Agenda - Public Works Committee - 10/21/2014

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Councilmember Riley pointed out the sediment ponds are created for functionality. The city takes care of any functionality issues, and this is already in the policy. He also mentioned the City should educate the public on vegetation removal as well as what it takes for the City to maintain the ponds to be functional. Parks and Assistant Public Works Superintendent Riverblood stated staff has that conversation with individuals on a case by case basis. City Administrator Ulrich noted other cities have stricter regulations, which Ramsey may impose in the future as well. Mayor Strommen mentioned the possibility of storm water retrofits, as other cities have done. Motion by Councilmember Kuzma, seconded by Councilmember Riley, to recommend that the City Council makes no change in the storm water pond maintenance practices. Further discussion: City Administrator Ulrich said perhaps the EPB can state the expectations for water quality and explain how situations such as blowing grass clippings into the street flows into storm water retention ponds and causes issues. Councilmember Kuzma amended the motion as follows: Motion by Councilmember Kuzma, seconded by Councilmember Riley, to recommend that the City Council makes no change in the storm water pond maintenance practices and requests the EPB view the City's ponds and vegetation and assist in educating the public on what can be done by the residents. Motion carried. Voting Yes: Chairperson Backous, Councilmembers KuLnla and Riley. Voting No: None. 6.0 COMMITTEE / STAFF INPUT 6.01 Consider Drainage Concerns at 5220 - 156th Lane NW City Engineer Westby reviewed the staff report and noted that the standards of drainage ponds may not have been in place when this development was built. The current standards call for mandatory ponding on site for every new development. He confirmed in this case, the water does encroach on the resident's yard; it does not always stay contained in the storm water retention pond. Flooding occurs outside the easement area. He indicated there is other flooding in the area. He suggested staff review the drainage system and determine if there is adequate storm water retention capacity. He offered for staff to review and update the model. David Full, 16325 Marmoset, spoke on behalf of his daughter who lives off 156th Lane. He pointed out on the map where the high water level was this past year. The he expressed concern at the amount this storm water pond must fill up before it flows to the next retention pond. Public Works Committee / September 16, 2014 Page 3 of 9