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Lupton Lakes Sand and Gravel Mine - Ft. Lupton, Colorado <br />Water Quality Monitoring <br />Groundwater quality monitoring as required by the Division of Minerals and Geology Permit #M-2004-078 <br />• <br /> limits by CRMW-42 <br /> Parameters Units CDPHE'' Oct-OS Nov-05 Dec-05 Apr-06 Jul-06 Oct-06 <br />`, Arsenic -Total'' myiL o of ---- ---- <br />~ <br />Z' ~ Fecal Coliform ~nnr~ <br />, ABSENT <br /> ~ <br />i <br />~ <br />E c f <br />Fluoride <br />rr,~; i <br />4 ----- 1.6 <br />----- <br />----- ----- 1.7 <br />a Y <br />~ <br />Mercur <br />Y <br />rr,c <br />r'~ 0.002 <br />----- --- <br />----- <br />----- <br /> <br />----- ---- <br />` <br />~ Nitrate-N rru;rL ~o ----- G.G ---- ---- ---- 7.87 <br />m` Chloride rngrl_ 250 ----- 129 _____ _____ _____ 127 <br /> <br />~ Iron -Total`' mg;l. 0.3 ----- 0.7 _____ _____ _____ 8.9 <br />c <br /> <br />p c .- <br />_ <br />'~ <br /> <br />pH <br /> <br />units <br /> <br />6.5 - 8.5 <br />----- <br />7.38 <br />----- <br />----- <br />----- <br />7.19 <br />°' <br />` <br />~ •- <br />Sulfate <br />n,giL <br />250 <br />----- <br />227 <br />___-- <br />___-- _____ 230 <br />~ Total Dissolved Solids n,g!L 500 ----- 931 ---- ---- ---- ~~35 <br /> Bicarbonate mg: t -- ----- 394 ---- ---- ---- 40G <br />~ Calcium -Total' mg,'L. ----- 110 _____ _____ ____- 120 <br />m <br />°' <br />E Carbonate mgr'L <br />T ----- U _____ _____ _____ U <br />~ Magnesium - Total3 mglL <br />J ----- 26 -_-__ _____ ___-_ 31 <br />a Sodium -Total' mg~L <br />f ----- 140 __-__ _____ _____ 140 <br />Tv <br />o Total Suspended Solids r1,.~it _-___ 592 _____ _____ _____ 848 <br /> <br /> Total Phosphorus ~„<~ i_ <br />~ ---- ---- <br />~ <br />Q <br />Turbidity <br />NTt ~ <br />__ _____ 299 <br />_____ <br />_____ _____ 453 <br /> <br />Secondary Drinking Water Standards -Suggested Limits by CDPHE. The secondary maximum contaminant <br />levels are not enforceable, but are intended as guidelines. <br />' Colorado Department of Public Health and Environment (CDPHE) maximum contaminant level (MCL) for <br />Drinking Water. <br />z Colorado Department of Public Health and Environment (CDPHE) standards for groundwater <br />Dissolved Metals during the Nov. 2005 Sampling Event. <br />ALaboratory results shown in RED HIGHLIGHT exceed MCL or suggested limits <br />• <br />