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Drinking Water

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    Submittal requirements by project type

    Common project document definitions/expectations:Cover letters should provide a general description of the need for the project and proposed scope of work. Cover letters may address previous project approvals or prior work done that is associated…

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    Public water system plan review

    Chapter NR 108, Wis. Adm. Code, allows the DNR up to 90 days to approve, return or deny submitted plans for new construction or improvements relating to a public water system. Average Review Process Timeframes Water Mains: 55-65 days All other…

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    Laboratory analysis slips

    The following are the most current sample lab analysis slips which are used for compliance with Safe Drinking Water Act regulations. Systems are mailed sampling slips as part of the normal mailing schedule. If you did not receive a slip or need…

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    Identify your water’s symptoms

    Diagnose your water concerns based on the symptoms you notice about your drinking water. Possible causes are listed with the most likely first. Get answers to these and more questions:

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    Drinking water & groundwater quality standards/advisory levels

    The Drinking Water & Groundwater Quality Standards/Advisory Levels [PDF] contains the tables:

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    Wisconsin's Capacity Development Program

    The Capacity Development Program aims to help public water systems strengthen their ability to consistently supply safe drinking water to their customers. The program focuses on assisting system owners and operators, particularly small water systems…

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    Instructions for creating and customizing a Consumer Confidence Report using DNR’s CCR generator

    Consumer Confidence Reports (CCR) are required by the U.S. Environmental Protection Agency (EPA). The CCR must be prepared and distributed by all Community Water Systems in order to provide information concerning water quality for the previous…

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