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•�:J r�1Ut d �+ RESOLUTION NO. 98- 61 values provided by these preserve areas will be maintained. Via the site plan project development review and permitting process, the developer shall submit a plan establishing wetland control elevations and post -development drainage sub -areas for each wetland to St. Johns River Water Management District and Indian River County for approval. This plan may be included in the Preserve Area Management Plan. The plan shall demonstrate how sufficient quantities of surface runoff from portions of the developed areas will be conveyed to wetland areas in order to maintain or improve their exiting hydroperiod. 26. All elements of the stormwater management system shall be designed to prevent impacts to adjacent areas and to the receiving bodies of water. The developer shall prepare plans that reasonably demonstrate that these waterbodies and adjacent properties will not be negatively impacted by water quality, water quantity or timing of delivery. These plans shall be approved by St. Johns Water Management District and Indian River County prior to the construction of the surface water management system and prior to release of any project site plan. 27. To improve the quality of stormwater on-site, the streets and paved parking lots within the commercial areas shall be swept as necessary, but in no case less frequently than once per week. Sweeping shall be accomplished by vacuum type or vacuum regenerative type sweepers. Parking stops or bumps which may collect and concentrate contaminants, or which would interfere with efficient sweeping of paved parking areas, shall not be used outside the existing phase of the project. 28. During the site plan review process, the developer and Indian River County shall work together to minimize the amount of impervious surface constructed for the purposes of automobile parking on the Horizon Outlet Center site. The developer and the County shall consider the use of pervious parking lot materials where feasible and, in cooperation with the developer implementing an incremental parking lot construction program that initially reduces parking space/retail space ratios to a minimum with any increases tied to actual demonstrated demand. 29. Golf course management shall be addressed within the Preserve Area Management Plan (reference condition #18) prior to the construction of the golf course on the project site. The Preserve Area Management Plan shall provide details concerning the application of fertilizers, herbicides and pesticides on the golf course. The plan shall include methods for minimizing the impact of chemical runoff associated with golf course maintenance. 30. A vegetated littoral zone shall be established in the lake constructed on site. Prior to the expansion of the existing lake system, the developer shall prepare a design and management plan for the wetland/littoral zone that will be developed as part of that system. The plan may be incorporated into the Preserve Area Management Plan and shall be subject to approval by the St Johns River Water Management District, and Indian River County prior to beginning any excavation activity. Littoral zones shall be constructed concurrent with lake excavation and final grading. Operational permits for the surface water management system shall not be issued nor shall a certificate of occupancy for any firture portion of the project be issued until such time as littoral zones have been found to be constructed in conformance with approved plans. 31. Maintenance and management efforts required to assure the continued viability of preserved wetland habitats and the proper operation of all components of the surface water management system shall be the financial and physical responsibility of the developer. Any entities subsequently approved by Indian River County to replace the developer shall be required, at a minimum, to assume the responsibilities outlined above. 32. No building permits shall be issued for any subphase or phase of the Horizon Outlet Center development outside the existing development and the development approved under the PDA, until the developer has provided written confirmation from the St John's River Water Management District and the providing utility that adequate capacity of treated potable water and serviceldistribution infrastructure will exist by development of that subphase or phase. 33. The preferred source of irrigation water shall be treated wastewater effluent at such time as this source is made available at the site. Should treated wastewater be unavailable or a supplemental source of irrigate be needed , existing or created surface water (i.e. lakes or canals) shall be used to the maximum extent available. Project site plans shall show that the project's irrigation systems will be designed and installed in a manner that will allow utilization of reuse water, and connected to reuse water when it becomes available. 34. In order to reduce irrigation water demand, xeriscape landscaping shall be implemented throughout the project At a minimum, 50 percent of all areas requiring landscaping material shall be landscaped with native drought -tolerant adapted to soil and climatic conditions existing on site. Project site plans shall show compliance with this provision. JUNE 291998 0 -51—