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can accommodate the additional solid waste generated by the site under 'the proposed amendment. - 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 4,155,624 square feet, or 95.4 acres. The maximum runoff volume, based on that amount of impervious surface and the 25 year/24 hour design storm,would be approximately 4,356,000 cubic feet. In order to maintain the county's adopted level of service, the applicant would be required to retain approximately 217,800 cubic feet of runoff on-site. With the soil characteristics of the subject property, it is estimated that the pre -development runoff rate is 245 cubic feet/second. Based upon staff's analysis, the drainage level of service standards would be met by limiting off-site discharge to its pre - development rate of 245 cubic feet/second and requiring retention of the 217,800 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. - Recreation A review of county recreation facilities and the projected demand that would result from the most intense development that could occur on the property under the proposed amendment indicates that the adopted levels of service would be maintained. The table below illustrates the additional park demand associated with the proposed development of the property and the existing surplus acreage by park type. LOS Project (Acres per Demand Surplus Park Type 1000 population) Acres Acreage Urban District 5.0 5.48 206.154 Community (north) 3.0 3.29 24.715 Beach 1.5 1.65 72.246 River 1.5 1.65 33.243 Based on the analysis conducted, staff has determined that facilities for drainage, solid waste, water, wastewater, and recreation have adequate capacity to accommodate the most intense use of the subject property under the proposed land use designation. The execution of a developer's agreement -has ensured that adequate road capacity will also be available at the time of development. With the execution of the referenced developer's agreements for transportation and wastewater, the concurrency test has been satisfied for the subject request. APR 124.994 71 BOOK 9 � F, �F 1620