Public Water System: Mendota Mental Health Inst's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: WI1130235
Type: Community water system
EPA Region: 05
Primary Service Area: Institution
Primary Source: Ground water
Population Served: 2,787
Contact Information

This public water system services 1 municipality in 1 county.

We could not find test result data for Mendota Mental Health Inst.
However, this area is serviced by 72 or more other public water systems. Check your water bill to see which specific system applies. Here is a list of related systems:

See 62 more related public water systems »

Summary Results

A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

We couldn't find any records of contaminants exceeding the regulated limits in your water.

Other Water Contaminants Tested

The following contaminants were tested and within national EPA guidelines.

We couldn't find any records of contaminants in your water.

Lead and Copper Data

Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
60535319 lead 2017-06-01 2017-09-30 0.002mg/L
47862050 lead 2016-06-01 2016-09-30 0.004mg/L
44641062 lead 2015-06-01 2015-09-30 0.0029mg/L
38506022 lead 2014-06-01 2014-09-30 0.0054mg/L
37728493 lead 2013-06-01 2013-09-30 0.00063mg/L
34345175 lead 2012-07-01 2012-12-31 0.00018mg/L
34345172 lead 2012-01-01 2012-06-30 0.00062mg/L
32087617 lead 2011-06-01 2011-09-30 0.021mg/L
23848435 lead 2008-01-01 2008-12-31 0.0046mg/L


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2002-11-01 - 2002-11-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Returned to Compliance
2012-10-01 - N/A Lead and Copper Rule Lead Consumer Notice Lead and Copper Rule Returned to Compliance
2012-01-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
2012-01-01 - N/A Public Notice Rule Public Notification Violation for NPDWR Violation Public Notice Open
2014-01-01 - N/A Lead and Copper Rule Lead Consumer Notice Lead and Copper Rule Returned to Compliance

What My Water Data Means

Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.


The origin of's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?

The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.