Conerstone Manufacturing INC
725 N Twin Oaks Valley Rd, San Marcos, CA 92069
UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 1 SOURCE
Present in a source dataset, with no recent operating signal.
What they make
Fluid Power Cylinder and Actuator Manufacturing333995Where it is
33.15143, -117.16170 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Hydraulic Systems & Components INC Dba Rupe's Hydraulics | San Marcos | Machine Tool Manufacturing 333517 | UNVERIFIED | 0.0 KM |
| Tlr & Son Hydraulics, INC. | San Marcos | Machine Shops 332710 | ACTIVE | 0.0 KM |
| California Air Compressor Company | San Marcos | Air and Gas Compressor Manufacturing 333912 | UNVERIFIED | 2.0 KM |
| Accu-seal Sencorpwhite, INC. | San Marcos | Packaging Machinery Manufacturing 333993 | REPORTED CLOSED | 2.2 KM |
| Rupes Hydraulics Rupe CORP | San Marcos | Fluid Power Valve and Hose Fitting Manufacturing 332912 | UNVERIFIED | 2.6 KM |
Also at this address
More than one federal record exists for this street address. The primary record for the site is listed first.
WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 6 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 RCRAINFO · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA FRS | EXISTENCE | SEP 2025 | SEP 2025 |
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 |
| RCRA GENERATOR STATUS | EPA ECHO | SEP 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.