Land Use Program
Applications
- Site and Soil Application
- Septic System Permit Application
- Application to Construct an Alternative Sewage Disposal System
- Well Permit Application
- Soil Borings
- Sewage Pumping/Hauling Permit Application
General Information And Handouts
General
- Well and Septic System Real Estate Transaction Inspections
- How to Apply for a Rezone, Use Permit or Land Division
- How to Apply for a Building Permit on Lots Served by Septic Systems
Onsite Wastewater Disposal System
- Percolation Test Policy
- Septic Systems in Contra Costa County
- Septic Systems Installation Checklist
- Soil Evaluation for On-Site Wastewater Disposal
- Septic Tank Destruction Requirements
- Septic System Permit Process
- Onsite Wastewater Services - Contractors and Consultants
- Operation and Maintenance Service Providers
Moratorium Areas and Watershed Areas
Environmental and Geotechnical Wells and Soil Borings
- Dewatering Wells Guidelines
- Well Destruction Guidelines
- Environmental and Geotechnical Wells and Soil Borings
- The Well Permit Process
- Well Slab Construction
- Annular Seal and Well Destruction Materials
- Approved Driller List - as of 10/2012
Pumper Trucks
Laws and Regulations
Onsite Wastewater Disposal System and Pumper Trucks
Water Wells
Forms
Environmental and Geotechnical Wells and Soil Borings
- Performance Bond Information
- Site Health and Safety Plan
- Request for Variance
- Authorization of Agent Form
Onsite Wastewater Treatment System
- Alternative Septic System Approval Packet
Pumper Trucks
Frequently Asked Questions
If you have a question involving this program, please check our Land Use FAQs section.
Helpful Links
- FEMA flood plain maps
- Groundwater Studies (United States Geological Survey Website)
- State Water Resources Control Board for environmental data for regulated facilities in California
- Watershed Atlas
- California Contractor's License Board
- New Statewide Septic Regulations
* 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.