Milpitas Environmental Inspection & Remediation

Milpitas sits in the northeastern corner of Santa Clara County, bordered by San Jose to the south and west, Fremont to the north, and the Diablo Range foothills to the east. The city grew rapidly during the semiconductor boom of the 1960s and 1970s, and the residential neighborhoods of that era — particularly the Ranch-style tracts around Calaveras Road and the older sections of the Sunnyhills neighborhood — reflect the compact, cost-efficient construction of that period. Many of these homes retain original materials that include asbestos-containing flooring, acoustic ceilings, and duct insulation.

Milpitas has undergone a second wave of development in recent decades, with large apartment complexes and mixed-use developments added near the BART station and along Main Street. This juxtaposition of 1960s tract homes and contemporary high-density construction creates an inspection market that spans both legacy environmental issues in older properties and moisture management challenges in newer, tightly built structures. Our team serves both segments of Milpitas's varied housing stock.

Milpitas has a well-documented history of industrial and Superfund contamination in its eastern areas — the former Olin Corporation site and the Middlefield-Ellis-Whisman Superfund Study Area have influenced concern about soil and groundwater quality in parts of the city. While residential exposure pathways are regulated and monitored, homeowners near Calaveras Boulevard and the industrial corridor near Dixon Landing Road reasonably ask about soil vapor intrusion and indoor air quality. We provide comprehensive air quality assessments that address these concerns.

The Diablo Range foothills to the east of Milpitas are underlain by serpentine rock formations — the same geology that produces naturally occurring asbestos across a broad swath of the Bay Area's eastern hills. Grading and site work on hillside properties near Ed Levin County Park and along the upper reaches of Calaveras Road can disturb these NOA-bearing soils. We recommend asbestos risk assessment as part of any project planning for hillside properties in this part of Milpitas.