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<br />CORE LAB0R,4T0RIES
<br />Q U A L I T Y C O N T R O L R E P O R T
<br />03/09195
<br />JOB NUMBER: 941802 CUSTOMER: HENDRICKS M[NING CO, INC. ATTN: THOMAS HENDRIC KS
<br />ANALYSIS DUPLICATES REFERENCE STANDARDS MATRIX SPIKES
<br />ANALYSIS ANALYSIS ANALYSIS ANALYZED DUPLICATE RPD or TRUE PERCENT ORIGINAL SPIKE PERCENT
<br />TYPE SUBTYPE I.D. VALUE (A) VALUE (B) (~A-B~) VALUE RECOVERY VALUE ADDED RECOVERY
<br />PARAMETER :ACidi [y (Fitt.) DATE/TIME ANALYZED:02/28/95 08:00 OC BATCH NUMBER:322416
<br />REPORTING LIMIT/D F: 10 UNITS:mg/L CaL03 METHOD REFERENCE :305.1 (1) TECHNICIAN :RPK
<br />DUPLICATE MD 942866-98 <10 <10 NL
<br />PARAMETER: pH (FiIC.) DATE/TIME ANALY2ED:02/28/95 08:00 DC BATON NUM8ER:322417
<br />REPORTING LIMIT IDF: 0.01 UN IT S:pH Units METHOD REFERENCE :150.1 (1) TECHNILIAN:RPK
<br />STANDARD ICV G941219A 3.98 4.00 100
<br />STANDARD CCV 57.00 6.97 7.00 100
<br />STANDARD CCV 57.00 6.98 7.00 100
<br />STANDARD CCV 57.00 6.96 7.00 99
<br />STANDARD CLV 57.00 6.48 7.00 100
<br />DUPLICATE MD 941691-31 7.09 7.59 7
<br />DUPLICATE MD 941875-153 7.39 7.33 1
<br />DUPLICATE MD 942866-98 7.27 7.21 1
<br />DUPLICATE MD 950256-4 6.81 6.85 1
<br />PARAMETER:Alkalinity, To[al (Filt.) DATE/TIME ANALYZED:02/28/95 08:00 OC BATCH NUMBER:322422
<br />REPORTING LIMIT/D F: 5 UNITS:mg/L CaL03 METHOD REFERENCE :310.1 (1) TELHNI OIAN:RPK
<br />BLANK MB 950228 <5
<br />STANDARD LLS G9502088 166 167 99
<br />DUPLICATE MD 941691-31 15 14 1
<br />DUPLICATE MD 941875-153 14 14 0
<br />DUPLICATE MD 942866-98 11 12 1
<br />DUPLICATE MD 950256-4 <5 <5 NL
<br />PARAMETER:Mercury, Diss. (Hg) DATE/TIME ANALYZED :03/03/95 09:00 OC BATCH NUMBER:322572
<br />REPORTING LIMIT/DF: 0.0002UNITS:mg/L METHOD REFERENCE :7470 (2) TELHNI CIAN:BPB
<br />BLANK ICB 03035 <0.0002
<br />BLANK CCB 03035 <0.0002
<br />BLANK LCB 03035 <0.0002
<br />STgNDARO ICV 1121H 0.0040 0.0040 100
<br />STANDARD CCV 1013P 0.0026 0.0025 104
<br />STANDARD LCV 1013P 0.0027 0.0025 108
<br />SPIKE MS 940881-092 0.0050 <0.0002 0.0050 100
<br />DUPLICATE MD 950881-091 <0.0002 <0.0002 NL
<br />PARAMETER:Sulfate (Fill.) DATE/TIME ANALYZED:03/02/95 10:00 OC BATCH NUMBER:322673
<br />REPORTING LIMIT/D F: 10 UNITS:mg/L METHOD REFERENCE :375.2 (1) TECHNICIAN:DME
<br />BLANK ICB 950302 <10
<br />BLANK CCB 950302 <10
<br />BLANK CLB 950302 <10
<br />STANDARD ICV/LOS G940415A 145 150 97
<br />STANDARD CCV 5160 158 160 99
<br />STANDARD CCV 5160 164 160 102
<br />10703 East Bethany Drive
<br />Aurora, CO 80014
<br />(303) 751-1780
<br />PAGE:62
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