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Permanente Quarry - Archive

Lehigh Quarry & Cement Plant FAQs

Santa Clara County Supervisor Joe Simitian and the City of Cupertino conduct a public informational meeting to review and discuss the status of the various local, state and federal agency oversight and permits for the Lehigh Cement Plant and Quarry. Recorded February 15, 2018 at the Cupertino Community Hall.
A Lehigh Public Regulatory Outreach Meeting sponsored by County Supervisor Joe Simitian was held on November 16, 2016, in the Cupertino Community Hall
Below are questions and answers regarding Lehigh Quarry and Cement Plant collected from a Lehigh Public Regulatory Outreach Meeting sponsored by County Supervisor Joe Simitian on November 4, 2015, in the Cupertino Town Hall

2013 Reclamation Plan Amendment - Withdrawn


2012 Reclamation Plan Amendment 


Vested Rights and Other Documents
Provides links to other documents related to the Permanente Quarry.

Contacts and Links

To be included on a mailing list of future notifications for this project, or for further information, please contact Rob Eastwood, (408) 299-5792.

Report potential violations of the County Noise Ordinance to the County Department of Environmental Health, at 408 918-3400.

Noise Monitoring Report for Lehigh Hanson Permanente Quarry Report

Bay Area Air Quality Management District Title V Permit Program web page for Lehigh Southwest Cement Company

SF Regional Water Quality Control Board

California Department of Conservation, Office of Mines and Reclamation

US Environmental Protection Agency

A number of government agencies have regulatory oversight over Permanente Quarry and the Lehigh Cement plant.

Lehigh HRA 2011 A Revised Health Risk Assessment (HRA) from Lehigh Southwest Cement Company dated March 30, 2011, is available. This assessment is a draft, not the final approved document, and is under review by the Bay Area Air Quality Management District (BAAQMD) and the State Office of Environmental Health Hazard Assessment. This review is expected to be complete in June 2011. Comments regarding the HRA should be directed to the BAAQMD.​

Last updated: 11/27/2019 11:15 AM