Agenda - Council - 08/12/2019 - Laserfiche WebLink

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garage and driveway. Based on the consensus reached at the Public Works Committee meeting, staff obtained survey grade topographic data along the west edge of Mr. Aberle's property and along the south edge of the property and reviewed the data to reach the following findings: • Before Covenant Meadows was development, 11.125 acres of land drained onto Mr. Aberle's property from the north and west, contributing 3.1 cubic feet per second of runoff from a 100-year storm event. • After Covenant Meadows was developed, 1.306 acres of land drain onto Mr. Aberle's property from the north and west, contributing 0.75 cubic feet per second of runoff from a 100-year storm event. • The Covenant Meadows development did not alter drainage patterns along the west or south sides of Mr. Aberle's property. • The low areas in the interior of Mr. Aberle's property existed before the Covenant Meadows development was constructed. • Mr. Aberle's concerns with drainage in and around his garage resulted from the grading modifications Mr. Aberle completed during construction of the Covenant Meadows development. • Lastly, staff recommended filling the low area to allow stormwater runoff to drain to the south and east without ponding. City Engineer Westby reported that Mr. Thomsen installed the two eight -inch culverts and re- graded Mr. Aberle's driveway this spring as promised. Staff believes that the property owner's concerns as stated are unfounded. He noted that the property owner has not responded to the letter sent by City staff over one month ago. Chairperson Kuzma stated that it appears the City has done everything it could, and the matter should be considered closed. Councilmember Heinrich stated that in her opinion the letter was an opportunity for the resident to reply and agrees that the matter should be considered closed. Councilmember Riley confirmed that the City has done its work. It was the consensus of the Committee that this issue is closed, that no further contact with the property owner is required in regard to this matter, and that the property owner does not need to be invited back to address the Committee on this matter. City Engineer Westby stated that the property owner on the other side of 172nd Lane NW has come to City staff with concern over standing water on his property this spring. He stated that staff worked with that property owner a lot during the Covenant Meadows project to ensure that the desired access to his shed could be provided. He stated that he did go to the resident's property and staff is going to look at the ditch line along that property to further investigate if something needs to be done to resolve his concerns. 6. COMMITTEE / STAFF INPUT Public Works Committee / June 18, 2019 Page 5 of 7