Grey Heron

Our Mission

Providing reliable sewer collection, treatment and disposal service at a reasonable cost to the Richardson Bay Sanitary District through it's own actions and as a member of the Sewer Agency of Southern Marin.

Protecting human health and the environment

Richardson Bay Sanitary District of Marin County provides collection of wastewater to parts of the Tiburon Peninsula and the Unincorporated Area of Strawberry. The District serves over 4,140 households and has been servicing the area since 1949.

The District collects wastewater in accordance with State and Federal Regulations under an NPDES (National Pollution Discharge Elimination System) Permit which regulates sanitary agencies.

Richardson Bay Sanitary District
500 Tiburon Blvd.
Tiburon, CA 94920
Phone: 415.388.1345
Fax: 415.388.1339

District Discharge Report

There are currently no discharge incedents to report in our service area.


Americans Coping With the Coronavirus Are Clogging Toilets

Notice of Meeting Time Change for July 19, 2022 Meeting

Notice of Vacancy - Board of Directors

Application for Vacancy

Be Sewer Smart

Backup Buster

"Be Sewer Smart"
is a public education campaign of the Association of Bay Area Governments' Pooled Liability Assurance Network (PLAN) Corporation.

It works to educate the public on becoming more aware of and understanding the risks and responsibilities related to the potential of sewer backups in their homes and businesses.

Learn how to protect your home and prevent inconvenient interruptions of your sewer service at