2021-12-22_REVISION - M2012032

• Permit No: M2012032
• IBM Index Class Name: Revision
• Doc Date: 12/22/2021
• Doc Name Note: Request for Tailings Placement for the Revenue Mine
• Doc Name: Request for Tailings Placement for the Revenue Mine
• From: Ouray Silver Mines, Inc
• To: DRMS
• Type & Sequence: TR15
• Email Name: LJW
• Email Name: THM
• Email Name: ACY
• Media Type: D
• Archive: No

AUZ Laboratories, Inc. I • • - • - •
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] O - • •
Ouray Silver Mines ACZ Project ID: L69171
ACZ ID WORKNUM PARAMETER METHOD QUA
L DESCRIPTION
WG531044 Fluoride(1312 DI) SM450OF-C RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<10x MDL)
WG530612 Hydroxide as CaCO3 SM2320B-Titration Q6 Sample was received above recommended temperature
WG530712 Iron(1312) M6010D ICP RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<10x MDL)
WG530915 Lead(1312) M6020B ICP-MS 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.
M6020B ICP-MS ZG The ICP or ICP-MS Serial Dilution was not used for data
validation because the sample concentration was less than
50 times the MDL
WG530787 Lithium(1312) M6010D ICP RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<10x MDL).
Magnesium(1312) M6010D ICP RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<10x MDL).
WG530915 Manganese(1312) M6020B ICP-MS ZH Serial Dilution exceeded the acceptance criteria Matrix
interference[physical or chemical]is suspected
WG530581 Mercury(1312) M7470A CVAA Q6 Sample was received above recommended temperature
M7470A CVAA RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<10x MDL)
WG530915 Molybdenum(1312) M6020B ICP-MS ZG The ICP or ICP-MS Serial Dilution was not used for data
validation because the sample concentration was less than
50 times the MDL
Nickel(1312) M6020B ICP-MS RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1 Ox MDL).
WG530636 Nitrate/Nitrite as N(1312-DI) M353 2-Automated Cadmium HD Analysis is outside the intended scope of the method,which
Reduction does not provide hold time information for sod extracts No
hold time is observed for collection to extraction The
referenced method hold time is observed for extraction-to-
analysis
M353 2-Automated Cadmium Q6 Sample was received above recommended temperature
Reduction
M353 2-Automated Cadmium RA Relative Percent Difference(RPD)was not used for data
Reduction validation because the concentration of the duplicated
sample is too low for accurate evaluation(<10x MDL)
Nitrite as N(1312-DI) M353.2-Automated Cadmium HD Analysis is outside the intended scope of the method,which
Reduction does not provide hold time information for soil extracts No
hold time is observed for collection to extraction The
referenced method hold time is observed for extraction-to-
analysis
M353.2-Automated Cadmium Q6 Sample was received above recommended temperature.
Reduction
M353 2-Automated Cadmium RA Relative Percent Difference(RPD)was not used for data
Reduction validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1 Ox MDL)
WG531648 Nitrogen,ammonia(1312-DI) M350 1 Auto Salicylate w/gas HD Analysis is outside the intended scope of the method,which
diffusion does not provide hold time information for sod extracts No
hold time is observed for collection to extraction The
referenced method hold time is observed for extraction-to-
analysis
M350 1 Auto Salicylate w/gas Q6 Sample was received above recommended temperature.
diffusion
WG530634 Phosphorus,ortho dissolved(1312-DI) M365 1-Automated Ascorbic HD Analysis is outside the intended scope of the method,which
does not provide hold time information for soil extracts. No
hold time is observed for collection to extraction The
referenced method hold time is observed for extraction-to-
analysis
M365 1-Automated Ascorbic RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1 Ox MDL)
REPAD.15.06 05.01
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