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

ACZ Laboratories, Inc. • • - - • - •
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] 411 - • •
ACZ Project ID: L65443
METHOD�ACZ ID WORKNUM PARAMETER QUAL DESCRIPTION
Dibromochloromethane 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(<1 Ox MDL).
Dibromomethane 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).
Dichlorodifluoromethane 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(<10x MDL).
Ethylbenzene 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).
Hexachlorobutadiene 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).
Isopropylbenzene 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).
m p Xylene 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(<1 Ox MDL).
Methyl Tert Butyl Ether 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).
Methylene Chloride 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 GUMS VB CCV recovery was outside of acceptance limits.See Case
Narrative.
Naphthalene 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).
n-Butylbenzene 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(<1Ox MDL).
n-Propylbenzene 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).
o Xylene 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).
sec-Butylbenzene 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).
Styrene 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).
tert-Butylbenzene 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(<10x MDL).
Tetrachloroethene 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).
Toluene 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).
trans-1,2-Dichloroethene 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(<10x MDL).
trans-1,3-Dichloropropene 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).
RE PAD.15.06.05.01
L65443-2105101543 Page 32 of 37