~~i
<br />CORE LABORATORIES
<br />L A B O R A T O R Y T E S T R E S U L T S
<br />Job Number: 970111 Date: 09/16/98
<br />CUSTOMER: Battle Mountain Gold Company PROJECT: 40TR96 KINETIC TEST ATTN: Ron. Zumwalt
<br />Customer Sample ID: 40TR96 WEEK-67 Laboratory Sample ID: 970111-68
<br />Date Sampled......: 05/11/1998 Date Received.......: 05/11/1998
<br />Time Sampled......: 09:00 Time Received.......: 09:00
<br />Sample Matrix.....: Solid
<br />TEST METH PARAMETER/TEST DESCR]PT ION SAMPLE RESULT REPORTING LIMIT UNITS DATE TECH
<br />EPA 305.1 Acidity as CaC03, Fi lt. c10 10 mg/L CaC03 05/15/98 dme
<br />EPA 310.1 Alkalinity, Total as CaC03, Fi Lt. 14 5 mg/L CaC03 05/15/98 dme
<br /> Initial pH of DI Added to Cell, Filt. 4.89 0.01 pH Units 05/11/98 tlp
<br /> Leachate Collected, Filt. 173 0.1 mL OS{11{98 tlp
<br />EPA 120.1 Specific Conductivity a 25 degrees C, Filt. 30 1 umhos/cm 05/12/98 tlp
<br />EPA 375.2 Sulfate (504), Filt. c10 10 mg/L 05/28/98 tlp
<br />EPA 150.1 pH, Filt. 7.28 0.01 pH Units 05/15/98 dme
<br />SW-846 6010A Iron (Fe ), Diss. 0.03 0.03 mg/L 05/18/98 lmt
<br />Page 19
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