Carollo Engineers


About Carollo Engineers


More Info on Carollo Engineers

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In a world of generalists, a water specialist provides great value. At Carollo, water is all we do.

Carollo Engineers is an environmental engineering firm that specializes in the planning, design, and construction of water and wastewater facilities. Our firm was founded in Phoenix, Arizona, in 1933 and counts the City of Phoenix among one of our original clients—a working relationship that is 87 years old! From that single office with three engineers, Carollo has grown to more than 1000 people in 47 offices throughout the United States. Our staff includes civil, structural, electrical, mechanical, environmental, and instrumentation and control engineers, as well as scientists, planners, architects, and CAD designers.

Articles & News
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Direct potable reuse gets a win in Texas

Dec. 23, 2019
Bureau of Reclamation awards El Paso Water $3.5M for Carollo-designed water reuse project.
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Then and Now

Oct. 24, 2019
Direct potable reuse demonstration in Denver 30 years later

SFPUC honored for excellence in sustainable infrastructure

Aug. 5, 2019
New headworks facility in the Bayview honored with Envision Gold status by the Institute for Sustainable Infrastructure.

Videos & Resources

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The Drop: Proactive Approach to Potable Reuse Treatment

Jan. 24, 2020
With special guest, Carollo's Eva Steinle-Darling.
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Water Utility Management

The Drop: Risk and Resilience under America's Water Infrastructure Act

Sept. 16, 2019
Carollo's Sarah Deslauriers discusses new risk mitigation requirements.
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The Drop: Wastewater's role in reducing greenhouse gas emissions

Dec. 3, 2018
E3 (Dec. 3, 2018): Climate change expert Sarah Deslauriers of Carollo Engineers discusses how concern about greenhouse gas emissions, such as methane, is driving exciting changes...

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