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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 -IA <br />LW -22 <br />Sample Date: <br />05/10/11 <br />10/27/11 <br />06/13/12 <br />10/25/12 06/12/13 <br />11/10/05 <br />LW -001 Summary Statistics <br />Parameters <br />Umts <br />Min <br />Max <br />Mean <br />Median <br />Std Dev <br />Metals <br />Iron (dissolved) <br />ug /L <br />50 0 U <br />8 1 J <br />24 J <br />22 J <br />5 3 J <br />- <br />50 -8 <br />59 <br />54 <br />53 2 <br />4 22 <br />Lead (dissolved) <br />ug /L <br />IOU <br />1 0 U <br />10 U <br />0 14 1 <br />0 57 J <br />0 2 8' <br />0 38 1 <br />IOU <br />NA <br />NA <br />NA <br />Lead (potentially dissolved) <br />ug /L <br />- <br />- <br />- <br />- <br />- <br />- <br />0 141 <br />10 U <br />NA <br />NA <br />NA <br />Lithium (dissolved) <br />ug /L <br />264 <br />200 <br />240 <br />250 <br />240 <br />- <br />336 <br />400 <br />379 <br />379 5 <br />2066 <br />Magnesium (dissolved) <br />ug /L <br />167000 <br />130000 <br />140000 <br />97000 <br />150000 <br />166000 <br />77100 <br />116000 <br />97040 <br />96050 <br />12506 11 <br />Manganese (dissolved) <br />ug /L <br />0 221 <br />1 51 <br />10.1 <br />13 <br />5 0 U <br />20 B' <br />088 <br />21 <br />1 <br />1 3 <br />056 <br />Mercury (total) <br />ug /L <br />- <br />- <br />- <br />- <br />- <br />0 2 Ul <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0.20 U <br />Mercury (dissolved) <br />ug /L <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />0 20 U <br />Molybdenum (potentially dissolved) <br />ug /L <br />NA <br />NA <br />NA <br />NA <br />NA <br />- <br />230 <br />350 <br />285 <br />280 <br />2996 <br />Potassium (dissolved) <br />ug /L <br />18400 <br />18000 <br />17000 <br />13000 <br />19000 <br />5300 <br />69600 <br />115000 <br />86010 <br />84850 <br />1187382 <br />Selenium (dissolved) <br />ug /L <br />461 <br />37 <br />37 <br />17 <br />40 <br />23 <br />5 1 <br />116 <br />7 <br />7 <br />2.12 <br />Selenium (potentially dissolved) <br />ug /L <br />- <br />- <br />- <br />- <br />- <br />- <br />5 <br />11 <br />7 <br />62 <br />1 75 <br />Silicon (dissolved) <br />ug /L <br />6730 <br />6800 <br />7400 <br />6000 <br />6500 <br />17100' <br />6430 <br />9440 <br />7730 <br />7645 <br />94456 <br />Sodium (dissolved) <br />ug /L <br />596000 <br />480000 <br />660000 <br />630000 <br />540000 <br />305000 <br />390000 <br />490000 <br />424400 <br />415000 <br />31213 25 <br />Strontium (dissolved) <br />ug /L <br />4100 <br />3100 <br />4000 <br />2800 <br />4400 <br />- <br />5320 <br />8100 <br />6104 <br />5815 <br />86225 <br />Uranium (potentially dissolved) <br />ug /L <br />- <br />- <br />- <br />- <br />- <br />- <br />27 <br />48 <br />4 <br />385 <br />050 <br />Zinc (dissolved) <br />ug /L <br />3 5 J <br />9 9 U <br />10 <br />99 <br />15 <br />20 U' <br />7 5 <br />67 5 <br />23 <br />18 <br />20 72 <br />Volatile Organic Compounds NA BTEX <br />Benzene <br />ug /L <br />IOU <br />IOU <br />1 0 U <br />10U <br />1.0U <br />- <br />10U <br />IOU <br />IOU <br />IOU <br />10U <br />Ethylbenzene <br />ug/L <br />IOU <br />l 0 U <br />IOU <br />I O U <br />10 U <br />- <br />10 U <br />IOU <br />l 0 U <br />1 0 U <br />1 0 U <br />Toluene <br />ug /L <br />IOU <br />10U <br />10U <br />10U <br />10U <br />- <br />10U <br />IOU <br />10U <br />1 0 U <br />1 0 U <br />Xylenes(total) <br />ug /L <br />3 0 U <br />3 0 U <br />301J <br />3 0 U <br />3 0 U <br />- <br />3 0 U <br />3 0 U <br />3 0 U <br />3 0 U <br />3 0 U <br />Petroleum Products <br />Total Petroleum Hydrocarbons NA Extractable ( <br />ug /L <br />670 <br />480 U <br />500 U <br />510 U <br />480 U <br />500 U <br />210 <br />42000 <br />14147 <br />230 <br />24121 70 <br />Field Parameters <br />Conductivity, field <br />mhos /c <br />- <br />2318 <br />3541 <br />3100 <br />3965 <br />- <br />1959 <br />3111 <br />2734 <br />2817 <br />29404 <br />Dissolved oxygen (DO), field <br />ug /L <br />- <br />6380 <br />3450 <br />3910 <br />6670 <br />- <br />3650 <br />9400 <br />7273 <br />7290 <br />118840 <br />eH, field <br />millivolts <br />- <br />- <br />- <br />- <br />151 2 <br />- <br />1006 <br />1947 <br />137 <br />116 7 <br />5033 <br />Oxidation reduction potential (ORP), field <br />millivolts <br />- <br />839 <br />94.5 <br />87.6 <br />151 2 <br />- <br />-4 7 <br />538 <br />148 <br />1402 <br />9935 <br />pH, field <br />s u- <br />- <br />7 5 <br />743 <br />7 89 <br />741 <br />- <br />706 <br />852 <br />8 <br />808 <br />029 <br />Temperature, ambient <br />Deg C <br />- <br />- <br />- <br />1 <br />25 <br />- <br />-4 <br />34 <br />19 <br />22 <br />1092 <br />Temperature, ambient <br />Deg F <br />- <br />- <br />- <br />- <br />- <br />- <br />70 <br />75 <br />73 <br />75 <br />289 <br />Temperature, field <br />Deg C <br />- <br />8 6 <br />10 <br />9 2 <br />12 2 <br />- <br />7 8 <br />1262 <br />10 <br />10 5 <br />1 73 <br />Turbidity, field <br />NTU <br />- <br />4568 <br />1016 <br />NA <br />9018 <br />- <br />008 <br />2 59 <br />1 <br />0 32 <br />066 <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 2 of 2 <br />