STATE REPORT TN 11 ALERTS 152 HEALTH VIOLATIONS

Tennessee Water Quality & Safety Report

44 ZIP codes · 106 water systems · IPC plumbing code · Updated 2026-03-16

Data: EPA SDWIS, NWS, State plumbing boards, Rewiring America Last verified: 2026-03-16

44
ZIP Codes
106
Water Systems
33
ZIPs with Violations
11
Active Alerts
IPC
Plumbing Code

Overview

We track water quality, weather alerts, plumbing regulations, and energy rebates for 44 ZIP codes across Tennessee, covering 106 community water systems that serve approximately 4,089,988 people.

33 of 44 ZIP codes (75%) have recorded EPA violations. 152 health-based violations have been documented.

Active Weather Alerts

11 active alerts in Tennessee including 8 warnings. Severe weather can directly affect tap water quality — flooding, power outages, and infrastructure damage may lead to boil-water advisories.

AlertSeverityAreas
Tornado WatchExtremeMcMinn, TN; Monroe, TN; Polk, TN
Tornado WatchExtremeBledsoe, TN; Bradley, TN; Hamilton, TN; Marion, TN; Meigs…
Severe Thunderstorm WarningSevereCherokee, NC; Blount, TN; McMinn, TN; Monroe, TN; Polk, TN
Severe Thunderstorm WarningSevereBlount, TN; Claiborne, TN; Grainger, TN; Hancock, TN; Kno…
Severe Thunderstorm WarningSevereClaiborne, TN; Grainger, TN; Hancock, TN; Hawkins, TN; Le…

View all Tennessee alerts →

Plumbing Regulations

Tennessee follows the International Plumbing Code (2018 edition).

  • Plumbing code: IPC (2018)
  • Homeowner DIY: Allowed with permit
  • Water heater permit: Required
  • Annual backflow test: Required

Full Tennessee regulations →

Areas with Most Violations

ZIP CodeCitySafety ScoreViolationsHealth-BasedSystem
37349Manchester—2330MANCHESTER WATER DEPARTMENT
37110Mcminnville—7070WARREN COUNTY UTILITY DISTRICT
37064Franklin—3013FRANKLIN WATER DEPT
37160Shelbyville—3023SHELBYVILLE WATER SYSTEM
37660Kingsport—300KINGSPORT WATER DEPT
37813Morristown—270MORRISTOWN UTILITIES COMMISSION
37830Oak Ridge—224OAK RIDGE DEPT OF PUBLIC WORKS
37087Lebanon—1918LEBANON WATER SYSTEM
37201Nashville—180METRO WATER SERVICES
37040Clarksville—1615CLARKSVILLE WATER DEPARTMENT

Areas with No Violations

ZIP CodeCitySafety ScoreSystemPopulation
37121Mount Juliet—WEST WILSON UTILITY DISTRICT86,978
37303Athens—ATHENS UTILITIES BOARD25,851
37375Sewanee—SEWANEE UTILITY DISTRICT5,970
37501Memphis—MEMPHIS LIGHT, GAS, & WATER659,500
37716Clinton—ANDERSON COUNTY WATER AUTH25,700
37821Newport—NEWPORT UTILITIES BOARD34,925
37901Knoxville—KNOXVILLE UTILITIES BOARD - KUB254,671
38024Dyersburg—DYERSBURG WATER DEPT19,970
38053Millington—MILLINGTON WATER DEPT8,615
38237Martin—MARTIN WATER DEPT11,918

Lead & Copper

  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 0 ZIP codes (0%)
  • Moderate risk (Zone 2): 0 ZIP codes
  • Low risk (Zone 3): 0 ZIP codes

All 44 ZIP Codes in Tennessee

Data Sources

Updated daily.

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