Public water system record
Fond Du Lac Waterworks
Serves Fond du Lac and Taycheedah, Fond du Lac County, WI · 44,303 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for Fond Du Lac Waterworks 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
- 3
Key facts
- Fond Du Lac Waterworks draws water from 16 wells.
- Most recent formal enforcement: compliance order (no penalty) by Wisconsin, December 2003.
- Record on file since 1984, with 22 health-based violations before October 19, 2016.
- Lead pipe inventory: 3,116 lead and 377 unknown out of 16,049 service lines.
Check whether Fond Du Lac Waterworks 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 |
|---|---|---|
|
Public Notice
OTHER
|
Oct 17, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
Full record since 1984
EPA's records for Fond Du Lac Waterworks go back to 1984. Before October 19, 2016 they list 22 health-based violations (20 resolved, 2 archived by EPA without a recorded fix) and 86 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 2 | 0 |
| 1990s | 10 | 27 |
| 2000s | 10 | 49 |
| 2010 to October 18, 2016 | 0 | 10 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began January 2008, Resolved.
Show all 22 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.7 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
|
Jan 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.6 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
Jan 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.1 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
|
Jan 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.1 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.2 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Jan 1, 2001 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 39 pCi/L, federal limit 15 pCi/L (2.6 times the limit)
|
Jan 1, 2001 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.2 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Jan 1, 2001 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 39 pCi/L, federal limit 15 pCi/L (2.6 times the limit)
|
Jan 1, 2001 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 2000 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jan 1, 2000 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.8 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 1999 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 31 pCi/L, federal limit 15 pCi/L (2.1 times the limit)
|
Jan 1, 1999 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 57 pCi/L, federal limit 15 pCi/L (3.8 times the limit)
|
Jan 1, 1998 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13.9 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
|
Jan 1, 1998 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 42 pCi/L, federal limit 15 pCi/L (2.8 times the limit)
|
Jan 1, 1997 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.3 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
Jan 1, 1997 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.1 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
Jan 1, 1996 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 40 pCi/L, federal limit 15 pCi/L (2.7 times the limit)
|
Jan 1, 1996 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.1 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 1995 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 34 pCi/L, federal limit 15 pCi/L (2.3 times the limit)
|
Jan 1, 1995 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 7, 1987 | Archived |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 1984 | Archived |
Enforcement actions
Wisconsin regulators took 1 formal enforcement action against Fond Du Lac Waterworks in 2003, filed as 15 records in EPA's data. The most recent was a compliance order (no penalty) in December 2003.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 2, 2003 | Wisconsin | Compliance order (no penalty) | 15 violations (15 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
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
Fond Du Lac Waterworks draws water from 16 wells. 1 smaller public system such as schools, businesses or campgrounds buys water from Fond Du Lac Waterworks.
Annual water quality report
Fond Du Lac Waterworks 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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