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<br />CORE LABmRATORIES
<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 Company PROJECT: 30TR96 HCT ATTN: Richprd Neu
<br />Test Nethod........: EPA 375.2 Batch ............. : 15545 Analyst...: lmj
<br />Nethod Description.: Sulfate (Automated NTB, AAII) Reporting Limit... : 10
<br />Parameter..........: Sulfate (504) Units ............. : mg/L
<br />OC Lab ID Reagent OC Result OC Result True Value Orig. Value Lalc. Result Nni is Date/Time
<br />MS 962030-49 G9610038 59.88480 50.000000 9.30700 101.2 X REC 11/13/96 1050
<br />ND 962030-52 2.21322 3.12861 0.91539 ABS Diff. 11/13/96 1057
<br />NS 962030-52 G961003B 49.45427 50.000000 3.12861 92.7 X REC 11/13/96 1059
<br />CCV G960415E 76.67374 80 95.8 X REC 11/13/96 1102
<br />CCB 2.21322 11/13/96 1104
<br />LCS C960209A 47.38063 50.0 94.8 X REC 11/13/96 1107
<br />CCV G960415F 112.83609 120 94.0 X REC 11/13/96 1144
<br />CCB 3.12861 11/13/96 1146
<br />CCV G960415E 76.67374 80 95.8 X REC 11/13/96 1204
<br />CCB 2.58132 11/13/96 1206
<br />ND 962908-1 18.43960 17.86513 0.57447 ABS Diff. 11/13/96 1215
<br />MS 962908-1 G9610038 63.24688 50.000000 17.86513 90.8 X REC 11/13/96 1216
<br />CCV G960415E 81.48147 80 101.9 X REC 11/13/96 1225
<br />CCB 2.21322 11/13/96 1226
<br />LCS G960209A 53.84425 50.0 107.7 X REC 11/13/96 1230
<br />ND 962908-b 12.64128 11.23303 1.40825 ABS Diff. 11/13/96 1235
<br />NS 962908-b G9610038 56.67883 50.000000 11.23303 90.9 X REC 11/13/96 1236
<br />CCV G960415E 78.79578 80 98.5 X REC 11/13/96 1245
<br />CCB 5.78445 11/13/96 1246
<br />CCV G960415E 79.56476 80 99.5 X REC 11/13/96 1305
<br />CCB 2.21322 11/13/96 1307
<br />LCS G960209A 45.39066 50.0 90.8 X REC 11/13/96 1310
<br />CCV G960415E 77.15701 80 96.4 X REC 11/13/96 1327
<br />LCB 2.21322 11/13/96 1328
<br />CLV G960415E 86.62106 80 108.3 X REC 11/13/96 1349
<br />CCB 2.21322 11/13/96 1350
<br />Test Method........: EPA 150.1 Batch .............: 15641 Analyst...: den
<br />Nethod Description.: pH Reporting Limit...: 0.01
<br />Parameter..........: pH Units .............: pH Units
<br />OC Lab ID Reagan[ OC Result 0L Result True Value Orig. Value Lalc. Resin[ Nni [s Date/Time
<br />ICV G960925A 4.02 4.00 100.5 X REC 11/15/96 0920
<br />RD 962030-63 6.77 6.81 0.6 RPD 11/15/96 0920
<br />CCV 960729 6.99 7.00 99.9 X REC 11/15/96 0920
<br />MD 962987-2 7.03 6.56 6.9 RPD 11/15/96 0920
<br />CCV 960729 7.00 7.00 100.0 X REC 11/15/96 0920
<br />Test Method........: EPA 120.1 Batch .............: 15642 Analyst...: dme
<br />Nethod Description.: Specific Conductance a 25 degrees C Reporting Limit...: 1
<br />Parameter..........: Specific Conductivity D 25 degrees L Units .............: umhos/cm
<br />OC Lab ID Reagent OC ResuL[ OC Result True Value Orig. Value Lalc. Result Nnits Date/Time
<br />ICL 960691 987 1000 98.7 X REC 11/14/96 1300
<br />ICB 0 11/14/96 1300
<br />MD 960850-136 144 146 1.4 RPD 11/14/96 1300
<br />LCV G961009B 1350 1410 95.7 X REC 11/14/96 1300
<br />CCB 0 11/14/96 1300
<br />ND 962771-35 229 233 1.7 RPD 11/14/96 1300
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