Tennessee tap water quality

445 active community water systems.

Largest water systems

GradeSystemPeopleHealth violations (5y)
AMetro Water Services (Nashville)789,9690
AMemphis Light, Gas and Water (MLGW)659,5000
AKnoxville Utilities Board - Kub254,6710
AClarksville Water Department251,8640
AConsolidated U.D. of Rutherford Co221,8710
ATennessee American Water207,0460
AWhite House Utility District130,4110
AFirst U.D. of Knox County115,5310
BMurfreesboro Water Department114,3311
AKingsport Water Dept107,7390
AJohnson City Water Dept105,0570
ACleveland Utilities95,0870
CJackson Water System91,1110
AWest Wilson Utility District86,9780
AColumbia Power and Water Systems84,6170
AMadison Suburban U.D.84,4370
AHallsdale-Powell U.D.84,3150
AWest Knox Utility District77,8250
CFranklin Water Dept77,2223
AWater Auth of Dickson County68,6750
AHixson Utility District68,3060
ASmyrna Water System66,9420
AGallatin Water Department65,9640
ASpring Hill Water Dept65,8400
AHarpeth Valley U.D.65,5180
ALebanon Water System60,6690
AEastside Utility District59,6120
AHendersonville U.D.59,0340
ABartlett Water System57,1290
BSouth Blount Utility District53,8641
ACity of Maryville W&s Dept52,1050
ACollierville Water Dept51,9720
ACookeville Water Dept49,7110
ASpringfield Water System46,5460
DFort Campbell Water System43,2700
AOak Ridge Dept of Public Works41,6140
AKnox-Chapman Utility District41,3110
AH.b.& T.S. Utility District40,0940
ASevierville Water System39,8850
AMorristown Utilities Commission39,8830
ALA Vergne Water System38,7300
AMilcrofton Utility District38,0320
AGermantown Water Dept37,7380
ABristol Dept of Utilities37,6480
CShelbyville Water System36,8130
AAlcoa Water System35,2380
ANewport Utilities Board34,9250
ALenoir City Utility Board34,7860
ANolensville-College Grove U.D.34,1590
BJonesborough Water Dept33,0691

Most issues (systems serving 10,000+)

D

Fort Campbell Water System

Serves 43,270 people · Surface water · Full report →
No health-based violations in the last 5 years; 21 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Other PFAS above 2024 limits (rule proposed for repeal): PFHxS, Hazard Index; Lead 90th percentile below the action level (2025).
D

Woodlawn Utility District

Serves 12,714 people · Surface water · Full report →
7 health-based violations in the last 5 years; 3 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
D

Fentress County U.D.

Serves 16,845 people · Surface water · Full report →
4 health-based violations in the last 5 years; 2 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
D

Bedford County U.D.

Serves 23,641 people · Surface water · Full report →
7 health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
D

Hartsville-Trousdale W&s U.D.

Serves 10,562 people · Surface water · Full report →
6 health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C

Franklin Water Dept

Serves 77,222 people · Surface water · Full report →
3 health-based violations in the last 5 years; 2 monitoring/reporting violations; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C

Cunningham Utility District

Serves 16,068 people · Surface water · Full report →
3 health-based violations in the last 5 years; 2 monitoring/reporting violations; 2 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C

Wilson Co Water & Wastewater

Serves 22,680 people · Surface water · Full report →
3 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C

Cumberland Utility District

Serves 14,085 people · Surface water · Full report →
2 health-based violations in the last 5 years; 22 monitoring/reporting violations; 2 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C

Savannah Valley U.D.

Serves 30,571 people · Surface water · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; 1 not yet resolved; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Lead 90th percentile below the action level (2025).
C

Hillsville Utility District

Serves 11,325 people · Surface water · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Lead 90th percentile below the action level (2025).
C

Camden Water Dept

Serves 10,013 people · Surface water · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Lead 90th percentile below the action level (2025).
C

Shelbyville Water System

Serves 36,813 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Lead 90th percentile below the action level (2025).
C

Jackson Water System

Serves 91,111 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Other PFAS above 2024 limits (rule proposed for repeal): PFHxS, Hazard Index; Lead 90th percentile below the action level (2025).
C

East Montgomery U.D.

Serves 18,382 people · Surface water · Full report →
2 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B

Tullahoma Utilities Authority

Serves 30,958 people · Surface water · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2025).
B

Manchester Water Department

Serves 24,975 people · Surface water · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2025).
B

Ocoee Utility District

Serves 21,082 people · Surface water · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2025).
B

Murfreesboro Water Department

Serves 114,331 people · Surface water · Full report →
1 health-based violation in the last 5 years; 3 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B

Savannah Utility Department

Serves 19,495 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Lead 90th percentile below the action level (2025).

Cities

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