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Rosalia, KS

EPA monitoring detected 14 contaminants across the 2 water suppliers serving Rosalia. 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
1,495
people served
14
contaminants found
Kansas rankings Lead in Kansas PFAS in Kansas

What was found in Rosalia'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
Copper
437.5 µg/L 34%
of the EPA limit 1300 µg/L
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2018
2/2 SYR4
Total Haloacetic Acids (HAA5)
55.1 µg/L 92%
of the EPA limit 60 µg/L
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
TTHM
44 µg/L 55%
of the EPA limit 80 µg/L
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
Dichloroacetic Acid
37 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
Chloroform
33 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
Trichloroacetic Acid
16 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
Bromodichloromethane
10 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
Lead
9.35 µg/L 62%
of the EPA limit 15 µg/L
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2018
2/2 SYR4
Monochloroacetic Acid
6.37 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
Dibromochloromethane
4.105 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
2/2 SYR4
Dibromoacetic Acid
2.25 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
Highest in the city: 3.5 µg/L — PUBLIC WHOLESALE WSD 8 · 1 people · 2019
2/2 SYR4
Monobromoacetic Acid
2.16 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
Highest in the city: 2.54 µg/L — PUBLIC WHOLESALE WSD 8 · 1 people · 2019
2/2 SYR4
Bromoform
0.8470 µg/L
No EPA limit set
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2019
1/2 SYR4
Lead
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
Main supplier: BUTLER CO RWD 3 · 1,494 people · 2024
Highest in the city: 0.0062 mg/L — PUBLIC WHOLESALE WSD 8 · 1 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 Rosalia

SupplierPopulation served
BUTLER CO RWD 3 1,494
PUBLIC WHOLESALE WSD 8 1

Frequently asked questions about Rosalia tap water

Is Rosalia tap water safe to drink?

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

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

What contaminants are in Rosalia's water?

The contaminants EPA monitoring detected in Rosalia include Copper, Total Haloacetic Acids (HAA5), TTHM, Dichloroacetic Acid, Chloroform. 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.