What West Bay Sanitary District does

West Bay Sanitary District is a California special district established on December 10, 1902, under the State Health and Safety Code, providing sanitary sewer collection and conveyance services across San Mateo County. It serves Menlo Park, Atherton, Portola Valley, portions of East Palo Alto and Woodside, and unincorporated areas of San Mateo and Santa Clara counties. The district operates a collection system built around gravity sewers, the Menlo Park Pump Station, and force mains that convey raw wastewater to Silicon Valley Clean Water (SVCW) for treatment and discharge to the San Francisco Bay. It employs 43 staff (2023 California State Controller data), with total wages of approximately $4.99M and retirement/health contributions of $1.26M.

The service portfolio includes core sanitary sewer collection, 24/7 emergency sewer clearing with courtesy cleaning, a Capital Improvement Program for system rehabilitation and upgrades, recycled water operations through the Water Quality Department, waste management coordination, and digital self-service through the eTRAKit Online Permitting System. An optional Sewer Line Protection Program is offered in partnership with HomeServe for residential customers. The district's technology stack is conventional infrastructure plus the Streamline CMS for the public website and the third-party eTRAKit platform for permits, payments, and plan review.

Revenue is generated primarily through annual sewer service charges billed to residential and commercial ratepayers, supplemented by one-time permit, connection, and plan review fees. Pricing tiers are not publicly disclosed on the website. The district is governed by an elected Board of Directors and operates as a non-tax-supported special district, with service delivered directly by in-house operations and maintenance staff. The General Manager has held the role since 2010, providing long leadership continuity.

Name

West Bay Sanitary District

Legal name

West Bay Sanitary District

Website

https://westbaysanitary.org

Company type

Private

Founded year

1902

Operating status

Operating

Headcount range

11–50 employees

Short description

West Bay Sanitary District is a California special district established in 1902 that provides wastewater collection and conveyance services to residential and commercial properties across Menlo Park, Atherton, Portola Valley, and surrounding San Mateo County communities, employing 43 staff.

Ownership category

akta.pro rank

Product category

Municipal Wastewater Services

NAICS

Water, Sewage and Other Systems (2213), Water Supply and Irrigation Systems (22131), Waste Collection (56211)

SIC

Sanitary Services (4950), Electric, Gas & Sanitary Services (4900), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Gravity Sewer Collection Networks (Sanitary Sewers) (EUANACAA)

akta.pro secondary industries

Pressurized Sewer Systems (Force Mains) (EUANACAB), Sewer Cleaning, Jetting & Root Control (EUANACAH), Sewer & Stormwater Line Cleaning (Jetting, Rooting) (BPALAMAG), Sewer Line Cleaning & Root Removal (HSAOABAC), Stormwater Management & MS4 Compliance Services (BPALAMAL)

Keywords

• Wastewater collection services
• Sanitary sewer services
• Sewer infrastructure management
• Municipal sewer utility
• Sewer conveyance operations

Headquarters

HQ city

Menlo Park

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Others

Revenue model

1. Sewer Service Charges: Annual sewer service charges billed to residential and commercial properties within the district service area
2. Permit and Connection Fees: Fees collected for permits, connection charges, plan review, will-serve letters, sewer map requests, and annexations through the eTRAKit online system

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

West Bay Sanitary District collects and conveys sanitary wastewater from residential and commercial properties within its exclusive service area in San Mateo County, California. The district operates and maintains gravity sewers, the Menlo Park Pump Station, and force mains, delivering raw wastewater to Silicon Valley Clean Water for treatment. It also provides 24/7 emergency sewer clearing, recycled water services, capital improvement programs, permit processing, and FOG compliance support for commercial food service establishments.

Product overview

West Bay Sanitary District operates as a special district providing cost-effective sanitary sewer service to protect public health and the environment. The District offers a unified portfolio of wastewater collection and conveyance services (through the Menlo Park Pump Station to Silicon Valley Clean Water for treatment), combined with sewer clearing/maintenance, capital improvement programs, recycled water services, and an eTRAKit Online Permitting System for digital self-service. The core service infrastructure includes operations and maintenance staff providing 24/7 emergency response, supported by an IT department managing web-based applications and compliance systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Sanitary Sewer Collection Service Core wastewater collection and conveyance service providing sanitary sewer infrastructure to residential and commercial customers in Menlo Park, Atherton, Portola Valley, East Palo Alto, Woodside, and unincorporated San Mateo and Santa Clara counties.
• Sewer Clearing Service 24-hour emergency sewer service and courtesy cleaning service for sewer-related problems. The district clears blocked public sewer mainlines and advises property owners on private sewer line issues.
• Capital Improvement Program
• Recycled Water
• Waste Management Coordination
• eTRAKit Online Permitting System

Quantifiable outcome

• 43 employees managing wastewater collection for multiple municipalities

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Partnerships

Seven partnerships are on record, tiered minor and core.

