Carollo Engineers


About Carollo Engineers


More Info on Carollo Engineers

For more than 85 years, Carollo Engineers has provided a full range of innovative planning, design, and construction management services to meet the water and wastewater needs of municipalities, public agencies, private developers, and industrial firms. Carollo develops robust water management strategies that leverage collaboration, provide multi-benefit solutions, and achieve sustainability and resiliency. Ranked by Engineering News-Record as the largest engineering firm in the United States dedicated solely to water and wastewater, Carollo has nearly 1,400 employees located across 22 states. To learn more about how Carollo is “Working Wonders With Water,®” call (800) 523-5826 or visit

Products and Press Releases

Courtesy of Carollo
South Platte Renew Gas Recovery Facility

Colorado resource recovery facility takes home WEF 2020 project excellence award

Oct. 29, 2020
Renewable natural gas-to-pipeline project lauded for environmental and economic benefits

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