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 reauired by the Division of Minerals and Geoloav Permit #M-2004-078 limits by CRMWOI Parameters Units CDPHO'2 Baseline Levels Jan-08 Apr-08 Jul-08 Oct-08 Methyl-t-butyl ether Ng/L -- -- -- u --- u Benzene Ng/L 5 ---- -- U - - U Toluene Ng/L 1,000 -- ---- U --- U u Ethylbenzene pg/L 700 --- ---- u - U 0 m,p-Xylene Ng/L ,400 to 10,0 "- ---- -r- -" U o-Xylene pg/L 400 to 10,00 --- ---- ---- - U Xylene (Total) Ng/L 1,400 to 10,0 --- - "U --- U Aldrin pg/L ----- -- --- u - " u a-BHC Ng/L -- -- '--- -` U U b-BHC pg/L ---- --- U ---- U d-BHC pg/L U -- - U g-BHC Ng/L ----- --- - - u -- u Chlordane (Technical) Ng/L ---- --- -- U --- U H a-Chlordane pg/L 0.10 to 2 - --- u --- u g-Chlordane Ng/L 0.15 ---- ---- U ---- U 0 4,4'-DDD pg/L 0.1 -- --- u -- u v 4,4'-DDE Ng/L 0.1 U --- u 4,4'-DDT Ng/L 0.002 ---- -- U --- U p Dieldrin Ng/L 42 ---- ---- U ---- U o Endosulfan I pg/L 42 --- -- u -- u 5 Endosulfan II Ng/L 42 "-- --" U U IM p Endosulfan sulfate pg/L 2 -- -- u - - u Endrin Ng/L 2.1 --- --- U --- u Endrin aldehyde Ng/L 0.008 to 0.4 ---- --" U --"" u Endrin ketone Ng/L 0.004 to 0.2 -- -- U --- U Heptachlor Ng/L 35 to 40 '-' -- u - U Heptachlor epoxide Vg/L 0.032 to 3 -- -- U -- U Methoxychlor Ng/L 35 to 40 --- --- U -- U Toxaphene pg/L 0.032 to 3 - --- U --- U -?ieconaaryurmivng vvater atanaaros - auggestea emus Dy L.ur-nr-. lilt: sewnuary niaAununi contaminant levels are not enforceable, but are intended as guidelines. 1 Colorado Department of Public Health and Environment (CDPHE) maximum contaminant level (MCL) for Drinking Water s Colorado Department of Public Health and Environment (CDPHE) standards for groundwater *Laboratory results shown in RED HIGHLIGHT exceed MCL or suggested limits