Hoot Advanced Septic Systems in Sonoma County
Advanced Treatment & OPR Program Support
We supply, start up and service Hoot advanced treatment systems for Sonoma County homes and businesses, from the Russian River and west county to Sonoma Valley and the hills above Santa Rosa and Petaluma.
Septic in Sonoma County
Sonoma County has everything that makes septic difficult: clay soils, high winter groundwater, steep hillsides and properties close to creeks and the Russian River. Many sites need more treatment than a conventional system provides.
The Hoot treats wastewater aerobically inside the tank, producing clean, clear effluent before it ever reaches the soil, which is exactly what sensitive watersheds call for.
Sonoma County approved the Hoot treatment system in 2009, making it one of the early California counties to allow it for onsite wastewater treatment.
How Sonoma County Regulates Advanced Septic Systems
In Sonoma County, septic systems are permitted by Permit Sonoma under the county’s Onsite Wastewater Treatment System Regulations and Technical Standards (the OWTS Manual, Version 8.0, adopted August 13, 2024).
- Systems with supplemental treatment require a separate Operational Permit (OPR) and enrollment in Permit Sonoma’s monitoring program.
- OPRs are annual and expire June 30 each year. Owners submit self-monitoring forms twice a year (spring and October).
- Getting an OPR requires a site plan and a signed, notarized Operational Permit Easement. The septic permit can’t be finaled until the OPR application is complete.
- Systems with at least two consecutive years of good operation may qualify for Permit Sonoma’s Reduced Annual Fee Permit.
- Sonoma County’s LAMP went before the North Coast Regional Water Board for approval in June 2026, so ask us about current requirements for your parcel.
Rules change and every parcel is different. Confirm current requirements with the county (Permit Sonoma OPR program), and call us with questions. We’ve worked with California county environmental health departments since 2006.
Hoot Services in Sonoma County
We manufacture and deliver Hoot systems, complete the tank-top connections and startup, and provide lifetime O&M service. Excavation and site work are handled by your licensed installer, and we coordinate with them from delivery through startup.
Free Hoot Suitability Consultation
Find out whether a Hoot fits your Sonoma County site before you spend on engineered design or more testing.
Hoot Supply & Statewide Delivery
As California’s authorized Hoot manufacturer and distributor, we deliver tanks and components directly to your job site.
Startup & Tank-Top Connections
We complete tank-top connections, controller programming, alarm testing and system startup, coordinated with your licensed installer.
Lifetime O&M Service
Scheduled service visits, performance checks and records to support your county permit, as required for every Hoot in California.
Alarms, Repairs & Diagnostics
Alarm response, component replacement and troubleshooting for Hoot systems throughout Sonoma County.
Designer & Contractor Support
Spec sheets, CAD drawings, wiring diagrams and inspection prep for the engineers and septic contractors on your project.
Communities we serve in Sonoma County include: Santa Rosa · Sebastopol · Guerneville · Forestville · Healdsburg · Windsor · Petaluma · Sonoma · Glen Ellen · Kenwood · Occidental · Bodega.
Sonoma County Septic FAQ
Explore the Hoot System Lineup → See Our Full Service Area →
Have a Septic Problem in Sonoma County?
Tell us about your property. We’ll let you know whether a Hoot system is a fit, at no cost and with no obligation.