Drinking water quality · 2023
· Verified
What's in Nashville, TN tap water
84 contaminants were measured in the Nashville, TN water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 84
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- TN
state-level CCR
Where your water comes from · EPA SDWIS
Nashville, TN's drinking water comes from surface water, drawn from 2 sources.
Source
2surface water
- CUMBERLAND RIVER-PLANT 1 K.R. HARRINGTON
- CUMBERLAND RIVER-PLANT 2 OMOHUNDRO
Treatment
5treatment plants
- CUMB UD PLANT
- HARRINGTON PLNT
- OMOHUNDRO PLANT
- + 2 more
Distribution
32storage units
Source: EPA SDWIS facilities inventory. Methodology.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Treatment technique violationHealth-based2 violations on record · most recent Feb 2012resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.61–0.75 mg/LRangeSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.126–0.249 mg/LRangeSystem-wide | 10 mg/LMCL | Within the limit |
| Asbestos | Not detectedReported levelMetro Water Services | 7MCL | None detected |
| Cyanide | Not detected mg/LReported levelMetro Water Services | 0.2 mg/LMCL | None detected |
| Dibromoacetic acidA brominated haloacetic acid disinfection byproduct. | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Monobromoacetic acidA brominated haloacetic acid disinfection byproduct. | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | Not detected mg/LRangeSystem-wide | 1 mg/LMCL | None detected |
| ChlorideA naturally occurring salt compound. | 9.04–16.8 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| Dichloroacetic acidA haloacetic acid disinfection byproduct. | 4–5.7RangeSystem-wide | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 29.2–42.8 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| Trichloroacetic acidA haloacetic acid disinfection byproduct. | 3.4–5.6RangeSystem-wide | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chromium | 0.0016 mg/LReported levelMetro Water Services | 0.1 mg/LMCL | Within the limit |
| Alachlor | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Carbofuran | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Carbon Tetrachloride | Not detected mg/LReported levelSystem-wide | 0.005 mg/LMCL | None detected |
| Chlordane | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Chlorobenzene | Not detected mg/LReported levelSystem-wide | 0.1 mg/LMCL | None detected |
| Cis Dichloroethylene 12 | Not detected mg/LReported levelSystem-wide | 0.07 mg/LMCL | None detected |
| Deha | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Dehp | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Dichloroethane 12 | Not detected mg/LReported levelSystem-wide | 0.005 mg/LMCL | None detected |
| Dichloroethylene 11 | Not detected mg/LReported levelSystem-wide | 0.007 mg/LMCL | None detected |
| Dichloropropane 12 | Not detected mg/LReported levelSystem-wide | 0.005 mg/LMCL | None detected |
| Diquat | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Endothall | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Glyphosate | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Lindane | Not detected mg/LRangeSystem-wide | None set | None detected |
| Mcaa | Not detectedReported levelMetro Water Services | None set | None detected |
| Methoxychlor | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| O Dichlorobenzene | Not detected mg/LReported levelSystem-wide | 0.6 mg/LMCL | None detected |
| Oxamyl | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| P Dichlorobenzene | Not detected mg/LReported levelSystem-wide | 0.075 mg/LMCL | None detected |
| Pcb Total | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Pentachlorophenol | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Picloram | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Radium 226 228 | Not detected pCi/LReported levelMetro Water Services | 5 pCi/LMCL | None detected |
| Styrene | Not detected mg/LReported levelSystem-wide | 0.1 mg/LMCL | None detected |
| Trans Dichloroethylene 12 | Not detected mg/LReported levelSystem-wide | 0.1 mg/LMCL | None detected |
| Trichlorobenzene 124 | Not detected mg/LReported levelSystem-wide | 0.07 mg/LMCL | None detected |
| Trichloroethane 111 | Not detected mg/LReported levelSystem-wide | None set | None detected |
| Twofourd | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Vinyl Chloride | Not detected mg/LReported levelSystem-wide | 0.002 mg/LMCL | None detected |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0.0001 mg/LReported levelMetro Water Services | 0.01 mg/LMCL | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.0185–0.0194 mg/LRangeSystem-wide | 2 mg/LMCL | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.002 mg/LRangeSystem-wide | None set | Within the limit |
| Antimony | Not detected mg/LReported levelMetro Water Services | 0.006 mg/LMCL | None detected |
