Castro Valley Sanitary District

06/03/2026

📣Last chance! We are drafting a Hazard Mitigation Plan to identify hazards that threaten our services and to develop strategies to protect them. Your input is essential to ensuring our community is resilient after a disaster strikes, and we need your feedback. Take a quick survey to help shape a safer, stronger, and more resilient future for our community. The survey will remain open until Friday, June 5, 2026.

➡ https://www.surveymonkey.com/r/G9B2QGY

06/03/2026

CVSan's Wastewater 100

#2 Every day, the CVSan wastewater collection system transports, treats, and disposes of more than 3.5 million gallons of wastewater from homes and businesses to the San Francisco Bay.

Learn more about the high performance - low-cost wastewater services we provide at cvsan.org/Wastewater

06/03/2026

Hey Castro Valley! Check out these take-out tips from Bay Area Recycling Outreach Coalition (BayROC).

06/02/2026

Do Not Flush Wipes!

Wipes Clog Pipes! Everyone has a role in maintaining reliable wastewater pipelines and facilities. We can all take simple actions to make sure Castro Valley's wastewater system works. Please, say NO to so-called "flushable wipes"!

06/01/2026

A BIG Thank You for attending our Open House this past weekend. It was great to see everyone. If you missed the event, a few slots are still available for our upcoming June Building Tours. Sign up at www.cvsan.org/CVSanTour.

Schedule your appointment online CVSan Headquarters Tour

06/01/2026

What to use a Q-tip for may be up for debate, but where it belongs isn't!

One thing everyone can agree on: Q-tips do not belong in the toilet. Just because it fits doesn't mean it should be flushed!

Flushing anything other than P*e, P**p, and Toilet Paper can cause blockages in your home's sewer lateral and the public sewer mains. The result? Costly repairs, raw sewage backups, and damage to CVSan's wastewater infrastructure.

Please, only flush the 3 P's: P*e, P**p, and Toilet Paper!

05/29/2026

Attention! There has been an increase in the number of wipes and rags found in Castro Valley's sewer system.

When you flush things other than P*e, P**p, and Toilet Paper down the toilet, it causes problems in your home’s lateral and the public sewer main. Maintaining reliable wastewater pipelines and facilities is everyone’s responsibility. We can all take simple actions to make sure our system works. Only flush the 3 P’s! Thanks for doing your part to keep Castro Valley’s wastewater moving!

05/28/2026

Come Take a Tour of The Castro Valley/Oro Loma Wastewater Treatment Plant!

Did you know that CVSan owns a 25 percent interest in the Castro Valley/Oro Loma Wastewater Treatment Plant? The Treatment Plant, along with other CVSan infrastructure assets, is the backbone of our community’s utility infrastructure. Get a first-hand look at how your wastewater Treatment Plant works.

The next public tour will be on Wednesday, August 12, 2026, at 9:30 am.
https://orolomasanitarydistrict.ca.gov/public-tour-august-12-2026

Please note:
• 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 shoes that cover the entire foot, such as athletic or walking shoes. Flip-flops or sandals are not permitted on the tour.

Get a first-hand look at how your wastewater treatment plant works.

05/27/2026

CVSan's Wastewater 100

#1 The cost to replace one of CVSan's pump stations would be over $1,000,000.

Learn more about the wastewater services we provide at cvsan.org/Wastewater

05/26/2026

Hey Castro Valley, make your summer cleanout easy! Dispose of old batteries, medicines, and cleaners safely at our free event in Oakland on Sunday, June 14. Secure your spot now—appointments will fill up quickly: www.stopwaste.org/hhw-oakland This event is open to all Alameda County Residents.

Collect all your household hazardous waste and bring it to our event to dispose of it safely and for free in Oakland. To secure your spot, please make an appointment using the button below. The event address will be sent to you in the confirmation email. Space is limited, so we recommend registering...