Minutes - Council - 06/12/1990 - Laserfiche WebLink

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elevation and continued use of the lot as a drainage area. Councilmember DeLuca suggested bringing the lot elevation on Lot 1, Block 5, Rum Acre Estates to a maximum of two feet below road grade which would leave sufficient room for construction of a swale and the pond would retain as little water as possible, but enough in the event of a hundred year storm. Mr. Dick Knutson, developer of Juniper Woods, was present and indicated that the level of the ponding area on Lot 1, Block 5, Rum Acre Estates, prior to construction, was 18 inches below road grade. Councilmember Cich indicated that the lot in Rum Acre Estates should be brought up to its previous elevation utilizing permeable materials. Mr. Otto noted that with the installation of storm sewer pipe, the owner of the lot in Rum Acre Estates should be able to haul in additional fill to meet the 18 inch above street grade requirement and then the lot would become a buildable lot. Mr. Goodrich stated that Mr. Knutson owned the lot and if he wants to provide an alternate source for drainage, he may make the lot buildable. Mr. Otto restated the Council's motion as being one of selecting Alternative "A" as presented by the City Engineer in the Council Agenda modified to include the installation of storm sewer pipe on Lot 1, Block 5, Rum Acre Estates, filling of the existing pond in Rum Acre Estates back to the approximate elevation existing prior to any excavation with the intent to maintain an approximate elevation of 18 inches to two feet below the existing road grade and minimizing any standing water and replacing the top soil and planting native grasses and flowers. Mr. Harfley stated that with their motion Council is changing standards for storm sewer drainage systems. Mr. Hartley stated that the Engineer is operating on the 100 year standard. Mr. Otto noted that the pipe will still be sized for a 100 year storm but filling in the ponding area will lose some capacity for surging. Mr. Goodrich inquired as to the potential damage for failure of the pipe to handle surges. Mr. Otto replied that the water would spread over a wider area rather than being contained in the basin. Mr. Otto also noted that there will be a cost incurred with adding fill material to the ponding area and that will be the responsibility of the City. Councilmember DeLuca inquired if the developer would be responsible for reimbursing the City some of the restoration costs if he decides to make the lot a buildable lot. Mr. Hartley replied that in accordance with the City Charter, it would be possible to specially assess the property if the property owner did not oppose the assessment. Councilmember Peterson stated that when the cost for restoration is known, a discussion should take place as to who will be responsible for those costs. Motion carried. Voting Yes: Mayor Reimann, Councilmembers Peterson, Pearson, DeLuca and Cich. Voting No: None Absent: None Mr. Otto requested Council approval for a change order to install storm sewer pipe on Lot 1, Block 5, Rum Acre Estates. Motion by Councilmember DeLuca and seconded by Councilmember Pearson to adopt Resolution g90-06-170 Approving a Change Order in the Amount of $8,520.00 for the Installation of Storm Sewer System on Lot 1, Block 5, Rum Acre Estates. Further discussion: Mr. Otto noted that this change order is for installation of storm sewer pipe only and not for restoration of Lot 1, Block 5, Rum Acre Estates. Councilmember Cich indicated that City Council would take action on the proposed restoration of the subject lot after the cost estimates are provided. Motion carried. Voting Yes: Mayor Reimann, Councilmembers DeLuca, Pearson, Peterson and Cich. Voting No: None. Absent: None City Council/June 12, 1990 Page 7 of 13