Tap Water Quality Report
Tap water quality in Memphis, Tennessee
Tap water in Memphis, Tennessee receives a grade of B (87/100) from TapWaterSafety.org. It's served by MEMPHIS LIGHT, GAS, & WATER. The most significant water quality concerns are: Total trihalomethanes (TTHMs) significantly above health guideline; Bromodichloromethane significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in Memphis's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving Memphis.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 6.75 ppb, 45x above the EWG health guideline of 0.15 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 2.46 ppb, 41x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 1.58 ppb, 26x above the EWG health guideline of 0.06 ppb.
EPA compliance record
Official U.S. EPA records for MEMPHIS LIGHT, GAS, & WATER (system ID TN0000450) 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.
Recommended filters for Memphis
Filters matched to the specific contaminants in Memphis's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts like TTHM. Look for NSF/ANSI 53 VOC or chloroform 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 Memphis'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 |
|---|---|---|---|---|---|---|---|---|
| Total trihalomethanes (TTHMs) Disinfection byproduct |
6.75 ppb | 0.15 | 80.0 | 100 | — | — | — | 45× over |
| Bromodichloromethane Disinfection byproduct |
2.46 ppb | 0.06 | — | — | — | — | — | 41× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
1.58 ppb | 0.06 | — | — | — | — | — | 26× over |
| Dibromochloromethane Disinfection byproduct |
1.74 ppb | 0.1 | — | — | — | — | — | 17× over |
| Radium, combined (-226 and -228) Radiological |
0.85 pCi/L | 0.05 | 5.0 | — | — | — | — | 17× over |
| Chloroform Disinfection byproduct |
2.5 ppb | 0.4 | — | — | — | — | — | 6.3× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
0.432 ppb | 0.1 | 60.0 | 60 | — | — | — | 4.3× over |
| Dichloroacetic acid Disinfection byproduct |
0.376 ppb | 0.2 | — | — | — | — | — | 1.9× over |
| Nitrate Inorganic |
0.206 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.5× over |
| Chromium (hexavalent) Heavy metal |
0.011 ppb | 0.02 | — | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
71.0 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Bromoform Disinfection byproduct |
0.046 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
40.2 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0095 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Manganese Heavy metal |
2.31 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Aluminum Heavy metal |
3.59 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.0563 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0357 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.165 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 MEMPHIS LIGHT, GAS, & WATER.
General Contact
Treatment Plant
ZIP codes served
Memphis's public water systems serve the following ZIP codes: