2019-10-10_HYDROLOGY - M1980244 ‎(19)‎

• Permit No: M1980244
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/10/2019
• Doc Name Note: Waste Rock Geochemical Characterization Study Report
• Doc Name: Vol. I, Part 6 of 6
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

A CZ Laboratories, Inc. • • • - • - •
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] 0 - • •
ICItasca Denver, Inc. ACZ Project ID: L43419
METHODACZ ID WORKNUM PARAMETER QUAL DESCRIPTION
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 ZH Serial Dilution exceeded the acceptance criteria. Matrix
interference[physical or chemical]is suspected.
WG444963 Silicon,recoverable(3050) M6010B ICP M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
M6010B ICP ZH Serial Dilution exceeded the acceptance criteria. Matrix
interference[physical or chemical]is suspected.
M6010B ICP ZQ Analyte was not evaluated in the laboratory control
standard. Either the analyte is not included in the scope of
the analytical method or a commercial standard containing
the analyte is not available.
M6010B ICP ZS Digestion procedures have the potential to trigger silica
polymerization and precipitation,leading to low biased
results. Silica chemistry is complex and polymerization
kinetics are unpredictable. Dissolved and/or acid soluble
silica analyses may provide more accurate measurements.
WG445550 Silver(MWMT) M6020 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).
WG445354 Sodium(MWMT) M6010B ICP 131 Target analyte detected in prep/method blank at or above
the method reporting limit.See Case Narrative.
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.
WG445449 Sulfate(MWMT) D516-07-Turbidimetric 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.
D516-07-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.
WG445550 Thallium(MWMT) M6020 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).
WG445499 Total Alkalinity SM2320B-Titration 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).
WG445550 Uranium(MWMT) M6020 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).
WG445354 Vanadium(MWMT) M6010B 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(<1 Ox MDL).
WG444963 Zinc,total(3050) M6010B ICP ZH Serial Dilution exceeded the acceptance criteria. Matrix
interference[physical or chemical]is suspected.
REPAD.15.06.05.01
L43419-1805031418 Page 26 of 47