STATE REPORT TN 217 HEALTH VIOLATIONS

Tennessee Water: 1.3K Violations — 787 ZIPs

787 ZIP codes · 424 water systems · IPC plumbing code · Updated 2026-06-03

Data: EPA SDWIS, NWS, State plumbing boards, Rewiring America Last verified: 2026-06-03

787
ZIP Codes
424
Water Systems
337
ZIPs with Violations
IPC
Plumbing Code
C · 69
Avg Safety Score
42%
High Radon Risk (Zone 1)
#22
of 51 States
38%
ZIPs Rated A or B
43%
ZIPs with Violations
C
Tennessee average: 69/100 — ranked #22 of 51 states. 2 points above the national average (67). 38% of ZIP codes scored A or B.

If statewide compliance data is your starting point, Tennessee shows a below-average baseline — EPA monitoring records across utility districts document health-based violations in a significant share of the state's water systems, and the aggregate grade has held below the national median across recent tracking cycles.

Score Distribution

How Tennessee's 787 ZIP codes are distributed across safety grades.

151
A
149
B
304
C
182
D
1
F
85-10070-8455-6940-540-39

Home Safety Scores by State

Loading map…
F (0-49) D (50-64) C (65-74) B (75-84) A (85+)

Data: EPA SDWIS, FEMA NFIP, EPA Radon, USGS Earthquake Hazards, NIFC Wildfire • 2026-06-03

Top 10 Safest ZIP Codes in Tennessee

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 37301 AltamontGrundy 99 A
2 37383 SewaneeFranklin 99 A
3 37544 MemphisShelby 99 A
4 37756 HuntsvilleScott 99 A
5 37841 OneidaScott 99 A
6 38025 DyersburgDyer 99 A
7 38039 Grand JunctionHardeman 99 A
8 38044 HornsbyHardeman 99 A
9 38050 Maury CityCrockett 99 A
10 38054 MillingtonShelby 99 A

10 Lowest-Scoring ZIP Codes in Tennessee

#ZIP CodeCityCountyScoreGradeViolations
1 37013 AntiochDavidson 35 F 0
2 38569 LancasterSmith 40 D 0
3 38564 GranvilleJackson 40 D 0
4 38562 GainesboroJackson 40 D 22
5 38552 Chestnut MoundSmith 40 D 0
6 38488 TaftLincoln 40 D 0
7 38476 Primm SpringsHickman 40 D 0
8 38471 LuttsWayne 40 D 0
9 38459 FrankewingGiles 40 D 0
10 38455 ElktonGiles 40 D 0

County Rankings

Water quality breakdown by county. 95 counties with data in Tennessee.

Loading county map…
F (0-49) D (50-64) C (65-74) B (75-84) A (85+)

County-level aggregation of ZIP code safety scores • EPA SDWIS, FEMA NFIP, EPA Radon, USGS, NIFC

CountyAvg ScoreGradeZIPsBest ZIPWorst ZIP
Robertson 74 B 7 37146 (83) 37152 (63)
Davidson 60 C 48 37201 (69) 37013 (35)
Wilson 58 C 9 37012 (66) 37136 (40)
Williamson 52 D 11 37024 (63) 37069 (43)
Cheatham 60 C 6 37082 (76) 37143 (50)
Cannon 70 B 5 37357 (83) 37118 (63)
Bedford 55 C 8 37020 (69) 37063 (40)
Marshall 57 C 6 37091 (65) 37180 (53)
Sumner 62 C 11 37077 (81) 37138 (45)
Stewart 78 B 5 37028 (83) 37023 (63)
Hickman 53 D 10 37098 (70) 38476 (40)
Dickson 68 C 7 37181 (83) 37165 (53)
Smith 50 D 9 38563 (62) 38569 (40)
Montgomery 66 C 10 37191 (79) 37171 (53)
DeKalb 62 C 5 37166 (78) 38587 (53)
Houston 67 C 2 37061 (71) 37175 (63)
Trousdale 53 D 1 37074 (53) 37074 (53)
Macon 68 C 3 37186 (70) 37150 (65)
Rutherford 57 C 13 37127 (69) 37089 (40)
Perry 58 C 2 37097 (65) 37096 (51)
Humphreys 53 D 4 37134 (64) 38333 (40)
Warren 59 C 7 37378 (83) 38550 (53)
Lincoln 54 D 4 37144 (70) 38488 (40)
Maury 84 B 6 38402 (99) 38461 (66)
Grundy 78 B 6 37301 (99) 37313 (66)
Hamilton 69 C 35 37304 (81) 37396 (53)
McMinn 64 C 8 37329 (70) 37880 (53)
Franklin 86 A 12 37383 (99) 37376 (66)
Polk 70 B 8 37309 (83) 37369 (53)
Bradley 59 C 9 37310 (70) 37353 (40)
Monroe 60 C 6 37885 (70) 37314 (40)
Rhea 80 B 5 37321 (88) 37337 (66)
Meigs 70 B 1 37322 (70) 37322 (70)
Sequatchie 74 B 2 37327 (82) 37365 (66)
Marion 70 B 6 37397 (83) 37340 (53)
Coffee 60 C 5 37349 (69) 37389 (53)
Moore 51 D 2 37352 (62) 37359 (40)
Bledsoe 98 A 1 37367 (98) 37367 (98)
Shelby 92 A 79 37544 (99) 38018 (65)
Washington 55 C 12 37605 (66) 37690 (40)
Greene 59 C 9 37744 (70) 37711 (40)
Sullivan 59 C 14 37617 (65) 37699 (40)
Carter 74 B 6 37644 (82) 37694 (63)
Hawkins 59 C 7 37873 (70) 37765 (53)
Unicoi 78 B 2 37650 (78) 37692 (78)
Johnson 59 C 4 37683 (66) 37691 (53)
Blount 57 C 12 37777 (70) 37878 (40)
Anderson 55 C 8 37830 (69) 37705 (40)
Claiborne 50 D 11 37752 (70) 37867 (40)
Grainger 57 C 4 37861 (68) 37881 (40)
Union 55 C 6 37779 (70) 37848 (40)
Cocke 69 C 6 37822 (83) 37727 (55)
Campbell 76 B 6 37757 (95) 37819 (65)
Roane 55 C 7 37763 (69) 37845 (40)
Knox 64 C 36 37901 (70) 37806 (40)
Cumberland 89 A 8 38557 (99) 38553 (66)
Jefferson 64 C 5 37725 (70) 37871 (53)
Fentress 62 C 7 38504 (83) 38565 (53)
Sevier 71 B 8 37868 (81) 37764 (63)
Scott 78 B 6 37756 (99) 37892 (66)
Morgan 80 B 2 37887 (93) 37770 (66)
Loudon 67 C 3 37774 (70) 37772 (65)
Hamblen 56 C 8 37860 (66) 37891 (40)
Hancock 68 C 1 37869 (68) 37869 (68)
Crockett 80 B 9 38050 (99) 38337 (66)
Tipton 80 B 8 38049 (94) 38071 (66)
Lake 72 B 3 38079 (90) 38007 (60)
Hardeman 81 B 13 38039 (99) 38377 (66)
Fayette 81 B 8 38068 (99) 38076 (66)
Haywood 79 B 2 38012 (85) 38069 (73)
Dyer 84 B 7 38025 (99) 38030 (65)
Lauderdale 87 A 4 38040 (95) 38063 (78)
Henry 79 B 9 38231 (96) 38236 (66)
Carroll 81 B 14 38258 (99) 38390 (66)
Benton 81 B 3 38221 (83) 38320 (78)
Weakley 90 A 7 38230 (99) 38241 (66)
Obion 78 B 12 38260 (99) 38253 (65)
Madison 58 C 8 38392 (68) 38391 (40)
Hardin 71 B 5 38310 (83) 38365 (53)
Henderson 60 C 7 38371 (83) 38368 (53)
Chester 59 C 7 38340 (77) 38362 (53)
McNairy 62 C 10 38357 (83) 38393 (53)
Gibson 84 B 9 38338 (99) 38355 (66)
Decatur 71 B 5 38374 (83) 38328 (53)
Wayne 57 C 6 38463 (70) 38471 (40)
Giles 55 C 10 38472 (68) 38459 (40)
Lawrence 55 C 8 38469 (66) 38452 (40)
Lewis 68 C 1 38483 (68) 38483 (68)
Putnam 66 C 11 38544 (81) 38582 (53)
Overton 65 C 8 38541 (83) 38589 (53)
Pickett 58 C 2 38549 (63) 38577 (53)
Clay 71 B 3 38551 (78) 38588 (63)
White 63 C 1 38559 (63) 38559 (63)
Jackson 40 D 2 38562 (40) 38564 (40)
Van Buren 64 C 3 38583 (81) 38579 (53)

Most Common Contaminants in Tennessee

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Surface Water Treatment Rule Treatment Technique 220 441 No
Consumer Confidence Report Rule Reporting 109 184 Yes
Revised Total Coliform Rule Microbiological 86 99 No
Haloacetic Acids (HAA5) Disinfection Byproducts 79 181 Yes
Lead and Copper Rule Treatment Technique 54 61 No
Total Trihalomethanes (TTHM) Disinfection Byproducts 51 86 Yes
Stage 1 DBP Rule Treatment Technique 48 61 No
Lead Inorganic 20 20 No

Overview

We track water quality, weather alerts, plumbing regulations, and energy rebates for 787 ZIP codes across Tennessee, covering 424 community water systems that serve approximately 6,795,615 people.

