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identified for the Stubbs Bay (SB) subwatershed. Should any improvement sites be identified in the future, this plan should be updated to include proposed sites. Tanager Lake (TL) Subwatershed Improvements TL -1. Hackberry Park Hackberry Park is located on the west side of Willow Drive North, between Elm Lane and Maple Lane. Runoff draining to Hackberry Park currently discharges through an inlet on the north side of park into the storm sewer system and flows west to Tanager Lake without any treatment. Due to the lack of inlet and conveyance capacity, flooding is observed during larger rain events. In order to provide water quality improvement and limit flood potential, a sump manhole with flow baffle, new inlets, and storm sewer improvements should be considered for this location. The retrofit sump manhole would provide stormwater runoff treatment from a previously untreated area of Orono, improving the quality of runoff reaching Lake Minnetonka, and ultimately Minnehaha Creek. In addition, flooding potential would be minimized due to increased conveyance capacity. Prioritization: Low Estimated Cost: Unknown Project Partner(s): MCWD Funding Source(s): City, MCWD, Grant funding Timeframe: Unknown TL -2. Orono Public Golf Course The Orono Public Golf Course is located on the west side of Orono Orchard Road South just south of the intersection with Luce Line Trail. Runoff from the east side of Orono Orchard Road drains under the road and through a wetland and pond on the east side of the Course, outletting through a 24" culvert under Luce Line Trail, and ultimately flowing to Tanager Lake. The west side of the Course drains west through wetlands and ultimately to Tanager Lake. Due to precipitation increases, more frequent flooding is being observed in a few areas of the Course. In order to limit flood potential, volume reduction, storage capacity, and storm conveyance improvements should be considered for this location. Bioretention areas and conveyance improvements would provide volume reduction, additional storage capacity, and improved flow characteristics, thus limiting flood potential. Also, these improvements would provide additional stormwater runoff treatment, improving the quality of runoff reaching Lake Minnetonka, and ultimately Minnehaha Creek Prioritization: Medium Estimated Cost: Unknown Project Partner(s): MCWD Funding Source(s): City, MCWD, Grant funding Timeframe: Unknown West Arm (WA) Subwatershed Improvements Currently, no localized stormwater management improvement projects have been identified for the West Arm (WA) subwatershed. Should any improvement sites be identified in the future, this plan should be updated to include proposed sites. Should any additional localized stormwater treatment improvement projects be identified in the future, this plan should be updated to include proposed projects. City of Orono Surface Water Management Plan February 2019 42