Dekalb, 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. 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 Dekalb in Indiana · Population: 43,584
TRI sites such as Steel Dynamics Inc-Flat Roll Div; Therma-Tru Corp; Contitech USA Inc.; SDWIS systems such as AUBURN WATER DEPARTMENT; GARRETT WATER UTILITY; BUTLER WATER DEPARTMENT anchor Dekalb, IN's EPA extract. Derived burden score 56/100 (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 Dekalb include ST. JOE WATER DEPARTMENT; BLUE RIDGE MOBILE HOME PARK; BEN MAR CHATEAU, while Steel Dynamics Inc-Flat Roll Div leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 56/100 (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 Dekalb -- 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 Dekalb, IN: EPA TRI 2023 reporting year
Same facilities, both years
+53.3%
23 facilities that filed in 2022 and 2023
Whole inventory
-0.1%
995.2 thousand lb → 993.8 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.
- Dekalb, IN's water releases rose from 299 lb in 2022 to 459 lb in 2023, based on EPA TRI filings.
- Dekalb, IN's air releases fell from 380.2 thousand lb in 2022 to 308.8 thousand lb in 2023, based on EPA TRI filings.
- Dekalb, IN's off-site transfers rose from 614.7 thousand lb in 2022 to 684.5 thousand lb in 2023, based on EPA TRI filings.
- Dekalb, IN's chemicals reported rose from 37 in 2022 to 38 in 2023, based on EPA TRI filings.
Water Systems (12)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| AUBURN WATER DEPARTMENT | 12,800 | 0 |
| GARRETT WATER UTILITY | 6,390 | 0 |
| BUTLER WATER DEPARTMENT | 2,700 | 0 |
| PIONEER WATER L.L.C. | 2,076 | 0 |
| ASHLEY WATER DEPARTMENT | 983 | 0 |
| ST. JOE WATER DEPARTMENT | 460 | 5 |
| BLUE RIDGE MOBILE HOME PARK | 300 | 2 |
| CORUNNA WATER UTILITY | 255 | 0 |
| BEN MAR CHATEAU | 166 | 2 |
| GOLDEN ACRES MOBILE HOME PARK | 112 | 9 |
| GRATE PROPERTIES MHC | 66 | 0 |
| OR-AN TRAILER COURT | 55 | 10 |
TRI Facilities (25)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Steel Dynamics Inc-Flat Roll Div | 3.1M lbs |
| 2 | Therma-Tru Corp | 975.4K lbs |
| 3 | Contitech USA Inc. | 473.3K lbs |
| 4 | Nucor Vulcraft Group Saint Joe Div | 340.4K lbs |
| 5 | New Millennium Building Systems LLC | 106.4K lbs |
| 6 | Ashley Industrial Molding Inc | 64.9K lbs |
| 7 | Scot Industries | 42.6K lbs |
| 8 | Griffith Rubber Mills of Garrett Inc | 22.7K lbs |
| 9 | Nucor Building Systems | 22.3K lbs |
| 10 | Ball Brass & Aluminum Foundry | 16.8K lbs |
| 11 | Metal Technologies Auburn LLC | 14.0K lbs |
| 12 | Aludyne N.a. LLC (auburn) | 7.9K lbs |
| 13 | Dekalb Metal Finishing | 7.5K lbs |
| 14 | Griffith Rubber Mills - Lee St | 5.6K lbs |
| 15 | Heidtman Steel Products Inc. | 4.1K lbs |
| 16 | Nipg Waterloo | 2.2K lbs |
| 17 | Butler Mill Service Co | 1.8K lbs |
| 18 | Fxi Inc. - Auburn | 895 lbs |
| 19 | Multimatic Indiana Inc. | 291 lbs |
| 20 | Tower Automotive | 137 lbs |
| 21 | Parker Hannifin Corp Cylinder Div Ashley In | 40 lbs |
| 22 | Trin Inc | 1 lbs |
| 23 | Oldcastle Lawn & Garden | 0 lbs |
| 24 | C & a Tool Engineering Inc-Auburn | 0 lbs |
| 25 | Group Dekko Inc | 0 lbs |
Cities in Dekalb (8)
Frequently Asked Questions
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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.