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Cyphers Logistic Park AUAR 42 March 2022 12. Solid Wastes, Hazardous Wastes, and Storage Tanks a. Pre-project Site Conditions – Describe existing contamination or potential environmental hazards on or in close proximity to the project site, such as soil or groundwater contamination, abandoned dumps, closed landfills, existing or abandoned storage tanks, and hazardous liquid or gas pipelines. Discuss any potential environmental effects from pre-project site conditions that would be caused or exacerbated by project construction and operation. Identify measures to avoid, minimize, or mitigate adverse effects from existing contamination or potential environmental hazards. Include development of a Contingency Plan or Response Action Plan. The Minnesota Pollution Control Agency’s (MPCA) What’s In My Neighborhood (WIMN) database was reviewed to determine if any known contaminated properties or potential environmental hazards are located within the AUAR s tudy area. Two sites were identified within the AUAR study area and two sites were identified within 250 feet of the AUAR s tudy a rea (see Table 8 and Figure 16). Using the following criteria established by the Minnesota Department of Transportation (MnDOT), the sites were classified into high, medium, and low risk sites: • High risk: In general, sites with high environmental risks are properties that have documented releases of chemicals or hazardous or regulated substances (e.g., active and inactive state and federal cleanup sites, active and inactive dump sites, and active leaking underground storage tank sites), strong evidence of contamination (e.g., soil staining, stressed vegetation), or storage of large volumes of petroleum or other chemicals (e.g., bulk storage tank facilities). • Medium risk: Sites of medium environmental risk are properties where smaller volumes of petroleum, chemicals, or hazardous materials are frequently stored and used (e.g., registered underground and aboveground storage tanks, vehicle repair facilities, metal working shops), but at which no evidence of spills or releases exists, or properties with documented releases that have been “closed” (signifying no further cleanup actions deemed necessary) by the MPCA. Closed sites, such as closed leaking underground storage tank sites, are considered medium risks because residual soil or groundwater contamination may exist. • Low risk: Low environmental risk sites include properties where minor volumes of chemicals or hazardous materials have been used or stored (e.g., hazardous waste generators, and possibly some farmsteads and residences). Table 8 : MPCA What’s in My Neighborhood Sites Site ID Site Name Activity Status Activity Risk Level 108620 Lake Elmo Public Works Active Hazardous Waste – minimal quantity generator Low 95697 Lake Elmo Public Works Facility Inactive Construction Stormwater Low Active Underground Tanks Medium 28670 Oakwood Animal Hospital Active Hazardous Waste – very small quantity generator Low