Clark, IN
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Clark in Indiana · Population: 122,800
Clark, IN is tracked across three EPA datasets covering 15 Toxics Release Inventory (TRI) facilities, 8 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 45/100 (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 1.1M lbs of reported toxic releases under EPCRA Section 313, while 5 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 47 and a peak AQI of 150 in 2024, with 59% 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 | 216 (59%) | 146 | 4 | 150 |
| 2023 | 146 (40%) | 208 | 10 | 182 |
| 2022 | 170 (47%) | 192 | 1 | 119 |
| 2021 | 160 (44%) | 205 | 0 | 96 |
| 2020 | 186 (51%) | 180 | 0 | 92 |
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 Indiana, see the EPA's AirNow.gov.
Water Systems (8)
| System | Population | Violations |
|---|---|---|
| WATSON RURAL WATER COMPANY | 15,750 | 0 |
| SELLERSBURG WATER DEPARTMENT | 15,655 | 0 |
| BORDEN TRI-COUNTY REGION | 11,637 | 18 |
| RURAL MEMBERSHIP WATER CORP. OF CLARK CO | 8,250 | 4 |
| MARYSVILLE OTISCO NABB WATER CORP. | 6,813 | 1 |
| WASHINGTON TOWNSHIP WATER | 4,315 | 0 |
| LAKE VIEW MOBILE HOME PARK | 90 | 13 |
| SUNFLOWER VALLEY WATER CO, INC. | 75 | 2 |
TRI Facilities (15)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Kitchen Kompact | 504.1K lbs |
| 2 | Heidelberg Materials US Cement LLC | 258.1K lbs |
| 3 | Steel Dynamics Inc. | 156.9K lbs |
| 4 | Valmont Coatings Gateway Galvanizing | 58.8K lbs |
| 5 | Haas Cabinet Co Inc | 43.3K lbs |
| 6 | Parker Hvac Filtration | 11.2K lbs |
| 7 | Mittera Group Inc | 7.4K lbs |
| 8 | Tenneco Automotive Operating Co Inc. | 7.1K lbs |
| 9 | Cook Compression LLC | 6.0K lbs |
| 10 | Airgas Specialty Products-Jeffersonville In | 2.7K lbs |
| 11 | Cylicron LLC | 174 lbs |
| 12 | Idemitsu Lubricants America Corp | 143 lbs |
| 13 | Chryso Inc | 0 lbs |
| 14 | Chemtrusion Inc. | 0 lbs |
| 15 | Roll Forming Corp | 0 lbs |
Cities in Clark (3)
Frequently Asked Questions
What is the environmental risk level in Clark, Indiana? ▼
Are there Superfund sites in Clark? ▼
How many toxic release facilities are in Clark? ▼
What is the air quality in Clark? ▼
Is the drinking water safe in Clark? ▼
What environmental agencies cover Clark? ▼
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.