Land Use Program

Complaint Process

The Environmental Health Division will respond to complaints of sewage on private property or originating from private property and complaints associated with septic system failure. This Division will also respond to complaints of improper or illegal septic system installation or drilling activity. Permits are required by this Division prior to the construction or destruction of any domestic or environmental well or septic system.

- File a Complaint

Land Use Applications are not available on this website. They must be filled out at our office at 2120 Diamond Boulevard, suite 200, Concord, California.

Hazardous Materials Waste Complaints

For complaints regarding the improper handling or disposal of hazardous substances, contact the Hazardous Materials Program at 925-646-2286. For Emergency Response, dial 911.

Code Enforcement

Dog droppings, plumbing problems in the structure, garbage inside a residential or multiple dwelling, all multiple dwelling complaints, etc. County Code Enforcement includes unincorporated areas of Contra Costa County.

Public Works

For complaints regarding storm drain overflow or illegal discharge to a storm drain in unincorporated areas, contact Contra Costa County Public Works Maintenance Department 925-313-7000. For complaints within City boundaries, contact that city's Public Works Department.

Sanitary Districts

For complaints regarding a leak or discharge from a sewer main, contact your local sanitary district.

State Regional Water Quality Control Board

For complaints regarding discharge from any sanitation district, contact:

East of Antioch (Central Valley Region): 916-255-3000
West of Antioch (San Francisco Bay Region): 510-622-2300 and after 5 p.m. - 1-800-852-7550

Handouts

- Choose a form or handout to download:*

Well and Septic System Real Estate Transaction Inspections (38k PDF, 7pp.)
How to Apply for a Rezone, Use Permit or Land Division (28k PDF, 3pp.)
How to Apply for a Building Permit on Lots Served by Septic Systems (23k PDF, 2pp.)
The Septic System Permit Process (27k PDF, 2pp.)
Septic Systems in Contra Costa County (23k PDF, 1p.)
Septic Systems Installation Checklist (41k PDF, 1p.)
Requirements for Septic Tank Pumpers and Chemical Toilet Operators (28k PDF, 4pp.)
Disinfection Procedure for Water Wells (25k PDF, 2pp.)
Well Destruction Guidelines (20k PDF, 1p.)
Environmental and Geotechnical Wells and Soil Borings (22k PDF, 2pp.)
The Well Permit Process (23k PDF, 2pp.)
Well Slab Construction (44k PDF, 3pp.)
Nitrate Fact Sheet (24k PDF, 2pp.)
Soil Evaluation for On-Site Wastewater Disposal (69k PDF, 4pp.)

* Note: to view and print these forms you will need Adobe Acrobat Reader. You can also request these forms or applications that are not posted here by sending us an email request or by calling 925-692-2500.

- Fee Schedule

Frequently Asked Questions

If you have a question involving this program, please check our Land Use FAQs section.

Content provided by Contra Costa Health Services, Environmental Health Division.