Monroe, 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 Monroe in Iowa · Population: 7,546
TRI sites such as Cargill Corn Milling; Ajinomoto Health & Nutrition N.a. Inc.; Eddyville Chlor-Alkali LLC; SDWIS systems such as ALBIA MUNICIPAL WATER WORKS; LOVILIA MUNICIPAL WATER DEPARTMENT anchor Monroe, IA's EPA extract. Derived burden score 27/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Cargill Corn Milling; Ajinomoto Health & Nutrition N.a. Inc.; Eddyville Chlor-Alkali LLC are among the largest Form R filers reporting in Monroe; no SDWIS system here carries an active health-based flag. No AQS county monitors report here.
Burden score 27/100 (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 Monroe -- 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 Monroe, IA: EPA TRI 2023 reporting year
Same facilities, both years
+0.9%
7 facilities that filed in 2022 and 2023
Whole inventory
+0.9%
1.8 million lb → 1.8 million lb, every facility that filed
- Monroe, IA's total reported releases rose from 1.8 million lb in 2022 to 1.8 million lb in 2023, based on EPA TRI filings.
- Monroe, IA's air releases fell from 747.4 thousand lb in 2022 to 581.8 thousand lb in 2023, based on EPA TRI filings.
- Monroe, IA's water releases rose from 1.0 million lb in 2022 to 1.2 million lb in 2023, based on EPA TRI filings.
- Monroe, IA's off-site transfers rose from 10.9 thousand lb in 2022 to 12.2 thousand lb in 2023, based on EPA TRI filings.
Water Systems (2)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| ALBIA MUNICIPAL WATER WORKS | 3,721 | 0 |
| LOVILIA MUNICIPAL WATER DEPARTMENT | 472 | 0 |
TRI Facilities (8)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Cargill Corn Milling | 4.2M lbs |
| 2 | Ajinomoto Health & Nutrition N.a. Inc. | 2.3M lbs |
| 3 | Eddyville Chlor-Alkali LLC | 142.3K lbs |
| 4 | Wacker Chemical Corp | 76.2K lbs |
| 5 | Ajinomoto Health & Nutrition North America, Inc. | 64.7K lbs |
| 6 | Cargill-Vitamin E | 40.4K lbs |
| 7 | Aym Inc | 174 lbs |
| 8 | Relco Locomotives Inc | 135 lbs |
Cities in Monroe (3)
Frequently Asked Questions
What is the environmental risk level in Monroe, Iowa? ▼
Are there Superfund sites in Monroe? ▼
How many toxic release facilities are in Monroe? ▼
What is the air quality in Monroe? ▼
Is the drinking water safe in Monroe? ▼
What environmental agencies cover Monroe? ▼
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.