Clark, IN
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.
Environmental data for Clark in Indiana · Population: 122,800
TRI sites such as Kitchen Kompact; Heidelberg Materials US Cement LLC; Steel Dynamics Inc.; SDWIS systems such as WATSON RURAL WATER COMPANY; SELLERSBURG WATER DEPARTMENT; BORDEN TRI-COUNTY REGION anchor Clark, IN's EPA extract. Derived burden score 42/100 (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 Clark include BORDEN TRI-COUNTY REGION; RURAL MEMBERSHIP WATER CORP. OF CLARK CO; MARYSVILLE OTISCO NABB WATER CORP., while Kitchen Kompact leads reported TRI pounds among local Form R filers. AQS median AQI 47 / peak 150 in 2024.
Burden score 42/100 (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 Clark -- 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 Clark, IN: EPA TRI 2023 reporting year
Same facilities, both years
-20.2%
11 facilities that filed in 2022 and 2023
Whole inventory
-20.4%
152.9 thousand lb → 121.6 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Clark, IN's total reported releases fell from 152.3 thousand lb in 2022 to 121.6 thousand lb in 2023, based on EPA TRI filings.
- Clark, IN's air releases fell from 136.3 thousand lb in 2022 to 107.8 thousand lb in 2023, based on EPA TRI filings.
- Clark, IN's off-site transfers fell from 16.0 thousand lb in 2022 to 13.8 thousand lb in 2023, based on EPA TRI filings.
- Clark, IN's chemicals reported fell from 25 in 2022 to 23 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 | 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 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 (7)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| WATSON RURAL WATER COMPANY | 15,750 | 0 |
| SELLERSBURG WATER DEPARTMENT | 15,655 | 0 |
| BORDEN TRI-COUNTY REGION | 11,000 | 18 |
| RURAL MEMBERSHIP WATER CORP. OF CLARK CO | 8,630 | 5 |
| MARYSVILLE OTISCO NABB WATER CORP. | 6,813 | 1 |
| WASHINGTON TOWNSHIP WATER | 4,315 | 0 |
| 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 (8)
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.