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0 Wastewater Based upon the most intense use allowed under the proposed land use amendment, development of the property will have a wastewater generation rate of approximately 540 Equivalent Residential Units (ERU), or 135,000 gallons/day. This is based upon a level of service of 250 gallons/ERU/day. County wastewater service is available to the site from the North Regional Wastewater Treatment Plant, which currently has a remaining capacity of over 180,000 gallons/day and can accommodate the additional wastewater generated by the subject request. Solid Waste Solid waste service includes pick-up by private operators and disposal at the county landfill. The county's adopted level of service standard for landfill capacity is 1.97 cubic yards/person/year. With the county's average of approximately 2.3 persons/unit, a residential development of 540 units would be anticipated to house approximately 1,242 people (2.3 X 540). For the subject request to meet the county's adopted level of service standard of 1.97 cubic yards/person/year, the landfill must have enough capacity to accommodate approximately 2,447 (1,242 X 1.97) cubic yards/year. A review of the solid waste capacity for the active segment of the county landfill indicates the availability of more than 800,000 cubic yards. The active segment of the landfill has a four year capacity, and the landfill has expansion capacity beyond 2010. Based on the analysis, staff determined that the county landfill can accommodate the additional solid waste generated by the site under the proposed land use designation. Drainage All developments are reviewed for compliance with county stormwater regulations which require on-site retention, preservation of floodplain storage and minimum finished floor elevations. In addition, development proposals must meet the discharge requirements of the county Stormwater Management Ordinance. The subject property is located within the M-3 Drainage Basin. Therefore, development on the site would be prohibited from discharging any runoff in excess of the pre - development rate. In this case, the minimum floor elevation level of service standards do not apply, since the property does not lie within a floodplain. However, both the on-site retention and discharge standards apply. With the most intense use of this site under the proposed amendment, the maximum area of impervious surface would be approximately 4,704,480 square feet, or 108 acres. The maximum runoff volume, based on that amount of impervious surface and the 25 year/24 hour design storm, would be approximately 4,956,181 cubic feet. In order to maintain the county's adopted level of service, the applicant would be required to retain approximately 1,638,725 cubic feet of runoff on- site. With the soil characteristics of the subject property, it is estimated that the pre -development runoff rate is 224 cubic feet/second. Based upon staffs analysis, the drainage level of service standards would be met by limiting off-site discharge to its pre -development rate of 224 cubic feet/second and requiring retention of the 1,638,725 cubic feet of runoff for the most intense use of the property. As with all development, a more detailed review will be conducted during the development approval process. November 7, 2000 79 BK 115 PG 786