2019-09-26_HYDROLOGY - M1977348

• Permit No: M1977348
• IBM Index Class Name: HYDROLOGY
• Doc Date: 9/26/2019
• Doc Name: Water Monitoring - Groundwater
• From: Holcum‎(US)‎, Inc.
• To: DRMS
• Email Name: AME
• Media Type: D
• Archive: No

' AOZ
Laboratories, Inc. }
2773 Downhill Drive Steamboat Springs, CO 80487 [phone] nx #
SA
' Golder Associates ACZ Project ID: L52434
L52434-01 NG475119 Chloride M300.0-Ion Chromatography DC Sample required dilution. Non-target analyte exceeded
' calibration range.
M300.0-Ion Chromatography 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).
' W G474803 Cyanide,Free D6888-09/OIA-1677-09 MA Recovery for either the spike or spike duplicate was outside
of the acceptance limits;the RPD was within the
acceptance limits.
WG474677 Mercury,dissolved M245.1 CVAA M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
' WG474530 Nitrite as N,dissolved M353.2-Automated Cadmium RA Relative Percent Difference(RPD)was not used for data
Reduction validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1 Ox MDL).
WG474775 Residue,Filterable(TDS)@180C SM2540C 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).
WG476400 Total Alkalinity SM2320B-Titration H1 Sample prep or analysis performed past holding time. See
case narrative.
L52434-02 NG475119 Chloride M300.0-Ion Chromatography 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).
W G474803 Cyanide,Free D6888-09/OIA-1677-09 MA Recovery for either the spike or spike duplicate was outside
of the acceptance limits;the RPD was within the
' acceptance limits.
WG474677 Mercury,dissolved M245.1 CVAA M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
WG474530 Nitrite as N,dissolved M353.2-Automated Cadmium RA Relative Percent Difference(RPD)was not used for data
' Reduction validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1 Ox MDL).
WG474775 Residue,Filterable(TDS)@180C SM2540C 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).
' WG475119 Sulfate M300.0-Ion Chromatography DC Sample required dilution. Non-target analyte exceeded
calibration range.
WG476400 Total Alkalinity SM2320B-Titration H1 Sample prep or analysis performed past holding time. See
case narrative.
' L52434-03 NG475119 Chloride M300.0-Ion Chromatography 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).
W G474803 Cyanide,Free D6888-09/OIA-1677-09 MA Recovery for either the spike or spike duplicate was outside
of the acceptance limits;the RPD was within the
acceptance limits.
WG474677 Mercury,dissolved M245.1 CVAA M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
WG474530 Nitrite as N,dissolved M353.2-Automated Cadmium RA Relative Percent Difference(RPD)was not used for data
' Reduction validation because the concentration of the duplicated
sample is too low for accurate evaluation(<1 Ox MDL).
W G474739 Silver,dissolved M200.8 ICP-MS M2 Matrix spike recovery was low,the recovery of the
associated control sample(LCS or LFB)was acceptable.
M200.8 ICP-MS RF Relative Percent Difference(RPD)for Ag in spiked
' samples exceeded limit. In the absence of HCI,
precipitation of Ag may occur at different rates.
M200.8 ICP-MS ZA Poor recovery for Silver quality control is accepted due to
low Silver solubility in samples,digestates,or extracts that
do not contain sufficient Hydrochloric acid.
' WG475119 Sulfate M300.0-Ion Chromatography DC Sample required dilution. Non-target analyte exceeded
calibration range.
WG476400 Total Alkalinity SM2320B-Titration H1 Sample prep or analysis performed past holding time. See
case narrative.
' REPAD.15.06.05.01
' L52434-1908281443 Page 33 of 55