Lake Herman Quarry, located in Solano County, CA off Hwy 80, supplies high-quality crushed and broken stone NEC suitable for a variety of construction applications. Operated by CalMat Co, a Vulcan Materials Company, this surface quarry employs 68 workers and benefits from excellent transportation infrastructure, providing efficient access to regional markets.
Operator
CalMat Co
Parent Company
Vulcan Materials Company
Company Type
Corporation
35
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38.117222, -122.181111
Data Source
Mine Safety and Health Administration (MSHA)
Last updated: 1/30/2026
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