Is Pierre Tap Water Safe? Quality Report

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

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	2008-01-01 → 2008-12-31
MR	Monitoring	Resolved	2008-01-01 → 2008-12-31
MR	Monitoring	Resolved	2008-01-01 → 2008-12-31
MR	Monitoring	Resolved	2008-01-01 → 2008-12-31
MR	Monitoring	Archived	1994-06-01 → 1994-06-30
MR	Monitoring	Archived	1994-06-01 → 1994-06-30
MR	Monitoring	Archived	1993-07-01 → 1993-07-31
MR	Monitoring	Archived	1976-07-01 → 1980-06-30
MR	Monitoring	Archived	1976-07-01 → 1980-06-30

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	1032 µg/L 79% of the EPA limit 1300 µg/L worst single sample: 1240 µg/L	69/69	SYR4	2014–2017
Lead	6 µg/L 40% of the EPA limit 15 µg/L worst single sample: 30 µg/L	69/69	SYR4	2014–2017
Total Haloacetic Acids (HAA5)	6.376 µg/L 11% of the EPA limit 60 µg/L worst single sample: 7.2 µg/L	17/17	SYR4	2012–2019
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
TTHM	5.96 µg/L 7.5% of the EPA limit 80 µg/L worst single sample: 6.29 µg/L	13/17	SYR4	2012–2019
Nitrate	1100 µg/L 11% of the EPA limit 10000 µg/L	4/72	SYR4	2017–2019
Lithium	25.2 µg/L No EPA limit set	4/4	UCMR-5	2025
Gross Alpha, Excl. Radon And U	3.7 pCi/L 25% of the EPA limit 15 pCi/L	1/1	SYR4	2014

33 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaCombined Radium (-226 And -228)Combined UraniumGross Beta Particle ActivityHfpo-DaNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfuna

Utility contact

Contact: ROBERT TOWNLEY
Phone: 6057737448
Email: [email protected]

Frequently asked questions about Pierre

Is Pierre tap water safe to drink?

EPA monitoring detected 8 contaminants in Pierre'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 Pierre's water?

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

How many people does Pierre serve?

Pierre reports serving 14,091 people in South Dakota, per its EPA record.

Has Pierre had any water quality violations?

The EPA has 9 violations on file for Pierre, 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.