Mississippi
DeSoto County drinking water quality
24 active public water systems serve 204,561 people in DeSoto County. 8 are compliant, 16 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
19 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
City of Southaven Southaven |
56,000 | 0 | 0 | |
|
City of Olive Branch Olive Branch |
54,025 | 1 | 0 | |
|
City of Hernando Hernando |
14,457 | 2 | 0 | |
|
City of Horn Lake Horn Lake |
13,649 | 0 | 0 | |
|
Horn Lake Water Association |
12,735 | 1 | 0 | |
|
Lewisburg Water Association |
9,390 | 2 | 0 | |
|
Walls Water Assn Lake Forest |
9,298 | 1 | 0 | |
|
City of Hernando-Jaybird |
6,750 | 4 | 0 | |
|
Nesbit Water Association |
5,988 | 1 | 0 | |
|
Eudora Utilities Association |
3,749 | 0 | 0 | |
|
Walls Water Association |
2,999 | 2 | 0 | |
|
Days Water Association |
2,825 | 4 | 0 | |
|
Belmont Water Association |
2,719 | 0 | 0 | |
|
City of Hernando Laughter Hernando |
2,521 | 4 | 0 | |
|
City of Horn Lake Twin Lakes |
1,948 | 1 | 0 | |
|
Lewisburg -Ingrams Mill North |
1,067 | 1 | 0 | |
|
Country Haven Mobile Home Park |
829 | 2 | 1 | |
|
Buena Vista Lakes |
768 | 3 | 0 | |
|
City of Horn Lake Holly Hills |
729 | 1 | 0 |
Non-community systems (5: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
ON the Fly Hernando |
1,250 | 0 | 0 | |
|
Dollar General #16430 (cockrum) Hernando |
375 | 0 | 0 | |
|
Hernando Point Recreation Area |
216 | 0 | 0 | |
|
Arkabutla North Campground |
174 | 0 | 0 | |
|
C-You Hernando |
100 | 2 | 0 |
Inactive systems (29, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Mississippi records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.