Mid-Peninsula Water District | Sustainable Water for Future Generations

Mid-Peninsula Water District

California Way of Life - Water Efficiency Resources

Free Wildfire Safety Webinar - January 21

Protect Your Home, Family, & Community!

Additional Resources for Water Conservation

Links to sites that specialize in water conservation and water efficiency issues.

MPWD Water Efficient Landscape Ordinance (WELO)

Outdoor Landscape Submittal Instructions

MPWD Customer Connect

The Mid-Peninsula Water District is dedicated to tailoring our communications to customer needs. You can register for MPWD’s Customer Connect program to receive News Flash alerts via text or email, e-newsletters, and participate in surveys. Subscribe today and get connected!

Board of Directors Meetings

The MPWD Board of Directors regularly meet the 4th Thursday of each month at 6:30 pm at 1075 Old County Road, Suite A, Belmont, CA 94002.

Learn More

Next Meeting

Board meeting agenda are required to be displayed online for public access at least 72 hours before scheduled Board meetings. Please CLICK HERE to view the agenda as they are made available.

Serving You Since 1929

The Mid-Peninsula Water District (MPWD), formerly Belmont County Water District, was formed in 1929 from the physical plant of seven independent systems, including the Spring Valley Water Company, which were united and began functioning as a public utility in 1930.

The mission of MPWD is to deliver a safe, high-quality, reliable supply of water for current and future generations in a cost-effective, environmentally-sensitive, and efficient manner. Learn more about MPWD HERE.

Water Quality
Outdoor Landscape Submittal
A Green Business
School Education
Calendar

Our major water source originates from spring snowmelt flowing down the Tuolumne River to storage in Hetch Hetchy Reservoir. The pristine, well protected Sierra water source is exempt from filtration requirements by the United States Environmental Protection Agency (USEPA) and State Water Resources Control Board’s Division of Drinking Water (SWRCB). Water treatment provided by the SFRWS, including disinfection by ultraviolet light and chlorine, corrosion control by adjustment of the water pH value, fluoridation for dental health protection, and chloramination for maintaining disinfectant residual and minimizing disinfection byproduct formation, is in place to meet the drinking water regulatory requirements.

The Hetch Hetchy water is supplemented with surface water from two local watersheds. Rainfall and runoff from the 35,000-acre Alameda Watershed in Alameda and Santa Clara counties are collected in the Calaveras and San Antonio reservoirs, and delivered to the Sunol Valley Water Treatment Plant (SVWTP). Rainfall and runoff from the 23,000-acre Peninsula Watershed in San Mateo County are stored in the Crystal Springs, San Andreas, and Pilarcitos reservoirs, and delivered to the Harry Tracy Water Treatment Plant.

Learn More

https://www.midpeninsulawater.org/rf/content.php?tag=Outdoor%20Landscape%20Submittal%20Tab%20Content#WATER EFFICIENT LANDSCAPE ORDINANCE (WELO): OUTDOOR LANDSCAPE SUBMITTAL INSTRUCTIONS

In coordination with the City of Belmont's permitting process, the Mid-Peninsula Water District (MPWD) reviews customer landscape plans regarding commercial and residential new development / construction, remodels, or additions on all lot sizes in excess of 1,000 sq. ft. in compliance with its Water Efficient Landscape Ordinance (WELO).

Approved WELO Ordinance #115

CLICK HERE for the Outdoor Landscape Submittal Instructions.

Bay Area Green Business official seal

As a certified Bay Area Green Business, the Mid-Peninsula Water District (MPWD) is dedicated to implementing sustainable practices to conserve energy and resources, minimize waste and our carbon footprint, and promoting conservation efforts in the community. For more information about the Bay Area Green Business Program, please visit www.greenbusinessca.org.

The Mid-Peninsula Water District (MPWD) is involved in outreach to local community schools to promote awareness of water and resources usage. Our centerpiece “Water Awareness Calendar” poster contest is conducted each year in collaboration with local elementary schools that involves 3rd to 5th graders. MPWD also hosts field trips from local schools and is expanding its School Education program to reach out further to the local school community.

Board of Directors Meeting - Open to the Public

04/24/2025

HOLIDAY: Memorial Day

05/26/2025

Board of Directors Meeting - Open to the Public

05/22/2025

Board of Directors Meeting - Open to the Public

06/26/2025

HOLIDAY: Independence Day

07/04/2025

Board of Directors Meeting - Open to the Public

07/24/2025

Board of Directors Meeting - CANCELLED

08/21/2025

HOLIDAY: Labor Day

09/01/2025

Board of Directors Meeting - Open to the Public

09/25/2025

HOLIDAY: Indigenous Peoples’ Day

10/13/2025

Board of Directors Meeting - Open to the Public

10/23/2025

HOLIDAY: Veteran's Day

11/11/2025

Board of Directors Meeting - Open to the Public

11/19/2025

HOLIDAY: Thanksgiving

11/27/2025

Board of Directors Meeting Open to the Public

12/11/2025

HOLIDAY: Christmas Eve

12/24/2025

HOLIDAY: Christmas Day

12/25/2025

HOLIDAY: New Year's Eve

12/31/2025

HOLIDAY: New Year's Day

01/01/2026

Water Conservation

Water Saving Tips, Rebate Programs, Landscaping, and more!

Hands-On Workshops

Our free workshops are designed to help you optimize your landscape skills.

Our Community

MPWD is dedicated to reaching out to our community and developing relationships.

Capital Improvement Program

MPWD has embarked on a 5-year CIP to upgrade existing water infrastructure so as to fulfill our mission to provide a safe, high-quality, reliable supply of water for current and future generations. Read More!

Catalog of Enterprise Systems

CA Senate Bill 272 Compliance
Approved on October 11, 2015, SB 272 added a section to the California Public Records Act requiring local agencies to create a catalog of Enterprise System with annual updates.

Public Records Act

The Public Records Act was enacted in 1968 and is a component of California’s commitment to open government. MPWD shares that commitment. Section 6253 of the Government Code provides that every person has a right to inspect any public record except those specifically exempted by law.

District Office

(650) 591-8941
1075 Old County Road, Suite A, Belmont, CA 94002
mpwd@midpeninsulawater.org
Hours: 8:00 am to 4:30 pm, Mon.-Fri.
Closed: Weekends and observed holidays.

Free Wildfire Safety Webinar - January 21

Additional Resources for Water Conservation

MPWD ​Water Efficient Landscape Ordinance (WELO)

MPWD Customer Connect

Board of Directors Meetings

Next Meeting

Serving You Since 1929

Board of Directors Meeting - Open to the Public

HOLIDAY: Memorial Day

Board of Directors Meeting - Open to the Public

Board of Directors Meeting - Open to the Public

HOLIDAY: Independence Day

Board of Directors Meeting - Open to the Public

Board of Directors Meeting - CANCELLED

HOLIDAY: Labor Day

Board of Directors Meeting - Open to the Public

HOLIDAY: Indigenous Peoples’ Day

Board of Directors Meeting - Open to the Public

HOLIDAY: Veteran's Day

Board of Directors Meeting - Open to the Public

HOLIDAY: Thanksgiving

Board of Directors Meeting Open to the Public

HOLIDAY: Christmas Eve

HOLIDAY: Christmas Day

HOLIDAY: New Year's Eve

HOLIDAY: New Year's Day

Capital Improvement Program

Catalog of Enterprise Systems

Public Records Act

District Office

MPWD Water Efficient Landscape Ordinance (WELO)