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Development on the subject property would be served by the North County Reverse Osmosis Plant, which currently has a remaining capacity of more than 11500,000 gallons/day and can accommodate the additional demand generated by the proposed land use amendment. 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 426 Equivalent Residential Units (ERU), or 106,500 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 184,600 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 426 units would be anticipated to house approximately 980 people (2.3 X 426). 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 1,930 (980 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. Stormwater Management 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. For that reason, development of this site would not increase downstream flooding for a 25 year/24 hour design storm. Although the minimum floor elevation level of service standards do not apply (because the property does not tie within a floodplain), 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 3,711,312 square feet, or 852 acres. The maximum runoff volume, based on that amount of impervious surface and the 25 year/24 hour design storm, would be approximately 3,909,876 cubic feet. In order to maintain the county's adopted level of service, the applicant would be required to retain approximately 1,299,373 cubic feet of runoff on-site. With the soil characteristics of the subject property, it is estimated that the peak pre -development runoff rate is 176.2 cubic feet/second. November 13, 2001 31