PROJECT:
DAMES & MOORE – SQUARE D FACILITY
LEAD AND COPPER CONTAMINATED SOIL
CLIENT: SQUARE D COMPANY
LOCATION: BEAUMONT, CALIFORNIA
DESCRIPTION:
The Square D Company Facility that manufactured computer circuit boards was slated for disassembling and eventual sale. During the assessment of the property, soil samples indicated extremely high levels of lead and copper, which were characterized as hazardous under the Resource Conservation and Recovery Act (RCRA). Approximately 5,000 tons were excavated and stockpiled for treatment. Further investigation uncovered an aged municipal solid waste burn dump, circa 1940. Characterization revealed elevated levels of lead, which were determined to be RCRA hazardous. Approximately 3,000 tons of ash were excavated and stockpiled for treatment.
Soli-Bond, Inc. was contracted for remediation services. A detailed chemical stabilization treatability study was performed to evaluate the reagent type, recipe and effectiveness on the contamination present. Following the successful verified treatability study, Soli-Bond, Inc. mobilized its Transportable Treatment Unit (TTU) permitted through the State of California Department of Toxic Substance Control (DTSC).
Remedial actions included screening of all material prior to processing, chemical stabilization processing and stockpiling for successful process verification.
Upon successful verification sampling the processed material was loaded into railroad cars and transported off-site for disposal as a non-RCRA waste. All 8,000 tons of soil was successfully processed over a 7-day period.