Mesa Water District Water Reliability Facility

Carollo Engineers worked with Mesa Water to plan, design, and construct this new facility, which helps Mesa Water’s customers enjoy greater water supply reliability at a more stable cost. This treatment plant uses advanced membrane and filtration technology to treat groundwater contaminated by organic material, also known in the industry as “colored water.” Carollo provided preliminary and final design services, as well as engineering services during construction. This project won the 2012 Outstanding Groundwater Project Award from the National Ground Water Association.

Carollo’s Low-Cost Nitrate Removal Technology is Here!

Carollo’s biologically-tailored, two-stage treatment approach is an exciting water treatment process that can handle a wide range of groundwater contaminants, eliminate environmentally harmful waste streams, increase water recovery rates, and reduce treatment costs. Click here to find out more!

biottta logo

Carollo receives "2014 Award for Public Works"

OCSD Headworks Rendering

The Plant No. 2 Headworks Replacement project for Orange County Sanitation District, CA, has been awarded the "2014 Award for Public Works (More than $100 Million)" by the Construction Management Association of America. Click here to read about this project.