Koppers INC
3185 S County Road a, Superior, WI 54880
UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 1 SOURCE
Present in a source dataset, with no recent operating signal.
What they make
Sawmills and Wood Preservation321110Where it is
46.63332, -92.08488 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Tienergy, LLC | Superior | Sawmills 321113 | UNVERIFIED | 2.2 KM |
| White Cedar Shingles, INC. | Superior | Sawmills 321113 | UNVERIFIED | 10.8 KM |
| Lake States Lumber INC | Duluth | Wood Preservation 321114 | UNVERIFIED | 13.3 KM |
| The Tongue & Groove Store | Duluth | Sawmills 321113 | UNVERIFIED | 28.7 KM |
| Duluth City Sawmill L.L.C. | Rice Lake | Sawmills 321113 | UNVERIFIED | 33.2 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 5 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
EPA cross-references this facility in EIS · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA FRS | EXISTENCE | JUN 2017 | DEC 2024 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| CITY | EPA FRS | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.