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Practices

Drinking Water

Markets

Local Government

Priorities

Water Reuse and Desalination

Pioneering high-recovery treatment for lasting water security 

As population growth and persistent drought placed increasing pressure on its limited groundwater resources, East Cherry Creek Valley Water & Sanitation District (ECCV) implemented an advanced four-stage reverse osmosis (RO) system that transforms brackish groundwater into a reliable, high-quality and environmentally responsible drinking water source for the future. 

Advanced reverse osmosis design 

A four-stage RO system achieves 94–96% recovery, far exceeding the 75–85% typical for brackish treatment systems. 

An innovative brine disposal strategy 

Two deep-injection wells safely pump the concentrate 10,000 feet underground, making ECCV a national pioneer in the method. 

Optimizing for cost efficiency 

At $2.80 per 1,000 gallons, water production costs are one-third of the industry benchmark for brackish RO facilities.

Expanding system resilience 

Facility expansion, automated cleaning processes and RO stages deliver long-term reliability and maintenance. 

ECCV’s high-recovery RO facility has set new performance benchmarks for municipal utilities, reducing brine volume by 70% while achieving sustainable supply for one of the nation’s fastest-growing regions. “We had to bring all our past projects and R&D experience to figure out a way to make it work,” said Tim Rynders, our discipline leader for water treatment process and piloting.

Curious to learn more?

Connect with an expert to find out how we delivered this project.

Brown_Doug.jpg

Doug Brown, PE, BCEE

Desalination Discipline Leader

Doug is a nationally recognized designer of innovative reverse osmosis systems, with experience designing treatment plants and associated infrastructure,

Practices

Drinking Water

Markets

Local Government

Priorities

Water Reuse and Desalination

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