• RethinkWasteminorStrategic or Co-development Partner · 14 May 2026RethinkWaste is a joint powers authority that provides education and outreach programs. The district participates in RethinkWaste Self-Guided Virtual Tour programs for public education.
• Silicon Valley Clean Water (SVCW)coreStrategic or Co-development PartnerSilicon Valley Clean Water (SVCW) is the primary wastewater treatment partner. The district conveys raw wastewater via the Menlo Park Pump Station and force main to SVCW for treatment and discharge to the San Francisco Bay. This is a critical operational partnership for the district's core service delivery.
• Menlo Park Pump StationcoreTechnology or IntegrationThe Menlo Park Pump Station is a key infrastructure asset that pumps the district's raw wastewater through force mains to the treatment facility. The district manages and operates this pump station as part of its collection system.
• South Bayside Waste Management Authority (SBWMA)minorStrategic or Co-development PartnerSBWMA is referenced in district documents and acronyms as a regional partner organization for waste management activities in the South Bay area.
• Bay Area Clean Water Agencies (BACWA)minorStrategic or Co-development PartnerBACWA is a regional organization of clean water agencies in the Bay Area. The district maintains membership and participates in BACWA activities for regional coordination and advocacy.
• California Water Environment Association (CWEA)minorStrategic or Co-development PartnerCWEA is a professional association for water environment professionals. The district's staff hold leadership positions including chapter chairs and committee leadership. General Manager Sergio Ramirez serves as Faculty/Instructor for the CWEA Technical Certification Program.
• American Public Works Association (APWA)minorStrategic or Co-development PartnerAPWA is a professional organization for public works professionals. District staff maintain membership and certifications through APWA.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Santa Clara Valley Water District: Regional water resources agency managing water supply, flood protection, and stewardship across Santa Clara County. Comparable public agency operating model with overlapping service geography, though broader mandate than WBSD's sanitary sewer focus.
• Sanitation Districts of Los Angeles County: Largest wastewater agency in the western United States, providing collection, treatment, and solid waste management across LA County. Comparable special district model at vastly larger scale; represents the upper bound of what California sanitary district operations can become.
• East Bay Municipal Utility District: Major Bay Area water and wastewater utility serving Alameda and Contra Costa counties. Overlapping wastewater collection and conveyance functions at significantly larger scale; provides broader water/wastewater portfolio than WBSD's specialized sanitary focus.
• Sacramento Area Sewer District: Large regional sewer district providing wastewater collection and conveyance across Sacramento County. Comparable service function but at much greater scale and broader geographic reach than WBSD's concentrated service area.

Others

• Veolia North America: Private operator providing contract operations and management services for municipal water and wastewater systems. Comparable service capability but operating as a private for-profit entity versus WBSD's public agency model.

Direct peers

• Union Sanitary District: Bay Area special district providing wastewater collection, treatment, and disposal services for Fremont, Newark, and Union City. Comparable California special district model, though slightly larger with integrated treatment operations.
• Castro Valley Sanitary District: California sanitary district providing wastewater collection and conveyance services in Alameda County. Highly comparable operating model — small special district, collection-only (treatment handled by others), similar employee scale and regulatory framework.
• Central Contra Costa Sanitary District: Large California special district providing wastewater collection and treatment to central Contra Costa County. Closest operating model match — special district status, Bay Area geography, similar service mix, though at significantly greater scale.
• Silicon Valley Clean Water: Joint Powers Authority providing wastewater treatment to WBSD and other member agencies. Direct operational partner for treatment and discharge; comparable governance model (public agency, not private), serving overlapping customer geography.

Regional players

• Town of Los Altos Hills (Town Government): Adjacent municipality partially within WBSD's service area boundary. Documented WBSD customer per the Los Altos Hills resident notification on the district's website; relevant peer as a customer-municipality rather than a service provider.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about West Bay Sanitary District