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BOOK 89 PAGE23 - <br />In this case, the minimum floor elevation level of service standard <br />applies, since the property lies within a floodplain. Consistent <br />with Drainage Policy 1.2, "all new buildings shall have the lowest <br />habitable floor elevation no lower than the elevation of the 100 - <br />year flood elevation as shown on the Federal Emergency Management <br />Agency's Flood Insurance Rate Map, or as defined in a more detailed <br />study report." Since the subject property lies within Flood Zone <br />AE, which is a special flood hazard area located within the 100 - <br />year floodplain, any development on this property must have a <br />minimum finished floor elevation of no less than 9 feet above mean <br />sea level. <br />Besides the minimum elevation requirement, on-site retention and <br />discharge standards also apply to this request. With the most <br />intense use of this site, the maximum area of impervious surface <br />under the proposed zoning classification will be approximately <br />104,544 square feet, or 2.4 acres. The maximum runoff volume, <br />based on that amount of impervious surface and the 25 year/24 hour <br />design storm, will be approximately 101,059 cubic feet. In order <br />to maintain'the county's adopted level of. service, the applicant <br />will be required to retain approximately 28,314 cubic feet of <br />runoff on-site. With the soil characteristics of the subject <br />property, it is estimated that the pre-development'runoff rate is <br />it cubic feet/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 11 cubic feet/second, requiring retention of <br />28,314 cubic feet of runoff for the most intense use of the <br />property, and requiring that all finished floor elevations exceed <br />9 feet above mean sea level. <br />As with all development, a more detailed review will be conducted <br />during the development approval process. <br />- Recreation <br />A review of county recreation facilities and the projected demand <br />that would result from the most intense development that could <br />occur on the property under the proposed zoning district indicates <br />that the adopted levels of service would be maintained. The table <br />below illustrates the additional park demand associated with the <br />proposed development of the property and the existing surplus <br />acreage by park type. <br />Based upon the analysis conducted, staff has determined that all <br />concurrency -mandated facilities, including drainage, roads, solid <br />waste, recreation, water, and wastewater have adequate capacity to <br />accommodate the most intense use of the subject property under the <br />proposed zoning. Therefore, the concurrency test has been <br />satisfied for the subject request. <br />30 <br />LOS <br />Project <br />(Acres per <br />Demand <br />Surplus <br />Park Type <br />1000 populations <br />Acres <br />Acreage <br />Urban District <br />5.0 <br />0.240 <br />211.477 <br />Community (north) <br />3.0 <br />0.144 <br />25.746 <br />Beach <br />1.5 <br />0.072 <br />73.843 <br />River <br />1.5 <br />0.072 <br />34.840 <br />Based upon the analysis conducted, staff has determined that all <br />concurrency -mandated facilities, including drainage, roads, solid <br />waste, recreation, water, and wastewater have adequate capacity to <br />accommodate the most intense use of the subject property under the <br />proposed zoning. Therefore, the concurrency test has been <br />satisfied for the subject request. <br />30 <br />