Public water system record
Genesee Lake School South
Serves Oconomowoc, Waukesha County, WI · 230 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Genesee Lake School South in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Genesee Lake School South draws water from 1 well.
- Record on file since 2009, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 2 service lines.
Check whether Genesee Lake School South 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 |
|---|---|---|
|
Public Notice
OTHER
|
Oct 1, 2012 | Active |
Full record since 2009
EPA's records for Genesee Lake School South go back to 2009. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 5 | 4 |
| 2010 to October 18, 2016 | 0 | 2 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2009, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.02813 mg/L, federal limit 0.01 mg/L (2.8 times the limit)
|
Oct 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02653 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0247 mg/L, federal limit 0.01 mg/L (2.5 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02325 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
|
Jan 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.01 mg/L (9.3 times the limit)
|
Jan 1, 2009 | Resolved |
Where the water comes from
Genesee Lake School South draws water from 1 well.
Annual water quality report
Genesee Lake School South 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 Genesee Lake School South 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 Wisconsin.
Certified drinking water labs by state EPA guidance for private wells