Woodbury, 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 Woodbury in Iowa · Population: 105,760
TRI sites such as Cf Industries Nitrogen Llc-Port Neal Nitrogen Complex; Cargill Inc; Ag Processing Inc; SDWIS systems such as SIOUX CITY WATER SUPPLY; SERGEANT BLUFF WATER SUPPLY; MOVILLE WATER SUPPLY; NPL sites such as Mid-America Tanning Co. anchor Woodbury, IA's EPA extract. Derived burden score 57/100 (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 Woodbury include SIOUX CITY WATER SUPPLY; DANBURY WATER SUPPLY, while Cf Industries Nitrogen Llc-Port Neal Nitrogen Complex leads reported TRI pounds among local Form R filers. AQS median AQI 43 / peak 93 in 2024.
Burden score 57/100 (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 Woodbury -- 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 Woodbury, IA: EPA TRI 2023 reporting year
Same facilities, both years
+15.8%
24 facilities that filed in 2022 and 2023
Whole inventory
+15.7%
3.5 million lb → 4.1 million lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 3 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Woodbury, IA's total reported releases rose from 3.5 million lb in 2022 to 4.1 million lb in 2023, based on EPA TRI filings.
- Woodbury, IA's land releases rose from 133.5 thousand lb in 2022 to 219.2 thousand lb in 2023, based on EPA TRI filings.
- Woodbury, IA's water releases rose from 774.8 thousand lb in 2022 to 944.2 thousand lb in 2023, based on EPA TRI filings.
- Woodbury, IA's air releases rose from 2.5 million lb in 2022 to 2.8 million 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 | 224 (79%) | 60 | 0 | 93 |
| 2023 | 71 (60%) | 45 | 0 | 169 |
| 2022 | 91 (81%) | 22 | 0 | 76 |
| 2021 | 79 (69%) | 35 | 0 | 168 |
| 2020 | 92 (75%) | 30 | 0 | 81 |
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 Iowa, see the EPA's AirNow.gov.
Water Systems (16)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| SIOUX CITY WATER SUPPLY | 85,791 | 10 |
| SERGEANT BLUFF WATER SUPPLY | 5,015 | 0 |
| MOVILLE WATER SUPPLY | 1,687 | 0 |
| SLOAN WATER SUPPLY | 1,042 | 0 |
| LAWTON WATER SUPPLY | 988 | 0 |
| CORRECTIONVILLE WATER SUPPLY | 766 | 0 |
| ANTHON MUNICIPAL WATER SYSTEM | 545 | 0 |
| PIERSON WATER SUPPLY | 345 | 0 |
| DANBURY WATER SUPPLY | 320 | 2 |
| SALIX WATER SUPPLY | 295 | 0 |
| BRONSON WATER SUPPLY | 294 | 0 |
| HORNICK WATER SUPPLY | 255 | 0 |
| SMITHLAND WATER SUPPLY | 181 | 0 |
| OTO WATER SUPPLY | 72 | 0 |
| EAST SIDE ACRES | 70 | 0 |
| BEREA HEIGHTS INC | 33 | 0 |
TRI Facilities (29)
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Mid-America Tanning Co. | Deleted NPL Site | 47.91 |
Cities in Woodbury (14)
Frequently Asked Questions
What is the environmental risk level in Woodbury, Iowa? ▼
Are there Superfund sites in Woodbury? ▼
How many toxic release facilities are in Woodbury? ▼
What is the air quality in Woodbury? ▼
Is the drinking water safe in Woodbury? ▼
What environmental agencies cover Woodbury? ▼
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.