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SE,~- ~,~ .ARE DE CRISTO (SDC) LABORATORY, fNC. - 2JZ9 LAVA LANE - P.O. BOX 642 - ALAMOSA, CO 81101 TEL: 719589.1024 FAX: 719.599-7697 INORGANIC ANALYSES RESULTS Battle Mountain Gold Mine CLIENT ID: 990825BMG02 SURFACE LAB ID: 14872-14876 ADDITIONAL ID; SEEP SAMPLE RECEIVED: 8!25199 CLIENT ADDRESS: PO Box 310 San Lui s, CO 81152 COLLECTION DATE: 8125199 SAMPLE MATRIX: WATER REPORT DATE: 919/99 Units: mg/L (milli grams per liter) Ana/vte/Parameter EPA Method MOL Results Analyte/Paramefer EPA Method MOL Results Aluminum, dissolved 200.9 0.003 0.092 Silver, dissolved 200.9 0.0002 0.0002 Aluminum, total 200.9 0.003 0.201 Silver, total 200.9 0.0002 0.0002 Ammonia (N) 350.1 0.40 <0.40 Zinc, dissolved 31118 0.005 0.009 Antimony, dissolved 200.9 0.003 Zinc, total 31116 0.005 0.011 Antimony, total 200.9 0.003 Arsenic, dissolved 200.9 0.007 <0.001 Alkalinity hardness 23208 1 208 Arsenic, total 200.9 0.001 c0 001 Acidity hardness 305.1 pH2 Barium, dissofved 200.8 0.002 0.017 Conductivity, um/cm 25708 'N Barium, total 200.8 0.002 0.020 Oil & Grease 473.2 0.2 2 4 Bicarbonate 23208 1.0 254.2 pH 150.1 0-14 Boron, total 200.9 0.10 <0.10 TDS 160.1 7 870 Boron, dissolved 200.9 0.10 <0.10 TOC 415.2 1 Cadmium, dissolved 200.9 0.0007 0.0001' TSS 2540-D 1 1.2 Cadmium, total 200.9 0.0001 0.0004 Total Hardness 2320A 'N 748.7 Calcium 37118 1.0 258.1 Carbonate 23208 0 ND "N =Detectable as low as sample blanks Chloride 325.2 7.0 7.3 NA =Not analyzed due to insufficient sample size Cobal4 dissolved 200.7 0.070 ND =Sample was analyzed but analyte not detected Cobatt, total 200.7 0.070 Total =Total recoverable metals (EPA digestion 4.1.4, Copper, dissolved 200.9 0.001 <0.001 EPA~i00/4-79.020, AA Methods) Copper, total 200.9 0.001 <0.001 Chromium, dissolved 200.9 0.001 <0.001 Chromium, total 200.9 0.001 <0.001 Cyanide, toUl 4500E 0.070 c0.010 Cyanide, WAD 4500E 0.010 c0.010 Fluoride 45000 0.50 4.09 Iron, dissolved 31116 0.010 0.141 Iron, total 37718 0.070 0.180 'CONFIRMED Lead, dissolved 200.9 0.001 0.002 Lead, total 200.9 0.001 0.005 Magnesium 37118 0.50 25.47 Manganese, dissolved 31116 0.010 2.383 Manganese, total 37118 0.010 2.479 Mercury, dissolved 245.2 0.0001 <0.0001 fn Mercury, total 245.2 0.0007 <0.0001 Approved by: 1 Date:~q Nickel, tlissolved 200.9 0.001 0.002' Nickel, total 200.9 0.001 0.003 Nitrate-Nitrite 4500D 0.10 <0.10 Potassium 200.9 0.50 7.63 Phosphate 365.1 0.10 Selenium, dissolved 200.9 0.001 <0.001 Selenium, total 200.9 0.001 <0.001 Silica, total 200.9 0.0005 12.15 Silica, dissolved 200.9 0.0005 9.35 Sodium 31118 1.00 27.5 Sulfate 375.4 1.0 491.9 Sulfide, Hydrogen 376.1 1.00 <1.00 ~ h 7.3