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Leader in Soil and Groundwater Treatment Technologies

PFAS Investigation and Remediation

Vapor Intrusion and Air Emissions

Extensive CERCLA and RCRA Experience

Water Treatment Processes and Optimization Technologies

Extensive Experience in Japan and Asia

Contaminated Site Management

Tri-S Environmental is a premier environmental management firm.

Based in Southern California. Projects worldwide.

SUBSURFACE TESTING RESULTS AT FORMER TORRANCE OIL FIELD WITHHELD FROM PUBLIC

1. APRIL 17, 2025 RESULTS OF RECENT SUBSURFACE SAMPLING AT THE TORRANCE DEL AMO PROJECT SITE, 2325 CRENSHAW BLVD, TORRANCE, CALIFORNIA, NOT SHARED WITH THE PUBLIC LINK

2. JULY 22, 2024 NOTICE OF INTENT FOR REGULATORY OVERSIGHT FROM THE LOS ANGELES REGIONAL WATER QUALITY BOARD TORRANCE DEL AMO (ROSE EQUITIES) PROJECT LOCATED AT 2325 CRENSHAW BOULEVARD, TORRANCE, LOS ANGELES COUNTY, CALIFORNIA LINK

3. MAY 14, 2024 TIME HISTORY OF TRI-S ENVIRONMENTAL INVOLVEMENT AT THE ROSE EQUITIES TORRANCE DEL AMO PROJECT LINK

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California Nuke Meltdown Site Finally Set for Cleanup: Cold War-era workers tested 30,000 rockets, experimented with reactors

LOS ANGELES — More than five decades after a partial nuclear meltdown just outside Los Angeles, state and federal officials Friday announced agreements to remove all contamination and return the atomic energy and rocket engine test site to its natural state. Residents...