Public water system record
Norris Inc
On record as serving Mukwonago, Waukesha County, WI · Serves 141 people
Federal records show 2 health-based violations and 87 monitoring/reporting issues for Norris Inc in the last ten years, including an unresolved Groundwater Rule violation.
System profile
Source water
Groundwater
ZIP
53149
EPA system ID
WI2680246
- Health-based violations, last 10 years
- 2
- Resolved
- 1
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 87
Key facts
- Norris Inc draws water from 2 wells.
- Most recent enforcement action: boil water order by Wisconsin, June 1999.
- Record on file since 1992, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 13 service lines.
Check whether Norris Inc 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 20, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Apr 1, 2021 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Radium-228
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Radium-226
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Radium-226
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Radium-228
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Radium-226
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Radium-228
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1992
EPA's records for Norris Inc go back to 1992. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 112 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 108 |
| 2000s | 1 | 2 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 3 |
| 2020s | 2 | 84 |
Most recent health-based violation before October 19, 2016: Total Coliform, began April 2006, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1999 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1994 | Resolved |
Enforcement actions
Wisconsin regulators issued 4 boil water orders to Norris Inc between 1988 and 1999. The most recent was a boil water order in June 1999.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 23, 1999 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
| Jul 20, 1994 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
| Jun 29, 1994 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
| Sep 30, 1988 | Wisconsin | Boil water order | 1 violation |
What the violations mean
Groundwater Rule
2 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Norris Inc draws water from 2 wells.
Annual water quality report
Norris Inc 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 Norris Inc 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