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- Solid Waste <br />Solid waste service includes pick-up by <br />disposal at the county landfill. For <br />commercial development on the subject site, <br />will be approximately 15.5 waste generation <br />yards of solid waste/year. A WGU is a <br />measurement equivalent to 2.9625 cubic yarn <br />private operators and <br />a 31100 square foot <br />solid waste generation <br />units (WGU) or 46 cubic <br />Waste Generation Unit <br />is of waste/year. <br />While WGU's are units of measurement which can be applied to either <br />commercial or residential uses, WGU's must be considered in terms <br />of residential units in order to correspond to the county's solid <br />waste level of service standards. According to the county's solid <br />waste regulations, each residential unit generates 1.6 WGU/unit. <br />With the county's adopted level of service standard of 2.37 cubic <br />yards/person/year and the county's average of two persons/unit, <br />each WGU is equivalent to 1.25 people (2/1.6 = 1.25) and 2.9625 <br />cubic yards of solid waste/year (1.25 X 2.37). To calculate the <br />total cubic yards of solid waste for the most intense use allowed <br />on the subject property under the proposed land use amendment, <br />staff utilized the following formula: Total number of WGU's X 1.25 <br />X 2.37 (15.5 X 1.25 X 2.37 = 46 cubic yards/year). <br />A review of the solid waste capacity for the active segment of the <br />county landfill indicates the availability of more than 900,000 <br />cubic yards. The active segment of the landfill has a 3 year <br />capacity, and the landfill has expansion capacity beyond 2010. <br />Based on staff analysis, it was -determined that the county landfill <br />can accommodate the additional solid waste generated by the <br />proposed amendment. <br />- Drainage <br />All developments are reviewed for compliance with county stormwater <br />regulations which require on-site retention, preservation of <br />floodplain storage and minimum finished floor elevations. In <br />addition, development proposals must meet the discharge <br />requirements of the county Stormwater Management Ordinance. Any <br />development on the site will be prohibited from discharging any <br />runoff in excess of the pre -development rate. <br />In this case, the minimum floor elevation level of service <br />standards -do not apply, since the property is not within a <br />floodplain. Both the on-site retention and discharge standards do <br />apply. With the most intense use of this site, the maximum area of <br />impervious surface for the proposed request will be approximately <br />10,019 square feet. <br />In order to maintain the county's adopted level of service, the <br />applicant will be required to retain approximately 11825 cubic feet <br />of runoff on-site for a 25 year/24 hour storm event as calculated <br />based on total square footage of impervious surface, soil <br />characteristics, pre -development runoff rate, and any discharge <br />rate adopted by an appropriate drainage district. With the soils <br />characteristic of the site, it is estimated that the pre - <br />development runoff rate is 1 cubic foot/second. <br />Based upon staff's analysis, the drainage level of service <br />standards will be met by limiting off-site discharge to its pre - <br />development rate of 1 cubic foot/second and requiring retention of <br />the 11825 cubic feet of runoff for the most intense use of the <br />property. <br />As with all development, a more detailed review will be conducted <br />during the development approval process. <br />83 <br />ROOK F6-94 <br />.s <br />