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<br />CORE LABOR~4TORIES
<br />D U A L I T Y C O N T R O L R E P O R T
<br />03/09/95
<br />,108 NUMBER: 941602 CUSTOMER: HENDRICKS MINING CO, INC. ATTN: THOMAS HENDRI(:KS
<br />ANALYSIS DUPLi CATES REFERENCE STANDARDS MATRIK SPIKES
<br />ANALYSIS ANALYSIS ANALYSIS ANALYZED DUPLICATE RPD or TRUE PERCENT ORIGINAL SPIKE PERCENT
<br />TYPE SUB-TYPE I.D. VALUE (A) VALUE (B) (A-BI) VALUE RECOVERY VALUE ADDED RECOVERY
<br />PA0.AMETER:Arsenic, Diss. (AS) DATE/TIME ANALYZED:03/06/95 16:43 OC BATCH NUMBER:322761
<br />REPORTING LIMIT/D F: 0.05 UNITS:mg/L METHOD REFERENCE :6010 (2) tECHNIC[AN :GAG
<br />
<br />SPIKE PDS 950400-001 1.01 <0.05 1.00 101
<br />SPIKE PDS 950459-003 1.05 c0.05 1.00 105
<br />SPIKE PDS 941802-021 1.06 <0.05 1.00 106
<br />DUPLICATE MD 950459-002 <0.05 <0.05 NC
<br />DUPLICATE MD 950400-001 <0.05 <0.05 NL
<br />DUPLICATE MD 941802-011 <0.05 c0.05 NC
<br />PARAMETER:Cadmi um, Diss. (Cd) DATE/TIME ANALYZED:03/06/95 16:43 OC BATCH NUMBER :322784
<br />REPORTINC LIMIT/0 F: 0.005 UNITS:mg/L METHOD REFERENCE :6010 (2) TECNNI CIAN:GAG
<br />BLANK ICB 01120 <0.005
<br />BLANK CCB 01120 <0.005
<br />BLANK CCB 01120 <0.005
<br />BLANK CCB 01120 <0.005
<br />BLANK CC8 01120 <0.005
<br />BLANK CCB 01120 <0.005
<br />STANDARD CCV 0112E 0.926 1.00 93
<br />STANDARD ICV 0302N 1.95 2.00 98
<br />STANDARD CCV 0112E 0.934 1.00 93
<br />STANDARD ISB 0131A 0.832 1.00 83
<br />STANDARD CCV 0112E 0.972 1.00 97
<br />STANDARD CLV 0112E 0.991 1.00 99
<br />SIANDARO ISB 0131A 0.873 1.00 87
<br />STANDARD CCV 0112E 0.990 1.00 99
<br />SPIKE PDS 950400-001 0.851 <0.005 1.00 85
<br />SPIKE PDS 950459-003 0.883 <0.005 1.00 88
<br />SPIKE PDS 941802-021 0.908 <0.005 1.00 91
<br />DUPLICATE MD 950459-002 <0.005 <0.005 NL
<br />DUPLICATE MD 950400-001 <0.005 <0.005 NC
<br />DUPLICATE MD 941802-011 <0.005 <0.005 NC
<br />PARAMETER:Copper, Diss. (CU) DATE/TIME ANALYZED:03/06195 16:43 OC BATCH NUMBER :322786
<br />REPORTING L[MIT/DF: 0.01 UNITS:mg/L METHOD REFERENCE :6010 (2) TECHNICIAN:GAG
<br />BLANK LLB 01120 <0.01
<br />BLANK LLB 0112L <0.01
<br />BLANK CCB 01120 <0.01
<br />BLANK LCB 01120 <0.01
<br />BLANK CCB 01120 <0.01
<br />BLANK CLB 01120 <0.01
<br />STANDARD CLV 0112E 2.55 2.50 102
<br />STANDARD ICV 0302N 2.08 2.00 104
<br />STANDARD CCV 0112E 2.62 2.50 105
<br />STANDARD ISB 0131A 0.50 0.50 100
<br />STANDARD CCV 0112E 2.68 2.50 107
<br />STANDARD CCV 0112E 2.64 2.50 106
<br />10703 East Bethany Drive
<br />Aurora, LO 80014
<br />(303) 751-1780
<br />PAGE:64
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