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Debate continues over decentralized sewer systems in Hamilton County and Tennessee

Staff photo by Abby White / Britton Dotson with the Tennessee Department of Environment and Conservation gives a presentation Jan. 8, 2025, on the uses and upside of having a decentralized sewage system. Representatives from the state and the Hamilton County Waste Water Treatment Authority gave a presentation on the proposed decentralized sewer system for a planned development to Walden residents.
Staff photo by Abby White / Britton Dotson with the Tennessee Department of Environment and Conservation gives a presentation Jan. 8, 2025, on the uses and upside of having a decentralized sewage system. Representatives from the state and the Hamilton County Waste Water Treatment Authority gave a presentation on the proposed decentralized sewer system for a planned development to Walden residents. Staff photo by Abby White / Britton Dotson with the Tennessee Department of Environment and Conservation gives a presentation Jan. 8, 2025, on the uses and upside of having a decentralized sewage system. Representatives from the state and the Hamilton County Waste Water Treatment Authority gave a presentation on the proposed decentralized sewer system for a planned development to Walden residents.

By Ellen Gerst 5 min read

The debate over the viability of decentralized sewer systems in Hamilton County and across the state continues this week.

The systems enable larger-scale building in areas not served by traditional sewer or when the traditional sewer system is at capacity, as it is now in the Chattanooga area.

County commissioners Wednesday, faced with a resolution that proposes requiring any of those type of systems to be subject to standards established by local utilities, said they need more education on how the systems work.

(READ MORE: Neighbors worry Signal Mountain sewer proposal could cause contamination)

State lawmakers are also considering a bill and potential amendment that could allow decentralized sewer systems to essentially bypass local regulations. A hearing on the bill scheduled for Wednesday was pushed back two weeks.