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

A40Z Laboratories, Inc. • • • - •
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] w - • •
ACZ Project ID: L65443
ACZ ID WORKNUM PARAMETER .. QUAL DESCRIPTION
L65443-01 WG518736 2,4-Dimethylphenol M8270D/E GUMS R1 RPD exceeded the method or laboratory acceptance limit.
See Case Narrative.
2-Nitroaniline M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
3,3-Dichlorobenzidine M8270D/E GC/MS N1 See Case Narrative.
4-Chloroaniline M8270D/E GC/MS R1 RPD exceeded the method or laboratory acceptance limit.
See Case Narrative.
4-Nitroaniline M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Aniline M8270D/E GUMS VC CCV recovery was above the acceptance limits.Target
analyte was not detected in the sample[<MDL].
Benzidine M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Benzo(a)anthracene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Benzo(a)pyrene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Benzo(b)fluoranthene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Benzo(g,h,i)perylene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Benzo(k)fluoranthene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Benzoic Acid M8270D/E GUMS R1 RPD exceeded the method or laboratory acceptance limit.
See Case Narrative.
Bis(2-ethylhexyl)phthalate M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Chrysene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Dibenzo(a,h)anthracene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Di-n-octyl phthalate M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Indeno(1,2,3-cd)pyrene M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
Nitrobenzene M8270D/E GUMS M1 Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
N-Nitrosodiphenylamine M8270D/E GUMS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
L65443-02 WG517626 1,1,1,2-Tetrachloroethane 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).
1,1.1-Trichloroethane M8260C/D GUMS M1 Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
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).
1,1,2,2-Tetrachloroethane 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).
1,1,2-Trichloroethane 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).
1,1-Dichloroethane 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).
1,1-Dichloroethene M8260C/D GUMS M1 Matrix spike recovery was high,the recovery of the
associated control sample(LCS or LFB)was acceptable.
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).
1,1-Dichloropropene M8260C/D GC/MS M1 Matrix spike recovery was high,the recovery of the
REPAD.15.06.05.01
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