11/2/1993 - Laserfiche WebLink

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r � � Executive Summary - BROWN AND C A L D W E L L WASTEWATER TREATMENT PLANT EXPANSION Wastewater generated in the South Region is currently conveyed to the City of Vero Beach WWTP where it is treated and disposed. Previous plans called for diversion of wastewater from the City of Vero Beach WWTP to a proposed South Region WWTP to be located near Oslo Road. With the purchase of the GDU system, it is recommended that wastewater flows be diverted to the 0.85 MGD GDU WWTP and that the GDU WWTP be upgraded and expanded as required to treat all South Region wastewater flows to reuse standards. This recommendation is made based on the following factors: • Additional Staff Requirements - If a second WWTP were constructed, the County would have to add operators for 24-hour staffing of the new facility to meet regulations for producing reuse level effluent. • Operations and Maintenance Costs - Addition of a second facility would substantially increase operations and maintenance costs. • Regulatory Compliance - Compliance monitoring and reporting costs would double. • Available Capacity - The GDU WWTP currently has about 400,000 gpd of available capacity. This available capacity would allow diversion of wastewater flows from the City of Vero Beach. Current wastewater treatment capacity allocations with the City .of Vero Beach are not adequate to treat the additional 100,000 gpd of wastewater flows expected from the Oslo Road area in the near future. The GDU WWTP would provide the additional capacity required to meet these needs. Three expansions have been identified to serve the growth within the expanded South Region service area. The expansions are planned to provide additional capacity by the year 1995 (1.15 MGD expansion -- total capacity 2.0 MGD), 2000 (1.0 MGD expansion -- total capacity 3.0 MGD), and 2003 (1.0 MGD expansion -- total capacity 4.0 MGD). The 1995 expansion is planned to coincide with growth of the service area and adding additional service area. Vista Royale and Vista Garden WWTPs are assumed to come off line in 1997. At this time flow will be diverted to the*South Region WWTP located on the GDU site. The estimated cost of the proposed expansions to the GDU South Region WWTP, through the 2010 master planning period, are $10,800,000 as compared to expansion costs of $13,200,000 for the previously proposed South Region WWTP as identified in the adopted Master Plan. By the County using and expanding the GDU facility rather and building the proposed South Regional WWTP north of Oslo Road the net reduction in capital cost is approximately $2,400,000. W.7763%RIP0R7jDcBCSUMM ES -5 Novmba 1993 41 RooK OV _ 2 199