2008-12-17_HYDROLOGY - M2004078 (6)

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Lupton Lakes Gravel Mine - Ft. Lupton Colorado 2008 Water Quality Monitoring Groundwater nuality mnnitnrinn no rcn..irmA kil #k- r\i.dei.. -4 &A:---I- _J - - - --- - - - - - - - - -toy . p...In 7r1Y1-6VVY-V 10 limits by 2007 Proposed South Recharge Parameters Units CDPHO'2 Baseline Levels Jan-08 Apr-08 Jul-08 6ct-08 Methyl-t-butyl ether Ng/L ----- ---- Benzene Toluene Ng/L 1,000 ~-- -- -- - - . _- Ethylbenzene Ng/L 700 0 m,p-Xylene Ng/L ,400 to 10, ~-- - ---- - --- o-Xylene Yg/L 400 to 10,0 ---- Xylene (Total) Ng/t ,400 to 10,00 Aldrin pg/L a-BHC pg/L _- ~- - - ---- ---- ---- b-BHC V9/L -- ---- -- --- --- --- d-BHC Ng/L --- ---- --- g-BHC Ng/L -- Chlordane (Technical) pg/L ----- --- --- a-Chlordane Ng/L 0.10 to 2 ---- 3 g-Chlordane us/L 0.15 c 4,4'-DDD ug/L 0.1 --- -- - --- v 4,4'-DDE Ng/L 0.1 4,4'-DDT Ng/L 0.002 ---- .o Dieldrin Ng/L 42 o Endosulfan I pg/L 42 -- - - --- -- 5 Endosulfan II Ng/L 42 --~ ---- ---- --- ___ p Endosulfan sulfate yg/L 2 ---- ---- --- ---- -- Endrin Ng/L 2.1 ---- - --- --- -- Endrin aldehyde ug/L 0.008 to 0.4 --~ --- --- --- -- Endrin ketone pg/L 0.004 to 0.2 ---- Heptachlor pg/L 35 to 40 --~ --- --- --- - _ Heptachlor epoxide pg/L 0.032 to 3 Methoxychlor pg/L 35 to 40 Toxaphene Ng/L 0.032 to 3 _- C?_ r\.. _1. .?._? ....v.+,...cu, v. n mu.y rvuic, vwi iua:us - JUyyCSICU LIFFHES Qy liUrnt. i ne secontaary maximum 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 2 Colorado Department of Public Health and Environment (CDPHE) standards for groundwater 3 Dissolved Metals during the Nov. and Dec. 2005 Sampling Events. *Laboratory results shown in RED HIGHLIGHT exceed MCL or suggested limits