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3.1.5 Mercury <br />Mercury concentrations have not been higher than the PDWS nor have they exceeded the baseline levels from the December <br />• 2006 through October 2007 sampling events. There are no identifiable increases or decreases in concentrations or areas of <br />higher concentrations at the site over the sampling period. <br />Mercury <br /> Wells (CRMW) Site/Group <br /> <br /> 01 02 04 05 O6 07 09 16 40 41 42 A VG <br />Oct-05 0.00040 U <0.0002 0.00020 U U ---- --•- 0.00040 0.00040 ---• 0.0002 <br />Nov-05 U ---- U ---- U ••-- ---- ---- ---- U ---- 0.0000 <br />Dec-05 U ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 0.0000 <br />Apr-06 U ---- U ---- U ---- ---- ---- ---- U ---• 0.0000 <br />Jul-06 0.00013 0.00012 0.00011 •--- 0.00021 0.00024 ---- ---- 0.00012 U ---- 0.0001 <br />Oct-06 U ---- U ---- U ---- ---- ---- ---- U -•-- D.0000 <br />Dec-06 ---- •-•- ---- ---- <br />---- <br />---- <br />---- <br />---- <br />---- <br />---- <br />---- <br />---- <br />Apr-07 0.00010 ---- 0.00027 ---- 0.00005 --- ---• ---- ---- U ---- 0-0001 <br />Jul-07 ---- ---- --•• ---- ---- <br />Oct-07 U ---- U ---- U ---- ---- ---- --•- U --•- 0.0000 <br />Average 0.00008 0.0001 0.0001 ---- 0.0000 ---- ---- ---- 0.0003 0.0001 •--- 0.000 i <br />Stnd Dev. 0.00015 0.0001 0.0001 ---- 0.0001 ---- ---- ---- 0.0002 0.0002 ---- 0.0001 <br />2006 <br />Baseline 0.0002 ---- 0.0002 ---• 0.0002 --•- ---• •--• ----- 0.0003 ---- 0.0002 <br />2007 <br />Baseline 0.0002 ---- 0.0002 ••-• 0.0002 ---- ---- ---- ----- 0.0003 ---- 0.0002 <br />u <br />• <br />The average mercury level for the entire site has not changed from the WOBR report. The standard deviation is 0.0001 mg/L. <br />- Lupton Lakes -7- January <br />