The Sewerage Commission – Oroville Region (SC-OR) is a joint powers agency formed by the City of Oroville, Lake Oroville Public Utility District and the Thermalito Water and Sewer District. SC-OR operates a wastewater treatment plant and provides sewerage services for these three entities, serving a population of approximately 35,700. The design average dry weather flow capacity of the WWTP is 6.5 million gallons per day (mgd); though the WWTP can temporarily receive peak wet weather influent flows up to 26 mgd due to extensive I&I in the sewerage network.
Coleman Engineering is providing full construction management, resident engineer services and engineering services during construction for the new $7 million Primary Influent Pump Station No. 2 at the WWTP. New facilities include the new 17 mgd wet well structure, four submersible pumps and associated piping and valves; a bar screen structure; two large diversion boxes; a new electrical building to house electrical equipment; a new diesel engine generator; new flowmeter vaults; yard piping, new and modified electrical equipment; and site improvements.
December 5, 2020