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i• <br />Lupton Lakes Sand and Gravel Mine - Ft. Lupton, Colorado <br />Water Quality Monitoring <br />r;rn„nriwatar nt,ality mnnitnrino as required by the Division of Minerals and Geology Permit #M-2004-078 <br />• <br /> CRMW-07 <br /> limits by <br /> Parameters Units CDPHE~~~ Oct-05 Nov-05 Dec-05 Apr-06 Jul-06 Oct-06 <br />m Arsenic -Total' n,gll 0.01 O.OOE; ---- ---- ---- 0.015 ---- <br />~ ~ Fecal Coliform ~ ABSENT ---- U U U ---- <br /> T i <br />toc <br />E c '~ Fluoride n,c~it a 0 ~5 0.96 0.91 0.89 1.9 0.91 <br />. <br />._ <br />` <br />a ~ Mercury n, q; t_ 0.002 U ---- ---- ---- 0.00024 ---- <br />~ Nitrate-N n,q,L t0 27.9 ii 31.4 19.5 13.5 15.7 51 <br />d Chloride mg/L 250 128.2 122 107 99.9 100 123 <br />~ Iron -Total' n,yrt. 0.3 ~.SGG 0.57 0.63 110 75 73 <br />~ c ~ pH units 6.5 - 8.5 6.9 7.2 7.54 7.41 7.35 7.02 <br />j c Sulfate mgl~ 250 ~ f~`~~9 209 199 192 181 228 <br />r <br />~ Total Dissolved Solids mg1L 500 r ti7 852 842 743 186 1100 <br /> Bicarbonate r»c,rL ---- 1 G4.5 149 222 211 211 147 <br /> Calcium -Total3 mgl~ -- 1 15.8 91 84S 100 94 120 <br />d <br />~ Carbonate n,gir - U U U U U U <br /> <br /> Magnesium -Total3 mg+'~ -- 27.7 23 19 35 29 37 <br />m <br />n- Sodium -Total3 n,yiL - 79.4 110 120 97 100 120 <br />o Total Suspended Solids mg;L - 4~~80 2410 11100 8520 5480 2520 <br /> <br /> Total Phosphorus ,»g~L N/A ---- ---- ---- ---- <br />- <br />° <br />Q <br />Turbidity <br />tutu <br />- <br />(i88 1330 4030H 16.1 3060 2350 <br /> Total [ xLactah!e Hydrocarbons rngrl. ----- ---- "--- ---- ---- ---- <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 />2 Colorado Department of Public Health and Environment (CDPHE) standards for groundwater <br />3 Dissolved Metals during the Nov. 2005 Sampling Event. <br />'Laboratory results shown in RED HIGHLIGHT exceed MCL or suggested limits <br />• <br />