Tap Water Quality Report
Tap water quality in CHATTANOOGA, Tennessee
Tap water in CHATTANOOGA, Tennessee receives a grade of C (78/100) from TapWaterSafety.org. It's served by 2 public water systems, primarily TENNESSEE AMERICAN WATER. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in CHATTANOOGA's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utilities serving CHATTANOOGA.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 27.5 ppb, 459x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 42.8 ppb, 285x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 21.7 ppb, 217x above the EWG health guideline of 0.1 ppb.
EPA compliance record
Official U.S. EPA records for TENNESSEE AMERICAN WATER (system ID TN0000107) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Water systems serving CHATTANOOGA
CHATTANOOGA is served by 2 public water systems. Click any utility to see its complete grade card and treatment plant contact info.
TENNESSEE AMERICAN WATER
- Haloacetic acids (HAA9) significantly above health guideline
- Total trihalomethanes (TTHMs) significantly above health guideline
- Haloacetic acids (HAA5) significantly above health guideline
EASTSIDE UTILITY DISTRICT
- Haloacetic acids (HAA9) significantly above health guideline
- Total trihalomethanes (TTHMs) significantly above health guideline
- Haloacetic acids (HAA5) significantly above health guideline
Recommended filters for CHATTANOOGA
Filters matched to the specific contaminants in CHATTANOOGA's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in CHATTANOOGA's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
29.8 ppb | 0.06 | — | — | — | — | — | 497× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
42.8 ppb | 0.15 | 80.0 | 100 | — | — | — | 285× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
21.7 ppb | 0.1 | 60.0 | 60 | — | — | — | 217× over |
| Bromodichloromethane Disinfection byproduct |
6.34 ppb | 0.06 | — | — | — | — | — | 106× over |
| Chloroform Disinfection byproduct |
31.8 ppb | 0.4 | — | — | — | — | — | 80× over |
| Trichloroacetic acid Disinfection byproduct |
3.44 ppb | 0.1 | — | — | — | — | — | 34× over |
| Dichloroacetic acid Disinfection byproduct |
3.4 ppb | 0.2 | — | — | — | — | — | 17× over |
| Dibromochloromethane Disinfection byproduct |
1.38 ppb | 0.1 | — | — | — | — | — | 14× over |
| Radium, combined (-226 and -228) Radiological |
0.61 pCi/L | 0.05 | 5.0 | — | — | — | — | 12× over |
| Chromium (hexavalent) Heavy metal |
0.0838 ppb | 0.02 | — | — | — | — | — | 4.2× over |
| Nitrate Inorganic |
0.357 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.5× over |
| Chlorate Disinfection byproduct |
128.1 ppb | 210.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.14 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Aluminum Heavy metal |
26.0 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Vanadium Other |
0.4 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.624 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.15 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
7.6 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
8.8 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0718 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.697 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from TENNESSEE AMERICAN WATER.