Marshall, 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 Marshall in Iowa · Population: 39,971
TRI sites such as Swift Pork; Diamond Vogel Inc.; Fisher Controls International LLC; SDWIS systems such as MARSHALLTOWN WATER WORKS; ACKLEY MUNICIPAL WATER WORKS; STATE CENTER MUNI WATER DEPT anchor Marshall, IA's EPA extract. Derived burden score 29/100 (Low 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 Marshall include HASTINGS WATER SUPPLY, while Swift Pork leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 29/100 (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 Marshall -- 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 Marshall, IA: EPA TRI 2023 reporting year
Same facilities, both years
-12.3%
5 facilities that filed in 2022 and 2023
Whole inventory
-12.3%
308.8 thousand lb → 270.9 thousand lb, every facility that filed
- Marshall, IA's total reported releases fell from 308.8 thousand lb in 2022 to 270.9 thousand lb in 2023, based on EPA TRI filings.
- Marshall, IA's water releases rose from 4 lb in 2022 to 21 lb in 2023, based on EPA TRI filings.
- Marshall, IA's air releases rose from 13.4 thousand lb in 2022 to 22.9 thousand lb in 2023, based on EPA TRI filings.
- Marshall, IA's off-site transfers fell from 295.4 thousand lb in 2022 to 248.0 thousand lb in 2023, based on EPA TRI filings.
Water Systems (23)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| MARSHALLTOWN WATER WORKS | 27,680 | 0 |
| ACKLEY MUNICIPAL WATER WORKS | 1,599 | 0 |
| STATE CENTER MUNI WATER DEPT | 1,411 | 0 |
| CLARKSVILLE WATER SUPPLY | 1,254 | 0 |
| LE GRAND WATER WORKS | 910 | 0 |
| CRESCENT WATER SUPPLY | 778 | 0 |
| MELBOURNE WATER SUPPLY | 765 | 0 |
| HOSPERS MUNICIPAL WATER DEPT | 718 | 0 |
| DUMONT WATER SUPPLY | 635 | 0 |
| NEW HARTFORD WATER SUPPLY | 570 | 0 |
| ALBION WATER DEPARTMENT | 448 | 0 |
| MARSHALLTOWN ESTATES | 382 | 0 |
| ANDREW WATER SUPPLY | 380 | 0 |
| MONDAMIN WATER SUPPLY | 339 | 0 |
| RHODES WATER SUPPLY | 271 | 0 |
| SILVER CITY WATER SUPPLY | 245 | 0 |
| LAUREL MUNICIPAL WATER WORKS | 220 | 0 |
| RANDOLPH WATER WORKS | 192 | 0 |
| HASTINGS WATER SUPPLY | 152 | 22 |
| SWALEDALE WATER SUPPLY | 144 | 0 |
| CLEMONS WATER SUPPLY | 140 | 0 |
| SQUAW VALLEY SOUTH SUBDIVISION | 105 | 0 |
| HANSELL WATER DEPARTMENT | 82 | 0 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Swift Pork | 9.2M lbs |
| 2 | Diamond Vogel Inc. | 5.5K lbs |
| 3 | Fisher Controls International LLC | 1.7K lbs |
| 4 | Lennox Industries Inc | 102 lbs |
| 5 | Forterra Concrete Products - Marshalltown | 0 lbs |
Cities in Marshall (8)
Frequently Asked Questions
What is the environmental risk level in Marshall, Iowa? ▼
Are there Superfund sites in Marshall? ▼
How many toxic release facilities are in Marshall? ▼
What is the air quality in Marshall? ▼
Is the drinking water safe in Marshall? ▼
What environmental agencies cover Marshall? ▼
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.