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channels, county/judicial ditches) such as draining, filling, permanent <br />inundation, dredging, diking, stream diversion, impoundment, aquatic plant <br />removal, and riparian alteration. Discuss direct and indirect environmental <br />effects from physical modification of water features, taking into <br />consideration how current Minnesota climate trends and anticipated climate <br />change in the general location of the project may influence the effects. <br />Identify measures to avoid, minimize, or mitigate environmental effects to <br />surface water features, including in -water Best Management Practices that <br />are proposed to avoid or minimize turbidity/sedimentation while physically <br />altering the water features. Discuss how the project will change the number <br />or type of watercraft on any water body, including current and projected <br />watercraft usage. <br />No alternations to other surface waters are anticipated. <br />13.Contamination/Hazardous Materials/Wastes <br />a. Pre -project Site Conditions — Describe existing contamination or potential <br />environmental hazards on or in close proximity to the project site, such as soil or <br />groundwater contamination, abandoned dumps, closed landfills, existing or <br />abandoned storage tanks, and hazardous liquid or gas pipelines. Discuss any potential <br />environmental effects from pre -project site conditions that would be caused or <br />exacerbated by project construction and operation. Identify measures to avoid, <br />minimize, or mitigate adverse effects from existing contamination or potential <br />environmental hazards. Include development of a Contingency Plan or Response <br />Action Plan. <br />MPCA's What's In My Neighborhood (WIMN) database was reviewed to determine if any <br />known contaminated properties or potential environmental hazards are located on the <br />project site or within 150 feet of the project site. The database includes one site within the <br />project site, and one site within 150 feet (see Table 9 and Figure 11). <br />Using the following criteria established by the Minnesota Department of Transportation <br />(MnDOT), the sites were classified into high, medium, and low risk sites: <br />High risk: In general, sites with high environmental risks are properties that have <br />documented releases of chemicals or hazardous or regulated substances (e.g., active <br />and inactive state and federal cleanup sites, active and inactive dump sites, and active <br />leaking underground storage tank sites), strong evidence of contamination (e.g., soil <br />staining, stressed vegetation), or storage of large volumes of petroleum or other <br />chemicals (e.g., bulk storage tank facilities). <br />Medium risk: Sites of medium environmental risk are properties where smaller <br />volumes of petroleum, chemicals, or hazardous materials are frequently stored and <br />used (e.g., registered underground and aboveground storage tanks, vehicle repair <br />facilities, metal working shops), but at which no evidence of spills or releases exists, <br />or properties with documented releases that have been "closed" (signifying no <br />further cleanup actions deemed necessary) by the MPCA. Closed sites, such as closed <br />leaking underground storage tank sites, are considered medium risks because <br />Haviland Fields EAW 17 September 2023 <br />