Equipment Type

Houston Begins Build of Largest Water Purification Plant on the Planet

Groundbreaking ceremonies signaled the start fo the three-part project that will increase treated water capacity in the area to 320 million gallons per day.

September 18, 2017
The three part project will increase treated water capacity in the Houston area to 320 million gallons per day.

The Northeast Water Purification Plant expansion project is underway near Lake Houston in Harris County, Texas.

Groundbreaking ceremonies signaled the start fo the three-part project that will increase treated water capacity in the area to 320 million gallons per day.

The project includes the design and construction of a new raw water facility, which includes an advanced three-level intake, pumping, and conveyance to withdraw water from Lake Houston and deliver it through two new 108" pipelines to the treatment facilities located about 1.5 miles from Lake Houston.

The undertaking involves moving water three miles over a ridge and into a 23-mile canal that will feed Lake Houston, then pumped through 17 miles of pipe large enough to drive a car through.

The new facility is being developed by five parnters – the North Harris County Regional Water Authority, the West Harris County Regional Water Authority, the Central Harris County Regional Water Authority, the North Fort Bend Water Authority, and the City of Houston – who together to share the $1.35 billion cost.

The Greater Houston Water Department says that by 2025, surface water -- rather than groundwater -- must supply at least 60 percent of the water used by the area. That percentage will rise to 80 percent by 2035.

The reason is that with the rapid expansion of the Houston area, groundwater being pumped in Harris, Galveston, and Fort Bend counties has reached a point where the ground has sunk several feet, causing flooding. Some wells in the area have hit salty water and others have hit water that smells like sulfur.

The new plant will treat Lake Houston water and turn it into drinking water. Additional demand for surface water will be offset by the Luce Bayou Interbasin Transfer Project which will draw water from the Trinity River and transfer it into Lake Houston.

Northeast Water Purification Plant expansion will also include technology that includes an advanced oxidation process called ozonation that disinfects and eliminates disease organisms.

Construction and support work should employ about 2,500 people, according to estimates. The treatment plant segment of the job is expected to be complete by 2024.

For an in-depth explanation on Houston's water crisis, Read Water Project Promises Relief Before Houston Becomes Parched.

image: City of Houston

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