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<br />OCTOBER 2005 LABORATORY RESULTS <br />Lupton Lakes Sand and Gravel Mine - Ft. Lupton, Colorado <br />Water Quality Monitoring Summary <br />Sample Date: 10/7/2005 <br />r rni~nAwarar niia6ty mnnitnrinn as required by the Division of Minerals and Geoloav Permit #M-2004-078 <br />• <br /> Test Wells (CRMW) <br /> MEr`F,by Detection <br /> Parameters Units ~' Limits 01 02 04 06 07 40 41 <br /> Antimony -Total mg/L ~ o.oot U U U U U U U <br /> Arsenic -Total mg/L ~, ~ a ~ ' _ <br />~ o.oot 0.004 0.007 0.003 0.003 0.006 0.005 0.004 <br /> <br />;: <br />Barium -Total <br />mg/L ~ , <br />~r ~ <br />f} ~," =~ <br />0.002 <br />0.492 <br />0.213 <br />0.352 <br />0.198 <br />0.289 <br />0.582 <br />0.476 <br />~ Beryllium -Total mg/L ~~ ~.~» ~ : 0.0002 O.OD5 0.0017 0.0023 0.0017 0.0018 0.0025 0.0033 <br />O1 Cadmium -Total mg/i_ r '~`~ r" o.ooot 0.0022 0.0012 0.0006 0.001 0.0014 0.0004 0.0022 <br />c <br />Y <br />Chromium -Total <br />mg/L <br />o.oot <br />0.005 <br />0.003 <br />U <br />0.004 <br />0.001 <br />0.004 <br />0.002 <br />c <br />p` <br />Fecal Coliform <br />~Y~t' <br />>7 <br />2 <br />U <br />U <br />2 <br />2 <br />2 <br />U <br />2 <br />~ <br />` Fluoride oo ml <br />mg/L , <br />~ <br />~' } »~ ''" ----- 0.86 0.8 1.19 1.01 0.95 1' 1.03 <br />m <br />E <br />Mercury -Total <br />Total <br />t <br />0.0002 <br />0.0004 <br />U <br />0.0002 <br />U <br />U <br />0.0004 <br />0.0004 <br />a` Nitrate Nitrogen mgiL r i;~+' ----- 26.09 18.67 6.38 26.85 27.98 16.8 12.36 <br /> Selenium -Total mg/i_ ; ~ ~~° 0.002 U U U U U U U <br /> Thallium -Total mg/i_ ~ '~~ ?'' ~., o.oot U U U U U U U <br /> Chloride mg/L ----- 136.9 155.5 95.3 125.8 128.2 105.6 104 <br />c ~ Iron -Total mg/L ~ <br />' ----- 10.33 24.56 1.721 7.427 4.566 0.871 7.379 <br />c c ~ pH units ` { <br />' r.`,' ---- 7.12 7.13 7.16 6.9 7.06 7.03 7.1 <br />N p 3 Sulfate mg/L ~ ' ----- 194.4 203.7 150.9 220.3 189.9 173.8 176.4 <br /> Total Dissolved Solids mg/L ----- 994 1019 656 923 767 743 875 <br /> Bicarbonate mg/L ----- 313.8 372.6 231.4 249.2 164.5 215.3 324.5 <br /> Calcium -Total mg/i_ ----- 136.7 119.6 104 125.2 115.8 115.6 117 <br /> Carbonate mg/L ----- U U U U U U U <br />d Magnesium -Total mg/i_ ----- 31.6 36.8 21.1 25.9 27.7 20.5 26.7 <br /> Nickel -Total mg/i_ o.oot 0.05 0.037 0.028 0.03 0.048 0.007 0.045 <br /> Oil&Grease mg/i_ e U U U U U U U <br />a Potassium -Total mg/L ----- 15.8 9 8.4 10.8 21.2 14.6 9.3 <br />m Sodium -Total mg/L ----- 133.5 162.6 77.6 144.9 79.4 97.2 118.8 <br />c <br />Sodium Adsorption Ratio <br />units <br />----- <br />2.7 <br />3.3 <br />1.8 <br />3.1 <br />1.7 <br />2.1 <br />2.6 <br />~ Total Alkalinity mg/L as ___-- 257.2 305.4 189.7 204.3 134.9 176.5 266 <br />Q CaC03 <br /> Total Hardness mg/L as _____ 471.5 449.8 367.2 419.2 403 393.6 402 <br /> CaC03 <br /> Total Suspended Solids mgt 5 10400 4800 2864 4880 4980 4369 5533 <br /> Turbidity NTU o.ot 1490 818 510 660 688 396 939 <br />Secondary Drinking Water Standards -Suggested Limits by CDPHE. The secondary maximum contaminant levels are not <br />enforceable, but are intended as guidelines. <br />"Laboratory results shown in BOLD exceed MCL or suggested limits. <br />• <br />