The City of Oklahoma City sends this information as posted below:
Beginning Dec. 1, Oklahoma City’s Hefner Water Treatment Plant (WTP) will enter the next phase of its $44 million improvement project to modernize its ozone disinfection system and increase treatment capacity.
The project will have no impact on the safety of the water, although some customers may temporarily notice a slight difference in the water’s taste or odor.
“We’re excited to continue making progress on this important upgrade, which we first began last December,” Utilities Director Chris Browning said. “Modernizing the Hefner Water Treatment Plant is a key step in ensuring we can meet current and future demands while maintaining our commitment to delivering safe, high-quality drinking water to all customers.”
During this phase of the project, crews will temporarily shut down the plant’s ozone disinfection system, allowing for upgrades to be made. The shutdown is anticipated to last for five weeks. While the ozone system is offline, plant operators will transition to a chlorine-based disinfection process—similar to the one used at the Draper WTP, where ozone is not utilized. Both types of disinfection meet all regulatory guidelines as required by the U.S. Environmental Protection Agency and the Oklahoma Department of Environmental Quality.
The replacement of the Hefner WTP’s ozone system is essential as the current system approaches the end of its service life. Once complete, the plant’s rated treatment capacity will increase from 75 million gallons per day (MGD) to 100 MGD, allowing it to better meet peak demand, particularly during high-use summer months.
The Hefner ozone system upgrade is scheduled for completion in 2025. For more information about the Oklahoma City Utilities Department, visit okc.gov/utilities.
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