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Tap water quality report

Brookings Municipal Utilities

EPA monitoring tested this supplier for 41 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

41
contaminants tested
7
detected
23,377
people served
3
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Local government
Counties served
Brookings

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.

3
health-based violations
8
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2020-07-01 → 2020-09-30
MCL Health-based Resolved 2020-07-01 → 2020-09-30
MCL Health-based Resolved 2020-07-01 → 2020-09-30
Other Monitoring Resolved 2003-07-01
Other Monitoring Resolved 2003-07-01
MR Monitoring Archived 1976-07-01 → 1980-06-30
MR Monitoring Archived 1976-07-01 → 1980-06-30
MR Monitoring Archived 1976-07-01 → 1976-07-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
82.7 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 90.1 µg/L
125/125 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
25.2 µg/L 42%
of the EPA limit 60 µg/L
worst single sample: 34.5 µg/L
121/121 SYR4 2012–2019
Copper
40 µg/L 3.1%
of the EPA limit 1300 µg/L
worst single sample: 70 µg/L
60/60 SYR4 2014–2017
Lead
8.92 µg/L 59%
of the EPA limit 15 µg/L
worst single sample: 36.8 µg/L
60/60 SYR4 2014–2017
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2023
Nitrate
1000 µg/L 10%
of the EPA limit 10000 µg/L
 8/12 SYR4 2017–2019
Lithium
37.4 µg/L
No EPA limit set
 4/4 UCMR-5 2024
34 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaCombined Radium (-226 And -228)Combined UraniumGross Alpha, Excl. Radon And UGross Beta Particle ActivityHfpo-DaNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfuna

Utility contact

Contact
ERIC WITT
Phone
6056926325
Email
[email protected]

Frequently asked questions about Brookings Municipal Utilities

Is Brookings Municipal Utilities tap water safe to drink?

EPA monitoring detected 7 contaminants in Brookings Municipal Utilities'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 Brookings Municipal Utilities'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 Brookings Municipal Utilities serve?

Brookings Municipal Utilities reports serving 23,377 people in South Dakota, per its EPA record.

Has Brookings Municipal Utilities had any water quality violations?

The EPA has 8 violations on file for Brookings Municipal Utilities, of which 3 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.