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<br />CORE LABORATORIES
<br />Q U A L I T Y C O N T R O L R E S U L T S
<br />Job Number: 962987 Date: 05/29/97
<br />CUSTOMER: Battle Mountain Gold Conpany PROJECT: 30TR96 HLT ATTN: Richard Neu
<br />lest Method........: SW-846 7470 Batch ...........: 17779 AnalysC...: Imt
<br />Method Description.: Mercury (CVM) Reporting Limit...: O.OOD2
<br />Parameter..........: Mercury (Hg) Units .............: mg/L
<br />OC Lab ID Reagent OC Result OC Result True Value Orig. Value Calc. Result Units Date/Time
<br />CCV 960930N 0.00461 0.005000 92.2 X REC 01/21/97 1126
<br />CCB 01217 0.00001 01/21/97 1128
<br />CLV 960930N 0.00464 0.005000 92.8 X REC 01/21/97 1154
<br />CCB 01217 -0.00000 01/21/97 1157
<br />EB 0114 -0.00004 01/21/97 1211
<br />ED 970073-2 -0.00003 -0.00003 0.00000 ABS Diff. 01/21/97 1218
<br />MS 970073-2 960930N 0.00525 0.005000 -0.00003 105.6 X REC 01121(97 1221
<br />CCV 960930N 0.00473 0.005000 94.6 X REC 01/21/97 1223
<br />CCB 01217 0.00000 01/21/97 1225
<br />ND 970073-2 -0.00004 -0.00003 0.00001 ABS Diff. 01/21/97 1228
<br />EB 0118 -0.00003 01/21/97 1237
<br />MS 970029-2 960930N 0.00521 0.005000 -0.00003 104.8 X REC 01/21/97 1244
<br />ND 970029-3 0.00010 0.00008 0.00002 ABS Diff. 01/21/97 1249
<br />CCV 960930N 0.00464 0.005000 92.8 X REC 01/Z1/97 1251
<br />CCB 01217 0.00001 01/21/97 1254
<br />MB 0120 -0.00003 01/21/97 1301
<br />SB 960930N 0.00556 0.005000 111.2 X REC 01/21/97 1303
<br />CCV 960930N 0.00465 0.005000 93.0 X REC 01/21/97 1306
<br />CCB 01217 -0.00000 01/21/97 1308
<br />Test Ne[hod........: EPA 150.1 Batch .............: 17803 Analyst...: .Lmj
<br />Method Description.: pH Reporting Limit...: 0.07
<br />Parameter..........: pH Units .............: pH Units
<br />DC Lab ID Reagent OC Result OC Result True Value Orig. Value Calc. Result lYnits Date/T iioe
<br />ICV G970109A 4.01 4.00 100.2 X REC 01/21/97 0900
<br />ND 962544-161 6.80 6.78 0.3 RPD 01/21/97 0900
<br />CCV 960761 7.02 7.00 100.3 X REC 01/21/97 0900
<br />ND 962544-171 8.48 8.48 0.0 RPD 01/21/97 0900
<br />CCV 960761 7.02 7.00 100.3 X REC 01/21/97 0900
<br />LCS G970109A 4.03 4.00 100.8 X REC 01/21/97 0900
<br />CCV 960761 7.03 7.00 100.4 X REC 01/21/97 0900
<br />MD 962908-148 7.15 7.03 1.7 RPD 01/21/97 0900
<br />CCV 960761 7.03 7.00 100.4 X REC 01/21/97 0900
<br />Test Method........: EPA 310.1 Beteh .......... ...: 17805 Mal yst...: lmj
<br />Method Description.: Alkalinity Reporting Limit ...: 5
<br />Parameter..........: Alkalinity, Total as CaC03 Units .......... ...: mg/L CaC03
<br />OL Lab ID Reagent DC Result OC Result True Value Orig. Value Calc. Resin[ Llni is Da[e/Tine
<br />LCS G961120 95.6 100 95.6 X REC 01/21/97 0900
<br />MB 0 01/21/97 0900
<br />MD 962908-148 15 14 1 ABS Diff. 01/21/97 0900
<br />MD 962544-163 27 26 3.8 RPD 01/21/97 0900
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