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I~,~:~ .~:xated by t~is development would require a substantial amount of maintenance grading to keep he x'oadway :i~ a good serviceable condition. It is for this reason that Staff would recommend granting a conditional use permit for this operation be made conditional upon 143rd Avenue N.W. and Jaspar Street N.W. being hard-surfaced to a nine ton road design standard. Drainage and Gradjnu' The existing site is relative.,ly flat. The grading plan calls for a minor regrading of the site which will cause drainage to be diverted toward the existing pond located in Outlot A. The site'plan calls for the placement of silt fence around the perimeter of the existing pond in Outlot'A, protecting the existing vegetation and the pond from sedimentation caused from the regrading. There is presently no outlet from pond A. However, the City's Comprehensive Storm Drainage Plan call~ for !he eventual construction of an outlet from this pond which will discharge to the existing storm sewer in Sunfish Lake Boulevard along a future roadway which would be placed within Outlot B of the Gateway North Industrial Park subdivision. This pond area also served as drainage repository for ail of the Gateway North Industrial Park subdivision. Although just slightly over One acre will be rendered impervious on this site due to the development of bituminous pa~king and buildings, an additional ten acres will be cleared of existing tuff and gravel and used for raw or finished product stockpiling. The run-off from these areas can be expected to increase over its present condition. It is estimated that the additional run-off from the development of this facility ,would raise the water level in the approximate one acre ponding area by an estimated six inches from a ten year storm. I would therefore conclude that this pond is adequate to serve as a drainage facility for this development. The grading plan also identified a ten foot berm along Jaspar Street N.W. and the northern boundary of the property and a four foot berm along the three sides of Foster Cemetery. The ten foot berm along the northern boundary of the property will interfere with the proposed access easement to the Foster Cemetery. It is recommended that this berm be moved southward to allow for reasonable;vehicular access along the northern property line to Foster Cemetery. Additionally, the berm appears to be steeper than a four to one slope which would be the steepest allowable slope which can he,comfortably mowed. All slopes which anticipated turf establishment should be flattened to a maximum of four to one. Recommendation: City Staff recommends reviewing and amending as necessary, the proposed findings of fact and proposed conditional use permit, and recommending Council approval of same. Commission Action: Motion to: Recommend that City Council adopt Findings of Fact relating to Bury and Carlson's request for a conditional use permit to establish a processing facility for demolition cement and asphalt in the BW District. -and- Motion to: Recommend that City Council approve the issuance of a conditional use permit to Bury and Carlson contingent upon 143rd Avenue N.W. and Jaspar Street N.W. being improved to 9 ton st~dards and the site plan being modified as follows: a) designate lighting plan; b) design.gte refuse storage area and required screening; c) redesigning the site pian to allow for a 33 foot outlot along the northern boundary of the site and a 20 foot side yard setback. Review Checklist: P&Z: City Adn-finistrator City Engineer Zoning Adn-finistrator 7/23/92