Desoto, MS
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Desoto in Mississippi · Population: 188,598
TRI sites such as Ardagh Metal Beverage USA Inc Re: Olive Branch Facility; US Tva Southaven Combined Cycle Plant; Rite Hite Products Corp; SDWIS systems such as CITY OF SOUTHAVEN; CITY OF OLIVE BRANCH; CITY OF HERNANDO anchor Desoto, MS's EPA extract. Derived burden score 46/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Desoto include CITY OF OLIVE BRANCH; CITY OF HERNANDO; LEWISBURG WATER ASSOCIATION, while Ardagh Metal Beverage USA Inc Re: Olive Branch Facility leads reported TRI pounds among local Form R filers. AQS median AQI 47 / peak 136 in 2024.
Burden score 46/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Desoto -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Desoto, MS: EPA TRI 2023 reporting year
Same facilities, both years
-32.7%
10 facilities that filed in 2022 and 2023
Whole inventory
-33.0%
459.0 thousand lb → 307.7 thousand lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Desoto, MS's total reported releases fell from 457.1 thousand lb in 2022 to 307.7 thousand lb in 2023, based on EPA TRI filings.
- Desoto, MS's water releases rose from 1 lb in 2022 to 3.3 thousand lb in 2023, based on EPA TRI filings.
- Desoto, MS's land releases rose from 0 lb in 2022 to 2.8 thousand lb in 2023, based on EPA TRI filings.
- Desoto, MS's off-site transfers fell from 102.6 thousand lb in 2022 to 22.4 thousand lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 208 (57%) | 154 | 4 | 136 |
| 2023 | 122 (34%) | 231 | 7 | 134 |
| 2022 | 211 (58%) | 148 | 6 | 133 |
| 2021 | 228 (63%) | 135 | 1 | 136 |
| 2020 | 246 (67%) | 119 | 0 | 100 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Mississippi, see the EPA's AirNow.gov.
Water Systems (18)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF SOUTHAVEN | 56,000 | 0 |
| CITY OF OLIVE BRANCH | 54,025 | 5 |
| CITY OF HERNANDO | 14,457 | 3 |
| CITY OF HORN LAKE | 13,649 | 0 |
| HORN LAKE WATER ASSOCIATION | 12,735 | 0 |
| LEWISBURG WATER ASSOCIATION | 9,390 | 3 |
| WALLS WATER ASSN- LAKE FOREST | 9,298 | 0 |
| CITY OF HERNANDO-JAYBIRD | 6,750 | 3 |
| NESBIT WATER ASSOCIATION | 5,988 | 0 |
| EUDORA UTILITIES ASSOCIATION | 3,749 | 0 |
| WALLS WATER ASSOCIATION | 2,999 | 0 |
| DAYS WATER ASSOCIATION | 2,825 | 8 |
| BELMONT WATER ASSOCIATION | 2,719 | 0 |
| CITY OF HERNANDO - LAUGHTER | 2,521 | 3 |
| CITY OF HORN LAKE - TWIN LAKES | 1,948 | 0 |
| LEWISBURG -INGRAMS MILL NORTH | 1,067 | 3 |
| COUNTRY HAVEN MOBILE HOME PARK | 829 | 2 |
| CITY OF HORN LAKE - HOLLY HILLS | 729 | 0 |
TRI Facilities (16)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Ardagh Metal Beverage USA Inc Re: Olive Branch Facility | 897.1K lbs |
| 2 | US Tva Southaven Combined Cycle Plant | 451.0K lbs |
| 3 | Rite Hite Products Corp | 112.9K lbs |
| 4 | Sxp Schulz Xtruded Products LP | 98.9K lbs |
| 5 | Plaskolite South LLC | 49.0K lbs |
| 6 | Evercompounds LLC | 33.8K lbs |
| 7 | Niteo Products Llc. | 30.4K lbs |
| 8 | Abb Installation Products Inc | 16.9K lbs |
| 9 | Bpi Coating Solutions LLC | 10.9K lbs |
| 10 | Mueller Steamline Co- H & C Flex | 1.4K lbs |
| 11 | Tri-State Ready-Mix Plant 22 | 62 lbs |
| 12 | Helmitin Inc | 15 lbs |
| 13 | Mmc Materials Inc - Horn Lake | 5 lbs |
| 14 | Mmc Materials Inc Hernando Temp Site | 1 lbs |
| 15 | Mmc Materials Inc - Nesbit Road | 0 lbs |
| 16 | Delta Industries Inc - Hernando - Plant 27 | 0 lbs |
Cities in Desoto (6)
Frequently Asked Questions
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.