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The Board reviewed a Memorandum of December 11, 1996: TO: James E. Chandler County Administrator D ION HEAD CONCURRENCE: Obert R. Keating, A C Community Development Director THROUGH: Stan Boling, AICP Planning Director FROM: John W. McCoy, AICP `JVJti%\ Senior Planner, Current Development DATE: December 11, 1996 SUBJECT: Continuation of the Department of Utility Services Request for Special Exception Use Approval to Expand the South County Wastewater Treatment Plant It is requested that the data herein presented be given formal consideration by the Board of County Commissioners at its regular meeting of December 17, 1996. DESCRIPTION AND CONDITIONS: At its December 3, 1996, meeting the Board of County Commissioners tabled the above referenced matter to its December 17, 1996 meeting. The Board also directed the applicant, Utility Services, to explore alternative designs that would result in partial or complete preservation of the oak hammock located in the northeast corner of the site. The site is located in Vero Beach Highlands at the northeast corner of 6th Avenue S.W. and 25th Street S.W. At its December 17th meeting, the Board is to consicger updated information on alternative designs and costs, continue the special exception use request public hearing, and take final action on the request. ANALYSIS: Since the December 3rd Board meeting, planning staff, utility services staff, and the project engineering consultant met to revisit and formulate various alternative design solutions which could conceptually meet county, state, and federal development regulations and preserve all or a portion of the oak hammock on the site. Utility Services and its consultant then estimated additional development costs, over and above the December 3rd proposed plan, for each alternative design. Utilities Services has identified 7 options, two of which involve using the December 3rd plan design and relocating oak trees to the Indian River Club site. The other 5 options involve varying degrees of treatment plant and site plan redesign to preserve all or portions of the oak hammock. The redesigns vary in scope from the relocation of several structures to changing the function of the site and constructing a new plant at a new location. The corresponding costs for various alternatives range from zero additional dollars to over $3,000,000 (see attachment #1). Planning staff has reviewed attachment #1,and it is planning staff's opinion that all of the alternative designs could meet the LDRs. At least one of the designs would require special cooperation of the Indian River Club to find compensatory cut for fill within the flood zone on the treatment plant site. The cut area would need to be guaranteed through some type of acceptable legal document executed by Indian River Club and the County. DECEMBER 17, 1996 90 C7