Multi-year improvement project modernizes clarifiers and activated sludge tanks to support long-term operational performance.

WALNUT CREEK, Calif., Aug. 1, 2023 /PRNewswire/ -- Carollo Engineers, the leading water engineering and consulting firm in North America, is proud to announce its receipt of three distinguished ...

WALNUT CREEK, Calif., Oct. 11, 2023 /PRNewswire/ -- Carollo Engineers, a leading water engineering and consulting firm in North America, is proud to announce the official launch of two technical ...

ELK GROVE, Calif., July 11, 2023 /PRNewswire/ -- Carollo Engineers, North America's premier water engineering and consulting firm, has completed planning, design, and engineering services during ...

WALNUT CREEK, Calif., May 20, 2025 /PRNewswire/ -- Carollo Engineers, a leading North American water engineering and consulting firm, today announced the launch of "The ABCs of Water Reuse," an ...

Lebanon city staff got the green light from city council to negotiate contract with Carollo Engineering for the design of the water treatment plant. Ron Whitlach, engineering services manager, gave an ...