2008-12-17_HYDROLOGY - M2004078 (6)

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Lupton Lakes Gravel Mine - Ft. Lupton Colorado 2008 Water Quality Monitoring Groundwater auality monitorina as required by the Division of Minarals and Ganinnv Parmit !!M-9nnd-n7A limits by CRMW04 Parameters Units CDPHEP Basellne Levels Jan-08 Apr-08 Jul-08 Oct-08 Arsenic - Dissolved mg/L 0.01 0.10 - 0.0017 - 0.0035 3 Fecal Coliform o ABSENT 1.0 --- U ---- 9 10 ml Fluoride mg/L 4 1.64 0.96 1.13 1.19 0.12 d ,+ Mercury - Dissolved mg/L 0.002 0.0002 ---- 0.0004 ---- u Nitrate-N mg/L 10 29.9 11.19 11.19 3.29 5.84 Chloride mg/L 250 158 97.9 113.62 47.29 86.79 ? Iron -Dissolved mg/L 0.3 0.63 u 0.28 0.121 0.171 C pH units 6.5 - 8.5 - 7.15 7.07 6.9 6.99 U) C Sulfate m /L s 250 240 159.03 190.36 83 135.83 G Total Dissolved Solids m /L 500 1075 630 - 376 670 Bicarbonate mg/L ----- 384 235.6 251.3 141.8 15.4 Calcium - Dissolved mg/L --- 168 94.9 117 46.3 75.2 m Carbonate mg/L ---- 0 u u u u Magnesium - Dissolved mg/L ----- 68 21 28.3 10.2 16 CL Sodium - Dissolved mg/L - 150 97.6 108.8 59.7 79.1 o Total Suspended Solids mg/L -- 12515 5130 4360 1145 10100 ,'$ Total Phosphate mg/L -- 5.10 --- 1.7 ---- 5 o V Turbidity NTU ---- -__ 2285 2310 802 4810 Total Extractable Hydrocarbons mg/L ----- 0 M -- U 2,4-D Ng/L -- --- u - - u 2,4-DB pg/L _____ u - - u Dalapon Ng/L 200 Dicamba pg/L ---- -- --- u -- u N Dichiorprop Ng/L 0.52 to 5 -- --- U --- u ?y Dinoseb pg/L 7 -- -- u --- - MCPA V9/L - U U MCPP Ng/L - - -- U -- U 3,5-Dichlorobenzoic Acid Ng/L - - - - - - - Chloramben Ng/L e Bentazon Ng/L --- -- ---- ---- -- - c o Picloram Ng/L - ---- - - -- -- _ t DCPA Ng/L Acifluorfen pg/L --- --- - -- -- -- Pentachlorophenol Ng/L 0.29 to 1.0 -- - --- -- - -- 2,4,5-T N9/L --- u u 2,4,5-TP Silvex Ng/L ----- -- --- u -- u