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u <br />To:Chairman Kelley and Planning Comirission Members <br />City Administrator Moorse <br />Proa:Michael P. Gaffron, Asst Planning & Zoning Administrator <br />Date: <br />Subject: <br />September 9, 1991 <br />#1669 John W. Walker, 1310 Spruce Place - Variance - <br />Continuation of Public Hearing <br />Note: Applicant has provided a revised deck/hardcover proposal, <br />and requested a 50% hardcover credit for the house and garage <br />based on the surface water catchment system currently in place. <br />List of Exhibits <br />Exhibit A <br />Exhibit B <br />Exhibit C <br />Exhibit D <br />Exhibit E <br />Exhibit F <br />Letter of Request <br />Hardcover Calculations <br />Revised Site/Hardcover Plan <br />Applicant's Appeal to Council 8/22/91 <br />Planning Commission Action Notice 8/19/91 <br />Memo & Exhibits of 8/13/91 <br />Discussion <br />The applicant has slightly reduced the size of the proposed <br />deck that will be replacing the existing deck, although a new <br />deck along the south side of the house is still proposed. <br />Applicants have indicated the hardcover items in both the 0-75' <br />and 75-250' zones which they will remove to result in decreases. <br />The pre-1975 hardcover situation has also been defined by the <br />applicant (there are no City records which could confirm this). <br />Please review the letter from applicant's attorney, and the <br />hardcover calculations as well as the attached sketch. <br />Applicants request a 50% credit for the house and garage <br />contributions to hardcover based on the use of an underground <br />catchment system which retains the bulk of the surface water <br />drainage in underground perforated tubing. This system <br />apparently allows for the absorption of the run-off underground, <br />rather than allowing it to run overland towards the lake. <br />In theory, this is an excellent system and would seem to <br />meet the City's water quality enhancement objectives. In <br />practice# the applicant has been pleased with tne function of <br />this system. A technical evaluation of this system is beyond the <br />scope of this review. The capacity of the system and its current <br />condition are not documented. While Planning Commission might <br />wish to discuss the merits of using this drainage system to <br />justify granting a hardcover variance, staff would recommend <br />against giving some hardcover percentage credit to this system