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2019-06-12 CC Packet
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2019-06-12 CC Packet
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June 5, 2019 <br />Mark Statz <br />Page 2 of 5 <br />Reference: Part 2 Wellhead Protection Plan Proposal, City of Centerville <br />Centerville’s Drinking Water Supply Management Area (DWSMA) has a moderate level of vulnerability. In <br />moderate vulnerability areas, potential sources of contamination that must be accounted for includes other <br />groundwater wells, storage tanks, shallow disposal wells, and other point sources with a capacity to release <br />a large concentration of contamination. <br />The State maintains rough databases of several potential contamination sources. These will be used as a <br />starting point for developing the PCSI. Steps to complete the inventory include: <br /> Any potential sources of contamination will need to be verified, to account for any changes that may <br />have occurred since the State originally cataloged them. <br /> New potential sources of contamination may have been introduced to the DWSMA that the State’s <br />inventory doesn’t account for. Likewise, existing potential sources of contamination may have never <br />been accounted for by the State. These will need to be identified. <br /> Accurate location information or site status is often not available from the State. The PCSI should <br />attempt to refine this information as much as is practical, to ensure the final inventory is a good <br />representation of what lies within the DWSMA. <br /> <br />As part of a previous MDH implementation grant Stantec assisted the City of Centerville with, a preliminary <br />inventory of wells and tanks was completed. This inventory will be updated with any additional available <br />information and incorporated with any other potential contamination sources to be inventoried. <br /> <br />Further data elements that will be required to be included in the plan are maps of the following: <br /> <br />1. An existing comprehensive land use map. <br />2. An existing zoning map. <br />3. A map of oil and gas pipelines. <br /> <br />For the scope of this work plan it is assumed that Centerville can provide the above for the portion of the <br />DWSMA that falls inside the City limits. For the portion of the DWSMA that falls outside of Centerville, it is <br />assumed that the City will assist Stantec in obtain these maps for surrounding cities. <br /> <br />2. Development of Management Plan <br />The management plan comprises the heart of the Part 2 Wellhead Protection Plan. The management plan <br />identifies changes to the water supply system, changes to area land use, problems and opportunities in <br /> <br />46 <br /> <br />
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