Self-Monitoring Form INSTRUCTIONS
Additional EHS Septic System Information
EHS General Information Handouts related to County building permits:
Residential Graywater Systems
Clothes washer systems and simple systems are exempt from construction permits. One change from the CPC is that only a notification will be required for simple graywater systems. A construction permit and plans will be required for complex systems. For graywater systems where the plumbing will be altered or back flow prevention valves are needed, a plumbing permit from the Building and Safety Division may be required.
Please see the Simple Graywater System Notification Form. Complete and return to EHS if applicable.
The California Plumbing Code (CPC), Chapter 16A, Nonpotable Water Reuse Systems can be found by clicking here.
Effective August 22, 2011, EHS will oversee residential graywater systems in unincorporated Marin County and some cities. The basis of the program will be the graywater regulations in the California Plumbing Code (CPC), Chapter 16A, Nonpotable Water Reuse Systems. The CPC defines three types of residential graywater systems: clothes washer systems; simple systems; complex systems.