Louisa, IA
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 Louisa in Iowa · Population: 10,710
TRI sites such as Tyson Fresh Meats Inc-Louisa County; Midamerican Energy-Louisa Generating Station; Trioak Foods LLC - Feed Mill; SDWIS systems such as WAPELLO MUNICIPAL WATER WORKS; COLUMBUS JUNCTION WATER SUPPLY; MORNING SUN WATER DEPARTMENT anchor Louisa, IA's EPA extract. Derived burden score 25/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Tyson Fresh Meats Inc-Louisa County; Midamerican Energy-Louisa Generating Station; Trioak Foods LLC - Feed Mill are among the largest Form R filers reporting in Louisa; no SDWIS system here carries an active health-based flag. No AQS county monitors report here.
Burden score 25/100 (Low 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 Louisa -- 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 Louisa, IA: EPA TRI 2023 reporting year
Same facilities, both years
-20.5%
2 facilities that filed in 2022 and 2023
Whole inventory
-20.5%
2.2 million lb → 1.7 million lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Louisa, IA's total reported releases fell from 2.2 million lb in 2022 to 1.7 million lb in 2023, based on EPA TRI filings.
- Louisa, IA's water releases fell from 1.7 million lb in 2022 to 1.3 million lb in 2023, based on EPA TRI filings.
- Louisa, IA's air releases fell from 55.6 thousand lb in 2022 to 45.5 thousand lb in 2023, based on EPA TRI filings.
- Louisa, IA's land releases fell from 352.0 thousand lb in 2022 to 324.6 thousand lb in 2023, based on EPA TRI filings.
Water Systems (4)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| WAPELLO MUNICIPAL WATER WORKS | 2,096 | 0 |
| COLUMBUS JUNCTION WATER SUPPLY | 1,830 | 0 |
| MORNING SUN WATER DEPARTMENT | 752 | 0 |
| GRANDVIEW MUNI WATER DEPT | 437 | 0 |
TRI Facilities (3)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Tyson Fresh Meats Inc-Louisa County | 7.4M lbs |
| 2 | Midamerican Energy-Louisa Generating Station | 2.5M lbs |
| 3 | Trioak Foods LLC - Feed Mill | 0 lbs |
Cities in Louisa (5)
Frequently Asked Questions
What is the environmental risk level in Louisa, Iowa? ▼
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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.