Public water system record
Oak Grove
Serves Oak Grove, Anoka County, MN · 623 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Oak Grove in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Oak Grove draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by Minnesota, September 2012.
- Record on file since 2010, with 1 health-based violation before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 236 service lines.
Check whether Oak Grove 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Chlorine
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
Full record since 2010
EPA's records for Oak Grove go back to 2010. Before October 20, 2016 they list 1 health-based violation (1 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2010 to October 19, 2016 | 1 | 0 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 20, 2016: Arsenic, began July 2010, Resolved.
Show the health-based violation before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.0123 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2010 | Resolved |
Enforcement actions
Minnesota regulators took 2 formal enforcement actions against Oak Grove between 2010 and 2012. The most recent was a compliance order (no penalty) in September 2012.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 26, 2012 | Minnesota | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Nov 28, 2010 | Minnesota | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
Where the water comes from
Oak Grove draws water from 2 wells (1 of them for emergency, seasonal or other part-time use). It also buys water from Saint Francis.
Buys water from
- Saint Francis St. Francis, MN
Annual water quality report
Oak Grove 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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