Agenda - Council - 10/08/2019 - Laserfiche WebLink

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C1.1.2 Water Resources Per the April 4, 2019 Scoping 2 Decision Notice (MDH, 2019) surface water resources must be evaluated to determine if they could potentially apply to this Plan. The West DWSMA lies within the Mississippi River — Twin Cities watershed (Mississippi River level 4 subwatershed). The East DWSMA lies within the Rum River watershed. A portion of Jeglens Marsh and some small ponds are the only surface water bodies within the DWSMAs. Wetland areas are also present in the DWSMA. The Rum River is adjacent to the East DWSMA. As shown on Figure C-1, FEMA Flood Zone A for Jeglen's Marsh overlaps a small percentage of the land within the West DWSMA and FEMA Flood Zone AE for the Rum River overlaps a portion of the East DWSMA. Some of the surface water bodies in the DWSMA meet the definition of public waters in Minnesota Statutes Section 103G.005, subdivision 15. In addition, there are areas adjacent to water bodies in the DWSMA that meet the definition of shoreland pursuant to Minnesota Statutes Sections 103F.201 to 103F.221 and consistent with Minnesota Rules part 6120.3300. The City manages the floodplain and shoreland areas as specified in Chapter 117 Article II Division 4, Subdivisions III and IV of the City Code. Geologic conditions in and around the City's DWSMAs result in the aquifer vulnerability in the DWSMAs being classified as Moderate. Based on the aquifer vulnerability classification, it considered to be possible that issues related to surface water resources could have some effect on the water quality in the source water aquifer and should be considered in the development of the management strategies for the DWSMA. The quality of the source water is dependent on the quality of its recharge. Existing surface water management programs in the DWSMAs address water quality and, therefore, reduce the potential negative effects that infiltrating surface waters may have on the source water aquifers. The City believes that existing surface water management programs are adequate to address surface water quality in the DWSMA and to ensure that aquifer recharge and water availability do not become an issue for the City. C1.2 Land Use Data Elements The April 4, 2019 Scoping 2 Decision Notice requires land use data elements to be considered during development of this Plan amendment. Land use and public utility services within the DWSMAs are discussed in this section. In Part 1 of this Plan amendment, `roads, property parcels, and the Rum River were used to define the DWSMA boundaries (MDH, 2018). C1.2.1 Current Land Use Figure C-3 shows the current land uses within the DWSMA. Property parcels that lie partially or completely within the DWSMAs are shown on Figure C-3. Land uses found within the DWSMAs include, but are not limited to, residential, undeveloped land, parks, commercial/industrial, and agricultural. Figure C-4 shows the current zoning within the DWSMAs. C.1.2.1.1 Potential Contaminant Source Inventory A potential contaminant source inventory (PCSI) was conducted within the DWSMAs. As shown on Figure C-1, the aquifer vulnerability in the DWSMAs is classified as Moderate. The types of potential Commented [JG1]: City reviewers please confirm that this statement is accurate or provide the appropriate edit to correct the statement. C-2