Drinking water quality · 2024
· Verified
What's in Clarksville, TN tap water
16 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
- 16
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Manganese
- 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
Historical readings · EPA Six-Year Review (2012–2019)
1 contaminant historically over EPA limits in Clarksville, TN
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
HAA5 worst: 2017 | 0.06 mg/L 1.0× | 0.06 mg/L | '14'15'16'17'18'19 |
TTHM worst: 2017 | 0.076 mg/L 95% | 0.08 mg/L | '14'15'16'17'18'19 |
NITRATE worst: 2016 | 0.548 mg/L within | 10 mg/L | '14'15'16'17'18'19 |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ManganeseA naturally occurring metal from soil and rock. | 200 ug/LReported levelSystem-wide | 150 ug/LMCLG | At or above the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.901 mg/L90th percentileAt the tap | 1.3 mg/LMCLG | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 2.79 ug/LReported levelSystem-wide | 50 ug/LMCLG | Within the limit |
| Chromium, TotalTotal chromium — the sum of all chromium forms, from natural deposits and industrial discharge. | 1.08–4.24 ug/LRangeSystem-wide | 100 ug/LMCLG | 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 |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 0–0.00934 mg/LRangeSystem-wide | 5 mg/LMCLG | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0.194–1.96 ug/LRangeSystem-wide | 0 ug/LMCLG | Detected — no federal 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 | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 119000 ug/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/LReported levelSystem-wide | 4 mg/LMRDLG | Within the limit |
Inorganic chemicals
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 10–20204Reported levelWhen all samples should have been taken | None set | Detected — no federal limit |
+By source (3)— When all samples should have been taken, When samples were or will be taken, Number of samples taken/Number of samples required
| |||
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 10–2024Reported levelWhen all samples should have been taken | None set | Detected — no federal limit |
+By source (3)— When all samples should have been taken, 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 | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Benzo(a)pyrene | 20 ng/LMaximumSystem-wide | 0 ng/LMRDLG | Detected — no federal 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: Manganese. 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?
16 contaminants were measured in Clarksville, TN's 2024 Consumer Confidence Report, spanning metals, radionuclides, and inorganic chemicals. 13 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: Manganese (1.3× 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 Manganese, at 1.3× the federal threshold. It belongs to the metals family of contaminants.
+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.