Preliminary environmental assessment (PEA) report for site designated as a future school site notes presence of lead, arsenic and the organochlorine pesticides (OCPs) dieldrin and chlordane. Report recommends several remediation measures at various locations on property.

"This preliminary environmental assessment (PEA) report ("the PEA report") has been prepared by Arcadis, U.S., Inc. (Arcadis) on behalf of the Santa Clara Unified School District (SCUSD) for a portion of the Santa Clara County assessor's parcel number (APN) 31310004, excluding the Peterson Middle School structures ... The PEA report presents the results of the soil investigation conducted in November 2022 and the supplemental delineation soil investigation samples collected in January 2023 to evaluate potential areas of concern ... "-- Introduction.