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The City of Concord provides wastewater collection services to the cities of Concord and Clayton and some parcels in unincorporated areas of Contra Costa County.
Concord's wastewater collection system conveys wastewater to the Central Contra Costa Sanitary District's wastewater treatment plant. Sanitary sewer charges are assessed annually by the City and placed on property tax bills.
For information regarding charges for sanitary sewer service contact the Public Works Department Monday to Friday, 7:30 a.m. to 3:30 p.m, at 925-671-3448.