Public water system record
Twin Lakes
Serves Twin Lakes, Freeborn County, MN · 134 people served
Federal records show 6 health-based violations and 1 monitoring/reporting issue for Twin Lakes in the last ten years. The most serious issue in this window was a Gross Alpha, Excl. Radon and U violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 6
- Resolved
- 4
- Unresolved
- 0
- Archived by EPA
- 2
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Twin Lakes draws water from 1 well.
- Highest measured level in the last 10 years: Gross Alpha, Excl. Radon and U, 18.3 pCi/L, federal limit 15 pCi/L (1.2 times the limit), 2019.
- Record on file since 1992, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 59 unknown out of 68 service lines.
Check whether Twin Lakes serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
340 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.3 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.7 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.5 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.7 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.3 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Jan 3, 2026 | Resolved |
Full record since 1992
EPA's records for Twin Lakes go back to 1992. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2010 to October 18, 2016 | 2 | 0 |
| October 19, 2016 to 2019 | 3 | 0 |
| 2020s | 3 | 1 |
Most recent health-based violation before October 19, 2016: Gross Alpha, Excl. Radon and U, began August 2011, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.7 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
Aug 24, 2011 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.7 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
Jul 1, 2011 | Resolved |
What the violations mean
Gross Alpha, Excl. Radon and U
6 incidentsTest results for Gross Alpha, Excl. Radon and U were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Twin Lakes draws water from 1 well.
Annual water quality report
Twin Lakes must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Twin Lakes for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Minnesota.
Certified drinking water labs by state EPA guidance for private wells