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Table 2. Water Quality Data from Wells Near Logan Wash Mine <br />and Summary Statistics for the LW -001 Mine Water <br />Sample ID: <br />LWCW -lA <br />LW -22 <br />Sample Date: <br />05/10/11 <br />10/27/11 <br />06/13/12 <br />10/2S/12 <br />06/12/13 <br />11 /10 /OS <br />LW -001 Summary Statistics <br />Parameters <br />Umts <br />Min <br />Max <br />Mean <br />Median <br />Std Dev <br />General Chemistry <br />Alkalinity, bicarbonate <br />ug /L <br />425000 <br />360000 <br />370000 <br />380000 <br />390000 <br />433000 <br />250000 <br />290000 <br />272182 <br />272000 <br />13592 78 <br />Alkalinity, carbonate <br />ug /L <br />5000 U <br />5000 U <br />5000 U <br />5000 U <br />5000 U <br />2000 U <br />5000 U <br />5000 U <br />NA <br />NA <br />NA <br />Alkalinity, total (as CaCO3) <br />ug /L <br />432000 <br />360000 <br />370000 <br />380000 <br />390000 <br />433000 <br />250000 <br />290000 <br />272182 <br />272000 <br />13592 78 <br />Ammonia <br />ug /L <br />100 U <br />120 U <br />140 U <br />320 <br />150 <br />- <br />150 <br />310 <br />237 <br />250 <br />8083 <br />Bromide <br />ug /L <br />500 U <br />1000 U <br />500 U <br />1300 U <br />2500 U <br />300 U <br />1101 <br />1300 U <br />NA <br />NA <br />NA <br />Chemical oxygen demand (COD) <br />ug /L <br />38800 <br />28000 <br />38000 <br />18000 <br />34000 <br />50000 <br />17000 <br />104000 <br />32925 <br />23600 <br />2893682 <br />Chloride <br />ug /L <br />35400 <br />16000 <br />24000 <br />32000 <br />27000 <br />25000 <br />25500 <br />68000 <br />36853 <br />35000 <br />718097 <br />Conductivity <br />imhos/cry <br />5550 <br />4300 <br />4000 <br />4000 <br />4100 <br />- <br />2830 <br />3900 <br />3467 <br />3500 <br />26092 <br />Cyanide, weak acid dissoaable <br />ug /L <br />- <br />- <br />- <br />- <br />- <br />- <br />2 11 <br />10 0 U <br />NA <br />NA <br />NA <br />Dissolved organic carbon (DOC) <br />ug /L <br />14400 <br />12000 <br />10000 <br />11000 <br />10000 <br />11000 <br />4800 <br />9200 <br />7230 <br />7300 <br />1329 20 <br />Fluoride (dissolved) <br />ug /L <br />1200 <br />1100 U <br />1100 <br />1100 <br />410 <br />700 <br />1800 <br />3000 <br />2382 <br />2300 <br />337 10 <br />Hardness <br />ug /L <br />1130000 <br />770000 <br />820000 <br />760000 <br />1000000 <br />1190000 <br />570000 <br />690000 <br />624545 <br />600000 <br />4590504 <br />Nitrate (as N) <br />ug /L <br />23100 <br />14000 <br />14000 <br />140001 <br />16000 <br />12400 <br />2500 <br />5400 <br />3255 <br />2900 <br />87677 <br />Nitrite (as N) <br />ug /L <br />1200 U <br />250 U <br />130 U <br />130 UJ <br />130 U <br />10 UH <br />270 <br />270 <br />270 <br />270 <br />NA <br />Oil and grease <br />ug/L <br />- <br />- <br />- <br />- <br />- <br />2000'U <br />4600 U <br />6200 U <br />NA <br />NA <br />NA <br />Oil and grease (HEM), polar <br />ug /L <br />- <br />4700 U <br />24001 <br />5200 U <br />14001 <br />- <br />13001 <br />5700 U <br />NA <br />NA <br />NA <br />Oil and grease (HEM), total <br />ug /L <br />2000 J <br />- <br />- <br />- <br />- <br />- <br />2400 J <br />4800 U <br />NA <br />NA <br />NA <br />pH (lab) <br />s U. <br />7 -51 <br />7 661 <br />7 -391 <br />7 741 <br />7 79 J <br />- <br />7 661 <br />8 21 <br />NA <br />NA <br />NA <br />Phenolics (total) <br />ug /L <br />25 <br />10 U <br />10 U <br />10 U <br />7 -71 <br />- <br />20 <br />42 <br />31 <br />31 <br />15 56 <br />Phosphorus <br />ug /L <br />100 U <br />100 U <br />100 U <br />58J <br />100 U <br />10 <br />300 <br />300 <br />300 <br />300 <br />NA <br />Sulfate <br />ug /L <br />1950000 <br />1400000 <br />1700000 <br />1600000 <br />1900000 <br />1400000 <br />1140000 <br />1510000 <br />1255455 <br />1200000 <br />115789 78 <br />Sulfide <br />ug /L <br />18001 <br />3000 U <br />3000 U <br />3000 U <br />3000 U <br />- <br />240J <br />3200 <br />NA <br />NA <br />NA <br />Total dissolved solids (TDS) <br />ug /L <br />3620000 <br />2700000 <br />2500000 <br />2500000 <br />2600000 <br />2630000 <br />1700000 <br />8480000 <br />2280513 <br />2100000 <br />1029685.56 <br />Total kleldahl nitrogen (TKN) <br />ug /L <br />5000 U <br />5000 U <br />5000 U <br />11001 <br />34001 <br />- <br />410 <br />6200 <br />3822 <br />4500 <br />214007 <br />Total organic carbon (TOC) <br />ug /L <br />14100 <br />11000 <br />11000 <br />11000 <br />8500 <br />- <br />4800 <br />9200 <br />7164 <br />7100 <br />1265 13 <br />Total suspended solids (TSS) <br />ug /L <br />9200 <br />17000 <br />40000 <br />150000 <br />24000 <br />- <br />4400 <br />4400 <br />4400 <br />4400 <br />NA <br />Metals <br />Arsenic (total) <br />ug /L <br />14 7 <br />13 <br />15 <br />15 <br />12 <br />1B <br />15 <br />21 <br />18 <br />18 <br />160 <br />Arsenic (dissolved) <br />ug /L <br />147 <br />14 <br />13 <br />11 <br />12 <br />- <br />15 <br />19 3 <br />17 <br />17 2 <br />142 <br />Boron (total) <br />ug /L <br />- <br />- <br />- <br />- <br />- <br />1340 <br />3700 <br />5200 <br />4411 <br />4350 <br />38233 <br />Boron (dissolved) <br />ug /L <br />9590 <br />8200 <br />9700 <br />7900 <br />11000 <br />- <br />4030 <br />5510 <br />4638 <br />4620 <br />465 04 <br />Cadmium (dissolved) <br />ug /L <br />0 0981 <br />10 U <br />10 U <br />0 099 J <br />0 141 <br />0 2 U' <br />0 12 J <br />10 U <br />NA <br />NA <br />NA <br />Calcium (dissolved) <br />ug/L <br />126000 <br />98000 <br />110000 <br />78000 <br />130000 <br />202000 <br />73100 <br />100000 <br />86720 <br />87850 <br />8247.67 <br />Chromium (total) <br />ug /L <br />49 <br />3 7 <br />3 2 <br />2 5 <br />2 5 <br />0 7 B <br />0.37 J <br />2 0 U <br />NA <br />NA <br />NA <br />Chromium (dissolved) <br />ug /L <br />46 <br />36 <br />2S <br />1 1 J <br />26 <br />- <br />0 38 J <br />2 0 U <br />NA <br />NA <br />NA <br />Copper (dissolved) <br />ug /L <br />62 <br />6 5 <br />81 <br />6 <br />7 <br />20 U' <br />2 1 <br />5 -9 <br />3 <br />3 5 <br />0 86 <br />Iron (total) <br />ug /L <br />198 <br />420 <br />780 <br />1900 <br />340 <br />1130 <br />50 <br />200 <br />111 <br />95 <br />6696 <br />Notes <br />J Estimated concentration U Not detected above the associated reporting limit - Not analyzed <br />R Rejected UJ Not detected; Reporting limit is estimated ' Analysis is for total, (total recoverable for oil and grease) <br />Page 1 of 2 <br />