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Table 4 Groundwater Quality Data for the Monitoring Well at the JD -9 Mine Site <br />Sample Date 10/18/10 11/8/10 12/8/10 6/22/11 8/24/11 9120/11 10/26/11 Average <br />Maior Ions: units RL <br />Alkalinity(CaCO3) mg/L 355 357 359 345 321 321 311 347 <br />Chloride mg/L 1 195 187 201 185 188 172 169 205 <br />Fluoride I mg/L 1 0.1 1 0.9 1 0.9 1 0.8 1 0.8 0.8 0.8 0.8 0.9 <br />N as Nitrite mg/L 0.1 0 0 0 0 0 0 0 0 <br />Sulfate mg/L 1 1 1 1560 1 1520 1 1570 1490 1480 1380 1390 1 1484 <br />Boron mg/L 0.1 0.3 0.3 0.4 0.4 0.3 0.2 03 0.3 <br />Calcium mg/L 182 186 196 197 198 191 190 19l <br />Magnesium m9/L 165 166 175 171 168 161 165 167 <br />N as Nitrate+Nitrite mg/L 0.1 1 43 4.6 46 51 50 43 45 40 <br />Potassium mg/L 43 44 46 45 47 46 44 49 <br />Silica I mg/L 1 1 10.6 1 10.7 1 113 1 11.4 11.9 103 10.5 11.1 <br />Sodium mg/L 503 487 523 510 502 479 475 497 <br />Aluminum ug/L 1 0 0 0 0 0 0 0 0 <br />Antimony ug/L 1 0 0 0 0 0 0 0 0 <br />Arsenic ugIL l 1 0 0 3 1 0 0 1 <br />Barium ug/L 1 0 0 0 0 0 0 0 0 <br />Beryllium ug/L 1 0 0 0 0 0 0 0 0 <br />Cadmium ug/L 1 0 0 0 0 0 0 0 0 <br />Chromium, +3 ug/L 1 0 0 0 0 0 0 0 0 <br />Cobalt ug/L 0 0 0 0 0 0 0 0 <br />Copper ug/L 1 0 0 0 0 0 0 0 0 <br />