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2008 Mounds View Comprehensive Plan ________________________________________________________________________ Chapter 5: Public Facilities 5-11 Impaired Waters and TMDLs There is one waterbody within the City of Mounds View currently identified on the state list of Impaired Waters: Rice Creek. In addition, two waterbodies that are outside of the Cities jurisdiction yet receive discharge from the City are also listed on the state list of Impaired Waters: Long Lake and Mississippi River. The list of Impaired Waters is known as the 303(d) list from the applicable section of the Federal Clean Water Act, these waters are ones that do not currently meet their designated use due to the impact of a particular pollutant or stressor. If monitoring and assessment indicate that a waterbody is impaired by one or more pollutants, it is placed on the list. At some point a strategy will be developed leading to attainment of the applicable water quality standard for these impaired waters. The process of developing this strategy is commonly known as the Total Maximum Daily Load (TMDL) process and involves the following phases: 1. Assessment and listing 2. TMDL study 3. Implementation plan development and implementation 4. Monitoring of the effectiveness of implementation efforts The City recognizes that the responsibility for completion and implementation of the TMDL studies lies with the primary stakeholders contributing to the impairment. The City intends to cooperate with the local WMOs and other agencies in the development of the TMDL studies, acknowledging that these outside agencies will take the lead on these studies. It is the intention of the City to implement the items/actions identified in future TMDL Implementation Plans, funding the implementation items/actions as necessary. NPDES Permitting Process The MPCA has designated the City of Mounds View as an NPDES Phase II MS4 community (MN Rules 7090). Mounds View received permit coverage in 2003, however due to a court hearing the MPCA was required to revise the MS4 permit and cities were required to update their SWPPP to comply with the new permit requirements by June 1st, 2006. The revised MS4 permit was approved and coverage was granted to continue coverage under the general permit on May 6th, 2008. The permit application outlined Mounds View’s SWPPP, which addresses six minimum control measures: 1. Public education 2. Public involvement 3. Illicit discharge detection and elimination 4. Construction site runoff control 5. Post-construction runoff control 6. Pollution prevention in municipal operations