2008-12-17_HYDROLOGY - M2004078 (6)

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Lupton Lakes Gravel Mine - Ft. Lupton Colorado 2008 Water Quality Monitoring Groundwater ouality monitorina as required by the Division of Minerals and Geoloov Permit #M-2004-078 limits by CRMWO1 Parameters Units CDPHE''2 Baseline Levels Jan-08 Apr-08 Jul-08 Oct-08 Arsenic - Dissolved mg/L 0.01 0.03 -- 0.0044 ---- 0.036 Fecal Coliform mpn / ABSENT 3.7 -- U ---- U 100 ml E C Fluoride mg/L 4 1.4 0.99 1.25 1.3 0.14 Mercury - Dissolved mglL 0.002 0.0002 -- 0.001 -- u .` G Nitrate-N mg/L 10 57.6 30.39 19.78 16.06 12.6 Chloride mg/L 250 175 210.86 152.5 132.6 119.45 3 Iron - Dissolved mg/L 0.3 0.63 U 0.05 0.202 0.154 OC C - pH units 6.5-8 . 5 - 7.02 7.29 8.00 7.47 N C Sulfate mg/L 250 251 211.64 235.4 207.01 181 C TOtal Dissolved Solids mg/L 500 1262 1152 --- 605 910 Bicarbonate mg/L -- 384 375.9 373.3 293.5 227.5 Calcium - Dissolved mg/L -- 154 170.3 179.9 116.1 89.4 m Carbonate mg1L 0 u u u U Magnesium - Dissolved mg/L 44 34.8 33.5 27.1 19.4 IL Sodium - Dissolved mg/L -- - 166 168.6 154.9 126.7 131.3 c Total Suspended Solids mg/L ----- 8892 3650 15120 3987 8740 0 Total Phosphate mg/L - - 3.70 -- 11.8 --- 3.88 a Turbidity NTU ---- -_-- 1588 27.7 1763 3390 Total Extractable Hydrocarbons mg/L ---- 0 - U -- U 2,4-D pg/L - -- -- u - u 2,4-DB pg/L --- --- - U --- U Dalapon Pg/L 200 Dicamba pg/L ---- u - U N Dichiorprop Pg/L 0.52 to 5 ---- --- U ---- U 9 Dinoseb pg/L 7 -- - u 0 MCPA u9/L ---- --- ---- U ---- U MCPP Ng/L - - --- u -- u 3,5-Dichlorobenzoic Acid yg/L - .. Chloramben pg/L W. v. NN _.._ _... `0e Bentazon Pg/L - --- , C o Picloram Pg/L ..._ V DCPA Pg/L - Acifluorfen pg/L - -- - -- -- - Pentachlorophenol pg/L 0.29 to 1.0 ----- 2,4,5-T pg/L ---- - ---- U -- U 2,4,5-TP Silvex Ng/L ---- --- -- U -- U