Is Brown-Day-Marshall Rws Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Brown, Day, Marshall

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	2011-07-17
MR	Monitoring	Resolved	2011-07-17
MR	Monitoring	Resolved	2011-07-17
Other	Monitoring	Resolved	2003-07-01
Other	Monitoring	Resolved	2003-07-01

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	711.5 µg/L 55% of the EPA limit 1300 µg/L worst single sample: 970 µg/L	60/60	SYR4	2013–2019
Lead	13.045 µg/L 87% of the EPA limit 15 µg/L worst single sample: 22.9 µg/L	60/60	SYR4	2013–2019
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	12/12	LCR	2025
TTHM	4.315 µg/L 5.4% of the EPA limit 80 µg/L worst single sample: 4.98 µg/L	8/8	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	8.7165 µg/L 15% of the EPA limit 60 µg/L worst single sample: 8.79 µg/L	8/8	SYR4	2013–2019
Lithium	137 µg/L No EPA limit set	2/2	UCMR-5	2023
Barium	14 µg/L 0.7% of the EPA limit 2000 µg/L	1/1	SYR4	2013
Chromium	4.7 µg/L 4.7% of the EPA limit 100 µg/L	1/1	SYR4	2013
Fluoride	590 µg/L 15% of the EPA limit 4000 µg/L	1/1	SYR4	2019
Nitrite	30 µg/L 3% of the EPA limit 1000 µg/L	1/1	SYR4	2019
Selenium	0.7000 µg/L 1.4% of the EPA limit 50 µg/L	1/1	SYR4	2013

40 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBeryllium, TotalCadmiumCombined Radium (-226 And -228)Combined UraniumGross Alpha, Excl. Radon And UGross Beta Particle ActivityHfpo-DaMercuryNetfosaaNfdhaNmefosaaNitratePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaThallium, Total

Utility contact

Contact: DARIN ROEHR
Phone: 6054485417
Email: [email protected]

Frequently asked questions about Brown-Day-Marshall Rws

Is Brown-Day-Marshall Rws tap water safe to drink?

EPA monitoring detected 11 contaminants in Brown-Day-Marshall Rws'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 Brown-Day-Marshall Rws's water?

EPA monitoring detected Copper, Lead, Lead, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Brown-Day-Marshall Rws serve?

Brown-Day-Marshall Rws reports serving 5,673 people in South Dakota, per its EPA record.

Has Brown-Day-Marshall Rws had any water quality violations?

The EPA has 5 violations on file for Brown-Day-Marshall Rws, 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.