Sewage is overflowing from a sewer structure onto the ground, driveway, street, etc. What should I do?
Overflow devices are usually located near the building. They may have lids or mushroom caps on top. Their purpose is to allow sewage from a plugged sewer to overflow outside of the building. Manhole structures are usually located in the middle of the street and provide access for cleaning and pipe inspection. CCCSD manhole structures are marked with “CCCSD” on top. Storm drains carry rain water only and are usually under curb openings in the gutters. They are usually covered with grates or slotted pieces of metal. Some solid round covers are marked with “S” or “Storm Drain.” Your city or the Contra Costa County Department of Public Works is responsible for problems with storm drains.
