Knoxville Completes Plant Expansion to Improve Water Service
The Knoxville Utilities Board finalized a $70 million upgrade to the historic Mark B. Whitaker Water Treatment Plant.
Updated on Oct. 27, 2026 in Utilities
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The Knoxville Utilities Board has completed a $70 million expansion at the Mark B. Whitaker Water Treatment Plant to improve system reliability. This project introduces new infrastructure to ensure consistent service for the utility's more than 82,000 connections.
Why it matters
The expansion aims to bolster redundancy and prevent future water service interruptions. These improvements also facilitate necessary renovations to the facility's century-old building ahead of its 2026 centennial.
The expansion adds six new water filters capable of processing 38 million gallons per day and includes a new pump station. The utility has approved a 6% water rate increase that will take effect in July 2027.
The players
Knoxville Utilities Board
This is the municipal utility provider serving residents and businesses across the city of Knoxville.
Knoxville City Council
This local governing body is responsible for considering resolutions regarding significant public infrastructure grant funding.
Mark B. Whitaker Water Treatment Plant
This facility is a major water treatment site that provides essential utility services to the East Tennessee region.
The details
The project includes a backwash system and backup equipment designed to maintain operations during maintenance or potential equipment failures. Additionally, the upgrades allow for critical renovations to the original century-old structure, including roof replacement.
Timeline
The Mark B. Whitaker Water Treatment Plant celebrates its 100th anniversary in 2026.
The Knoxville City Council meets on October 27, 2026, to discuss $42.5 million in grant funding.
A 30-day site acceptance testing period is expected to begin in November 2026.
A 6% water rate increase becomes effective in July 2027.
Market Landscape
This project reflects a broader trend of aging municipal utilities prioritizing infrastructure redundancy over raw capacity expansion. It aligns with standard industry practices to maintain services while updating century-old assets to meet modern regulatory and operational demands.
Residents should anticipate a 6% increase in water rates starting in July 2027 to help cover utility costs. These facility upgrades are intended to minimize the likelihood of future service interruptions for the city's 82,000 connections.
The takeaway
Reliable access to water remains dependent on the ongoing maintenance and modernization of long-standing municipal infrastructure. Residents can monitor future City Council decisions for updates on how large-scale project funding impacts local utility bills.
What happens next
The Knoxville City Council is scheduled to hold a meeting regarding $42.5 million in grant funding on October 27, 2026.
Further reading
Learn more about local utility infrastructure updates in the Knoxville utilities section.
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Do you support prioritizing local utility infrastructure upgrades even if they impact future water rates?
