2013-03-27_GENERAL DOCUMENTS - M1977215

• Permit No: M1977215
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 3/27/2013
• Doc Name: Appeal of Notice of Pending Designation as a DMO.
• From: Rio Grande Silver, Inc.
• To: DRMS
• Permit Index Doc Type: General Correspondence
• Email Name: AJW
• Email Name: GRM
• Email Name: RCO
• Media Type: D
• Archive: No

A Z Laboratories, Inc.
2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334 -5493
Rio Grande Silver, Inc.
ACE ID WORKNUM PARAME TER
METHOD Q1»TAL `; DESCRIPTION
L11050 - WG340757 Arsenic (1312)
WG340729 Barium (1312)
WG340476 Beryllium (1312)
WG340729 Boron (1312)
WG340476 Cadmium (1312)
REPAD.15.06 05 01
M6020 ICP -MS
M6020 ICP -MS
Inorganic Extended
Qualifier Report
ACZ Project ID: L11050
RA Relative Percent Difference (RPD) was not used for data
validation because the sample concentration is too low for
accurate evaluation (< 10x MDL)
ZB The ICP -MS Serial Dilution was not used for data validation
because the sample concentration was less than 100 times
the MDL
M6010B ICP 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
M6010B ICP ZG The ICP Serial Dilution was not used for data validation
because the sample concentration was less than 50 times
the MDL
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)
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).
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)
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.
WG340577 Calcium (1312) M6010B ICP BA Target analyte detected in prep / method blank at or above
acceptance limit Sample value is > 20X the concentration
in the method blank
WG340442 Cobalt (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)
WG340757 Copper (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)
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
WG340442 Iron (1312) M6010B ICP BF Target analyte in prep / method blank at or above the
acceptance criteria. Target analyte was not detected in the
sample [< MDL]
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
WG340757 Lead (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)
WG340442 Magnesium (1312) M6010B ICP BF Target analyte in prep / method blank at or above the
acceptance cnteria Target analyte was not detected in the
sample [< MDL].
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.
Manganese (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)
WG340362 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)
WG340442 Molybdenum (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)
Nickel (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data
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