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transmission line construction expensive than the actual plant County's assessed water impact plant capacity expansion cost costs, the County must rely on the remaining uncovered costs. BOOK 95 PAGE .1.25 which are substantially more construction cost. While the fee of $10750.00 may cover the and a portion of the related other revenue sources to fund Sewer Each new housing unit requires 250 gallons of wastewater treatment per day (gpd). For every 1000 housing units connected to a wastewater treatment plant, 250,000 gpd of wastewater treatment plant capacity will be required to serve the units. Wastewater treatment plants handle wastewater at a millions -of -gallons -of -wastewater -per -day rate (mgd). For a 1 mgd wastewater treatment plant, 1000 households would use 25% of the plant's capacity. To accommodate and connect the new units, the County must construct additional treatment capacity to replace the capacity to be used by the connected units. It costs the County approximately $2.75 per gpd capacity to construct or expand a wastewater treatment plant. This County construction cost equals approximately $687.50 per household. However, it is more effective for the County to expand wastewater treatment plants in capacity increments of 0.5 mgd. Furthermore, as with water treatment plant improvements, the cited expansion cost is limited solely to plant construction. ' The cost does not include related construction costs such as property acquisition,•force main and pumping station construction, or effluent disposal facilities which are substantially more expensive than the plant construction cost. While the County's assessed sewer impact fee of $2,551.00 may cover the plant capacity expansion cost and a substantial portion of the related costs, the County must rely on other revenue sources to fund the remaining uncovered costs. With respect to water and sewer facilities, it is not just new growth that creates demand. As an area grows and densities - increase due to in -fill development or redevelopment, *he Anna t^ unable to safely accommodate the use of on-site well and septic facilities. Consequently, new water and sewer plants and related facilities must be built to accommodate the demand of existing units abandoning wells and septic tanks to connect to centralized public facilities. Facility Costs Growth creates the need to expand facilities and, thereby, creates a cost. There are, however, two other general types of costs associated with public facilities: general operating/maintenance costs and replacement costs. General operating costs cannot be funded with impact fees. These costs must be funded through the community's general budget or through the rates charged to customers using the facilities. Replacement costs must be funded in the same manner as general maintenance costs. • Impact Fees and the Local Community Indian River County, through its regulations and Comprehensive Plan, has effectively established a local policy that the existing community must not bear the sole burden of expanding public facilities to meet the demands of new growth. With this policy that growth must pay for itself, the County assesses the following types of impact fees for development: 1. Transportation _Impact Fee (TIF) 2. Water Impact Fee 3. Sewer Impact Fee 16 MAY 189 1995