Stacy Witbeck https://swhhsr.com/Areas/CMS/assets/img/STW-logo.png California CSLB #414305,2800 Harbor Bay Parkway
Alameda, CA 94502
510.748.1870

Building Water Infrastructure That Works

For over four decades, we’ve partnered with communities to deliver reliable, forward-thinking water and wastewater infrastructure. What began with a single pipeline has evolved into a legacy of hands-on experience across a full range of projects—from gravity and pressurized conveyance systems to pump stations and reservoirs.

Our Clients & Capabilities 

We work closely with public agencies, engineers, and industry partners to build and maintain the systems people depend on every day.

Our capabilities include:

  • Water & wastewater conveyance systems
  • Pump station construction and rehabilitation
  • Water and wastewater treatment facilities
  • Flow control stations and reservoirs
  • Stormwater capture and reuse systems


Our Team

With in-house expertise in civil, structural, and mechanical, we self-perform critical aspects of each project. Our team is experienced in installing advanced treatment technologies, including pretreatment, UV disinfection, and media filtration systems.

We believe in building the kind of infrastructure we’d want in our own communities—safe, reliable, and done right.

Alternative Delivery That Fits the Job

With more than 40 years of experience and over $15.5 billion delivered through alternative delivery methods, we take a flexible, collaborative approach tailored to each project’s unique needs. 

  • Over 100 utility agencies served nationwide 
  • Experienced in CMAR, Design-Build, and Bid-Build 
  • Strong self-perform capabilities and national partnerships

Local Roots, Lasting Relationships

We know that every project is local. That’s why we invest in strong regional partnerships and work hard to support the people and priorities that make each place unique.

Built on collaboration, trust, and shared values, our relationships drive better outcomes for the project and the people who count on it.

No matter the delivery method, our focus remains the same: building strong relationships and delivering dependable results.

Featured Projects

Water Infrastructure Project Types