Cities and towns (requirements may differ)
Summary of Specific Requirements For Gravity Systems
for Single Family Dwellings*
The following is in addition to the items listed on the FAQ page for Gravity System Requirements.
The county follows the Uniform Building Code, with the following exceptions:
Replacement Area, Residential: 100% (Commercial: 300%)
Maximum Slope: 30%
Vertical Separation: 5' to water table
3' for lots 10 ac. or more (on approval)
6" to temporary perched water table
2' to factured rock & rapid soil
Septic tank capacity: 1200 gal. for 1-4 bedrooms
1500 gal. for 5-6 bedrooms
Perennial Stream: one that flows all year.
Intermittent Stream: one that is not perennial, but flows more than 2 months a year.
Ephemeral Stream: one that is not intermittent, but flows immediately after a storm.
Tehama County Setback Requirements
For a graphical representation of
Tehama County setback requirements:
*The information on this page is a summary for quick reference only and may not represent the latest standards. For complete and up-to-date information, see each counties official website.
Links to Tehama County Website
For County home page:
For County's Rules for
On-Site Sewage Disposal: