Clinton, 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 Clinton in Iowa · Population: 46,383
TRI sites such as Equistar Chemicals Clinton Plant; Adm Corn Processing; Latham Pool Products Inc. - Dewitt Ia; SDWIS systems such as IOWA-AMERICAN WTR CO-CLINTON DISTRICT; DE WITT WATER SUPPLY; CAMANCHE WATER SUPPLY; NPL sites such as Lawrence Todtz Farm anchor Clinton, IA'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 Clinton include WHEATLAND CITY WATER SUPPLY; WELTON WATER SUPPLY, while Equistar Chemicals Clinton Plant leads reported TRI pounds among local Form R filers. AQS median AQI 46 / peak 90 in 2024.
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 Clinton -- 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 Clinton, IA: EPA TRI 2023 reporting year
Same facilities, both years
-5.9%
10 facilities that filed in 2022 and 2023
Whole inventory
-5.9%
3.8 million lb → 3.6 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.
- Clinton, IA's total reported releases fell from 3.8 million lb in 2022 to 3.6 million lb in 2023, based on EPA TRI filings.
- Clinton, IA's off-site transfers rose from 18.9 thousand lb in 2022 to 363.0 thousand lb in 2023, based on EPA TRI filings.
- Clinton, IA's water releases fell from 201.0 thousand lb in 2022 to 23.2 thousand lb in 2023, based on EPA TRI filings.
- Clinton, IA's air releases fell from 3.6 million lb in 2022 to 3.2 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 | 230 (63%) | 135 | 0 | 90 |
| 2023 | 132 (36%) | 215 | 14 | 235 |
| 2022 | 165 (45%) | 198 | 1 | 107 |
| 2021 | 134 (37%) | 229 | 2 | 112 |
| 2020 | 199 (61%) | 125 | 0 | 87 |
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 (14)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| IOWA-AMERICAN WTR CO-CLINTON DISTRICT | 24,769 | 0 |
| DE WITT WATER SUPPLY | 5,514 | 0 |
| CAMANCHE WATER SUPPLY | 4,570 | 0 |
| WHEATLAND CITY WATER SUPPLY | 775 | 2 |
| GRAND MOUND WATER SUPPLY | 615 | 0 |
| CALAMUS WATER SUPPLY | 356 | 0 |
| IOWA-AMERICAN WATER (LOW MOOR) | 250 | 0 |
| GOOSE LAKE MUNI WATER SYSTEM | 239 | 0 |
| TIMBER RIDGE | 225 | 0 |
| STOCKTON MUNI WATER SUPPLY | 176 | 0 |
| MAYSVILLE MUNICIPAL WATER DEPT | 156 | 0 |
| WELTON WATER SUPPLY | 121 | 1 |
| MEADOW KNOLLS ADDITION | 53 | 0 |
| CARDINAL VALLEY ESTATES 3RD ADDITION | 25 | 0 |
TRI Facilities (12)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Equistar Chemicals Clinton Plant | 9.6M lbs |
| 2 | Adm Corn Processing | 8.1M lbs |
| 3 | Latham Pool Products Inc. - Dewitt Ia | 429.7K lbs |
| 4 | Darling Ingredients Inc | 317.2K lbs |
| 5 | Sethness Products Co | 87.8K lbs |
| 6 | Clinton Biodiesel LLC | 21.5K lbs |
| 7 | Guardian Industries - Dewitt | 12.7K lbs |
| 8 | Nestle Purina Petcare Co | 10.6K lbs |
| 9 | Timken Drives | 98 lbs |
| 10 | Ipsco Camanche Works | 97 lbs |
| 11 | Hawkins Inc. - Camanche | 4 lbs |
| 12 | Magnaflux | 0 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Lawrence Todtz Farm | NPL Site | 52.11 |
Cities in Clinton (7)
Frequently Asked Questions
What is the environmental risk level in Clinton, Iowa? ▼
Are there Superfund sites in Clinton? ▼
How many toxic release facilities are in Clinton? ▼
What is the air quality in Clinton? ▼
Is the drinking water safe in Clinton? ▼
What environmental agencies cover Clinton? ▼
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.