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Illinois · EPA ECHO (national)

GRANITE CITY WWTP, CITY OF SSCS

Permit IL0033481

—
No waterway impact reported
Reported events
36
Total volume
9.4M gal
Reached waterways
0 (0%)
Reporting since
2024

What caused the overflows

Equipment Failure
18
Rainfall / Flooding
11
Other / Unknown
7

Reported overflow events (showing 36 of 36)

DateVolumeCauseReached waterReceiving water
Jun 21, 20261K galRainfall / Flooding——
Jun 8, 20265 galEquipment Failure——
Jun 8, 202610 galRainfall / Flooding——
May 6, 20261K galOther / Unknown—MESD ditch to Horsehoe Lake
Apr 28, 2026500 galOther / Unknown——
Apr 7, 20261 galOther / Unknown—N/A
Feb 18, 202640 galEquipment Failure——
Feb 14, 202620 galEquipment Failure——
Feb 14, 202620 galEquipment Failure——
Jan 28, 2026200 galOther / Unknown——
Dec 11, 202550 galOther / Unknown——
Dec 3, 20250 galEquipment Failure—Mississippi River
Jul 24, 2025200 galEquipment Failure——
Jul 24, 2025200 galEquipment Failure——
Jul 21, 20252K galRainfall / Flooding——
Jul 7, 2025200 galEquipment Failure——
Jun 20, 2025200 galEquipment Failure——
May 23, 202550 galOther / Unknown——
May 17, 2025200 galEquipment Failure——
May 17, 2025200 galEquipment Failure——
May 17, 2025199 galEquipment Failure——
May 17, 2025200 galEquipment Failure——
May 17, 2025200 galEquipment Failure——
May 17, 2025200 galEquipment Failure——
May 9, 2025100 galRainfall / Flooding——
May 3, 2025300 galEquipment Failure——
Apr 25, 2025200 galEquipment Failure——
Apr 19, 2025200 galEquipment Failure——
Apr 4, 2025500 galRainfall / Flooding——
Apr 4, 2025500 galRainfall / Flooding——
Apr 4, 2025500 galRainfall / Flooding——
Apr 4, 20253.2M galRainfall / Flooding—To storm drain then to Mississippi River
Apr 4, 2025500 galRainfall / Flooding——
Apr 4, 20255.0M galRainfall / Flooding—To storm drain then to Mississippi River
Jan 30, 20251.2M galOther / Unknown—Chain of Rocks Canal
Nov 5, 2024—Rainfall / Flooding—Mississippi River

Source: EPA ECHO (national). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.