States/MS

Sewer overflows in Mississippi

Sewer overflow record — reported spills, the worst utilities, and how often overflows reached waterways in Mississippi.

Reported events
239
Total volume
65.6M gal
Reached waterways
0(0%)
Latest event
Jun 24, 2026

Worst utilities in Mississippi

Ranked by number of reported overflow events.

#UtilityEventsVolumeReached water
1Great River - Gulf Park Estates6129.3M gal0
2Byram Sanitary Sewer Collection System547.6M gal0
3Marion Sanitary Sewer Collection System234.9M gal0
4Vicksburg Sanitary Sewer Collection System1921.4M gal0
5Helena Utility District14163K gal0
6Greenville Sanitary Sewer Collection System134K gal0
7Vancleve Sanitary Sewer Collection System6679K gal0
8Olive Branch Sanitary Sewer Collection System485K gal0
9Byram Sanitary Sewer Collection System440K gal0
10Picayune Sanitary Sewer Collection System3120K gal0
11Lucedale Sanitary Sewer Collection System32K gal0
12HCUA Tradition Sanitary Sewer Collection System3237K gal0
13Sherman Sanitary Sewer Collection System243K gal0
14Renova Sanitary Sewer Collection System2180K gal0
15Gautier Sanitary Sewer Collection System239K gal0
16BOGUE CHITTO SSCS255K gal0
17Poplarville Sanitary Sewer Collection System2150K gal0
18Bassfield Sanitary Sewer Collection System243K gal0
19HCUA Sanitary Sewer Collection System1120K gal0
20HUCA Sanitary Sewer Collection System10 gal0
21HCUA South Woolmarket Sanitary Sewer Collection Sy16 gal0
22Petal Sanitary Sewer Collection System10 gal0
23Gloster Sanitary Sewer Collection System118 gal0
24Hattiesburg North Sanitary Sewer Collection System12K gal0
25Summit South Sanitary Sewer Collection System112K gal0
26East Biloxi Sanitary Sewer Collection System1135K gal0
27Clinton Lovett Sanitary Sewer Collection System10 gal0
28Collins Sanitary Sewer Collection System12K gal0
29Hazlehurst Activated Sludge Sanitary Sewer Collect130K gal0
30Brookhaven Sanitary Sewer Collection System125K gal0

Biggest spills in Mississippi

The largest single reported overflow events.