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Clean Watershed Needs Survey

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Environment, Great Lakes, and Energy

Clean Watershed Needs Survey

The Clean Watersheds Needs Survey (CWNS) hosted by the U.S. Environmental Protection Agency (EPA) helps determine resources needed to improve wastewater, stormwater, decentralized, and nonpoint source systems.

Data collection began February 28, 2023 and will conclude March 31, 2024.


Mark Conradi

In Michigan, EGLE will collect already completed planning/engineering documents from municipalities about wastewater system needs, break out the costs by type, and submit the results to EPA.

  • EPA reports the capital investment needs from the survey from all 50 states and territories in a formal report to congress.
  • The documented needs from the last survey in 2012 are currently being used to determine the allocation of funds to states for the Sewer Overflow and Stormwater Reuse Municipal Grants Program and could be used in future allotments of state revolving funds.
  • The survey will now officially include decentralized and nonpoint source needs.
  • Knowing the extent of needs within the state will help position Michigan in obtaining future federal monies.

EGLE is requesting that communities submit their capital improvement plans covering the next five to 20 years, with a goal to document as many capital needs as possible for the state. Although this is called a survey, EGLE is not requesting that communities do anything beyond submitting capital improvement plans that have already been completed. No additional effort will be needed, and participation will be paramount to determining the true needs of Michigan. Please use the link below to submit your capital improvement plan directly to EGLE for CWNS survey use. 

Submit Capital Improvement Plan for CWNS 2022


If you have any questions, please reach out to Mark Conradi and/or Luke Hurley.