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Mr. Jack Verderame L.� - 3 - S"01 10 March 2010 0 Effluent Wastewater Constituent Concentrations Constituent Units Average Maximum Minimum Coliform (TCO) MPN/100mL 49 2,400 2 EC umhos/cm 1,576 2,210 1,050 Turbidity NTU 4.7 42 0.9 Susp. Solids mL/L 0.1 0.1 0.1 BOD denotes Biochemical Oxygen Demand. TSS denotes Total Suspended Solids. TDS denotes Total Dissolved Solids. TCO denotes Total Coliform Organisms. EC denotes Electrical Conductivity. Susp. Solids denotes Suspended Solids. MPN/100mL denotes Most Probable Number per 100 mL. NTU denotes Nephelometric Turbidity Units. All data taken from the Revised July 2008 RWD, Table 3, Wastewater Treatment Wastewater is collected by gravity to an aerated lift station. Wastewater is screened and pumped to the treatment system, where it is treated with an intermittent cycle, extended aeration system equipped with clarification, multimedia filtration, and ozone disinfection. The treatment system is rated by the manufacturer to treat 50,000 gpd. Screenings are placed in a bin and disposed of at a sanitary landfill. Filter backwash water is returned to the treatment system. Sludge handling and disposal is described in the 27 January 2010 Sludge Disposal Plan prepared by HydroScience Operations, Inc. Sludge is removed from the clarifier and is discharged to one of two lined sludge disposal beds for drying. The dried sludge (greater than 20-percent solids) is disposed of at a permitted landfill. Interim Wastewater Discharge to Pond Treated wastewater will be temporarily discharged to an unlined golf course pond. The location of the pond is presented on Attachment B, which forms part of this notice by reference. To allow pond drying and rehabilitation, the discharge to the pond must cease by 2 August 2010. While discharging wastewater to the pond, the wastewater shall comply with California Code of Regulations Title 22, Section 60301.225 (disinfected secondary-23 recycled water), which states: "Disinfected secondary-23 recycled water"means recycled wafer that has been oxidized and disinfected so that the median concentration of total coliform bacteria in the disinfected effluent does not exceed a most probable number (MPN) of 23 per 900 milliliters utilizing the bacteriological results of the last seven days for which analyses have been completed, and the number of total coliform bacteria does not exceed an MPN of 240 per 900 milliliters in more than one sample in any 30 day period_ Public access to the pond has been limited by temporary fencing and signage that indicates non-potable water in the pond. The 8 February 2010 RWD Addendum included a water balance that showed adequate storage capacity in the pond to contain all the wastewater and precipitation for an average daily flow rate of 20,000 gpd.