Is Frankfort, IN Tap Water Safe? Quality & Contaminants

What was found in Frankfort'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.

Contaminant	Level vs EPA limit	Suppliers	Source
Fluoride	924 µg/L 23% of the EPA limit 4000 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017 Highest in the city: 1716 µg/L — COUNTRY ESTATES MOBILE HOME PARK · 90 people · 2019	3/3	SYR4
Nitrate	1223.5 µg/L 12% of the EPA limit 10000 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017	1/3	SYR4
Nitrate-Nitrite	654 µg/L 6.5% of the EPA limit 10000 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2019	1/3	SYR4
Copper	418.4 µg/L 32% of the EPA limit 1300 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017	3/3	SYR4
Barium	380.5 µg/L 19% of the EPA limit 2000 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017	3/3	SYR4
TTHM	61.05 µg/L 76% of the EPA limit 80 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2019	2/3	SYR4
Total Haloacetic Acids (HAA5)	38.58 µg/L 64% of the EPA limit 60 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2019	1/3	SYR4
Chloroform	8.54 µg/L No EPA limit set Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2015	1/3	SYR4
Bromodichloromethane	7.8 µg/L No EPA limit set Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2015	1/3	SYR4
Chromium	3 µg/L 3% of the EPA limit 100 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017 Highest in the city: 6.75 µg/L — COUNTRY ESTATES MOBILE HOME PARK · 90 people · 2019	2/3	SYR4
Arsenic	1.51 µg/L 15% of the EPA limit 10 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017 Highest in the city: 3.58 µg/L — COUNTRY ESTATES MOBILE HOME PARK · 90 people · 2019	2/3	SYR4
Lead	3.1 µg/L 21% of the EPA limit 15 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017	3/3	SYR4
Dibromochloromethane	2.93 µg/L No EPA limit set Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2015	1/3	SYR4
Gross Alpha, Excl. Radon And U	1.9645 pCi/L 13% of the EPA limit 15 pCi/L Highest in the city: COUNTRY ESTATES MOBILE HOME PARK · 90 people · 2017	1/3	SYR4
Selenium	1.1 µg/L 2.2% of the EPA limit 50 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017	1/3	SYR4
Combined Radium (-226 And -228)	0.4800 pCi/L 9.6% of the EPA limit 5 pCi/L Highest in the city: COUNTRY ESTATES MOBILE HOME PARK · 90 people · 2017	1/3	SYR4
Cadmium	0.4000 µg/L 8% of the EPA limit 5 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017	1/3	SYR4
Mercury	0.2000 µg/L 10% of the EPA limit 2 µg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2017	1/3	SYR4
Lead	0.0011 mg/L 7.2% of the EPA limit 0.0150 mg/L Main supplier: FRANKFORT WATER WORKS · 16,422 people · 2023 Highest in the city: 0.0043 mg/L — COUNTRY ESTATES MOBILE HOME PARK · 90 people · 2023	3/3	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 Frankfort

Supplier	Population served
FRANKFORT WATER WORKS	16,422
COUNTRY ESTATES MOBILE HOME PARK	90
TERRACE HILLS MHC	26

Frequently asked questions about Frankfort tap water

Is Frankfort tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Frankfort. 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 Frankfort?

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

What contaminants are in Frankfort's water?

The contaminants EPA monitoring detected in Frankfort include Fluoride, Nitrate, Nitrate-Nitrite, Copper, 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.