2022-05-06_HYDROLOGY - M2012032

• Permit No: M2012032
• IBM Index Class Name: Hydrology
• Doc Date: 5/6/2022
• Doc Name: Water Monitoring - Groundwater
• From: Ouray Silver Mines
• To: DRMS
• Annual Report Year: 2022
• Report Quarter_Month: 1
• Email Name: LJW
• Email Name: THM
• Media Type: D
• Archive: No

ACZ Laboratories, Inc. • • • - •
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] - • •
Ouray Silver Mines ACZ Project ID: L71783
METHOD'ACZ ID WORKNUM PARAMETER QUAL DESCRIPTION
L71783-01 NG538059 Calcium,dissolved M200.7 ICP 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.
WG537794 Cyanide,total M335.4-Colorimetric w/ M1 Matrix spike recovery was high,the recovery of the
distillation associated control sample(LCS or LFB)was acceptable.
WG538429 Fluoride SM450OF-C Mt Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
WG537900 Phosphorus,total M365.1-Auto Ascorbic Acid RA Relative Percent Difference(RPD)was not used for data
(digest) validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1Ox MDL).
WG537803 Residue,Non-Filterable(TSS)@105C SM2540D 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).
SM2540D Z3 Sample volume yielded a residue less than 2.5 mg
W G538250 Sulfate D516-02/-07/-11- M3 The spike recovery value is unusable since the analyte
TURBIDIMETRIC concentration in the sample is disproportionate to the spike
level.The recovery of the associated control sample(LCS
or LFB)was acceptable.
L71783-02 ✓•/G537794 Cyanide,total M335.4-Colorimetric w/ M1 Matrix spike recovery was high,the recovery of the
distillation associated control sample(LCS or LFB)was acceptable.
WG538429 Fluoride SM450OF-C M1 Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
WG537900 Phosphorus,total M365.1-Auto Ascorbic Acid RA Relative Percent Difference(RPD)was not used for data
(digest) validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1 Ox MDL).
WG537803 Residue,Non-Filterable(TSS)@105C SM2540D 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).
SM2540D Z3 Sample volume yielded a residue less than 2.5 mg
W G538250 Sulfate D516-02/-07/-1 l- M3 The spike recovery value is unusable since the analyte
TURBIDIMETRIC concentration in the sample is disproportionate to the spike
level.The recovery of the associated control sample(LCS
or LFB)was acceptable.
REPAD.15.06.05.01
L71783-2203231609 Page 15 of 19