2010-02-02_REVISION - M1979181

• Permit No: M1979181
• IBM Index Class Name: REVISION
• Doc Date: 2/2/2010
• Doc Name: Solids analysis 2008-2009
• From: Grayling LLC
• To: DRMS
• Type & Sequence: TR2
• Email Name: WHE
• Media Type: D
• Archive: No

AraZ Laboratories, Inc.
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] ,} =y e
Mount Sneffels Mining Company, LLC ACZ Project ID: L79933
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WG276394 Mercury (1312) M7470A CVAA RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
WG276474 Nickel (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
WG276402 Nickel, total (3050) M6010B ICP M1 Matrix spike recovery was high, the recovery of the
associated control sample (LCS or LFB) was acceptable.
WG276474 Potassium (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
M6010B ICP ZG The ICP Serial Dilution was not used for data validation
because the sample concentration was less than 50 times
the MDL.
WG276458 Selenium (1312) M6020 ICP-MS ZB The ICP-MS Serial Dilution was not used for data validation
because the sample concentration was less than 100 times
the MDL.
WG276474 Silver (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
WG276458 Thallium (1312) M6020 ICP-MS RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
WG276474 Vanadium (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
Zinc (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
WG276402 Zinc, total (3050) M6010B ICP ZH Serial Dilution exceeded the acceptance criteria. Matrix
interference [physical or chemical] is suspected.
WG276503 Sulfur Sulfate M600/2-78-054 3.2.4 RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 1 Ox MDL).
WG276860 Chloride (1312 DI) SM45000I-E HD Analysis is outside the intended scope of the method,
which does not provide hold time information for soil
extracts. The method hold time for extraction-to-analysis
was met.
SM45000I-E RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 1 Ox MDL).
WG276813 Conductivity @25C (1312-DI) SM2510B RD For a solid matrix, the duplicate RPD (spike or matrix)
exceeded the control limit, which is attributable to the non-
homogeneity of the sample.
WG276861 Sulfate (1312 DI) 375.4 - Turbidimetric HD Analysis is outside the intended scope of the method,
which does not provide hold time information for soil
extracts. The method hold time for extraction-to-analysis
was met.
375.4 - Turbidimetric M3 The spike recovery value is unusable since the analyte
concentration in the sample is disproportionate to the spike
level. The recovery of the associated control sample (LCS
or LFB) was acceptable.
375.4 - Turbidimetric RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL).
WG276813 Total Alkalinity SM2320B - Titration RD For a solid matrix, the duplicate RPD (spike or matrix)
exceeded the control limit, which is attributable to the non-
homogeneity of the sample.
REPAD.15.06.05.01
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