Searles Valley Minerals INC.

• Layoff notice effective APR 7, 2026 · 270 employees · filed FEB 6, 2026 · Layoff Permanent — recorded; a layoff does not change the status

Notices filed with the state under the federal WARN Act, as the state publishes them, collected by the WARN Act notices feed (CC BY 4.0). A notice records what the employer told the state; it is not by itself proof that the plant closed.

What they make

Where it is

Other plants nearby

Every listed plant in San Bernardino County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in AIR, AIRS/AFS, BR, CA-ENVIROVIEW, E-GGRT, HWTS-DATAMART, ICIS, NCDB, OSHA-OIS, RCRAINFO, SSTS, TRIS · EPA site type STATIONARY.

• State WARN plant-closing and layoff noticesEXISTENCE
  first seen APR 2026 · last seen APR 2026
• EPA ECHO compliance recordsOPERATING
  first seen SEP 2025 · last seen SEP 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110000481933 · first seen JUL 2016 · last seen JUL 2016

IN SAN BERNARDINO COUNTY52 other plants share this one’s industry (Basic Chemical Manufacturing, NAICS 3251); 3 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: SEARLES VALLEY MINERALS INC. · OCT 2026

Street address

EPA: 13200 MAIN ST · OCT 2026

City

EPA: TRONA · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06071 · OCT 2026

Coordinates

EPA: 35.75997,-117.3767 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: LQG · OCT 2026