120 5 20
p-Isopropyltoluene 50.0 45.48 ug/Kg 91 80 - 126 5 20
sec-Butylbenzene 50.0 46.82 ug/Kg 94 80 - 125 5 20
Styrene 50.0 46.77 ug/Kg 94 80 - 120 4 20
trans-1,2-Dichloroethene 50.0 49.79 ug/Kg 100 75 - 123 2 20 trans-1,3-Dichloropropene 50.0 48.71 ug/Kg 97 80 - 124 5 20 tert-Butylbenzene 50.0 47.86 ug/Kg 96 80 - 124 1 20
Tetrachloroethene 50.0 47.15 ug/Kg 94 80 - 122 6 20
Toluene 50.0 46.85 ug/Kg 94 80 - 120 6 20
Trichloroethene 50.0 45.91 ug/Kg 92 80 - 127 7 20
Trichlorofluoromethane 50.0 47.25 ug/Kg 94 70 - 144 2 20 Vinyl acetate 50.0 49.86 ug/Kg 100 71 - 125 8 20
Vinyl chloride 50.0 48.12 ug/Kg 96 79 - 133 2 20
1,2-Dichloroethane-d4 (Surr) 32 - 179
Surrogate
100

LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 100 80 - 120
Dibromofluoromethane (Surr) 101 58 - 147
Toluene-d8 (Surr) 98 80 - 120
Lab Sample ID: 570-269739-1 MS Client Sample ID: IDW-03012026 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
1,1,1,2-Tetrachloroethane ND 49.8 44.17 ug/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
89 61 - 129
D %Rec
%Rec
Limits
1,1,1-Trichloroethane ND 49.8 48.34 ug/Kg 97 67 - 125
1,1,2,2-Tetrachloroethane ND 49.8 18.55 ug/Kg 37 20 - 164 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 49.8 46.11 ug/Kg 93 62 - 125
1,1,2-Trichloroethane ND 49.8 46.52 ug/Kg 93 52 - 134
1,1-Dichloroethane ND 49.8 53.76 ug/Kg 108 66 - 125
1,1-Dichloroethene ND 49.8 51.81 ug/Kg 104 60 - 125
1,1-Dichloropropene ND 49.8 47.74 ug/Kg 96 69 - 125
1,2,3-Trichlorobenzene ND 49.8 18.31 ug/Kg 37 20 - 145
1,2,3-Trichloropropane ND 49.8 42.86 ug/Kg 86 53 - 128
1,2,4-Trichlorobenzene ND 49.8 19.68 ug/Kg 40 20 - 146
Eurofins Calscience

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4729
QC Sample Results
Client: EKI Environment & Water Inc Job ID: 570-269739-1 Project/Site: Borrmann Steel Company
Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: 570-269739-1 MS Client Sample ID: IDW-03012026 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 704464 Prep Batch: 704441
1,2,4-Trimethylbenzene 0.49 J 49.8 37.30 ug/Kg
Analyte
MS MS
Result Qualifier Unit
Spike
Added
Sample
Result
Sample
Qualifier
74 51 - 129
D %Rec
%Rec
Limits
1,2-Dibromo-3-Chloropropane ND 49.8 45.40 ug/Kg 91 33 - 126 1,2-Dibromoethane ND 49.8 48.69 ug/Kg 98 65 - 125
1,2-Dichlorobenzene ND 49.8 35.22 ug/Kg 71 47 - 130
1,2-Dichloroethane ND 49.8 47.45 ug/Kg 95 66 - 127
1,2-Dichloropropane ND 49.8 48.48 ug/Kg 97 70 - 125
1,3,5-Trimethylbenzene ND 49.8 33.82 ug/Kg 68 50 - 132
1,3-Dichlorobenzene ND 49.8 34.97 ug/Kg 70 48 - 128
1,3-Dichloropropane ND 49.8 48.90 ug/Kg 98 66 - 125
1,4-Dichlorobenzene ND 49.8 35.64 ug/Kg 72 47 - 127
2,2-Dichloropropane ND 49.8 48.50 ug/Kg 97 61 - 128
2-Butanone (MEK) ND 49.8 48.53 ug/Kg 97 48 - 134
2-Chlorotoluene ND 49.8 36.34 ug/Kg 73 54 - 127
2-Hexanone ND 49.8 44.74 ug/Kg 90 48 - 136
4-Chlorotoluene ND 49.8 38.78 ug/Kg 78 54 - 125
4-Methyl-2-pentanone (MIBK) ND 49.8 48.24 ug/Kg 97 55 - 133 Acetone 10 J 49.8 54.60 ug/Kg 89 30 - 175
Benzene ND 49.8 47.64 ug/Kg 96 70 - 125
Bromobenzene ND 49.8 40.42 ug/Kg 81 57 - 129
Bromochloromethane ND 49.8 51.00 ug/Kg 102 67 - 125
Bromodichloromethane ND 49.8 48.57 ug/Kg 98 64 - 130
Bromoform ND 49.8 49.23 ug/Kg 99 49 - 133
Bromomethane ND 49.8 45.62 ug/Kg 92 30 - 149
cis-1,2-Dichloroethene ND 49.8 50.55 ug/Kg 102 71 - 125 cis-1,3-Dichloropropene ND 49.8 50.23 ug/Kg 101 63 - 126 Carbon disulfide ND 49.8 50.64 ug/Kg 102 53 - 125
Carbon tetrachloride ND 49.8 48.46 ug/Kg 97 60 - 130
Chlorobenzene ND 49.8 42.18 ug/Kg 85 65 - 125
Chloroethane ND 49.8 48.62 ug/Kg 98 51 - 131
Chloroform ND 49.8 48.81 ug/Kg 98 70 - 125
Chloromethane ND 49.8 43.98 ug/Kg 88 43 - 125
Dibromochloromethane ND 49.8 47.79 ug/Kg 96 56 - 132
Dibromomethane ND 49.8 48.77 ug/Kg 98 67 - 127
Dichlorodifluoromethane ND 49.8 50.67 ug/Kg 102 47 - 127 Ethylbenzene 0.69 J 49.8 41.51 ug/Kg 82 64 - 125
Isopropylbenzene ND 49.8 36.17 ug/Kg 73 59 - 129
Methylene Chloride ND 49.8 51.40 ug/Kg 103 60 - 125
Methyl-t-Butyl Ether (MTBE) ND 49.8 52.74 ug/Kg 106 61 - 125 Naphthalene ND 49.8 29.14 ug/Kg 59 25 - 136
n-Butylbenzene ND 49.8 25.03 ug/Kg 50 35 - 135
N-Propylbenzene ND 49.8 34.71 ug/Kg 70 52 - 131
o-Xylene 2.8 49.8 47.75 ug/Kg 90 59 - 128
m,p-Xylene 3.9 99.6 90.16 ug/Kg 87 60 - 125
p-Isopropyltoluene ND 49.8 28.90 ug/Kg 58 46 - 132
sec-Butylbenzene ND 49.8 29.04 ug/Kg 58 47 - 131
Styrene ND 49.8 41.46 ug/Kg 83 58 - 128
trans-1,2-Dichloroethene ND 49.8 52.17 ug/Kg 105 67 - 125 trans-1,3-Dichloropropene ND 49.8 47.81 ug/Kg 96 59 - 132 tert-Butylbenzene ND 49.8 32.45 ug/Kg 65 53 - 126
Eurofins Calscience

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