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Tap water quality report

ZIP 40280 — Louisville, KY

EPA monitoring across the 1 water supplier serving ZIP 40280 in Louisville, KY detected 17 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

1
water supplier
806,997
people served
17
contaminants found

What was found in ZIP 40280

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

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
1350 µg/L 14%
of the EPA limit 10000 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Nitrate-Nitrite
1330 µg/L 13%
of the EPA limit 10000 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Fluoride
1000 µg/L 25%
of the EPA limit 4000 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Chlorite
501 µg/L 50%
of the EPA limit 1000 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Copper
109.5 µg/L 8.4%
of the EPA limit 1300 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
TTHM
38.7 µg/L 48%
of the EPA limit 80 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
30.06 µg/L 50%
of the EPA limit 60 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Lead
12.465 µg/L 83%
of the EPA limit 15 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2017
1/1 SYR4
Gross Alpha, Excl. Radon And U
3.4 pCi/L 23%
of the EPA limit 15 pCi/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
1.64 pCi/L 33%
of the EPA limit 5 pCi/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
2,4-D
0.3000 µg/L 0.4%
of the EPA limit 70 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
Atrazine
0.2400 µg/L 8%
of the EPA limit 3 µg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2019
1/1 SYR4
PFOA
0.0075 µg/L
No EPA limit set
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2023
1/1 UCMR-5
Pfpea
0.0041 µg/L
No EPA limit set
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2023
1/1 UCMR-5
Pfhxa
0.0036 µg/L
No EPA limit set
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2023
1/1 UCMR-5
PFBS
0.0030 µg/L
No EPA limit set
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2023
1/1 UCMR-5
Lead
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
Main supplier: LOUISVILLE WATER COMPANY · 806,997 people · 2023
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 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 40280

SupplierStatePopulation served
LOUISVILLE WATER COMPANY KY 806,997

Frequently asked questions about ZIP 40280 tap water

Is the tap water in ZIP 40280 safe to drink?

EPA testing detected 17 contaminants across the water suppliers serving ZIP 40280. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 40280?

1 public water supplier report EPA drinking-water monitoring for ZIP 40280. Each is listed above with its population served.

What contaminants are in ZIP 40280's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Chlorite, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.