About StormStore

StormStore is on a mission to attract economic development to Cook County suburbs while solving local flooding issues.


StormStore is a partnership between The Nature Conservancy (TNC) and the Metropolitan Planning Council (MPC). Our goal is to establish a marketplace for stormwater credit trading in Cook County, Illinois. We provide pro bono assistance to help development professionals, municipal staff, and community groups in Cook County take advantage of the benefits offered by stormwater credit trading.

Learn how StormStore benefits credit buyers and credit sellers.

The Backstory

StormStore began as idea in 2013, when Washington, DC announced the launch of the nation's first Stormwater Retention Credit Trading Program. In 2016, the partnership was established. In May 2020, the board of the Metropolitan Water Reclamation District of Greater Chicago unanimously voted to authorize a pilot stormwater volume trading program in two of Cook County's watershed areas.

StormStore Partners

Metropolitan Planning Council Logo

Key Collaborators

Metropolitan Water Reclamation District of Greater Chicago

MWRD is the agency authorized to manage the majority of Cook County's watershed areas. In this role, the agency manages and updates the Watershed Management Ordinance and permitting process. The partnership is grateful to the agency for the on-going collaboration, problem-solving, and dedication to improvement of the stormwater volume trading pilot.

Advisory Committee

StormStore is the result of nearly a decade of collaboration, research, and advocacy by a wide range of stakeholders in the Chicago region and beyond. We rely upon a core group of advisors to help us refine our work. A list of our current advisors can be located here.


Contact the StormStore team today!

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