DEH's Hazardous Materials Compliance Division (HMCD) Hazardous Materials Program is the local agency that performs hazardous materials compliance, toxic gas storage, and underground storage tank (UST) inspections in the following geographic areas: within the Cities of Los Altos, Los Altos Hills, Monte Sereno, and Saratoga; Moffett Field; San Martin; Stanford; and unincorporated areas of Santa Clara County.  In addition, HMCD handles County owned/operated facilities regardless of location, and State/Federal facilities within the City of San Jose.

HMCD performs Hazardous Waste Generator and Cal ARP compliance inspections in all areas of Santa Clara County other than in the cities of  Gilroy,  Santa Clara, and  Sunnyvale. 

HMCD performs Hazardous Waste Tiered Permit compliance inspections in all areas of Santa Clara County other than in the cities of Gilroy, Mountain View,  Santa Clara, and  Sunnyvale. 

Agency program responsibilities and contact information for other areas within Santa Clara County can be found by clicking here:

  HMCD is a founding member and supporter of the Unidocs website and online hazardous materials inventory management project. Many of the forms and guidance documents available through our own EHinfo website are Unidocs documents, which are identified by the Unidocs logo. For a history of Unidocs, please click here.

QUICK LINKS (Please click on a subject area)

• Documents (i.e., Forms, Guidelines)
• Hazardous Materials Management Overview
• Hazardous Waste Management Overview
• California Accidental Release Prevention (Cal ARP) Program
• Clandestine Drug Lab Cleanup
• Closure of Facilities and Tank Systems
• Construction/Installation/Upgrade of Facilities and Tank Systems
• Fees
• Free Hazardous Waste Management Training
• Hazardous Materials Clearance 
• Inspections
• Laws and Regulations 
• Links to Other HazMat Agencies and Resources
• Permits
• Plan Checks
• Underground Storage Tanks
• Who Regulates What in Santa Clara County?

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