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No other surface water features (lakes, streams, intermittent channels, or <br />county/jurisdictional ditches) will be physically or indirectly altered during the construction <br />or operation of the proposed project. Cedar and Wilkinson Lakes were avoided during the <br />preliminary design phase of the overall site plan (Appendix B). <br />Temporary erosion and sediment control best management practices (BMPs) will initially <br />be installed (per the project's SWPPP), maintained/repaired, and amended throughout the <br />construction phases to avoid indirect impacts to water resources. BMPs may include (but <br />are not limited to) silt fence, bio-rolls/filter logs, rock construction entrances, mulch/hydro <br />mulch, and permanent native seeding or turf seeding in appropriate areas. Following <br />construction, permanent constructed stormwater treatment infrastructure (e.g. <br />infiltration basins, filtration basins, holding ponds, vegetated swales, etc.) will help protect <br />and provide storage and treatment to waters prior to discharging into water resources. <br />13. Contamination/Hazardous Materials/Wastes: <br />a. Pre -project site conditions - Describe existing contamination or potential environmental hazards <br />on or in close proximity to the project site such as soil or ground water contamination, abandoned <br />dumps, closed landfills, existing or abandoned storage tanks, and hazardous liquid or gas <br />pipelines. Discuss any potential environmental effects from pre -project site conditions that would <br />be caused or exacerbated by project construction and operation. Identify measures to avoid, <br />minimize or mitigate adverse effects from existing contamination or potential environmental <br />hazards. Include development of a Contingency Plan or Response Action Plan. <br />Minnesota Pollution Control Agency (MPCA) records do not indicate any current or former <br />contamination sites within or immediately adjacent to the project area. The MPCA's What's In My <br />Neighborhood database of known sites within proximity of the project area is illustrated on Appendix <br />A — Figure 11. There were two documented petroleum leaks within close proximity to the project site. <br />These leaks occurred at the Biolab Corporation and Holiday Stationstore #3567 sites, both of which <br />were located approximately 0.07 miles southeast of the project site. The eiolab site had a release <br />documented on March 6, 1990, which was issued regulatory site closure on January 15, 1991. The <br />Holiday site had releases documented on October 11, 2007 and April 7, 2017. These releases were <br />issued regulatory site closures on July 7, 2008, and December 21, 2017 respectively. <br />The project proposer anticipates a minimal risk of encountering contaminated materials or <br />groundwater during construction based on the lack of past land uses and due to geographic location <br />of the listed leak sites in relation to the project area. Project construction and operation is not expected <br />to cause or exacerbate a pre -project contaminated condition(s); therefore, no measures are planned <br />to avoid, minimize, or mitigate adverse effects from existing contamination or potential environmental <br />hazards. <br />If potentially contaminated materials (or other environmental hazards) are discovered during <br />construction activities, the project proposer/contractor will immediately cease activities in the area, <br />then take appropriate and reasonable actions to contain and reduce the human health/environmental <br />risk prior to contacting the State of Minnesota Duty Officer, Anoka County, and project proposer's <br />representative. The development of a Contingency Plan or Response Action Plan will be initiated if <br />analytical results characterize the discovered materials as a regulated contaminated waste. <br />Page 19 <br />