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Services

Plumbing

Our plumbing capability covers a range of projects — from simple to sophisticated. We design efficient, integrated plumbing systems with advanced solutions for water conservation, reclamation, and treatment. We also have expertise in specialized plumbing systems for process, manufacturing, and medical facilities. Tap into it.

  • Water/waste distribution & collection
  • ­Greywater conservation
  • Treatment: reclaim and recycling
  • ­Rainwater harvesting system design
  • Solar thermal system design

Plumbing Design Projects

UC Riverside North District 2 1280x650
University of California Riverside North District Phase 2 View Project
Garver Theatre 2 1280x650
Garver Theatre View Project
Draftkings 1280x650
Draftkings Sportsbook at Wrigley Field View Project
The Avenues DC 1280x650
Avenues: The World School New York - Summer 2025 Projects View Project
National Geographic Headquarters Modernization 1280x650
National Geographic Headquarters, Base Camp View Project
Marshall Medical Center 1280 x 650
Marshall Medical Center View Project
Capitol Park Hotel 1280 x 650
St. Clare at Capitol Park View Project
Roseville Civic Center 1280 x 650
Roseville Civic Center View Project
CSU Sacramento Student Housing 1280 x 650
California State University, Sacramento American River Courtyard Student Housing View Project

Leadership

Cahill 400X400

Kevin Cahill

Principal

Andrew Flanagan 400X400

Andrew Flanagan

Principal, Senior Plumbing Engineer

Scott Holum 400x400 v3

Scott Holum

Principal

Jerry Atienza 400x400

Jerry Atienza

Associate Principal, Senior Plumbing Designer

George Edpalina 400x400

George Edpalina

Associate Principal, Plumbing Engineer

Chris Scott 400X400

Chris Scott

Associate Principal, Senior Plumbing Designer

Thomas De Senna 400X400

Thomas de Senna

Associate Principal

Royce Fujii 400x400

Royce Fujii

Associate, Senior Mechanical Engineer

Todd Kolibaba 400x400

Todd Kolibaba

Associate, Senior Plumbing Designer

News & Awards

2026 UC Riverside North District 2 CMAA So Cal Project Achievement Award

UC Riverside North District Phase 2 Wins CMAA SoCal Project Achievement Award

We’re proud to share that University of California, Riverside – North District Phase 2 has been recognized with a CMAA Southern California Chapter Project Achievement Award in the…


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National Geographic Museum Opening Day

National Geographic Museum of Exploration Opening June 2026

National Geographic Announces Opening of the Museum of Exploration The National Geographic Society has announced that the new National Geographic Museum of Exploration will open…


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Sacramento Office External Announcement 3

Interface Engineering Strengthens California Presence and Client Services in Sacramento

From its early days as a Gold Rush hub to its current role as California’s vibrant capital, the Sacramento Metropolitan Area continues to grow and evolve, shaped by the people who…


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Bend Office External Announcement

New Office

Bend, OR

Since completing our first project in Bend, Oregon in 1976, Interface Engineering has built a strong legacy of delivering high-performance engineering solutions across Central…


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Learn More About What We Do

Careers

Looking for career growth and the opportunity to make a difference in our world? The path starts here.

View Our Open Positions

Contact

Collaboration can produce amazing results. Whether it’s your next project or a new career path, let’s work together.

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