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Drinking water

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7/23/20 COVID-19 UPDATE: 

Badger Bounce Back Phase 2

Thank you for your patience during the COVID-19 public health emergency. As state agencies continue operations, please understand that most of our staff are continuing to telework and may have limited access to files and delayed online connectivity. The department is following the Badger Bounce Back [exit DNR] plan's phased approach to the resumption of activities that have been delayed or put on hold due to Safer at Home.

Now that the department has entered phase 2 of the plan, programs will continue the transition back to field work – including compliance inspections – that began in phase 1. In most cases, staff will continue to schedule pre-inspection calls with facilities to gather some of the information that would previously have been collected while on-site. These advance calls will also be used to discuss safety protocols for on-site visits that may be needed to complete all aspects of a compliance assessment.

Staff will keep their voicemails and out-of-office messages up to date and will respond as they are able.

For the most up-to-date information, please visit our COVID-19 information webpage. For program-specific information, please search keyword "COVID19."

Safe, clean drinking water is what we expect when we turn on our faucets. The DNR's Drinking Water and Groundwater Program manages activities that affect the safety, quality and availability of drinking water to protect public health and our water resources.

Drinking water quality data

What’s wrong with my drinking water?

Diagnose your water concerns based on the symptoms you notice about your drinking water

Plan submittal requirements

Submit plans for new construction or improvements relating to a public water system

Drinking Water Laws and Rules

View Wisconsin Administrative Codes that relate to private and public drinking water

Drinking water and groundwater publications

Drinking water, groundwater and wells publications

Laboratory testing

The Safe Drinking Water Act requires public water systems to test water supplies to protect public health

System owners & operators

Information for public water system owners and operators

Is my business a public water system?

Many small businesses, including hotels, restaurants and manufacturing facilities, are public water systems
Is my business a public water system?

Annual Drinking Water Report

Wisconsin Public Water Systems Annual Drinking Water Report
Annual Drinking Water Report

NR 809 safe drinking water standards update

A safe drinking water supply is a constant DNR priority for the protection of public health
NR 809 safe drinking water standards update

America's Water Infrastructure Act (AWIA)

AWIA was signed into law and is an amendment to the Safe Drinking Water Act
America's Water Infrastructure Act (AWIA)

Drinking Water & Groundwater Study Group

The group serves as a forum for the program to receive input from and provide information to stakeholder organizations
Drinking Water & Groundwater Study Group

Source water and wellhead protection

Source water protection helps prevent contaminants from entering sources of drinking water
Source water and wellhead protection

Lead and drinking water

Lead in drinking water can come from community water pipes as well as home plumbing
Lead and drinking water

PFAS contamination

Perfluoroalkyl and polyfluoroalkyl substances are a large group of human-made chemicals that may be in drinking water
PFAS contamination