• Water Pollution Prevention


1444 Borregas Avenue
Sunnyvale, CA 94089

Mailing Address:
P.O. Box 3707
Sunnyvale, CA 94088-3707

Phone: (408) 730-7260,
TDD (408) 730-7501

Fax: (408) 747-1139

Contact us

M-F,  7 a.m. - 4 p.m.


Water Pollution Prevention

Reporting Spills or Dumping

No Dumping into storm drains. They flow directly to the Bay!

To report non-emergency discharges or dumping of non-hazardous materials into storm drains, call 408-730-7260, TDD 408-730-7501 from 7 a.m. - 4 p.m. Monday through Friday. After hours, call 408-730-7181, or e-mail the information to the WPCP.

For emergency reports of hazardous spills or dumping into storm drains, call 9-1-1 or 408-736-6244.

Pollution Prevention

All sewage coming from the inside of buildings is treated before being discharged to the Bay. However, traces remain of some pollutants that cannot be removed entirely. Do not pour hazardous materials down the drain. Instead, take them to a disposal and/or recycling site. For Sunnyvale residents and businesses, contact the City's recycling program at 408-730-7262, TDD 408-730-7501 for information and details on drop off. For anyone living or working outside of Sunnyvale, contact the County Household Hazardous Waste program at 408-299-7300 or at HHW.

Rain and water draining from lawns and gardens (runoff) collect contaminants such as pesticides, fertilizers, automotive fluids, pet waste and other debris, and are carried to the storm drain system where the water flows untreated directly to our local creeks and the Bay.

For more detail about pollution prevention and what you can do to help, click on the links located on the left hand side of this page or one of the following:

Get discounts on car washes and other great products and services, and protect the environment, too, with the Watershed Watch Discount Card.

Official Disclaimer: The Department of Pesticide Regulation provided partial or full funding for this project but does not necessarily recommend or endorse any opinion, commercial product, or trade name used.

Don't play around with spray when there are better ways to keep ants away! Visit Got Ants? Get S.E.R.I.O.U.S.! for more info.

The Got Ants website is a project from the San Francisco Estuary Partnership, which in turn is a project of the Association of Bay Area Governments.

Rethink What You Flush

Disposing of anything other than toilet paper in the toilet can cause sewer line blockages and result in Sanitary Sewer Overflows. Think before you flush and product your family, community, and waterways.

Wipes, even if disposable can cause clogs. Watch the Consumer Reports video on disposable wipes at Baywise.

Construction and Demolition Projects

When stormwater drains off of a construction site, it carries sediment and other pollutants that harm our local creeks and the San Francisco Bay. Prevent storm drain pollution during new construction, remodeling or major landscaping projects.

The City of Sunnyvale and the Santa Clara Valley Urban Runoff Pollution Prevention Program developed the following materials to provide information to local residents and businesses on preventing construction-related stormwater pollution:

Environmental Education

The Environmental Outreach Program at Sunnyvale's Water Pollution Control Plant provides information and education on water pollution prevention to the local community, schools and youth, and to local businesses and industry. Outreach activities include:

  • Speakers' Bureau
  • Environmental Fairs
  • Tours
  • Classroom Presentations

    For more information or to schedule a presentation contact Environmental Outreach at 408-730-7717, TDD 408-730-7501.


    City of Sunnyvale

    Normal City Hours of Operation are
    8 a.m. until 5 p.m.

    (408) 730-7500

    • Sunnyvale City Hall
    • 456 W. Olive Ave.
    • Sunnyvale, CA 94086
    • TDD (408) 730-7501
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    • City of Sunnyvale Logo

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