Is Cavalier City of Tap Water Safe? Quality Report

Water source: GWP
Ownership: Local government
Counties served: Pembina

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
MR	Monitoring	Resolved	2026-01-01
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
Other	Monitoring	Archived	1996-12-24 → 1997-01-24
MR	Monitoring	Archived	1996-12-01 → 1996-12-31
MR	Monitoring	Archived	1996-12-01 → 1996-12-31
MR	Monitoring	Archived	1996-12-01 → 1996-12-31
MR	Monitoring	Archived	1996-11-01 → 1996-11-30

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
Copper	647.4 µg/L 50% of the EPA limit 1300 µg/L worst single sample: 1140 µg/L	29/30	SYR4	2013–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	16/16	LCR	2025
Bromodichloromethane	4.888 µg/L No EPA limit set worst single sample: 4.96 µg/L	7/7	SYR4	2014–2019
Chloroform	13.538 µg/L No EPA limit set worst single sample: 13.7 µg/L	7/7	SYR4	2014–2019
Dibromochloromethane	1.768 µg/L No EPA limit set worst single sample: 1.78 µg/L	7/7	SYR4	2014–2019
Dichloroacetic Acid	7.429 µg/L No EPA limit set worst single sample: 7.69 µg/L	7/7	SYR4	2014–2019
TTHM	20.194 µg/L 25% of the EPA limit 80 µg/L worst single sample: 20.44 µg/L	7/7	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	14.294 µg/L 24% of the EPA limit 60 µg/L worst single sample: 14.87 µg/L	7/7	SYR4	2014–2019
Trichloroacetic Acid	5.421 µg/L No EPA limit set worst single sample: 5.49 µg/L	7/7	SYR4	2014–2019
Lead	1.322 µg/L 8.8% of the EPA limit 15 µg/L worst single sample: 1.33 µg/L	3/30	SYR4	2013–2019
Monobromoacetic Acid	2.56 µg/L No EPA limit set	1/7	SYR4	2014–2019

3 contaminants tested, none detected

BromoformDibromoacetic AcidMonochloroacetic Acid

Utility contact

Contact: KREIG, CASEY
Phone: 701-265-8800

Frequently asked questions about Cavalier City of

Is Cavalier City of tap water safe to drink?

EPA monitoring detected 11 contaminants in Cavalier 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 Cavalier City of's water?

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

How many people does Cavalier City of serve?

Cavalier City of reports serving 1,302 people in North Dakota, per its EPA record.

Has Cavalier City of had any water quality violations?

The EPA has 14 violations on file for Cavalier City of, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 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.