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system. No adjustments will be made to single family, duplex residential, and agricultural <br />parcels. It is the responsibility of :he applicant to prove that the wet pond in question rrreets <br />the following design criteria. <br /> <br />Permanent Pool Volume: The volume of the permanent pool ("dead storage") should be <br />at least 1.3 and preferably up to 2.5 times greater than the runoff volume generated from <br />a 0.34 inch rainfall event (average summer storm) over the pond tributary area. <br /> <br />Permanent Pool Depth: To promote settling and provide space for sediment <br />accumulation, the average depth (volume/area) of the permanent pool should be at least <br />4 feet with a maximum depth of 10 feet. <br /> <br />Pond Shape: The pond should be wedge shaped, narrowest at the inlet and widest at the <br />outlet. A minimum length to width ratio of 3:i should be used. The distance between <br />storm sewer outfalls and the pond outlet should .be maximized to prevent <br />short-circuiting. <br /> <br />Detention Time: The pond should provide a detention time of at least 6 hours. <br /> <br />Skimming: The pond should have some type of facility to retain oils and floatable <br />debris. This facility will be maintained by the applicant. Skimming shall be considered <br />adequate if a baffle structure extends at least 4 inches below the normal water surface <br />and the velocity of water passing under the baffle does not exceed 0.5 feet per second <br />for the one year rainfall event. <br /> <br /> Emergency Overflow: An emergency overflow structure or stabilized spillway will be <br /> provided to accommodate discharges during a storm event greater than a 2.5 inch'~ <br /> rainfall. <br /> <br />Side Slopes: For purposes of stability, the side slopes should not exceed three feet <br />hohzontal to one foot vertical. <br /> <br />The motion for the adoption of the foregoing resolution as' duly seconded by Councilm'ember <br />Anderson, and upon vote being taken thereon, the following voted in favor thereof: <br /> <br />Mayor Gamec <br />Councilmember Connolly <br />Councilmember Anderson <br />Councilmember Hendr/ksen <br />Councilmember zimmerman <br /> <br />and the following voted against the same: <br /> <br />None <br /> <br />Resolution #00-07-172 <br />Page 2 of 3 <br /> <br />-279- <br /> <br /> <br />