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Tap water quality report

Columbia Power and Water Systems

EPA monitoring tested this supplier for 72 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
7
detected
84,617
people served
2
health-based violations
Tennessee rankingsLead in TennesseePFAS in Tennessee
Water source
Surface water
Ownership
Local government
Counties served
Maury

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

2
health-based violations
3
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1984-10-01 → 1985-09-30
MCL Health-based Archived 1984-07-01 → 1984-09-30
MR Monitoring Archived 1991-07-01 → 1991-07-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0032 µg/L 1/4 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
67.375 µg/L 84%
of the EPA limit 80 µg/L
worst single sample: 108 µg/L
192/192 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
49.135 µg/L 82%
of the EPA limit 60 µg/L
worst single sample: 88.6 µg/L
192/192 SYR4 2014–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Nitrate
631 µg/L 6.3%
of the EPA limit 10000 µg/L
 12/12 SYR4 2014–2019
Barium
22.93 µg/L 1.1%
of the EPA limit 2000 µg/L
worst single sample: 23 µg/L
2/2 SYR4 2014–2017
Atrazine
1.4 µg/L 47%
of the EPA limit 3 µg/L
 1/10 SYR4 2014–2019
65 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneFluorideHfpo-DaLassoMercuryNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HARDIN, JONATHAN
Phone
931-388-7646
Email
[email protected]

Frequently asked questions about Columbia Power and Water Systems

Is Columbia Power and Water Systems tap water safe to drink?

EPA monitoring detected 7 contaminants in Columbia Power and Water Systems's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Columbia Power and Water Systems's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Lead, Nitrate, Barium, and others. The full list with the level and data source for each is above.

How many people does Columbia Power and Water Systems serve?

Columbia Power and Water Systems reports serving 84,617 people in Tennessee, per its EPA record.

Has Columbia Power and Water Systems had any water quality violations?

The EPA has 3 violations on file for Columbia Power and Water Systems, of which 2 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.