Drinking water quality · 2024
· Verified
What's in Clarksville, TN tap water
17 contaminants were measured in the Clarksville, TN water system's 2024 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2024
- Contaminants measured
- 17
- Over federal limit
- 1
- Approaching the limit
- 1
- Worst contaminant
- Combined Radium
- Service area
- TN
Where your water comes from · EPA SDWIS
Clarksville, TN's drinking water comes from surface water, drawn from 1 source.
Source
- CUMBERLAND RVR
Treatment
- CUMBERLAND R.
- CUMBERLAND R. PLANT
Distribution
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.
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 12 pCi/LReported levelWhen samples were or will be taken | None set | At or above the limit |
+By source (3)— When samples were or will be taken, When all samples should have been taken, Number of samples taken/Number of samples required
| |||
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 12 pCi/LReported levelWhen samples were or will be taken | None set | Approaching the limit |
+By source (2)— When samples were or will be taken, Number of samples taken/Number of samples required
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1.06684 ug/LReported levelSystem-wide | 0 ug/LMCLG | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Radium 226 228 | 3.92 pCi/LReported levelSystem-wide | 0 pCi/LMCLG | Within the limit |
| Chromium | 4.24 ug/LReported levelSystem-wide | None set | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.901 mg/L90th percentileAt the tap | 1.3 mg/LMCLG | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 7.77 ug/L90th percentileAt the tap | 0 ug/LMCLG | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 1.96 ug/LReported levelSystem-wide | 0 ug/LMCLG | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 2.79 ug/LReported levelSystem-wide | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.023 mg/LReported levelSystem-wide | 2 mg/LMCLG | Within the limit |
| ManganeseA naturally occurring metal from soil and rock. | 200 ug/LReported levelSystem-wide | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 119000 ug/LReported levelSystem-wide | None set | Detected — no federal limit |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 0.00934 mg/LReported levelSystem-wide | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChloramineA longer-lasting disinfectant made by combining chlorine with ammonia. | 2.2 mg/LMaximumSystem-wide | 4 mg/LMRDLG | Within the limit |
Inorganic chemicals
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Benzo(a)pyrene | 20 ng/LMaximumSystem-wide | 0 ng/LMRDLG | Within the limit |
People also ask about Clarksville, TN's water
+Is Clarksville, TN tap water safe to drink in 2024?
The 2024 Consumer Confidence Report for the Clarksville, TN water utility lists 1 contaminant at or above the federal limit: Combined Radium. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in Clarksville, TN tap water?
17 contaminants were measured in Clarksville, TN's 2024 Consumer Confidence Report, spanning metals, radionuclides, and inorganic chemicals. 9 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in Clarksville, TN tap water?
One contaminant in Clarksville, TN's 2024 report sits at or above the federal limit: Combined Radium (2.4× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in Clarksville, TN tap water?
The contaminant with the highest measured value relative to its federal limit in the 2024 report is Combined Radium, at 2.4× the federal threshold. It belongs to the radionuclides family of contaminants.
+Are any contaminants in Clarksville, TN tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Gross Alpha. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Clarksville, TN's 2024 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 Clarksville, 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 2024 report; a new report will replace it once the utility publishes its next annual update.