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Tap water quality report

Twin Lakes

EPA monitoring tested this supplier for 48 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

48
contaminants tested
13
detected
134
people served
38
health-based violations
Minnesota rankingsLead in MinnesotaPFAS in Minnesota
Water source
Ground water
Ownership
Local government
Counties served
Freeborn

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.

38
health-based violations
43
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Fluoride
1140 µg/L 28%
of the EPA limit 4000 µg/L
worst single sample: 1200 µg/L
33/33 SYR4 2012–2019
Copper
1846.5 µg/L 142%
of the EPA limit, at the 95th percentile of samples — 1300 µg/L
worst single sample: 1950 µg/L
10/10 SYR4 2014–2017
Gross Alpha, Excl. Radon And U
22.6 pCi/L 151%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 24 pCi/L
8/8 SYR4 2013–2019
Bromodichloromethane
2.655 µg/L
No EPA limit set
worst single sample: 2.7 µg/L
4/6 SYR4 2012–2018
Cyanide
1294 µg/L 647%
of the EPA limit, at the 95th percentile of samples — 200 µg/L
worst single sample: 1330 µg/L
4/13 SYR4 2012–2019
Chloroform
15 µg/L
No EPA limit set
 4/6 SYR4 2012–2018
Dichloroacetic Acid
10.835 µg/L
No EPA limit set
worst single sample: 11 µg/L
4/4 SYR4 2012–2018
Lead
2.78 µg/L 19%
of the EPA limit 15 µg/L
worst single sample: 2.9 µg/L
3/10 SYR4 2014–2017
Trichloroacetic Acid
4.01 µg/L
No EPA limit set
worst single sample: 4.1 µg/L
3/4 SYR4 2012–2018
Barium
326 µg/L 16%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Dibromoacetic Acid
1.1 µg/L
No EPA limit set
 1/4 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 1/1 LCR 2023
Monochloroacetic Acid
2.2 µg/L
No EPA limit set
 1/4 SYR4 2012–2018
35 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBenzeneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined UraniumDichloromethaneDibromochloromethaneEthylene DibromideEthylbenzeneMercuryMonobromoacetic AcidNitrate-NitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Phone
5078522155
Email
cityoftwinlakes@wctatel.net

Frequently asked questions about Twin Lakes

Is Twin Lakes tap water safe to drink?

EPA monitoring detected 13 contaminants in Twin Lakes'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 Twin Lakes's water?

EPA monitoring detected Fluoride, Copper, Gross Alpha, Excl. Radon And U, Bromodichloromethane, Cyanide, and others. The full list with the level and data source for each is above.

How many people does Twin Lakes serve?

Twin Lakes reports serving 134 people in Minnesota, per its EPA record.

Has Twin Lakes had any water quality violations?

The EPA has 43 violations on file for Twin Lakes, of which 38 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.