2008-12-17_HYDROLOGY - M2004078 - Laserfiche WebLink

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3.1.5 Mercury Mercury concentrations have not been higher than the PDWS. The mercury concentrations in CRMW01 and CRMW04 have exceeded the baseline level in the April 2008 sampling event. There are no identifiable increases or decreases in concentrations or areas of higher concentrations at the site over the sampling period. Mprcurv Wells (CRMW) Site/Group 01 02 04 05 06 07 09 16 40 41 42 A VG Oct-05 0.00040 U U 0.00020 U U ---- ---- 0.00040 0.00040 ---- 0.0002 Nov-05 U ---- U ---- U ---- ---- ---- ---- U ---- 0.0000 Dec-05 U ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 0.0000 Apr-06 U ---- U ---- U ---- ---- ---- --- U ---- 0.0000 Jul-06 0.00013 0.00012 0.00011 ---- 0.00021 0.00024 ---- ---- 0.00012 U ---- 0.0001 Oct-06 U ---- U ---- U ---- ---- ---- ---- U ---- 0.0000 Dec-06 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- Apr-07 0.00010 ---- 0.00027 ---- 0.00005 ---- ---- ---- ---- U ---- 0.0001 Jul-07 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- Oct-07 U ---- U ---- U ---- ---- ---- ---- U ---- 0.0000 Jan-08 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- Apr-08 0.00100 ---- 0.00040 ---- U ---- ---- ---- ---- U ---- 0.0002 Jul-08 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- Oct-08 U ---- U ---- ---- ---- U ---- ---- U ---- 0.0000 Average Stnd 0.0002 0.0001 0.0001 0.0002 0.0000 0.0001 0.0000 ---- 0.0003 0.0000 ---- 0.0001 Dev. 0.0003 0.0001 0.0001 -- 0.0001 0.0002 ---- ---- 0.0002 0.0001 ---- 0.0002 2007 Baseline 0.0002 ---- 0.0002 ---- 0.0002 ---- ---- ---- ---- 0.0003 ---- 0.0002 The average mercury level for the entire site has not changed from 2007 to 2008. The standard deviation is 0.0002 mg/L. Annual 2008 Sampling Report - Lupton Lakes 7- December 2008