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SECTION 2 <br /> <br /> <br /> <br /> <br />Surface Water Management Plan Section 2: Land and Water Resource Inventory <br />City of Arden Hills <br />WSB Project No. 3455-200 Page 13 <br /> <br />2.9. Pollutant Sources <br /> <br />The MPCA maintains lists of the generators of hazardous waste, decommissioned municipal <br />dumps, above ground and underground storage tanks, and leaking underground storage tanks. <br />A map of this information is shown on Figure 12. There is no known water quality information <br />about these sites. Many of the sites on the figure have been cleaned up or are in the process of <br />being cleaned up. The MPCA should be contacted for site-specific details. Maps of active and <br />inactive sites is located on the MPCA website at http://www.pca.state.mn.us. <br /> <br />2.9.1. TCAAP <br /> <br />The most well-known of these pollution sources within the City limits is the TCAAP land, which <br />has been deemed a federal Superfund cleanup site. As stated on the MPCA website devoted to <br />the TCAAP remediation: <br /> <br />“Contamination resulting from past ammunition manufacturing operations at the facility <br />has been identified in groundwater, soil, sediment and surface water. The U.S. Army, <br />U.S. EPA, and MPCA have worked jointly to determine the contaminants involved, the <br />extent of the contamination, and the cleanup that is required. <br /> <br />TCAAP operated for several decades during a time when there were no laws governing <br />disposal of chemicals. During these years, the Army generated industrial wastes that <br />were disposed of using accepted practices of the times, which included on-site dumping, <br />burial, and open burning. The manufacturing processes and historical disposal areas at <br />the facility caused contamination of groundwater, soil, sediment, and to a lesser extent <br />surface water.” <br /> <br />More specific information and answers to frequently asked questions are available on the MPCA <br />website at https://www.pca.state.mn.us/waste/superfund-program. <br /> <br />Specific information on the groundwater contamination from the site are available in the RCGPP. <br /> <br /> <br /> <br /> <br /> <br /> Dr <br />a <br />f <br />t <br /> <br />11 <br />/ <br />2 <br />0 <br />/ <br />2 <br />0 <br />1 <br />7