Upgrade to water-pollution-control plant wins honors

Oct 15, 2019

A project to replace the chemical-disinfection system with an ultraviolet-light system at the Fairfax County government’s Noman M. Cole Jr. Pollution Control Plant in Lorton has earned an Envision Gold award from the Institute for Sustainable Infrastructure.


The $72 million project is one of many upgrades to the plant, which treats more than 40 percent of the county’s wastewater.

Following a detailed evaluation of alternatives, ultraviolet disinfection was selected to replace the sodium-hypochlorite system, which county officials say was complicated to operate, labor-intensive to monitor and expensive to maintain.

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