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Overflow Action Alert

The MWRD has issued an Overflow Action Day alert. Please limit water usage to absolute necessities. Visit our Overflow Action page for more information.


Metropolitan Water Reclamation District of Greater Chicago

The Metropolitan Water Reclamation District of Greater Chicago (MWRD) is pleased to offer EOS Arrow 200 global positioning units (GPS) to provide sewer system owners resources to begin mapping their sewer systems in GIS or improve their existing sewer system map. In return, sewer system owners will provide MWRD with their sanitary, storm, and combined sewer data. To obtain GPS equipment and related software at no cost, sewer system owners must enter into an Intergovernmental Agreement with MWRD.

To participate in the program, please email a letter of intent with all supporting documentation to

The template Intergovernmental Agreement and modifiable letter of intent are below. Any proposed alterations to the Intergovernmental Agreement will require additional District approval.

Letter of Intent

Intergovernmental Agreement