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Table 6.3 - Surface Water Management Issues and Possible Corrective Actions <br />Drainage <br />, <br />Subdistrict <br />Su <br />Surface water <br />Issue <br />Identified <br />Possible Corrective Actions <br />The City has limited <br />financial ability to <br />RCWD <br />• The City is interested in working with RCWD <br />1 <br />City-wide <br />implement water quality <br />WMP <br />on funding water quality BMPs <br />BMPs <br />• Numerous improvement projects have been <br />Insufficient water quality <br />completed as part of the SUIP. In areas not <br />2 <br />City-wide <br />treatment and runoff <br />City <br />within a SUIP area, investigate the need and <br />volume control <br />feasibility to construct water quality <br />improvements. <br />High water levels <br />occurring across City, <br />• Develop detailed City-wide <br />3 <br />City-wide <br />resulting in rising water <br />City <br />hydrologic/hydraulic model to estimate <br />tables and impaired BMP <br />water levels and develop solutions <br />function <br />• Review the findings in the Southwest Urban <br />Low water levels in <br />Lakes Study regarding low water levels in <br />4 <br />SL-1 <br />Spring Lake <br />RCWD, City <br />Spring Lake, and potentially implement the <br />recommended activities. <br />Lack of rate control from <br />wetland causing <br />*Construct an outlet skimmer structure to <br />5 <br />AA-3 <br />downstream pipe <br />City <br />control discharge rates and reduce the <br />capacity issues, existing <br />clogging potential of the outlet pipe <br />flared end frequently <br />clogs with debris <br />Current detention basin <br />outlet north of Red Oak <br />•Rebuild structure to provide proper rate <br />6 <br />AA-4 <br />Court requires frequent <br />City <br />control and reduce maintenance issues <br />maintenance due to the <br />outlet structure design <br />Sedimentation in <br />drainageway east of <br />7 <br />AA-5 <br />Ardan Avenue has <br />City <br />•Remove sediment and restore drainage <br />clogged channel and is <br />corridor <br />creating drainage issues <br />Erosion issues from <br />• Construct volume control measures <br />8 <br />GF-4 <br />Bona Road flared end to <br />City <br />upstream (as part of the SIP) to reduce <br />erosion due to small, frequent rainfall <br />wetland <br />events <br />City of Mounds View 34 <br />Local Surface Water Management Plan Stantec Project No. 193804166 <br />Stantec <br />