| Beryllium | Not detected mg/LReported levelMetro Water Services | 0.004 mg/LMCL | None detected |
| Cadmium | Not detected mg/LReported levelMetro Water Services | 0.005 mg/LMCL | None detected |
| IronA naturally occurring metal common in groundwater. | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| MercuryA toxic metal from erosion of natural deposits and industrial runoff. | Not detected mg/LRangeSystem-wide | 0.002 mg/LMCL | None detected |
| SeleniumA trace element from natural deposits and industrial discharge. | Not detected mg/LReported levelMetro Water Services | 0.05 mg/LMCL | None detected |
| Thallium | Not detected mg/LReported levelMetro Water Services | 0.002 mg/LMCL | None detected |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| AluminumA common element sometimes used as a treatment coagulant. | 0.016–0.0168 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | 0.0005–0.0019 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| NickelA metal from natural deposits and industrial discharge. | 0.001Reported levelMetro Water Services | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 7.8–11.3RangeSystem-wide | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BromoformA trihalomethane disinfection byproduct. | Not detectedReported levelMetro Water Services | None set | None detected |
| BromodichloromethaneA trihalomethane disinfection byproduct. | 1.7–3.8RangeSystem-wide | None set | Detected — no federal limit |
| ChloroformA trihalomethane formed when chlorine reacts with organic matter in water. | 8.3–12.8RangeSystem-wide | None set | Detected — no federal limit |
| DibromochloromethaneA trihalomethane disinfection byproduct. | 0.9RangeSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ColorA measure of visible tint in the water. | Not detectedReported levelMetro Water Services | None set | None detected |
| OdorA measure of detectable smell in the water. | Not detectedReported levelMetro Water Services | None set | None detected |
| AlkalinityA measure of the water's capacity to neutralize acids. | 54.4–86.9RangeSystem-wide | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 66.4–101.3RangeSystem-wide | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 6.91–7.21RangeSystem-wide | None set | Detected — no federal limit |
| TemperatureThe measured temperature of the water sample. | 6–27.7RangeSystem-wide | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 119–172 mg/LRangeSystem-wide | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | Not detected pCi/LReported levelMetro Water Services | 15 pCi/LMCL | None detected |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| 1,2,3-TCP | Not detectedReported levelSystem-wide | None set | None detected |
| AtrazineA widely used agricultural herbicide that reaches water through runoff. | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| Benzene | Not detected mg/LReported levelSystem-wide | 0.005 mg/LMCL | None detected |
| Benzo(a)pyrene | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| ChloroethaneA volatile organic compound used in some industrial processes. | Not detectedReported levelSystem-wide | None set | None detected |
| Chloromethane | Not detectedReported levelSystem-wide | None set | None detected |
| Dalapon | Not detected ug/LReported levelMetro Water Services | 200 ug/LMCL | None detected |
| Dichloromethane | Not detected mg/LReported levelSystem-wide | 0.005 mg/LMCL | None detected |
| Ethylbenzene | Not detected mg/LReported levelSystem-wide | 0.7 mg/LMCL | None detected |
| Simazine | Not detected mg/LReported levelMetro Water Services | None set | None detected |
| TetrachloroethyleneAn industrial solvent (PCE) used in dry cleaning and degreasing. | Not detected ug/LReported levelSystem-wide | None set | None detected |
| Toluene | Not detected mg/LReported levelSystem-wide | 1 mg/LMCL | None detected |
| TrichloroethyleneAn industrial solvent (TCE) used in metal degreasing. | Not detected ug/LReported levelSystem-wide | None set | None detected |
| XylenesA group of industrial solvents found in gasoline and paint. | Not detected ug/LReported levelSystem-wide | None set | None detected |
Source: Nashville, TN's 2023 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.
People also ask about Nashville, TN's water
+Is Nashville, TN tap water safe to drink in 2023?
Every one of the 84 contaminants measured in Nashville, TN's 2023 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Nashville, TN tap water?
84 contaminants were measured in Nashville, TN's 2023 Consumer Confidence Report, spanning other, metals, and vocs & pesticides. 33 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Nashville, TN's 2023 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Nashville, TN's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2023 report; a new report will replace it once the utility publishes its next annual update.
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