Town of Discovery Bay 

Sanitary District staff will review the project plans to ensure there will be no adverse impacts on the sanitary sewer system and no encroachment into a sanitary sewer easement. It is the applicant’s responsibility to receive sanitary approval.

The following projects require Sanitary review:

• New residences, Accessory Dwelling Units (ADU’s) and commercial buildings.
• Any project that includes excavation work for a foundation or pier, or which upon completion would prevent access to sanitary sewer facilities for routine maintenance and repairs. Examples include new structures, demolitions, additions, pools, decks, outdoor kitchens, outdoor fireplaces, retaining walls, cabanas, ground mount solar systems, pergolas/trellises/pavilions/gazebos, and carports.
• Residential additions/remodels with new fixtures requiring new drains or new fixtures that will increase the rate of flow into an existing plumbing system served by a sewer or septic system. 
• All commercial tenant improvement projects will require sanitary approval whether or not plumbing is a part of the project.
• New or modifications to pools or spas.

How do I submit a plan for Sanitation District Approval? 

• Email the site plan to ccadmin@todb.ca.gov. If approved, the plan will be stamped electronically.
• Drop off plan in person at 1601 Discovery Bay Blvd, between the hours of 8:30am-3:00pm, Monday through Friday. Appointments are recommended. To schedule an appointment, please email ccadmin@todb.ca.gov or call (925) 302-6644.