Vulcan Materials Company

Current Azusa Rock Operations

Air Quality Standards


New Plan


Vulcan Materials Company

Who is Vulcan Materials Company?

Vulcan Materials Company (Vulcan Materials) is the nation's largest producer of construction aggregates. Vulcan Materials produces the crushed stone, sand, gravel and other construction aggregates that form the building blocks for our nation's homes, hospitals, schools and infrastructure.

How long has Vulcan Materials Company owned Azusa Rock?

Vulcan has been the owner and operator of Azusa Rock since January 1999, when it acquired CalMat Co.

Who owns Vulcan Materials Company?

Vulcan Materials is publicly traded and listed on the New York Stock Exchange under the symbol VMC. You may even own part of Vulcan Materials as part of your 401K or through a mutual fund.

Does Vulcan Materials Company have the right to operate without any restrictions?

No, Azusa Rock operates under a Conditional Use Permit (CUP) that acknowledges Vulcan Materials' right to mine the property under California law. Vulcan Materials must strictly adhere to all permit conditions and also meet the requirements of various government agencies that oversee laws relating to safety, health, environmental and land use requirements.