Laserfiche WebLink
<br />6/02/2025 <br />Existing Conditions Report <br />Castlewood County Service Area (CCSA) <br /> <br />7 <br /> <br />4. Sewer M&O and Capital Improvements <br />Collection System <br />The CCSA sewer system consists of “5.3 miles of gravity sewer pipeline segments, 116 manholes and cleanouts, 0.8 <br />miles of force mains, and one pump station.”6 Property owners are responsible for laterals from their residence to <br />the property line. <br />The sewer system serves approximately 215 residential units and a single commercial service connection from the <br />Castlewood Country Club discharging an equivalent of 41 residential units of sewage.7 A small number of lots are on <br />septic systems.8 <br />Sewer Treatment <br />All wastewater is conveyed to the Dublin-San Ramon Services District (DSRSD) for ultimate treatment and disposal <br />through the West Pleasanton Interceptor sewer. <br />CCSA purchased treatment capacity for 308 RDEs, of which 247 RDEs have been purchased and connected. Nine of <br />the remaining 61 RDEs have been purchased but not connected; the unpurchased 52 RDEs represent capacity <br />available for purchase.9 <br />Services provided by the CCSA (ACPWA) include routine maintenance of the sewerage pump station, emergency <br />sewerage system repairs, field inspections, monitoring sewerage capacity and related sewerage system data.10 <br />The City of Pleasanton maintains the pump station under contract with the CSA. <br />Maintenance of the rest of the sewerage system is contracted to Bracewell Engineering.11 <br />Sanitary Sewer Overflows (SSOs) <br />No SSOs were reported from 2020 through 2025.12 <br /> <br /> <br />6 Sanitary Sewer Management Plan (SSMP), Castlewood County Service Area R-1967-1. Alameda County Public Works Agency in <br />consultation with Causey Consulting. May 2023. <br />7 2023 Sewer Management Plan. <br />8 The 2012 CCSA MSR noted five septic systems. <br />9 Annual Report, Fiscal Year 2023-2024, Castlewood County Service Area, 5/2/2023. (FY24 CCSD Annual Report) <br />10 FY24 CCSD Annual Report. <br />11 County of Alameda Standard Services Agreement, Procurement Contract No. 26793, July 1, 2024 – June 30, 2029. <br />12 Spill Public Report, State Water Resources Control Board, 1/1/2020 – 3/1/2025. See: “Castlewood CS” <br />https://www.waterboards.ca.gov/water_issues/programs/ciwqs/publicreports.html#sso