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3. Performing a bathymetric survey, visual inspection. and taking photographic documentation of the inlets and outlets of the selected pond. 4. Evaluating pond capacity and water quality improvement potential based on typical MPCA basin sizing recommendations and requirements of the city's MS4 permit. 5. Evaluating the current and historic wetland status at the selected pond site. 5. Completing planning -level opinions of cost for sediment removal and outlet structure modifications for improved water quality treatment. 7. Performing a preliminary prioritization of pond improvements and maintenance needs. This stormwater pond evaluation and prioritization process is intended to aid city staff with scheduling and budgeting appropriate resources for future pond maintenance and/or expansion and to provide the city a better understanding of Silver View Pond's current condition and water quality treatment and flow detention functionality. An ancillary benefit of this stonnwater pond evaluation is that it can also be used as a first step in determining the pond's current or baseline treatment efficiency and how that efficiency compares to Rice Creek Watershed District's (RCWD) Total Maximum Daily Load (TMDL) discharge requirements for the area. Any pond improvements should be coordinated with the RCWD, MnDNR, and the US Army Corps of Engineers. To better determine the benefit of any proposed water quality improvements, it would be advisable to install monitoring, stations before any construction begins and monitoring, should take place prior to and after construction. The preconstruction monitoring would provide a better understanding of the basin's current treatment efficiency and baseline functionality. The post -construction monitoring would help verify, quantify, and document the basin's improved treatment efficiency and functionality. Modeling could also be done to estimate the benefit to Rice Creek or other downstream water bodies of any pond improvements. 2.3 Stormwater Pond Selection As a pilot project to develop the city's storm'. aicr pond inventory program, the city chose Silver View Pond for evaluation in 2011 (see Figure 1). The city selected this pond because it was likely to have significant sediment accumulation due to its age and location. The Silver View Pond assessment represents 1 of S2 strictures located within the City of Mounds View that are regulated by their MS4 permit. 11 is intended that the evaluation process used for Silver View Pond be refined (if needed/ and then used for evaluating the city"s additional ponds in future phases as the city continues to assess its 11 MPIs'3 MN 6+ 21fQ1092 Silver Fick Pood Asir ;rncnl Woirkhles Rerorl SiI4et View Pond Assrsimeuf-TinaI.docx