337 of 787 ZIP codes (43%) have recorded EPA violations. 217 health-based violations have been documented.

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 Code City Safety Score Violations Health-Based System
37748 Harriman C 24 2 Harriman Utility Board
38562 Gainesboro D 22 10 Jackson County U.d. #4
38330 Dyer B 19 0 Dyer Water Department
38473 Minor Hill C 17 1 Minor Hill Water U.d.
37769 Lake City D 15 0 Anderson County Water Authority
37110 Mcminnville D 13 13 Warren County Utility District
37111 Mcminnville C 13 13 Warren County Utility District
37716 Clinton D 13 0 Anderson County Water Authority
37717 Clinton D 13 0 Anderson County Water Authority
37857 Rogersville D 13 4 Rogersville Water Department

Areas with No Violations

ZIP Code City Safety Score System Population
37011 Antioch D METRO WATER SERVICES 778,153
37013 Antioch F METRO WATER SERVICES 778,153
37014 Arrington D NOLENSVILLE-COLLEGE GROVE U.D. 32,793
37016 Auburntown C WOODBURY WATER SYSTEM 11,434
37018 Beechgrove D BELL BUCKLE WATER SYSTEM 2,633
37019 Belfast D LEWISBURG WATER SYSTEM 24,569
37022 Bethpage B Castalian Springs-bethpage U.d. 14,184
37023 Big Rock C North Stewart Utility District 5,983
37025 Bon Aqua D BON AQUA-LYLES U.D. 12,701
37026 Bradyville C WOODBURY WATER SYSTEM 11,434

Home Safety Score

Average Home Safety Score for Tennessee: C (69/100)

Lead & Copper

  • Average lead level (90th percentile): 0.0017 mg/L (EPA action level: 0.015 mg/L)
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 332 ZIP codes (42%)
  • Moderate risk (Zone 2): 217 ZIP codes
  • Low risk (Zone 3): 238 ZIP codes

ZIP Code Reports for Tennessee

Largest Communities

ZIP Code City Population Safety Grade Violations
37122 Mount Juliet 1,183,079 C 0
37135 Nolensville 1,162,218 C 0
37072 Goodlettsville 1,120,223 D 0
37027 Brentwood 1,092,563 D 4
37086 La Vergne 1,060,900 D 0
37221 Nashville 959,828 C 3
37138 Old Hickory 924,165 D 0
37207 Nashville 923,715 D 3
37216 Nashville 923,715 C 3
37015 Ashland City 917,394 C 2
37189 Whites Creek 878,210 D 0
37115 Madison 859,356 C 1
37201 Nashville 842,512 C 3
37202 Nashville 842,512 C 3
37203 Nashville 842,512 C 3
37204 Nashville 842,512 D 3
37205 Nashville 842,512 D 3
37206 Nashville 842,512 C 3
37208 Nashville 842,512 C 3
37209 Nashville 842,512 D 3

Lowest Safety Scores

ZIP Code City Score Grade Violations
37013 Antioch 35 F 0
37018 Beechgrove 40 D 0
37063 Fosterville 40 D 0
37072 Goodlettsville 40 D 0
37076 Hermitage 40 D 0

Highest Safety Scores

ZIP Code City Score Grade Violations
37301 Altamont 99 A 0
37383 Sewanee 99 A 0
37544 Memphis 99 A 0
37756 Huntsville 99 A 0
37841 Oneida 99 A 0

All 787 ZIP Codes in Tennessee

Data Sources

Updated daily.

Frequently Asked Questions

Is the water safe to drink in Tennessee?

Tennessee has 424 community water systems serving 6,795,615 people across 787 ZIP codes. There are 1,334 recorded violations, including 217 health-based. 337 of 787 ZIP codes have at least one violation.

What plumbing code does Tennessee follow?

Tennessee follows the IPC plumbing code. DIY plumbing work is allowed for homeowners.

What is the radon risk in Tennessee?

42% of ZIP codes in Tennessee fall in EPA Radon Zone 1 (highest risk).

Get safety alerts for Tennessee

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Violations found — check filter options Free tool — no phone call required.