8.1. SR 11-04-2013 - Laserfiche WebLink

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SECTION 4 4. PROBLEMS AND CORRECTIVE ACTIONS Outlined below is an assessment of existing and potential water resource-related problems that are known at this time. These problems have been identified based on an analysis of the land and water resource data collected during the preparation of this plan and through information provided by the City, its residents, and other organizations. A description of any existing or potential problem within the City has been listed and potential future corrective actions have been incorporated into an implementation plan. Refer to Figure 5 in Appendix A for the location of many of the problem areas discussed below. 4.1. Water Quality Problems Problem 4.1.A The City may be contributing to the impairment of the following waters that have been listed as impaired by the MPCA: • Elk River—St.Francis River to Orono Lake (E-coli) • Tibbets Brook(E-coli) • Upper Orono Lake(Nutrients) • Lower Orono Lake (Nutrients) • Mississippi River—Clearwater River to Elk River(Fecal Coliform,Fish Biology) • Mississippi River—Elk River to Crow River(PCB in Fish Tissue) In addition to the impairments listed above,Elk River(from St.Francis River to Mississippi River),Upper and Lower Orono Lake, and the Mississippi River(from Clearwater River to Crow River) are impaired for Mercury. The U.S. Environmental Protection Agency approved the Minnesota Statewide Mercury TMDL in 2007. As stormwater point sources account for less than 1%of the mercury(majority is atmospheric),the City has limited ability to contribute to this TMDL. The City is also located upstream of Lake Pepin, and it will need to comply with the South Metro Mississippi TMDL when complete. Corrective Action 4.1.A The City will work with the MPCA,neighboring communities, and other organizations to address any future impairments and TMDLs as necessary. Problem 4.1.B Contamination that is originating from Waste Management Landfill(which includes municipal solid waste, construction materials, demolition debris)has been identified to be impacting water quality in Rice Lake and Tibbets Brook. This landfill is approved for expansion to the south in width and north into Livonia. Corrective Action 4.1.B As part of any permit for expansion,the landfill will be required to monitor the water quality in Rice Lake and Tibbets Brook and provide any corrective actions that are necessary to address this concern. Problem 4.1.0 Stormwater quality discharged from the downtown area, specifically along Jackson Avenue,has been identified to be of poor quality. Corrective Action 4.1.0 The City will complete a feasibility study to better define and quantify problems identified, outline possible improvement options to provide treatment for improved stormwater quality discharged from Jackson Street and the Downtown area, and implement Surface Water Management Plan City of Elk River Section 4 WSB Project No.01992-030 Page-1