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Tap water quality report

Winchester, KY

EPA monitoring detected 14 contaminants across the 2 water suppliers serving Winchester. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
37,189
people served
14
contaminants found
Kentucky rankings Lead in Kentucky PFAS in Kentucky

What was found in Winchester's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
1305 µg/L 33%
of the EPA limit 4000 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
1/2 SYR4
Nitrate
990 µg/L 9.9%
of the EPA limit 10000 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
1/2 SYR4
Nitrate-Nitrite
720 µg/L 7.2%
of the EPA limit 10000 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
1/2 SYR4
Copper
200 µg/L 15%
of the EPA limit 1300 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
2/2 SYR4
TTHM
93.29999999999998 µg/L 117%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
Highest in the city: 102 µg/L — EAST CLARK CO WATER DISTRICT · 7,366 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
68 µg/L 113%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
Highest in the city: 83.5 µg/L — EAST CLARK CO WATER DISTRICT · 7,366 people · 2019
2/2 SYR4
Barium
34.59999999999999 µg/L 1.7%
of the EPA limit 2000 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
1/2 SYR4
Lead
3.125 µg/L 21%
of the EPA limit 15 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
Highest in the city: 14.95 µg/L — EAST CLARK CO WATER DISTRICT · 7,366 people · 2019
2/2 SYR4
Lithium
9.06 µg/L
No EPA limit set
Highest in the city: EAST CLARK CO WATER DISTRICT · 7,366 people · 2025
1/2 UCMR-5
Gross Beta Particle Activity
3.9 pCi/L
No EPA limit set
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2014
1/2 SYR4
Gross Alpha, Excl. Radon And U
2.6 pCi/L 17%
of the EPA limit 15 pCi/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2014
1/2 SYR4
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2014
1/2 SYR4
Beryllium, Total
0.5500 µg/L 14%
of the EPA limit 4 µg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2019
1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: WINCHESTER MUNICIPAL UTILITIES · 29,823 people · 2025
2/2 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 95th percentile of the system's samples — 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 Winchester

SupplierPopulation served
WINCHESTER MUNICIPAL UTILITIES 29,823
EAST CLARK CO WATER DISTRICT 7,366

Frequently asked questions about Winchester tap water

Is Winchester tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Winchester. 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 Winchester?

2 public water suppliers report drinking-water monitoring for Winchester, Kentucky to the EPA. Each is listed above with its population served.

What contaminants are in Winchester's water?

The contaminants EPA monitoring detected in Winchester include Fluoride, Nitrate, Nitrate-Nitrite, Copper, TTHM. The full list, with the level at the main supplier 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.