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Metropolitan Water Reclamation District of Greater Chicago
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What We Do
Protecting Water Quality
Wastewater Treatment
What happens at a water reclamation plant?
Fish Species in the Chicago Area Waterway System
Argonne partners with MWRD to study Chicago River microbe population
Nutrient Reduction Research
PFAS
Water Reuse
Reducing Flooding
Chicago Area Waterway System (CAWS)
Chicago Area Waterway System Operations
Lockport Powerhouse
Sidestream Elevated Pool Aeration (SEPA) Stations
Centennial Fountain
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Addison Creek Reservoir and Channel Improvements
Blue Island Public Library Green Roof
Golf Mill Stormwater Park
La Grange Park
Mount Prospect Stormwater Projects
Robbins Stormwater Park and Midlothian Creek Restoration Project
UIC Green Infrastructure Project
Harvey Central Park Stormwater Detention Basin
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Voluntary Flood-Prone Property Acquisition Program
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North Branch of the Chicago River
Poplar Creek
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Community Action
You Can Help Prevent Flooding and Protect Water Quality
Combined Sewer Overflow Notification
Flush With Care
Rain Barrels
Understanding Your Sewer
Native Landscaping
Protect the Pollinators
Trees/Restore the Canopy
Save the Monarchs
Go Easy on the Salt
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A How to Video on Submitting a Responsive Bid Response/Proposal Response
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Types of Goods and Services the District Typically Purchases
7 Easy Steps to Doing Business
The Three Vendor Registrations Required by the MWRD
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Operation and Maintenance Manual for Separate Sanitary Sewer Systems, MWRD, 1989
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Petition for Variance WMO-VP-17-01
Petition for Variance WMO-VP-21-01
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LT Rates 2025-2026-2027 (Hourly)
Non-Discharging Categorical Industrial User Certification Statement (EL 248)
2026-06-09
Facility Classification Questionnaire (FCQ)
2026-06-02
List_of_SIUs_June_2026
2026-06-01
List_of_LCIUs_and_TXEs_June_2026
2026-06-01
6-17-26 Civil Service Board Agenda
2026-06-10
2025 Actuarial Valuation of Retiree Health Care Benefits
2026-05-14
2025 Annual Comprehensive Financial Report - Retiree Health Care Trust Fund
2026-05-14
2025 Annual Comprehensive Financial Report
2026-05-14
4-15-26 Civil Service Board Meeting Minutes
2026-05-14
400 E. 130th Street, Chicago, Illinois
2026-05-14
Report No. 26-1 Odor Monitoring Program for 2025
2026-05-13
List_of_LCIUs_and_TXEs_May_2026
2026-05-06
List_of_SIUs_May_2026
2026-05-06
O'Brien Battery E Fact Sheet
2026-05-05
43_Urban Tree Stormwater Planter Box (Page 1) 04_24_2026.pdf
15_Vegetated Filter Strip (Flow-Through) Detail 04_24_2026.pdf
09_Permeable Pavers Detail 04_24_2026.pdf
06_Infiltration Trench Detail 04_24_2026.pdf
04_Drywell_Detail 04_24_2026.pdf
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