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Tap water quality report

Corydon, IN

EPA monitoring detected 13 contaminants across the 2 water suppliers serving Corydon. 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
14,773
people served
13
contaminants found
Indiana rankings Lead in Indiana PFAS in Indiana

What was found in Corydon'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
Nitrate
5440 µg/L 54%
of the EPA limit 10000 µg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2019
2/2 SYR4
Fluoride
1193.5 µg/L 30%
of the EPA limit 4000 µg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2019
2/2 SYR4
Copper
102.65000000000002 µg/L 7.9%
of the EPA limit 1300 µg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2017
Highest in the city: 202.60000000000008 µg/L — CORYDON WATER WORKS · 5,716 people · 2017
2/2 SYR4
TTHM
51.99999999999999 µg/L 65%
of the EPA limit 80 µg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2019
2/2 SYR4
Barium
14.9 µg/L 0.7%
of the EPA limit 2000 µg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2017
Highest in the city: 41.379999999999995 µg/L — CORYDON WATER WORKS · 5,716 people · 2018
2/2 SYR4
Total Haloacetic Acids (HAA5)
16.799999999999997 µg/L 28%
of the EPA limit 60 µg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2019
2/2 SYR4
Lead
3.8899999999999997 µg/L 26%
of the EPA limit 15 µg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2017
Highest in the city: 7.1450000000000005 µg/L — CORYDON WATER WORKS · 5,716 people · 2017
2/2 SYR4
Selenium
5.9 µg/L 12%
of the EPA limit 50 µg/L
Highest in the city: CORYDON WATER WORKS · 5,716 people · 2018
1/2 SYR4
Bromodichloromethane
1.68 µg/L
No EPA limit set
Highest in the city: CORYDON WATER WORKS · 5,716 people · 2018
1/2 SYR4
Dibromochloromethane
1.49 µg/L
No EPA limit set
Highest in the city: CORYDON WATER WORKS · 5,716 people · 2018
1/2 SYR4
Chloroform
1.28 µg/L
No EPA limit set
Highest in the city: CORYDON WATER WORKS · 5,716 people · 2018
1/2 SYR4
Bromoform
0.6000 µg/L
No EPA limit set
Highest in the city: CORYDON WATER WORKS · 5,716 people · 2018
1/2 SYR4
Lead
0.0014 mg/L 9.1%
of the EPA limit 0.0150 mg/L
Main supplier: SOUTH HARRISON WATER CORPORATION · 9,057 people · 2023
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 Corydon

SupplierPopulation served
SOUTH HARRISON WATER CORPORATION 9,057
CORYDON WATER WORKS 5,716

Frequently asked questions about Corydon tap water

Is Corydon tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Corydon. 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 Corydon?

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

What contaminants are in Corydon's water?

The contaminants EPA monitoring detected in Corydon include Nitrate, Fluoride, Copper, TTHM, Barium. 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.