Public water system record

Land O Lakes Sanitary Dist

Serves an area of Vilas County, WI · 450 people served

Federal records show 5 health-based violations and 24 monitoring/reporting issues for Land O Lakes Sanitary Dist in the last ten years, including an unresolved Groundwater Rule violation.

  • WI7640112
  • LAND O LAKES
  • WI
  • 450 served

System profile

Source water Groundwater
ZIP 54540
EPA system ID WI7640112

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
4
Unresolved
1
Any acute record
No
Monitoring issues, last 10 years
24

Key facts

  • Land O Lakes Sanitary Dist draws water from 2 wells.
  • Record on file since 1991, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 176 service lines.

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Health-based violations

Since October 2016

Violation 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 Jan 16, 2026 Active No
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
210 Jul 12, 2023 Resolved No
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
210 Oct 2, 2021 Resolved No
Groundwater Rule
Treatment technique failure
140 Feb 2, 2020 Resolved No
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
210 Oct 2, 2018 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2024 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2023 Resolved
Public Notice
OTHER
Mar 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
Feb 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2020 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2020 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2020 Resolved
Public Notice
OTHER
Apr 1, 2020 Resolved
Groundwater Rule
OTHER
Mar 7, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2020 Resolved
Public Notice
OTHER
Feb 2, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2019 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2018 Resolved
Groundwater Rule
OTHER
Apr 24, 2016 Resolved
Groundwater Rule
OTHER
Apr 15, 2016 Resolved
Public Notice
OTHER
Apr 1, 2016 Resolved

Full record since 1991

EPA's records for Land O Lakes Sanitary Dist go back to 1991. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 74 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 3
2000s 1 62
2010 to October 18, 2016 1 9
October 19, 2016 to 2019 1 5
2020s 4 16

Most recent health-based violation before October 19, 2016: Stage 1 Disinfection Byproducts Rule, began October 2015, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
Oct 2, 2015 Resolved
Total Coliform
Contaminant limit exceeded
Jan 1, 2002 Resolved

What the violations mean

Stage 1 Disinfection Byproducts Rule

3 incidents

The system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule

Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk

Groundwater Rule

2 incidents

The 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

Land O Lakes Sanitary Dist draws water from 2 wells.

Annual water quality report

Land O Lakes Sanitary Dist 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 Land O Lakes Sanitary Dist 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.