2022-02-09_PERMIT FILE - M2021046 ‎(7)‎

• Permit No: M2021046
• IBM Index Class Name: Permit File
• Doc Date: 2/9/2022
• Doc Name Note: Adequacy Response Application Revisions
• Doc Name: Adequacy Review Response
• From: Zephyr Gold USA Ltd
• To: DRMS
• Email Name: TC1
• Email Name: MAC
• Media Type: D
• Archive: No

Table 2.7-2 Groundwater Quality Data
Zephyr G of d USA
Dawson Gold Mine,Fremont County,CO
Baseline Groundwater Q-fi Data
undrater
North 11e11 4uality South Well
unless other.ise I Concentration
noted 1012014 Q1 11112015 Q2 412015 Q'712015 Q,1012015 Q 31202101 612021 Q2 T2021 Q3 "" 1012014 Q1 U42015 Q2 412015 Q3 712015 Q4 1012015 Q`31202101 612021 Q2 T2021 Q3
Aluminum <0.2 <0.2 0.28 <0.2 0.26 ND 6.57 BB 5 <6.2 <0.2 <0.2 0.54 0.36 ND ND NB
Arsenic <0.01 <0.01 <0.01 <0.01 <0.01 ND ND NC 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND ND NC
Beryllium <0.005 <0.665 <0.005 <0.005 <0.005 ND ND ND 0.004 <6 005 <0.005 <0.665 <0.005 <0.005 ND ND ND
Boron 0.26 0.15 0.13 0.15 0.12 0.1 0.11 NC 0.75 <0.1 <0.1 <0.1 <0.1 <0.1 ND ND 0.13
Cadmium <0.005 <0.005 <0.005 <0.005 <0.005 ND ND ND 0.005 <6.005 <0.005 <0.005 <0.005 <0.005 ND ND ND
Calcium 52 61 63 72 67 58 59 57 No Standard 67 66 66 70 76 68 67 54
Chromium <0.01 <6.01 <0.01 <0.01 <6.01 ND ND ND 0.1 CO.01 <0.01 <0.01 <0.01 <6.01 ND ND ND
Cobalt <0.01 <0.01 <0.01 <0.01 <0.01 ND ND NC 0.05 <0.01 <0.01 <0.01 <0.01 <0.01 ND ND NC
Copper <0.01 <0.01 <0.01 <0.01 0.018 ND ND 0.016 0.2 0.012 <0.01 <0.01 <0.01 0.02 ND ND 0.036
Iron <0.1 <0.1 <0.1 <0.1 0.13 ND 0.3 NC 0.1 <0.1 <0.1 <0.1 <0.1 0.52 ND ND NC
Lead <0.003 <0.003 <0.003 <0.003 <0.003 ND ND NC 0.05 <0.003 <0.003 <0.003 <0.003 <0.003 ND ND NC
Lithium 0.051 0.038 0.032 0.033 0.034 0.028 0.627 ND 2.5 0.013 <0.01 <0.01 <0.01 0.011 ND ND 0.636
Magnesium 20 24 23 26 23 24 24 16 Nc Standard 19 19 16 21 21 19 19 22
Manganese 0.1 0.089 0.11 0.17 0.07Z ND 0.637 ND 0.05 0.636 0.013 0.014 0.029 0.023 ND ND 0.12
Mercury <0.0002 <0.0002 <0.0002<0.0002 <0.0002 ND ND NC 0.002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 ND ND NC
Nickel <0.02 <0.02 <0.02 0.037 <0.02 ND ND NC 0.1 <0.02 <0.02 <0.02 0.038 <0.02 ND ND NC
Potassium 6.2 5.6 5.3 5.3 5.1 6.3 6.6 3.6 No Standard 4.9 4 3.7 3.5 3.5 4.3 4.9 6.1
Selenium <0.005 <0.005 <0.005 <0.005 <0.005 ND ND NC 0.02 <0.005 <0.005 <0.005 <0.005 <0.005 ND ND NC
Sodium 80 36 5.3 19 19 18 19 15 No Standard 27 15 14 14 15 16 17 19
Vanadium <0.01 <0.01 <0.01 <0.01 <0.01 ND ND NO 0.1 <0.01 <0.01 <0.01 <0.01 <0.01 ND NO I NO
Zinc 0.025 0.11 0.03 0.12 0.057 ND 0.17 0.17 2 0.091 0.12 <0.02 0.023 <0.02 ND 0.3 0.54
B-rbonate as CaCO, 260 1 230 1 230 220 210 200 190 210 Reflected in pH 220 210 210 200 210 210 210 200
Carbonate as CaCO, <20 <20 <26 <20 <20 ND ND ND Reflected in pH <20 <20 <20 <20 <20 ND ND ND
Total Alkalinity as CaCO, 260 230 230 220 210 200 190 210 Reflected in pH 220 220 210 200 210 210 210 200
pH(lah)' 7.85 7.88 7.73 7.77 7.92 8.31 8.22 7.44 6.5-8.5 7.7 7.85 7.84 8.23 7.91 8.09 8.16 7.49
pH(field) 8.63 7.37 8.62 7.38 8.7 7.95 7.9 7.78 6.5-8.5 8.33 7.72 7.97 7.81 8.54 7.6 7.61 7.29
Temperature°C yield) 13.5 12.7 13.4 14.8 13.7 11.3 14.1 16.8 No Standard 13 11.8 12.9 14.3 12.6 11.8 14.3 16.2
specific conductivity
)lab)" 779 653 621 567 561 504 555 527 No Standard 591 531 521 537 533 495 506 497
electric conductivity
(field) ' 627 578 414 502 453 568 1 541 1 611 No Standard 433 40R 469 468 449 541 571 1 598
Total dissolved solids 480 1 450 1 380 370 350 690 350 350 10,000 360 330 310 350 340 310 330 J7.4
Flouride 2.4 1.9 2 1.8 2.1 1.6 1.5 1.7 4 1.8 1.5 1.6 2 2.1 1.3 1.6
Chloride 25 16 12 5.8 5.9 5.3 5.5 7.1 250 12 8.2 8.6 3.1 4.6 7.2 7.5 Nitrite <0.1 <0.1 <0.1 <0.1 <01ND ND 1.7 1 <0.1 <0.1 <0.1 <0.1 <01 ND ND Nltratefftrite as N <0.1 <01 <0.1 6.21 <0.1 ND 0.18 19 10 <0.1 <0.1 <01 16 15 026 03 Nitrate-N <0.2 <0.2 <0.2 0.21 <02ND 0.18 0.25 10 <02 <02 <0.2 1.6 15 0.26 0.31 0Sulfate 110 92 88 82 81 77 76 83 250 66 56 57 74 71 58 60 Depthto Ground.ate.(It from top of collar) 176 173 172 173 1. 178 178 177 45 55 55 27 29 55 55
pH measured in water at 25"Celsius
"Units in umhoslcm
.Sr"
"'The accented standard is the most restrictive concentrati-II-el in Reoulater-41.
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