Listed below are projects that are currently in progress. View recently completed projects.
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
Sonoma Valley County Sanitation District Roof Replacement
The Work consists of removing the existing roof systems of the administration and maintenance buildings and installing new membrane roof systems on each building, located at 22675 8th Street East, Sonoma, California.
Date Started: July, 2025
Contract Amount: $301,068
Contractor: Diablo Roofing, Oakland, CA
Advanced Quantitative Precipitation Information C-Band Radar at Mt. Barnabe
The Work consists of installation of a weather radar system located near Dickson Fire Lookout in an unincorporated area of Marin County. The Work includes installation of a weather radar and corresponding power source, electrical instrumentation and controls, and standby power system. The work also includes grading, trenching, and construction of concrete foundation.
Date Started: July, 2025
Contract Amount: $515,860
Contractor: Ghilotti Construction Company, Santa Rosa, CA
Occidental Road Well Activation
The Work consists of construction of improvements to the Santa Rosa Plain Water Resiliency Project - Occidental Road Well Activation located at 5610 Occidental Road, Santa Rosa, California. The Work includes Site demolition and providing concrete pads; well station piping, fittings, and supports; 1 aquifer recharge valve; 1 well pedestal; 1 above-ground sand separator and 1 downhole sand separator; 1 submersible well pump including Variable Frequency Drive (VFD) and pump column piping; 2 fiberglass buildings; chlorination system including chemical dosing system; pump to waste system; control valves; manual valves; meters; instrumentation; and related mechanical, electrical, and controls equipment, including system integration and commissioning modes of operation for long-term operation of the well.
Date Started: May, 2025
Contract Amount: $4,797,811
Contractor: Terracon Constructors, Inc. Healdsburg, CA
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
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
Santa Rosa Plain Water Supply Sebastopol Road Well Activation
The Work consists of construction of improvements to the Sebastopol Road well located at 5590 Sebastopol Road, Santa Rosa, California. The Work includes installation of the following items: aquifer recharge valve; approximately 300 linear feet of 12-inch diameter ductile piping; refurbished vertical turbine well pump and pump column piping; fiberglass buildings; chemical dosing systems; pump to waste systems; control valves; instrumentation; and related mechanical, electrical, and controls equipment, including integrating and commissioning modes of operation for long-term operation of the well.
Date Started: April, 2024
Contract Amount: $3,102,798
Contractor: TerraCon Constructors, Inc., Healdsburg, CA
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