Orinda Treatment Plant Tour
For those who signed up for the tour, this has also been postponed to Wednesday 5/6/26.
For those who signed up for the tour, this has also been postponed to Wednesday, May 6. This Orinda WTP TOUR registration page has now been set up for this event.
Registration for the tour is free (with the use of coupon codes listed in the Bookings section below) and spots are limited. Priority will be given to students and YMF members and spots are first come first served.
All tour attendees shall complete and provide a signed waiver form dated 5/6/26. Attendees may email the completed form to mun.lee(at)ebmud.com or bring a signed printed copy of the form to be collected prior to the tour.
Tour attendees shall wear sturdy closed-toe shoes/boots or safety shoes, long pants, along with hard hat, safety vest, and bring safety glasses and gloves if possible. The District will have some limited PPE supplies (vest, hard hat, gloves, glasses), but there will not be enough to loan out for everyone.
The tour begins at 3:00 PM, and is approximately 1.5 hours ending around 4:30 PM, giving attendees enough time for transit to the EBMUD Oakland Administrative Building at 375 11th Street for those that signed up for the presentation and dinner event which starts around 5:30 PM. Attendees shall coordinate their own way from the Orinda WTP to the Oakland Admin Building. Street parking or paid parking at the garage adjacent to the EBMUD Oakland Admin Building (Pacific Renaissance Plaza Parking Garage – Google Maps) is available for the dinner event.
WHEN: May 6th, 2026, 3:00 PM to 4:30 PM
LOCATION: Orinda Water Treatment Plant
190 Camino Pablo, Orinda
Tour attendees shall meet at the Orinda Water Treatment Plant, but attendees shall park within the Wash Water Basin facility across from the Manzanita Drive entrance. The gate to the basin facility will be open – see map below).
Parking is free but there is limited space and attendees are encouraged to carpool if possible.
Come tour the Orinda WTP site and learn about East Bay Municipal Utility District’s most expensive single project in its history, the Orinda Disinfection and Chemical Safety Systems Improvements project.
This $341 million project involves a massive improvement to the EBMUD’s most important treatment plant, a must-run facility which serves 800,000 customers.
This project is built 65-feet below ground surface and it includes almost every element of complex underground construction – 72-feet deep secant pile wall walls for excavation support, tie-backs under the existing plant and creek, several tunnels up to 10-foot diameter, automated geotechnical instrumentation, and complex shoring systems for existing structures. Come learn about geotechnical, structural, and hydraulic challenges faced building this project which is wedged in between sensitive wildlife habitat and utility lifelines.
