2021-05-12_REVISION - M2012032 ‎(2)‎

• Permit No: M2012032
• IBM Index Class Name: REVISION
• Doc Date: 5/12/2021
• Doc Name: Adequacy Review Response
• From: Ouray Silver Mines, Inc.
• To: DRMS
• Type & Sequence: TR12
• Email Name: LJW
• Email Name: THM
• Media Type: D
• Archive: No

��� Laboratories, Inc. # ' "
2773 Downhill Drive Steamboat Springs, CO 80487 [phone]
Ouray Silver Mines ACZ Project ID:L65443
NOTE:If the Rec%column is null, the high/low limits are in the same units as the result. If the Rec%column is not null, then the high/low
limits are in%Rec.
ISOPHORONE 50015 49.3 ug/L 99.0 42 124
NAPHTHALENE 50020 36.5 ug/L 73.0 40 121
NITROBENZENE 50005 45.1 ug/L 90.0 45 121
N-NITROSODIMETHYLAMINE 50010 39 ug/L 78.0 33 92
N-NITROSODI-N-PROPYLAMINE 50010 45.6 ug/L 91.0 49 119
N-NITROSODIPHENYLAMINE 50010 47.3 ug/L 95.0 51 123
PENTACHLOROPHENOL 50020 48 ug/L 96.0 35 138
PHENANTHRENE 50005 50.5 ug/L 101.0 59 120
PHENOL 50005 42.8 ug/L 86.0 0 115
PYRENE 50005 50.9 ug/L 102.0 57 126
PYRIDINE 50020 31.4 ug/L 63.0 44 86
2,4,6-TRIBROMOPHENOL(surr) % 97.0 50 125
2-FLUOROBIPHENYL(surr) % 86.9 44 119
2-FLUOROPHENOL(surr) % 74.3 54 100
NITROBENZENE-D5(surr) % 85.6 44 120
PHENOL-D6(surr) % 80.3 47 113
TERPHENYL-D14(surr) % 98.7 50 134
LCSWD Sample ID: WG518607LCSWD PCN/SCN:OPMBNA210414- Analyzed: 05/04/21 12:09
Compound ac Sample Found Units Rec% Lower Upper RPD
1,2,4-TRICHLOROBENZENE 50015 28.2 ug/L 56.0 29 116 10 20
1,2-DICHLOROBENZENE 50000 24.8 ug/L 50.0 32 ill 13 20
1,3-DICHLOROBENZENE 50015 22.5 ug/L 45.0 28 110 14 20
1,4-DICHLOROBENZENE 50005 23 ug/L 46.0 29 112 13 20
1,4-DIOXANE 50050 29.9 ug/L 60.0 55 84 14 20
2,4,5-TRICHLOROPHENOL 50005 42 ug/L 84.0 53 123 15 20
2,4,6-TRICHLOROPHENOL 50015 43.2 ug/L 86.0 43 140 16 20
2,4-DICHLOROPHENOL 50005 40.7 ug/L 81.0 47 121 13 20
2,4-DIMETHYLPHENOL 50005 37.1 ug/L 74.0 31 124 22 20 R1
2,4-DINITROPHENOL 50020 45 ug/L 90.0 23 143 18 20
2,4-DINITROTOLUENE 50005 45.3 ug/L 91.0 57 128 17 20
2,6-DINITROTOLUENE 50010 43 ug/L 86.0 57 124 17 20
2-CHLORONAPHTHALENE 50015 36.7 ug/L 73.0 40 116 16 20
2-CHLOROPHENOL 50005 36.7 ug/L 73.0 38 117 11 20
2-METHYLNAPHTHALENE 50005 36.5 ug/L 73.0 40 121 10 20
2-METHYLPHENOL 50010 37.7 ug/L 75.0 40 110 13 20
2-NITROANILINE 50010 45 ug/L 90.0 55 127 18 20
2-NITROPHENOL 50005 38.5 ug/L 77.0 47 123 14 20
3-8 4-METHYLPHENOL 50025 39 ug/L 78.0 29 110 12 20
3,3-DICHLOROBENZIDINE 50120 U ug/L 0.0 27 129 34 N1
3-NITROANILINE 50010 44 ug/L 88.0 41 128 19 20
4,6-DINITRO-2-METHYLPHENOL 50010 47 ug/L 94.0 44 137 17 20
4-BROMOPHENYL PHENYL ETHER 50005 44.6 ug/L 89.0 55 124 12 20
4-CHLORO-3-METHYLPHENOL 50020 46.1 ug/L 92.0 52 119 13 20
4-CHLOROANILINE 50005 36.7 ug/L 73.0 33 117 26 20 R1
4-CHLOROPHENYL PHENYL ETHER 50005 42.1 ug/L 84.0 53 121 15 20
4-NITROANILINE 50005 45 ug/L 90.0 35 120 18 20
4-NITROPHENOL 50025 44 ug/L 88.0 38 142 17 20
ACENAPHTHENE 50000 39.5 ug/L 79.0 47 122 17 20
L65443-2105101543 Page 13 of 37