Is Underwood City of Tap Water Safe? Quality Report

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

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
MCL	Health-based	Archived	1998-10-01 → 1998-10-31
MCL	Health-based	Archived	1998-10-01 → 1998-10-31
MCL	Health-based	Archived	1998-10-01 → 1998-10-31
MCL	Health-based	Archived	1998-09-01 → 1998-09-30
MCL	Health-based	Archived	1998-09-01 → 1998-09-30
MCL	Health-based	Archived	1998-09-01 → 1998-09-30
MCL	Health-based	Archived	1997-03-01 → 1997-03-31
MCL	Health-based	Archived	1997-03-01 → 1997-03-31
MCL	Health-based	Archived	1997-03-01 → 1997-03-31
TT	Health-based	Resolved	1994-07-01

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	795.05 µg/L 61% of the EPA limit 1300 µg/L worst single sample: 894 µg/L	30/30	SYR4	2013–2019
Bromodichloromethane	13.624 µg/L No EPA limit set worst single sample: 13.75 µg/L	25/25	SYR4	2013–2019
Chloroform	50.956 µg/L No EPA limit set worst single sample: 51.7 µg/L	25/25	SYR4	2013–2019
Dibromochloromethane	3.442 µg/L No EPA limit set worst single sample: 3.53 µg/L	25/25	SYR4	2013–2019
Dichloroacetic Acid	26 µg/L No EPA limit set worst single sample: 27 µg/L	25/25	SYR4	2013–2019
TTHM	65.262 µg/L 82% of the EPA limit 80 µg/L worst single sample: 67.17 µg/L	25/25	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	49.324 µg/L 82% of the EPA limit 60 µg/L worst single sample: 51.7 µg/L	25/25	SYR4	2013–2019
Trichloroacetic Acid	22.94 µg/L No EPA limit set worst single sample: 26.1 µg/L	25/25	SYR4	2013–2019
Lead	0.0026 mg/L 17% of the EPA limit 0.0150 mg/L	17/17	LCR	2025
Monochloroacetic Acid	4.384 µg/L No EPA limit set worst single sample: 4.48 µg/L	9/25	SYR4	2013–2019
Lead	4.4785 µg/L 30% of the EPA limit 15 µg/L worst single sample: 4.51 µg/L	8/30	SYR4	2013–2019
Dibromoacetic Acid	1.1195 µg/L No EPA limit set worst single sample: 1.13 µg/L	4/25	SYR4	2013–2019

2 contaminants tested, none detected

BromoformMonobromoacetic Acid

Utility contact

Contact: WHEBBE, JORDYN
Phone: 701-442-5481
Email: [email protected]

Frequently asked questions about Underwood City of

Is Underwood City of tap water safe to drink?

EPA monitoring detected 12 contaminants in Underwood 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 Underwood City of's water?

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

How many people does Underwood City of serve?

Underwood City of reports serving 778 people in North Dakota, per its EPA record.

Has Underwood City of had any water quality violations?

The EPA has 18 violations on file for Underwood City of, of which 10 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.