6/22/1993 - Laserfiche WebLink

Home Browse Search

80 OK 89 FVF JUW 22 1993 11. 8 78 Residential development of 360 units on the portion of the subject property lying in the central county wastewater service area will have a wastewater generation rate of 360 Equivalent Residential Units (ERU), or 90,000 gallons/day. This is based upon the level of service standard of 250 gallons/ERU/day. The Central County Wastewater Plant has a remaining capacity of approximately 500,000 gallons/day and can accommodate the additional demand generated by the proposed amendment. Residential development of 2360 units on the portion of the subject property lying in the west county wastewater service area will have a wastewater generation rate of 2360 Equivalent Residential Units (ERU), or 590,000 gallons/day. This is based upon the level of service standard of 250 gallons/ERU/day. The West County Wastewater Plant's remaining capacity is approximately 490,,000 gallons/day, which is less than the additional demand generated by the proposed amendment. However, as indicated in Table 3.A.12. "Recommended Wastewater System Improvements" of the Sanitary Sewer Sub -Element, the county has programmed and budgeted for expansion of the West County Wastewater Plant. Construction to expand the capacity of this facility to accommodate an additional 1,000,000 gallons/day will begin when the facility is at 65% of its capacity, as mandated in Sanitary Sewer Sub -Element Policy 5.3. For this reason, the West County Wastewater Plant will be capable of accommodating the additional demand generated by the proposed amendment. - Solid Waste Solid waste service includes pick-up by private operators and disposal at the county landfill. For 3200 residential units, solid waste generation will be approximately 5120 waste generation units (WGU) or 15,168 cubic yards of solid waste/year. A WGU is a Waste Generation Unit measurement equivalent to 2.9625 cubic yards of waste/year. According to the county's solid waste regulations, each residential unit generates 1.6 WGU/unit. With the county's adopted level of service standard of 2.37 cubic yards/person/year and the county's average of two persons/unit, each WGU is equivalent to 1.25 people (2/1.6 = 1.25) and 2.9625 cubic yards of solid waste/year (1.25 X 2.37). To calculate the total cubic yards of solid waste for the most intense use allowed on the subject property under the proposed land use amendment, staff utilized the following formula: Total number of WGU's X 1.25 X 2.37 (5120 X 1.25 X 2.37 = 15,168 cubic yards/year). A review of the solid waste capacity for the active segment of the county landfill indicates the availability of more than 900,000 cubic yards. The active segment of the landfill has a 3 year capacity,, and the landfill has expansion capacity beyond 2010. Based on staff analysis,, it was determined that the county landfill can accommodate the additional solid waste generated by the proposed amendment. - Drainage During the development approval process,, all developments are reviewed for compliance with county stormwater regulations which require on-site retention, preservation of floodplain storage and minimum finished floor elevations. In addition, development proposals must meet the discharge requirements of the county Stormwater Management ordinance. Any development on the subject property will be prohibited from discharging any runoff in excess of the pre -development rate. For these reasons, drainage Level of Service will not be lowered by the proposed amendment. 14