2021-05-12_REVISION - M2012032 ‎(2)‎

• Permit No: M2012032
• IBM Index Class Name: REVISION
• Doc Date: 5/12/2021
• Doc Name: Adequacy Review Response
• From: Ouray Silver Mines, Inc.
• To: DRMS
• Type & Sequence: TR12
• Email Name: LJW
• Email Name: THM
• Media Type: D
• Archive: No

A CIZ
Laboratories, Inc. • • • •
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] • •
ACZ Project ID: L65443
METHODACZ ID WORKNUM PARAMETER QUAL DESCRIPTION
sample is too low for accurate evaluation(<10x MDL).
1,2,4-Trimethylbenzene M8260C/D GUMS RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1Ox MDL).
1,2-Dibromo-3-chloropropane M826OC/D GUMS 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).
1,2-Dibromoethane M8260C/D GC/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).
1,2-Dichlorobenzene M8260C/D GC/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).
1,2-Dichloroethane M8260C/D GC/MS M1 Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
M826OC/D GC/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(<1Ox MDL).
M8260C/D GC/MS VC CCV recovery was above the acceptance limits.Target
analyte was not detected in the sample[<MDL].
1,2-Dichloropropane M8260C/D GC/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).
1,3,5-Trimethylbenzene M8260C/D GC/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).
1,3-Dichlorobenzene M8260C/D GC/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).
1,3-Dichloropropane M8260C/D GC/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).
1,4-Dichlorobenzene M8260C/D GUMS 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).
2,2-Dichloropropane M8260C/D GC/MS M1 Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
M8260C/D GC/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).
2-Butanone M8260C/D GC/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).
M8260C/D GC/MS VB CCV recovery was outside of acceptance limits.See Case
Narrative.
2-Chlorotoluene M8260C/D GUMS 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).
2-Hexanone M8260C/D GC/MS M1 Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
M8260C/D GCIMS RA Relative Percent Difference(RPD)was not used for data
validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1Ox MDL).
M8260C/D GUMS VC CCV recovery was above the acceptance limits.Target
analyte was not detected in the sample[<MDL].
4-Chlorotoluene M8260C/D GC/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(<10x MDL).
4-Isopropyltoluene M8260C/D GC/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(<10x MDL).
4-Methyl-2-Pentanone M8260C/D GC/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(<10x MDL).
M8260C/D GC/MS VB CCV recovery was outside of acceptance limits.See Case
Narrative.
REPAD.15.06.05.01
L65443-2105101543 Page 30 of 37