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<br />!~' <br /> <br />In addition to these CERCLA s~tes involving landfills, six other CERCLA sites <br /> <br />" <br /> <br />exist in the northern Denver Metropolitan region. Two of these involve <br /> <br />:;~ <br /> <br />~ <br />C <br />Q <br />~ <br /> <br />Federally owned facilities; the other four are related .to privately owned <br /> <br />IW <br />,;~ <br /> <br />industrial sites. A brief description of each follows. <br /> <br />,:~~ <br /> <br />Ii <br />~~ <br /> <br />In the Sand Creek drainage two CERCLA sites contribute to both groundwater and <br /> <br />U <br />t.;,: <br /> <br />surface water pollution. The Sand Creek site is located near Sand Creek close <br /> <br />to the Denver/Adams County border at 48th and Holly. The site consists of <br /> <br />1;-'_': <br />-,; <br />.'if.t <br /> <br />four suspected sources of contamination including, acid pits, oil refining, a <br /> <br />chemical production site, and a landfill. Surface and groundwater are <br /> <br />--f~1~ <br /> <br />impacted by landfill leachate; hydrocarbons, pesticides, and acidic wastes. <br /> <br />f::; <br />:i!* <br />.~~ <br /> <br />The second site in the Sand Creek drainage located at 54th and Garfield is the <br /> <br />former site of a chemical plant destroyed by fire in the mid 1960's. The <br /> <br />~~~ <br /> <br />contents of the site were buried nearby and have contaminated soils with <br />toxaphene, chlordane, and dieldrin. <br /> <br />l{~ <br /> <br />The Globeville Metals processing plant, a CERCLA site, isa metals refinery <br /> <br />(,- <br />t~ <br />\?;J <br />'."'~' <br /> <br />located near 5lst and Washington in Denver. Eight acres of electrolyte <br /> <br />';i.'i <br />~~1ii <br /> <br />wastepiles are located on the site. A ditch leading from the site.to the <br /> <br />South Platte River contains high concentrations of cadmium, chromium, and lead <br /> <br />~~il <br />r;') <br /> <br />which have also been detected downstream of the ditch in the Platte River. <br /> <br />~~. <br /> <br />Groundwater both on and off the site contains high levels of cadmium, lead, <br /> <br />iron, and manganese. Since the waste piles are unlined, the metals have been <br /> <br />'\l\ <br /> <br />~>; <br /> <br />attributed to the waste piles. <br /> <br />~::<::; <br />1-~;J <br /> <br />-65- <br /> <br />~.>~ <br />(~ <br /> <br /> <br />. <br />