Permit and Resource Management Department Banner

New or Replacement Septic Permit Flowchart

This flowchart describes Permit Sonoma’s permit process for new or replacement septic systems.

Flowchart

I need a new/replacement septic system. What does the application process look like?

New Replacement Septic Permit Flowchart

Alternate Description of Flow Chart

  • You have confirmed you need a new/replacement permit
  • You then need to hire a consultant
  • The consultant will then do a site evaluation to assess the current septic system
  • After the site evaluation they will create a septic design plan for a new or replacement system
  • The site design will then be submitted to plan review to asses if the plan is ready to move forward
  • Was the septic design place approved?
    • If yes, the permit will be issued
    • If no, the application will need to be amended and re-submitted for plan review

Additional Information

New/ Replacement

  • Undeveloped vs. Developed
  • New systems and Replacement systems are equal for code requirements.

Qualified Consultant (QC)

  • Registered Environmental Health Specialist
  • Licensed Civil Engineer

Site Evaluation

  • Soil Type & Depth
  • Percolation Test
  • Separation to Groundwater

Septic Design

  • Site Evaluation Data
  • Flow Rate
  • Qualified Consultant will create a design

Application Review

  • Site Visit
  • Questions/Comments

OK?

Does Application Meet Standards?

  • Yes --Permit is Issued
  • No --Additional Info Needed

Contact Information

Contact Well & Septic by Phone
Address
2550 Ventura Avenue
Santa Rosa, CA 95403
38.465074, -122.723705

Sign Up for Updates

OWTS FAQs

View OWTS Frequently Asked Questions

frequently asked questions FAQ

Find answers to frequently asked questions (FAQs) related to the County’s septic system program and proposed updates to septic regulations.

Advanced Protection Management Plan

North Coast Regional Water Board’s Russian River Watershed Advanced Protection Management Plan interactive map.

Interactive Map

Well & Septic Permits

Get Information

Water Well

Find out about Well & Septic system permits and the Well & Septic section of Permit Sonoma.