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ITEM 13. WATER USE <br />Item <br />No. <br />13.1 <br />Mitigation Description <br />Because the COR site is within a DWSMA, special <br />precautions are needed to protect groundwater resources. To <br />make sure this occurs, any discharge of runoff into an area <br />dedicated to infiltration will be pre-treated through such <br />practices as particulate settling, vegetative filtration, <br />skimming, installation of compact, sub -grade treatment (ex. <br />catch basin inserts, cyclonic separators, filters), and various <br />types of pre-treatment soil filtering systems. These practices <br />will be routinely maintained and inspected to make sure <br />these pre-treatment practices do not provide a pathway for <br />contamination of groundwater. Areas that are potential <br />major sources of contamination ("hot -spots") will be <br />identified during construction and special precautions <br />added. These areas would include any location where <br />pollutant spills are more likely to occur (service stations, <br />public works/police/fire fueling operations, significant <br />chemical storage). The City has completed a Wellhead <br />Protection Plan, which was approved by the Minnesota <br />Department of Health in January 2010. <br />13.2 Within WHPAs, the use of conventional underground <br />storage tanks to store anything other than water is restricted. <br />If underground tanks are utilized in these areas, they must <br />be double -walled with interstitial sensors and a network of <br />monitoring wells must be installed to assess potential <br />groundwater contamination. In addition, an emergency <br />response plan should be developed for the immediate <br />2013 Update <br />The city will continue to work to <br />implement these measures. <br />The city will continue to work to <br />implement these measures. <br />2018 Update <br />The city will continue to work to <br />implement these measures. <br />Little Dukes (located at the <br />intersection of Sunwood Dr. NW <br />and Zeolite St. NW) is an active <br />gas filling station within the study <br />area. This filling station contains <br />underground storage tanks that <br />are double -walled. <br />7 Mitigation Plan Update - 2018 September 2018 <br />