Is Lancaster, City of Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Atchison

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
RPT	Monitoring	Unaddressed	2025-07-02
RPT	Monitoring	Unaddressed	2025-07-02
MR	Monitoring	Unaddressed	2024-02-21
MON	Monitoring	Resolved	2024-01-01 → 2024-01-31
MON	Monitoring	Resolved	2024-01-01 → 2024-01-31
MON	Monitoring	Resolved	2024-01-01 → 2024-01-31
MON	Monitoring	Resolved	2024-01-01 → 2024-01-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	26.75 µg/L No EPA limit set worst single sample: 30 µg/L	14/14	SYR4	2014–2019
Chloroform	81.5 µg/L No EPA limit set worst single sample: 88 µg/L	14/14	SYR4	2014–2019
Dibromochloromethane	8.435 µg/L No EPA limit set worst single sample: 8.5 µg/L	14/14	SYR4	2014–2019
Dichloroacetic Acid	27.2 µg/L No EPA limit set worst single sample: 35 µg/L	14/14	SYR4	2014–2019
TTHM	117 µg/L 146% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 130 µg/L	14/14	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	63.95 µg/L 107% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 88 µg/L	14/14	SYR4	2014–2019
Dibromoacetic Acid	2.94 µg/L No EPA limit set worst single sample: 3 µg/L	13/14	SYR4	2014–2019
Trichloroacetic Acid	34 µg/L No EPA limit set worst single sample: 49 µg/L	13/14	SYR4	2014–2019
Copper	24 µg/L 1.8% of the EPA limit 1300 µg/L worst single sample: 26 µg/L	11/11	SYR4	2014–2017
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	8/8	LCR	2023
Monochloroacetic Acid	9.725 µg/L No EPA limit set worst single sample: 12 µg/L	8/14	SYR4	2014–2019
Monobromoacetic Acid	3.38 µg/L No EPA limit set worst single sample: 4.4 µg/L	7/14	SYR4	2014–2019
Bromoform	0.9480 µg/L No EPA limit set worst single sample: 1 µg/L	5/14	SYR4	2014–2019
Lead	1.3 µg/L 8.7% of the EPA limit 15 µg/L	2/11	SYR4	2014–2017

Utility contact

Contact: ARMSTRONG, KASEE
Phone: 913-370-4737
Email: [email protected]

Frequently asked questions about Lancaster, City of

Is Lancaster, City of tap water safe to drink?

EPA monitoring detected 14 contaminants in Lancaster, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Lancaster, City of's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Lancaster, City of serve?

Lancaster, City of reports serving 248 people in Kansas, per its EPA record.

Has Lancaster, City of had any water quality violations?

The EPA has 32 violations on file for Lancaster, City of, of which 0 are health-based (a contaminant limit or required treatment was breached) and 3 remain open. The rest are monitoring or reporting failures.

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.