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drained", and in its unaltered state the soil has severe limitations for septic suitability. However, even with its limitations, local SCS soils scientists identify Electra sand as one of the better soils in Indian River County for septic tank absorptions fields and indicate that all of its limitations can be overcome. Adequate amounts of suitable fill material would increase the effective depth to the water table and the restrictive layer and provide needed filtration. The risk of filtration problems can be reduced by maintaining maximum setbacks from the river and associated wetlands, and Ph can be raised in the immediate area of a septic tank to prevent corrosion to the concrete* The Solid Waste Sub -Element of the Comprehensive Plan substantially describes and analyzes hazardous waste management practices in Indian River County: The following points are summarized: ° The County Utilities Department presently has limited storage facilities at the county landfill for residentially generated hazardous waste. This facility does not accept such waste from small quantity commercial or industrial generators* Small quantity generators presently must contract with private hazardous waste haulers for the disposal of waste materials. A future expansion of the storage facility at the landfill for temporary storage of hazardous materials is proposed. ° There is apathy or ignorance regarding the impacts of improper hazardous waste disposal or illegal dumping in Indian River County, in that illegal dumping continues to be a problem. A program to educate the public concerning the economic and environmental impacts of such activities could help to address this matter. Also, an increase in the consequences of illegal dumping (i.e., fine penalties) may help to deter such problems. POLICY 6.16: The county shall protect the large undisturbed upland and xeric scrub community abutting the environmentally sensitive St. Sebastian River. Development in that area shall be consistent with future land use element policy 1.5 densities and clustered to preserve significant and connected expanses of viable xeric scrub habitat . Recognizing the undisturbed scenic and natural qualities of the river, any permitted residential development shall maintain a 100 -foot natural buffer consisting of undisturbed native vegetation measured from the mean high water mark of the river or 50 feet from the landward boundary of jurisdictional wetlands along the river or any tributary, whichever is greater. The design of any residential development shall restrict boat access to the river consistent with federal, state and local laws and regulations providing for the protection of manatees. To further protect manatees, only non -motorized boats will be allowed in association with development on the west side of the St. Sebastian River. Because of the importance of the community as an intact natural system, areas designated as set -asides must contain ecologically adequate habitat to maintain and preserve the natural functions and character of this community. No off-site mitigation for such area shall be permitted. The county shall encourage the conservation of this xeric scrub community by establishing density transfer and cluster development land use regulations to limit the impact of development on this property. Appropriate infrastructure such as central sewer service and surface water management systems may be required for the protection of the St. Sebastian River ecosystem. In addition, the following criteria must be met: ° Prior to the submittal of any plan of development, the site shall be surveyed by a qualified biologist or ecologist for the presence of plant and animal species listed as endangered, threatened or as species of special concern by the U.S. Fish and Wildlife Service, Florida Game and Fresh Water Fish Commission, or the Florida Department of Agriculture. The survey methodology shall be one