Is Frontenac, KS Tap Water Safe? Quality & Contaminants

What was found in Frontenac'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	531 µg/L 13% of the EPA limit 4000 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019 Highest in the city: 544 µg/L — CRAWFORD CO RWD 1 · 430 people · 2019	2/2	SYR4
Nitrate	340 µg/L 3.4% of the EPA limit 10000 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019 Highest in the city: 420 µg/L — CRAWFORD CO RWD 1 · 430 people · 2019	2/2	SYR4
Copper	77.8 µg/L 6% of the EPA limit 1300 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019 Highest in the city: 296 µg/L — CRAWFORD CO RWD 1 · 430 people · 2019	2/2	SYR4
Barium	234 µg/L 12% of the EPA limit 2000 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	2/2	SYR4
Lithium	114 µg/L No EPA limit set Main supplier: FRONTENAC, CITY OF · 3,395 people · 2025	1/2	UCMR-5
TTHM	37.75 µg/L 47% of the EPA limit 80 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	1/2	SYR4
Bromoform	28.75 µg/L No EPA limit set Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	1/2	SYR4
Lead	1.9 µg/L 13% of the EPA limit 15 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019 Highest in the city: 16.6 µg/L — CRAWFORD CO RWD 1 · 430 people · 2019	2/2	SYR4
Dibromochloromethane	8.075 µg/L No EPA limit set Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	2/2	SYR4
Total Haloacetic Acids (HAA5)	7.6 µg/L 13% of the EPA limit 60 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	2/2	SYR4
Dibromoacetic Acid	6.975 µg/L No EPA limit set Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	2/2	SYR4
Combined Radium (-226 And -228)	6.6 pCi/L 132% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	2/2	SYR4
Selenium	4.78 µg/L 9.6% of the EPA limit 50 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	1/2	SYR4
Bromodichloromethane	1.675 µg/L No EPA limit set Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	2/2	SYR4
Arsenic	1.485 µg/L 15% of the EPA limit 10 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	1/2	SYR4
Chromium	1.29 µg/L 1.3% of the EPA limit 100 µg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	1/2	SYR4
Dichloroacetic Acid	0.7200 µg/L No EPA limit set Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019 Highest in the city: 0.8600 µg/L — CRAWFORD CO RWD 1 · 430 people · 2017	2/2	SYR4
Monobromoacetic Acid	0.7505 µg/L No EPA limit set Main supplier: FRONTENAC, CITY OF · 3,395 people · 2019	2/2	SYR4
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: FRONTENAC, CITY OF · 3,395 people · 2025 Highest in the city: 0.0021 mg/L — CRAWFORD CO RWD 1 · 430 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 Frontenac

Supplier	Population served
FRONTENAC, CITY OF	3,395
CRAWFORD CO RWD 1	430

Frequently asked questions about Frontenac tap water

Is Frontenac tap water safe to drink?

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

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

What contaminants are in Frontenac's water?

The contaminants EPA monitoring detected in Frontenac include Fluoride, Nitrate, Copper, Barium, Lithium. 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.