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Endrin, and Isodrin; Army agent by-products like Diisopropylmethylphosphonate (DIIvIP); <br />and heavy metals, including Arsenic, Cadmium, Chromium, Lead, and Mercury. <br />Under the "Superfund." Act, the Army and Shell Oil Company, with oversight from the <br />United States Environmental Protection Agency, Region VIII, have been cleaning up the <br />contamination through founeen Interim Response Actions (IRA). The IRAs' allow for <br />some cleanup to occur prior to the approval of the Final Cleanup Plan. These actions <br />include: Groundwater intercept, treatment and boundary systems (onpost and offpost), <br />the Submerged Quench Incinerator (to destroy over 10.5 million gallons of liquid from <br />Basin F), dismantling a hydrazine (rocket fuel) blending and storage facility, closing old or <br />unused wells, draining building 1727's sump, building a wastewater treatment facility <br />onpost, fugitive dust control, sewer remediation, and asbestos removal. Some of the <br />IRAs' listed have become final cleanup actions. <br />In moving toward a final cleanup solution, the RMA is currently working on the Detailed <br />Analysis of Alternatives (DAA). The DAA presents the onpost cleanup alternatives for <br />consideration. The public is strongly encouraged and welcomed to comment on these <br />proposed alternatives and any other Arsenal cleanup activities. <br />TRI-COUNTY HEALTH DEPARTMENT'S ROLE AT THE ARSENAL <br />The primary role of Tri-County Health Depanment at the Rocky Mountain Arsenal is to <br />ensure that all cleanup decisions reflect the input and concerns of the citizens of Adams <br />County, and that the cleanup results in long term protection of health and the environment. <br />Tri-County Health Department first became involved with the Arsenal in <br />1954. The initial involvement was in responding to the numerous <br />air and odor complaints the residents had regarding the Arsenal's <br />activities. Since that time, Tri-County Health Depanment - <br />has been actively involved with the Arsenal at many levels. <br />In 1959, our first major role began with a private offpost <br />private well sampling program called the "Rocky Mountain <br />.-lrsenal's 360 Well Monitoring Program". Tri-County's Platte R;~e <br />staff identified the private wells and collected <br />quarterly water samples for the Army, Shell AgMY OFF~705T <br />and Colorado Depanment of Health sTUC~ +REA <br />laboratories. The 360 program was one of the <br />first offpost sampling programs. This program <br />continued until 1986. ;, <br />Since 1988, Tri-County Health has conducted an <br />intensive door-to-door survey to identify every well <br />and resident in the offpost study azea. The offpost <br />study area is bounded by 88th Avenue and the <br />.arsenal perimeter on the south, the South <br />t <br />\~~,. ,~ <br />C"' \~ \` \~\~ ~ <br />~,\\ `~~'YWL11 <br />j (~ ; <br />/ 1t t <br />~~ R}IA l <br />CO?MERGE <br />CITY <br />SAND CREEK YONTBELIO <br />9~tood Creea <br />