Ross Island Hardtack Island Plant
Hardtack Island, Toe Island, Portland, OR 97202
UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 1 SOURCE
Present in a source dataset, with no recent operating signal.
What they make
Ground or Treated Mineral and Earth Manufacturing327992Where it is
45.48633, -122.65784 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ross Island Boise Concrete Plant | Portland | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 0.7 KM |
| Portland Marble Works INC | Portland | Cut Stone and Stone Product Manufacturing 327991 | UNVERIFIED | 0.7 KM |
| Ross Island Sand and Gravel Tait Facility | Portland | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 1.9 KM |
| Stone Center INC | Portland | Cut Stone and Stone Product Manufacturing 327991 | UNVERIFIED | 1.8 KM |
| Conrad Stonecutting INC | Portland | Cut Stone and Stone Product Manufacturing 327991 | UNVERIFIED | 2.6 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 NPDES, OR-DEQ · EPA site type WATER SYSTEM.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA FRS | EXISTENCE | OCT 2018 | OCT 2018 |
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.