Archives

Southern California Edison

SOIL SAMPLING INVESTIGATION

Cornerstone performed soil sampling investigation for DTSC compliance closure reporting.

Etiwanda, CA


Sakaida Nursery

UNDERGROUND STORAGE TANK REMOVAL

Design, permitting and removal of underground storage tank, including all soil sampling, reporting and closure documentation. Cornerstone also provided backfill, compaction report and repaving to complete the project.

Orange, CA


Montebello Transit

GROUNDWATER & SOIL INVESTIGATION UNDERGROUND STORAGE TANK RELEASE

Cornerstone was retained by the City of Montebello to prepare a workplan for soil and groundwater investigation in compliance with the requirements of the Regional Water Quality Control Board (RWQCB). Cornerstone received approval from the Board and completed the installation of the soil borings and groundwater monitoring wells.

Cornerstone prepared a final report based on the “Risk Based Corrective Action” (RBCA) to assess mitigation requirements within a risk-based structure. Cornerstone obtained a letter of “No Further Action” (NFA) for the site.

Montebello, CA