Arizona Invests $163m in Wastewater Treatment

The County of Pima in Arizona, US, has earmarked $163m to upgrade the Ina Road Wastewater Treatment Plant in Tucson.

Pima County allotted the contract to Colorado-based MWH Constructors to undertake the project, which will ensure the plant meets federal guidelines for the amount of nitrogen and ammonia in the treated water.

On completion, the Ina Wastewater Plant will process 50 million gallons of wastewater each day.

The county also plans to build a new wastewater treatment plant, replacing the existing plant at Roger Road, which will process about 32 million gallons of waste water per day, according to azstarnet.com.

The water expansion projects were undertaken to meet federal water guidelines and the current investment is part of a $720m upgrade for the wastewater facilities funded by the county.