Rock Island, IL
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against every other tracked county rather than against fixed national thresholds.
Environmental data for Rock Island in Illinois
Rock Island, IL is tracked across three EPA datasets covering 18 Toxics Release Inventory (TRI) facilities, 47 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 56/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 13.5M lbs of reported toxic releases under EPCRA Section 313, while 16 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 44 and a peak AQI of 84 in 2024, with 76% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
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 | 277 (76%) | 89 | 0 | 84 |
| 2023 | 178 (49%) | 167 | 16 | 232 |
| 2022 | 214 (59%) | 146 | 0 | 90 |
| 2021 | 191 (53%) | 167 | 3 | 112 |
| 2020 | 234 (66%) | 120 | 1 | 102 |
Source: EPA Air Quality System (AQS) Annual AQI by County 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 Illinois, see the EPA's AirNow.gov.
Water Systems (47)
| System | Population | Violations |
|---|---|---|
| MOLINE | 44,500 | 0 |
| ROCK ISLAND | 39,018 | 0 |
| SILVIS | 7,473 | 1 |
| MILAN | 4,945 | 9 |
| COAL VALLEY | 3,873 | 3 |
| COLONA WEST | 2,640 | 0 |
| COLONA EAST | 2,501 | 0 |
| CARBON CLIFF | 2,134 | 6 |
| HAMPTON | 1,863 | 1 |
| PORT BYRON | 1,678 | 4 |
| SILVIS HEIGHTS WATER CORP | 1,450 | 9 |
| GRIDLEY | 1,411 | 1 |
| RAPIDS CITY | 962 | 0 |
| CLOVER LEAF VILLAGE MHP | 732 | 0 |
| CORDOVA | 640 | 1 |
| EAST MOLINE CORRECTIONAL CENTER | 500 | 0 |
| CROPPERS 1ST 4TH AND 5TH ADDITION | 495 | 0 |
| CEDAR BROOK ESTATES SUBDIVISION | 450 | 2 |
| EDGINGTON WATER DISTRICT | 391 | 0 |
| BUYSSE SUBDIVISION | 380 | 1 |
| FALCON FARMS | 350 | 0 |
| RIDGEWOOD LEDGES WATER ASSOCIATION | 300 | 0 |
| AIR VIEW MHP | 200 | 1 |
| EAST LAWN WATER ASSOCIATION | 160 | 0 |
| COYNE CENTER COOP | 150 | 0 |
| TOWER RIDGE SUBDIVISION | 147 | 0 |
| INDIAN BLUFFS SUBDIVISION | 138 | 0 |
| EVERGREEN VILLAGE SUBDIVISION | 130 | 0 |
| WINDING CREEK ESTATES | 120 | 0 |
| WHISPERING HILLS MHP | 100 | 0 |
| EBERTS 3RD ADDITION | 99 | 0 |
| M C L W SYSTEM, INC. | 98 | 2 |
| OAK VIEW ESTATES | 95 | 0 |
| RAINBOW RIDGE | 91 | 0 |
| TIMBER RIDGE SBDV | 90 | 0 |
| SUBURBAN HEIGHTS SUBDIVISION | 75 | 0 |
| HILLCREST COURT 2ND ADDITION | 66 | 0 |
| HILLSDALE PROPERTIES | 66 | 0 |
| CHERRYDALE SUBDIVISION | 63 | 1 |
| HILLCREST COURT SUBDIVISION | 60 | 0 |
| OAKWOOD WEST SUBDIVISION | 57 | 0 |
| CHIGAKWA PARK ESTATES | 53 | 0 |
| WINDCREST SUBDIVISION | 49 | 0 |
| TENNANTS SHADY OAKS SUBDIVISION | 44 | 0 |
| WATER WERKS | 43 | 1 |
| HICKORY HILLS 2ND ADDITION | 42 | 2 |
| EAST END WATER ASSOCIATION | 40 | 0 |
TRI Facilities (18)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Tyson Fresh Meats Inc - Joslin Il | 12.2M lbs |
| 2 | 3M Chemical Operations' Cordova Facility | 634.2K lbs |
| 3 | John Deere Harvester Works East Moline | 350.2K lbs |
| 4 | Sherwin-Williams Co | 135.0K lbs |
| 5 | John Deere Seeding & Cylinder | 77.6K lbs |
| 6 | Crown Group East Moline Plant | 51.8K lbs |
| 7 | McKay's Plating Co | 3.6K lbs |
| 8 | Rock Island Lubricants (rilco) | 1.8K lbs |
| 9 | Rilco | 1.1K lbs |
| 10 | Allied Asphalt (MC-29) | 978 lbs |
| 11 | Steel Warehouse of Quad Cities (spc) | 82 lbs |
| 12 | Atlas Roofing Corp | 9 lbs |
| 13 | George Evans Corp | 4 lbs |
| 14 | Precision Aluminum | 1 lbs |
| 15 | Sandstrom Products Co | 0 lbs |
| 16 | Inpro / Seal | 0 lbs |
| 17 | Williams White & Co | 0 lbs |
| 18 | Rock Island Lubricants Co | 0 lbs |
Cities in Rock Island (8)
Frequently Asked Questions
What is the environmental risk level in Rock Island, Illinois? ▼
Are there Superfund sites in Rock Island? ▼
How many toxic release facilities are in Rock Island? ▼
What is the air quality in Rock Island? ▼
Is the drinking water safe in Rock Island? ▼
What environmental agencies cover Rock Island? ▼
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.