De Soto Parish, LA
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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for De Soto Parish in Louisiana · Population: 26,897
TRI sites such as International Paper Co - Mansfield Mill; Dolet Hills Power Station; North Louisiana Gas Plant; SDWIS systems such as NORTH DESOTO WATER SYSTEM; CITY OF MANSFIELD WATER SYSTEM; DESOTO PARISH WATER WORKS DISTRICT 1 anchor De Soto Parish, LA's EPA extract. Derived burden score 44/100 (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 De Soto Parish include CITY OF MANSFIELD WATER SYSTEM; DESOTO PARISH WATER WORKS DISTRICT 1; KEATCHIE WATER SYSTEM, while International Paper Co - Mansfield Mill leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 44/100 (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 De Soto Parish -- 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 De Soto Parish, LA: EPA TRI 2023 reporting year
Same facilities, both years
-7.4%
2 facilities that filed in 2022 and 2023
Whole inventory
-7.4%
4.7 million lb → 4.3 million lb, every facility that filed
- De Soto Parish, LA's total reported releases fell from 4.7 million lb in 2022 to 4.3 million lb in 2023, based on EPA TRI filings.
- De Soto Parish, LA's water releases fell from 107.1 thousand lb in 2022 to 83.7 thousand lb in 2023, based on EPA TRI filings.
- De Soto Parish, LA's air releases fell from 3.9 million lb in 2022 to 3.6 million lb in 2023, based on EPA TRI filings.
- De Soto Parish, LA's chemicals reported rose from 19 in 2022 to 20 in 2023, based on EPA TRI filings.
Water Systems (10)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| NORTH DESOTO WATER SYSTEM | 7,608 | 0 |
| CITY OF MANSFIELD WATER SYSTEM | 7,512 | 77 |
| DESOTO PARISH WATER WORKS DISTRICT 1 | 7,173 | 35 |
| KEATCHIE WATER SYSTEM | 4,446 | 70 |
| TOWN OF LOGANSPORT WATER SYSTEM | 2,448 | 54 |
| EAST DESOTO WATER SYSTEM | 1,455 | 55 |
| RAMBIN-WALLACE WATER SYSTEM | 1,161 | 0 |
| SOUTH DESOTO WATER SYSTEM | 963 | 131 |
| VILLAGE OF SOUTH MANSFIELD WATER SYSTEM | 933 | 18 |
| SHERWOOD APARTMENTS WATER SYSTEM | 60 | 2 |
TRI Facilities (3)
| # | Facility | Total Releases |
|---|---|---|
| 1 | International Paper Co - Mansfield Mill | 23.1M lbs |
| 2 | Dolet Hills Power Station | 2.1M lbs |
| 3 | North Louisiana Gas Plant | 5.9K lbs |
Cities in De Soto Parish (6)
Frequently Asked Questions
What is the environmental risk level in De Soto Parish, Louisiana? ▼
Are there Superfund sites in De Soto Parish? ▼
How many toxic release facilities are in De Soto Parish? ▼
What is the air quality in De Soto Parish? ▼
Is the drinking water safe in De Soto Parish? ▼
What environmental agencies cover De Soto Parish? ▼
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.