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Tap water quality report

Lexington, KY

EPA monitoring detected 17 contaminants across the 1 water supplier serving Lexington. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
669,042
people served
17
contaminants found
Kentucky rankings Lead in Kentucky PFAS in Kentucky

What was found in Lexington's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
1210 µg/L 30%
of the EPA limit 4000 µg/L
 1/1 SYR4
Nitrate
880 µg/L 8.8%
of the EPA limit 10000 µg/L
 1/1 SYR4
Nitrate-Nitrite
880 µg/L 8.8%
of the EPA limit 10000 µg/L
 1/1 SYR4
Copper
449 µg/L 35%
of the EPA limit 1300 µg/L
 1/1 SYR4
TTHM
120.4 µg/L 151%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Lead
104 µg/L 693%
of the EPA limit, in the worst sample — 15 µg/L
 1/1 SYR4
Total Haloacetic Acids (HAA5)
88.5 µg/L 148%
of the EPA limit, in the worst sample — 60 µg/L
 1/1 SYR4
Lithium
15 µg/L
No EPA limit set
 1/1 UCMR-5
Combined Radium (-226 And -228)
0.7180 pCi/L 14%
of the EPA limit 5 pCi/L
 1/1 SYR4
2,4-D
0.3000 µg/L 0.4%
of the EPA limit 70 µg/L
 1/1 SYR4
6:2 Fts
0.0111 µg/L
No EPA limit set
 1/1 UCMR-5
1,2-DIBROMO-3-CHLOROPROPANE
0.0100 µg/L 5%
of the EPA limit 0.2000 µg/L
 1/1 SYR4
Pfba
0.0052 µg/L
No EPA limit set
 1/1 UCMR-5
Pfpea
0.0052 µg/L
No EPA limit set
 1/1 UCMR-5
Pfhxa
0.0037 µg/L
No EPA limit set
 1/1 UCMR-5
PFBS
0.0036 µg/L
No EPA limit set
 1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 1/1 LCR
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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Lexington

SupplierPopulation served
KENTUCKY-AMERICAN WATER CO 669,042

Frequently asked questions about Lexington tap water

Is Lexington tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Lexington. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Lexington?

1 public water supplier report drinking-water monitoring for Lexington, Kentucky to the EPA. Each is listed above with its population served.

What contaminants are in Lexington's water?

The contaminants EPA monitoring detected in Lexington include Fluoride, Nitrate, Nitrate-Nitrite, Copper, TTHM. The full list, with the highest level found and the data source, is in the table above.

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.