PERMFILE109504

• Permit No: C1981014A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: 2.04.7 HYDROLOGY INFORMATION
• Media Type: D
• Archive: Yes

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Table 13
MINE AREA GROUNDWATER QUALITY
Parameter, (mg/1) Unit MAX MIN MEAN SD
Bicarbonate mg/1 830 150 419.7 202.8
Calcium mg/1 139 1.07 25.2 24.7
Carbonate mg/1 33.6 0 4.0 8.2
Chloride mg/1 161 3.2 47.6 51.1
Conductivity umhos/cm 3290 210 1386.8 713.7
Hardness as CAC03 mg/1 184 12 65.2 46.8
Magnesium mg/1 21 0 4.4 4.1
Nitrogen, Ammonia mg/1 19.8 0 3.3 5.9
Nitrogen,
Nitrate-Nitrite mg/1 24.8 0 2.5 5.2
pH unit 8.85 6.2 7.8 0.4
Temperature mg/1 24.5 10 15.0 3.1
Phosphorus, Ortho mg/1 8.1 0 0.6 1.2
SAR in Mater mg/1 47.27 6.12 23.0 11.2
Sodium mg/1 980 28.5 328.4 189.7
Sulfate mg/1 863 9.15 305.1 250.4
Total Dissolved Solids mg/1 2180 156 94].5 5]6.0
Total Suspended Solids mg/1 512 0 57.5 88.4
Arsenic mg/1 0.002 0.000 0.000 0.001
Cadmium mg/1 0.01 0.000 0.001 0.002
Iron mg/1 24.2 0.000 1.025 3.080
Manganese mg/1 0.98 0.000 0.072 0.127
Mercury mg/1 0.0033 0.000 0.000 0.000
Selenium mg/1 0.032 0.000 0.003 0.006
Zinc mg/1 0.272 0.000 0.051 0.050
2.04.7-]7