Listed below are projects that are currently in progress. View recently completed projects.
For questions regarding active projects, please contact Mike West 707-524-1178 or mike.west@scwa.ca.gov
Ralphine Tank No. 1 Recoating
The Work consists of removal and replacement of the interior coating and exterior paint at Owner’s six-million-gallon Ralphine Tank No. 1, located at 5585 Newanga Avenue, Santa Rosa, California, within the publicly accessible Spring Lake regional park. The Work includes repairing corroded steel features with the tank; installing lateral bracing; preparing steel surfaces for interior coatings and exterior paint; minor earthwork and installation of perimeter french drain system; repair and replacement of tank vents and screening, modification of overflow pipe; manway, access hatch, and ladder improvements; replacing the fall restraint system; and installing approximately 2,100 linear feet of eight-foot security fencing and four vehicular access gates. The Work also includes new electrical service and power supply and relocation of electrical panels.
Date Started: July, 2026
Contract Amount: $3,971,410
Contractor: SoCal Pacific Construction dba National Coating and Lining, Fairfield, CA
Estimated Completion: March, 2027
Sonoma Valley County Sanitation District System Protection Plan at Kohler and Sonoma Creek Crossing
The Work consists of the construction of Owner’s Sonoma Valley County Sanitation District System Protection Plan at Kohler and Sonoma Creek Crossings located at 13965 Arnold Drive, Glen Ellen, California. The Work includes grading, installation of engineered streambed material rock slope protection, reconstruction of banks using biotechnical methods, installing concrete pipe encasements, placing and anchoring logs and rootwads for bank protection, stream diversion and dewatering, planting, and installation of an irrigation system.
Date Started: June, 2026
Contract Amount: $1,656,447
Contractor: Passenger Construction Corporation, Fort Bragg, CA
Estimated Completion: January, 2027
Sonoma Valley County Sanitation District Sewer Trunk Main Replacement Ph 5B
The Work consists of construction of the sewer trunk main replacement phase 5B Johnson Avenue extension located between the intersection of Lichtenberg Avenue and Johnson Avenue and the terminus of Johnson Avenue in an unincorporated area of Boyes Hot Springs, California. The Work includes the installation of approximately 562 feet of new 24-inch diameter trunk sewer and associated manholes and connections to existing sewer trunk lines. The Work also includes approximately 2,160 square yards of asphalt paving.
Date Started: July, 2026
Contract Amount: $1,253,967
Contractor: Argonaut Constructors, Inc., Santa Rosa, CA
Estimated Completion: November, 2026
Wilfred Booster Station
The Work consists of construction of Owner’s Wilfred Booster Station Resiliency project located at 4980 Commerce Boulevard, Rohnert Park, California. The Work includes demolition of the existing medium voltage switchgear and installation of Owner-furnished medium voltage switchgear; demolition and replacement of the existing booster pump with a new booster pump; installation of a secondary booster pump and associated valves and piping to provide redundancy; and upgrades to the control system for operating the facility.
Date Started: April, 2026
Contract Amount: $6,809,340
Contractor: Myers & Sons Construction, Sacramento
Estimated Completion: June, 2027
Santa Rosa Russian River-Cotati Intertie AQ Cathodic Protection Upgrade Phase 1
The Work consists of construction Owner's cathodic protection upgrades located in Sonoma County at multiple locations along the alignment of Owner’s Santa Rosa and Russian River-Cotati aqueducts. The project includes the installation of 9 cathodic protection stations, each consisting of a dc rectifier unit and a deep anode bed, and 12 cathodic protection test stations.
Date Started: September, 2025
Contract Amount: $2,178,582
Contractor: Exaro Technologies Corporation, Burlingame, CA
Estimated Completion: May, 2026
Russian River Main Lift Aboveground Diesel Fuel Tank
The Work consists of removal of Owner’s Main Lift diesel fuel tank and construction of a new aboveground diesel fuel tank located at 17490 Highway 116, Guerneville, California. The Work includes the removal and disposal of the existing diesel underground storage tank and construction of an aboveground diesel storage tank. The Project also includes diesel piping improvements, monitoring system, electrical improvements, and general site improvements.
Date Started: May, 2025
Contract Amount: $529,676
Contractor: Summit Signal, Inc., Willits, CA
Estimated Completion: January, 2026
Cotati Tank No. 3 Recoat
The Work consists of recoating Cotati Tank No. 3 located at 1380 West Sierra Avenue, near the City of Cotati. The Work includes repairing corroded structural steel features within the tank, installing lateral bracing, applying protective coating to tank interior, painting tank exterior, installing new cathodic protection system for long term corrosion prevention, expanding a concrete foundation, and other miscellaneous improvements.
Date Started: February, 2025
Contract Amount: $6,962,100
Contractor: Viking Industrial, La Vista, NE
Estimated Completion: February, 2026
SVCSD Treatment Plant Influent Effluent Pumping and Piping Upgrade
The Work consists of the replacement of the eight existing influent and effluent pumps housed in the existing building basement of the Sonoma Valley County Sanitation District’s Treatment Plant Influent/Effluent building, all exposed influent suction and discharge piping, valves, flow meters and associated electrical and control equipment located at 22675 8th Street East in Sonoma, California. The Work includes the demolition of all existing pumps, piping, electrical and control equipment within the building; installation of five new 85 horsepower dry pit submersible influent pumps and associated piping and valves within the existing building basement; construction of a new exterior effluent pump station adjacent to the building with three 250 horsepower vertical turbine pumps in sub-grade pump cans with associated piping and valves; installation of two slide gates in the existing exterior headworks channels; modifications to the existing exterior influent and effluent wet wells; installation of eight variable frequency drives (VFDs) and back-up reduced-voltage soft starters (RVSS) in the building; installation of a programmable logic controller (PLC) and associated equipment; plc programming and supervisory control and data acquisition (SCADA) integration to control the new equipment; and associated civil site work adjacent to the building.
Date Started: August, 2024
Contract Amount: $10,658,200
Contractor: W.M. Lyles & Co., Rockin, CA
Estimated Completion: June, 2027
Ely Booster Station Hazard Mitigation
The Work consists of construction of Owner’s Ely Booster Station Hazard Mitigation located on Ely Road North in an unincorporated area of Petaluma. The Work includes demolishing and replacing existing structures and appurtenances, including the switchgear, pump motor housing structure, valve actuators, and anchoring equipment, and elevating and sealing the electrical and mechanical appurtenances, including the existing generator, above the 500-year floodplain.
Date Started: June, 2022
Contract Amount: $2,666,666
Contractor: Royal Electric Company, Sacramento, CA
Estimated Completion: November, 2025