Contact Us


Contact Us

Central San is headquartered in Martinez, CA. Please refer to the lists below for our contact information.

Central San District Offices and Treatment Plant
5019 Imhoff Place
Martinez, CA 94553
(925) 228-9500

Household Hazardous Waste Collection Facility
4797 Imhoff Place
Martinez, CA 94553
(800) 646-1431

Contact Phone Number Email
Sewer Spills (925) 933-0990  
Manhole Adjustments and Repairs (925) 933-0990  
Odors – Sewers or Treatment Plant (925) 335-7703  
Reporting Illegal Discharges or Spills into Sewer System (925) 229-7288 (during business hours)
(925) 229-7214 (after business hours)
Rodents & Insects
Contra Costa Mosquito & Vector Control District
(925) 685-9301  
Board of Directors
Katie Young, Secretary of the District (925) 229-7303  
Frequently Called Numbers
Main Line (925) 228-9500  
Community Information Line (925) 335-7702  
Media Inquiries (925) 378-0355  
Permits, Sewer Locations, and New Development Inquiries (925) 229-7371 Email
Human Resources, General Info (925) 229-7355 Email
Environmental Compliance (925) 229-7288  
District Fax Numbers
Collection System Operations Department (925) 938-2956  
Administrative Department (Office – 3rd Floor) (925) 676-7211  
Plant Operations Department (925) 689-1232  
Environmental Services/Permits (Office – 1st Floor) (925) 228-4624  
Capital Projects (Office – 2nd Floor) (925) 372-7892  
Source Control (Office) (925) 335-7746  
Materials Control Building (925) 370-6056  

ADA Policy is committed to making this website as accessible as possible to everyone. To this end, we continually strive to ensure the pages on this website meet or exceed the requirements of Section 508 of the Rehabilitation Act of 1973.



Information contained in the Central Contra Costa Sanitary District (“Central San” or “District”) web site is provided as a public service by Central San. In preparation of this site, we have made every effort to offer the most current, correct, and clearly expressed information as is possible. Changes are made periodically to this web site and may be made at any time without notice. Central San makes no claims, promises or guarantees about the accuracy, completeness, or adequacy of the content of the Central San web site.