Tapcensus

Interim Enhanced Surface Water Treatment Rule violations in Tennessee

29 active public water systems in Tennessee had a Interim Enhanced Surface Water Treatment Rule violation in the past three years, 23 of them in the latest quarter of EPA's data. What Interim Enhanced Surface Water Treatment Rule is and why it matters.

Health effects: Violations indicate failure to meet treatment technique requirements that reduce exposure to Cryptosporidium, Giardia, and other microbial pathogens. Cryptosporidium poses the greatest risk to immunocompromised individuals, infants, and the elderly, and can cause severe or fatal illness in vulnerable populations.

Systems with a Interim Enhanced Surface Water Treatment Rule violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
First U.d. of Knox County
Knoxville · Knox County
115,531 1 1
Oak Ridge Dept of Public Works
Oak Ridge · Anderson County
41,614 1 1
Sevierville Water System
Sevierville · Sevier County
39,885 3 3
Morristown Utilities Commission
Morristown · Hamblen County
39,883 1 1
Anderson County W.a.
Lake City · Anderson County
29,945 3 1
Portland Water System
Portland · Sumner County
25,761 1 1
Lincoln CO B.p.u. #1
Fayetteville · Lincoln County
23,846 3 1
Woodbury Water System
Woodbury · Cannon County
11,840 1 1
Centerville Water System
Centerville · Hickman County
11,011 2 1
Sparta Water System
Sparta · White County
10,899 1 1
Hartsville-Trousdale W&s U.d.
Hartsville · Trousdale County
10,562 3 1
Ashland City Water Department
Ashland City · Cheatham County
9,159 2 2
Mount Pleasant Water Sys #1
Mount Pleasant · Maury County
8,914 2 2
Center Grove-Winchester Springs
Estill Springs · Franklin County
6,979 3 2
Waynesboro Water System
Waynesboro · Wayne County
5,534 3 3
Loretto Water Department
Loretto · Lawrence County
5,054 1 1
Northwest Clay County Utility
Moss · Clay County
4,437 3 1
Surgoinsville Utility District
Surgoinsville · Hawkins County
2,609 2 2
Cowan B.p.u.
Cowan · Franklin County
2,550 2 2
Norris Water Commission
Norris · Anderson County
2,126 2 2
Lincoln Memorial University
Harrogate · Claiborne County
1,600 2 1
ST Joseph Water System
St Joseph · Lawrence County
1,533 5 2
Chemours-New Johnsonville Plant
Humphreys County
465 2 2
Cumberland Utility District
Harriman · Roane County
14,085 8 2
First U.d. of Carter County
Elizabethon, Elizabethton · Carter County
9,143 2 1
Oliver Springs Water Board
Oliver Springs · Roane County
5,361 4 2
Dowelltown-Liberty W.s.
Dowelltown, Liberty · DeKalb County
1,049 9 1
Parksville Lake Usfs
Polk County
129 2 0
River Drifters Restaurant
Hamilton County
100 1 0
About this data

A system is counted once if any of its violations in the past three years involved Interim Enhanced Surface Water Treatment Rule, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Interim Enhanced Surface Water Treatment Rule alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Tennessee records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.