Get a First-Hand Look at How “Your” Water Pollution Control Facility Works.

When:   9:30 am – Second Wednesday of February, May, August, November

Where: 2600 Grant Avenue, San Lorenzo

The tours require walking or standing for up to 60 minutes.

This is a working plant. Children under the age of 8 are not allowed.

For your safety: Tour guests should wear a shoe that covers the whole foot such as athletic shoes for walking shoes. Those wearing flip flops or sandals will not be allowed to take the tour.

To attend the a regularly scheduled Quarterly Public Tour, please select the date below and fill out the form on the following page:

May 8, 2019 >>

August 14, 2019 >>

November 13, 2019 >>

February 12, 2020 >>

If you are interested in a Special Tour, please call the District at (510) 276-4700 to schedule a date and time. Special Tours are conducted on dates other than those reserved for Quarterly Public Tours and are subject to staff availability.

Special Tour guests are responsible for bringing an adequate number of adult chaperones as outlined below:

Student age Required Student/Adult Ratio
8 -11 years old 1 chaperone per 7 students
12 – 18 years old 1 chaperone per 10 students

Important Numbers

(510) 276-4700 Oro Loma Sanitary District Office 24/7 Emergency Response

(510) 613-8710 Waste Management of Alameda County

(877) STOPWASTAlameda County Recycling Hotline

(800) 606-6606 Alameda County Household Hazardous Waste

Email Newsletter