Is Aberdeen Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Brown

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
TT	Health-based	Archived	2026-02-01 → 2026-02-28
TT	Health-based	Archived	2026-02-01 → 2026-02-28
TT	Health-based	Resolved	2025-05-01 → 2025-05-31
TT	Health-based	Resolved	2025-05-01 → 2025-05-31
TT	Health-based	Resolved	2025-05-01 → 2025-05-31
TT	Health-based	Resolved	2024-12-01 → 2024-12-31
TT	Health-based	Resolved	2024-12-01 → 2024-12-31
TT	Health-based	Resolved	2024-12-01 → 2024-12-31
TT	Health-based	Resolved	2024-12-01 → 2024-12-31
TT	Health-based	Resolved	2024-12-01 → 2024-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfba	0.0081 µg/L	3/4	2023

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
TTHM	22.39 µg/L 28% of the EPA limit 80 µg/L worst single sample: 36.8 µg/L	128/128	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	28.12 µg/L 47% of the EPA limit 60 µg/L worst single sample: 32.8 µg/L	128/128	SYR4	2012–2019
Copper	170 µg/L 13% of the EPA limit 1300 µg/L worst single sample: 260 µg/L	61/61	SYR4	2014–2017
Lead	14.7 µg/L 98% of the EPA limit 15 µg/L worst single sample: 196 µg/L	61/61	SYR4	2014–2017
Lead	0.0030 mg/L 20% of the EPA limit 0.0150 mg/L	16/16	LCR	2025
Lithium	100 µg/L No EPA limit set	4/4	UCMR-5	2023

30 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaNitrateNitritePFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfuna

Utility contact

Contact: JIM ACKERMAN
Phone: 6056267074
Email: [email protected]

Frequently asked questions about Aberdeen

Is Aberdeen tap water safe to drink?

EPA monitoring detected 7 contaminants in Aberdeen'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 Aberdeen's water?

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

How many people does Aberdeen serve?

Aberdeen reports serving 27,989 people in South Dakota, per its EPA record.

Has Aberdeen had any water quality violations?

The EPA has 89 violations on file for Aberdeen, of which 41 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.