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development proposals will have to meet discharge requirements of the County Stormwater Management Ordinance. Any development will be required to maintain its pre-existing discharge rate for the design storm. -Based on staff analysis of the utilities system, the density adjustment in this portion of the county is justified. This amendment will not only balance a density increase with a density reduction; it will actually reduce the overall number of units which could be built under the terms of the adopted plan by 560 units. - Impact on the Surrounding Areas In the 1982 Comprehensive Plan, this portion of the County was designated as low density residential, LD -1 (up to 3 units per acre). In the adopted 1990 comprehensive plan, the County changed this area's land use designation to 6 units per acre east of 43rd Avenue and -1 unit per acre west of 43rd Avenue. The Compliance agreement, however, will 'reduce the density of the area to the west of 43rd Avanue to 1 unit per 5 acres. Compatibility is not a major concern for this land use density adjustment, since this area is characterized predominately by agricultural uses, particularly citrus groves. A close examination of the groves in this area, however, shows that they are older groves, in poor condition, with limited production ability. In the near future these groves would have to be replanted with new trees or be converted to other uses. This land use density change and Urban Service Area adjustment will provide a transitional land use designation between the density of six (6) units per acre east of 43rd Avenue and 1 unit per five (5) acres west of 43rd Avenue. It has been the county's policy to provide for a gradual density change on the land use map to provide for more compatible developments, and better planned land use designation. Because the property being proposed for redesignation is located adjacent to the Indian River County/St. Lucie County boundary, the - compatibility of the proposed density change with uses in St. Lucie County must be considered. According to the St. Lucie County Comprehensive Plan, the adjacent lands in St. Lucie County are designated as residential with a density of 2 units per acre. It is staff's position that a density of 3 units per acre for this area of Indian River County will be more compatible with the density of land in St. Lucie County than will the 1 unit per five acres as reflected in the compliance agreement Future Land Use Map. - Future Development Potential This land use change will decrease the overall number of residential units which could be built in the county under the comprehensive plan because the density decrease east of 43rd Avenue involves a- larger area than the density increase west of 43rd Avenue. As indicated in attachment "B", this amendment involves a density decrease on 400 acres of land included in the flood plain area east of 43rd Avenue and a density increase in 240 acres of land west of 43rd Avenue. These modifications will reduce the county's residential allocation ratio, which is the relationship between the number of dwelling units allowed by the future land use map to dwelling units projected to be needed through the planning horizon.(1990-2010). Staff review -of the comprehensive plan policies indicate that this amendment is consistent with the land use objectives and policies of the future land use element of the comprehensive plan. This amendment is also consistent with other policies of the comprehensive plan. 63 BOOK 6 J