
Effingham, IL-(Effingham Radio)- On Monday, May 18, 2026, at 11:30 PM the Combined Sewer Overflow (CSO) discharged for 2.25 hours for a total flow of 0.290 million gallons (MG). It rained approximately 1.5 Inches over 0.50 hours to cause this discharge.
Total rainfall for the event was 2.53 inches.







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