Public water system record
Fontana Water Utility
Serves Fontana-on-Geneva Lake, Walworth County, WI · 1,839 people served
Federal records show 1 health-based violation and 9 monitoring/reporting issues for Fontana Water Utility in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 9
Key facts
- Fontana Water Utility draws water from 3 wells.
- Most recent enforcement action: boil water order by Wisconsin, November 1999.
- Record on file since 1994, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,085 unknown out of 2,396 service lines.
Check whether Fontana Water Utility 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Resolved |
|
Public Notice
OTHER
|
Oct 17, 2024 | Active |
|
Public Notice
OTHER
|
Oct 17, 2024 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2011 | Active |
Full record since 1994
EPA's records for Fontana Water Utility go back to 1994. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 85 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 7 | 72 |
| 2000s | 0 | 7 |
| 2010 to October 18, 2016 | 0 | 6 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 1 | 6 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 1999, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1999 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 1999 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1999 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Jul 1, 1998 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Apr 1, 1998 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Jan 1, 1998 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1994 | Resolved |
Enforcement actions
Wisconsin regulators issued 1 boil water order to Fontana Water Utility in 1999. The most recent was a boil water order in November 1999.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 19, 1999 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Fontana Water Utility draws water from 3 wells.
Annual water quality report
Fontana Water Utility 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 Wisconsin.
Certified drinking water labs by state EPA guidance for private wells