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~,~,~ <br />Western Atlas <br />Intarnetional <br />CORE LABORATORIES <br />L A B O R A T O R Y T EST S R E S U L T S <br />09/30/92 <br />OB NUMBER: 921345 CUSTOMER: BATTLE MOUNTAIN COLD ATTN: ALANA sCOTi <br />:L IENT I.D.........: 5284 SAN LUIS LABORATORT I.D...: 921345-0007 <br />DATE SAMPLED.......: 07/23/92 DATE RE[E IVED....: 07/28/92 <br />(IME SAMPLED.......: 73:50 TIME RECEIVED....: 11:35 <br />ARK DESCRIP110N...: RS•1 REMARKS..........: <br />TEST DESCRIPTION FINAL RESULT DETECTION LIMIT UNITS OF MEASURE TEST NET H(JD DATE TECHNICI4N <br />Alkalinity, Total (Unfilt.) 61 5 mg/L CaC03 310.1 (1) 08/03/92 VKH <br />B icsrbonate fOnfilt.) 75 5 ng/L 4113 (3) 08/04/92 VKN <br />~CSrbon, Total Orysnie (TOC) 2 2 mg/L 415.2 (1) 08/12/92 KJi <br />ICerbonate (Unfilt.) <1 1 mg/L GD3 (3) 08/04/92 VKN <br />Chloride (Unfilt.) 0.7 0.5 mg/L 325.2 (1) 08/13/92 KDs <br />Conductivity (Unfil [.) 125 1 urdios/cm a25dC 120,1 (1) 08/05/92 MAD <br />Cyanide, Tot el (Unfilt.) <0.02 0.02 m9/L 335.2 (1) 08/05/92 KJ2 <br />Cyanide, free (Unfilt.) <0.02 0.02 mg/L USGS 1-2302.85 08/06/92 MRC <br />Fluoride (Until t.) D.4 0.1 mg/L 340.3 (1) 08/16/92 KDs <br />Hardness, Total (Unfilt.) 50 1 mg/L(as CaC03) 314A (3) 08/74/92 VGL <br />Nitrogen, Ammonia (Unfilt. as N) 0.12 0.01 mg/L (as N) 350.1 (1) 08/14/92 PJM <br />Nitrate • Nitrite (as N) (Unfilt.) <0.05 0.05 mg/L (as N) 353.2 (1) 08/79/92 VKN <br />Oil end Grease (Infrared) <5 5 mq/L 413.2 (1) 08/12/92 MRC <br />pN (Unf itt.) 7.66 0.01 pH Units 750.1 (1) 08/04/92 VKN <br />Solids, lot al Dissolved (TDS) 72 10 tng/L 160.1 (i) 07/30/92 KDs <br />solids, total suspended, 755 <4 4 mg/L 160.2 (1) 07/29/92 VKN <br />sulfate (Unfilt.) <10 10 ng/L 375.2 (1) 08/23/92 PJM <br />Sulfide (Unfilt.) <0.05 0.05 R9/L 376.2 <1) 07/29/92 RNN <br />Aluminum, lot el (Al) 0.08 0.05 mB/L 200.7/6010 (1,2) 08/70/92 7LK <br />Arsenic, Tot el (AS) <0.05 0.05 mg/L 200.7/6010 (1, 2) 08/70/92 TLK <br />Berttm, Total (Ba) 0.02 0.01 ng/L 200.7/6010 (1, 2) 08/10/92 7LK <br />Boron, iota! fB) <0.05 0.05 mg/L 200.7/6010 (1,2) 08/10!92 7LK <br />Cadmium, Total (Cd) <O.DOS 0.005 mg/L 200.7/6010 (1,2) 08/10/92 TLK <br />1300 South Potomac, Suite 130 <br />Aurora, CO 80072 <br />(303) 751-1780 <br />PAGE :9 <br />