Resolution No. 4793 - Laserfiche WebLink

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6 DEVELOPMENTAND EVALUATION OF ALTERNATIVES provisions for a disinfection system that can meet the Level IV reuse requirements will provide Level IV effluent. Current planning efforts a~e to provide 10 mgd of reuse through the design period, through phased implementation. For perspective purposes, during the maximum crop uptake (liquid) months of July and August, an est/mated 620 acres of land is required for 2.5 mgd of reuse, based on applying the reuse to grass. If reuse were applied June through September, more acreage would be required because crop water uptake during the months of June and September is almost half of the peak uptake during the months of July and August. 6.4.1 Reuse g ternatives Five effluent reuse alternatives have been developed for the application of Level II and Level IV quality effluent. These alternatives are based on developing 10 mgd of reuse within the design period. Alternative 1 - Local Reuse Demonstration Site (keve~ IV) Alternative 1 represents an initial reuse demonstration project. This alternative would provide 0.5 to 1.0 mgd of Level IV effluent reuse to pubhc areas located within a two-mile radius of the WPCF. The demonstration project would most likely supply water to park vegetation and areas with high public visibility. Assuming the reuse water were applied on grass, approximately 125-250 acres would be required during an appl/cation period of July and August. This is based on providing a daffy reuse application rate of 0.5 to I mgd. Advantages: - Provides the ability to gage pUblic reaction and receive public response from the use of reclaimed water on public areas without fully developing a Level IV reuse program * Less restrictions associated with application of Level IV reuse as compared to Level II effluent - Level IV effluent can be applied on a greater variety of sites (e.g., golf courses) than Level II effluent Disadvantages: Level IV reuse is more costly to achieve than Level II Need to develop conveyance and distribution system Study required to evaluate all potential urban reuse sites Requires significant amount of land in proximity to WWTP Requires public awareness and education program This alternative would require the installation of a UV disinfection system capable of treating the desired quantity of Level W effluent; a conveyance pipeline; and a distribution system (i.e., laterals, sprinklers, etc.). The cost assumptions for this alternative are based on identifying land within 2 miles of the WPCF, a 1-mgd UV disinfection system, and leasing a transportable, pilot filtration unit. Estimated Cost: $2,100,000 Alternative 2 - Level !1 Reuse at the Seasonal Industrial Waste Facility (SIWF) Altemative 2 is to apply Level 11 reuse on the agricultural land available at the SIWF site, which is approximately 190 acres. A reclaimed water main (RWM) is currently connected MWMC_60_RE¥11.00C 627