Water Withdrawal Assessment Tool

The Water Withdrawal Assessment Tool is intended for use prior to installing a new or increased large quantity withdrawal for the purpose of determining the potential impact to nearby water resources. Beginning February 28, 2006 all new withdrawals are prohibited from causing an adverse resource impact to the waters of the state. Use of the Water Withdrawal Assessment Tool is required prior to installation of any new or increased large quantity withdrawal.

Michigan's Water Withdrawal Assessment Tool

The Water Withdrawal Assessment Tool is the central component of the Water Withdrawal Assessment Process - the means by which Michigan regulates large quantity withdrawals in the management of our water resources. A brief summary of this process is available here:

Considering aquatic ecosystems: The basis for Michigan's new Water Withdrawal Assessment Process