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Hazardous Substance Removal Certification in Walnut Creek, CA

8 records with this classification and Walnut Creek as their locality of record, from CSLB's records, as of November 3, 2026.

Source: California Contractors State License Board (CSLB) — records as of November 3, 2026. Records change; the board’s own CSLB License Check is the current source.

• AEI CONSULTANTS CLEAR
  License 654919 · expires September 30, 2028
• ALISTO INC CLEAR
  License 652544 · expires August 31, 2028
• BROSAMER & WALL INC CLEAR
  License 978808 · expires November 30, 2026
• ENGINEERED SOIL REPAIRS INC CLEAR
  License 668184 · expires March 31, 2027
• MARY A RAMOS CLEAR
  License 492317 · expires May 31, 2028
• ROBERT BROSAMER CLEAR
  License 267780 · expires December 31, 2026
• SLR INTERNATIONAL CORPORATION CLEAR
  License 991727 · expires March 31, 2028
• TIMMERMAN ENGINEERING CONSTRUCTION CLEAR
  License 561795 · expires September 30, 2027