California Water Code was amended in 2012 to establish a statewide, approach for the regulation and management of On-Site Wastewater Treatment System (OWTS), commonly known as septic systems. Environmental Health is the local permitting authority that ensures compliance with all applicable state and local regulatory requirements for the installation and repair of OWTS. Learn more, view the Butte County Wastewater Ordinance.

Wastewater Manual

Part 1: Process
Part 2: Materials
Part 3: System Requirements
Part 4: Operation, Monitoring and Maintenance
Part 5: Monitoring and Reporting

Septic System Maintenance & Care Brochure

Certified Professionals

Septage Pumpers
Installers List
Designers List
OM&M Specialists

New Development Information

Applicant Information Guide
Installer Information Guide
Importance of Parcel Review

System Repair Information

Repair Policy & Procedure

Application Forms and Supporting Documents

Site Evaluation Application (New Development)
Construction Permit Application (New, Repair, Replacement, Expansion, Destruction)
Standard Gravity System Design Form (New, Repair, Replacement, Expansion)
Pressure Distribution & Supplemental Treatment System Design Form (Alternative Systems)
As-Built Report (New, Repair, Replacement, Expansion)
Declaration of Septic Tank Destruction Form (Destruction)
Operating Permit Application (Alternative Systems)
Access, Inspection, and Permitting Notification (AIPN) Form (Alternative Systems)
Large Parcel Deed Restriction Form (Second-Dwelling Requirement)
Service Request Form (Building Clearances and Water Samples)
Agent Authorization Form