Where Is the Planned Vulcan Comal Quarry?

Vulcan Materials plans to set up a 1500-acre open-pit limestone quarry in a residential area of central Comal County, located between Bulverde, Spring Branch, Garden Ridge, and New Braunfels.


  • Nearly three miles across
  • One mile fronting SH 46
  • 1½ miles fronting FM 3009
  • Less than one mile from FM 1863
  • ¼ mile from Beck Road

Carcinogenic Dust

All gravel quarries create and emit dust particles strongly associated with health problems such as lung cancer,1 heart disease,2 stroke,3 and reproductive issues.4 The finest particles are invisible and affect residents living miles away from the actual quarry site.

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Truck Traffic

With the additional gravel-hauling traffic, expect to see an estimated 444 truck loads per hour in the surrounding area. The increased truck traffic will make our roads more dangerous and lengthen travel times. Roadways most impacted will be SH 46, FM 3009, FM 1863, and Beck Road.

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Property Values

According to studies, properties within a five-mile radius of a new quarry lose up to 20 percent of their market value.5,6 Over 12,000 people live in the surrounding area. Property valuation losses are estimated at over $100 million.

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Water Resources

The Vulcan quarry will affect local wells, water levels, and water quality. Impact will come from blasting, destruction of caves, increased storm runoff, and hazardous chemicals entering the water supply.

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News Updates & Info

View of Hill Country in Comal County, Texas

Texas Hill Country at Risk from Aggregate Mining


The unique natural resources of the Texas Hill Country are at increasing risk from aggressive expansion by aggregate mining companies proposing numerous rock quarries and cement plants throughout the region.

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Comal Independent School District

Comal ISD Board Commits to Contested Case Hearing


In a 7-0 vote on June 26, Comal ISD Board of Trustees approved a resolution supporting area residents, echoing their concerns about the proposed Vulcan quarry, and directing the school administration to file for a contested case hearing.

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Bulverde, Texas (Comal County)

Bulverde Passes Strong Resolution Opposing Vulcan Quarry


On June 12, Bulverde passed a resolution opposing the Comal County Vulcan quarry, stating its intention to directly request a contested case hearing, and submitting to TCEQ formal recommendations for tighter permit restrictions.

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All News Updates & Info

Events & Meetings

Speaking at a public meeting. TCEQ public meeting scheduled in New Braunfels for proposed Vulcan Comal quarry.

Community Preparation for Contested Case Hearing


Thursday, August 23: Public forum for Comal County and Hill Country residents to prepare for the upcoming Contested Case Hearing on the proposed Vulcan quarry.

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Spring Clean Yard Sale & Market Comal County Vulcan Quarry

Fall Yard Sale & Market


Saturday, September 29: FM 3009 neighborhood yard sale and market to raise funds to Stop 3009 Vulcan Quarry in Comal County. Donate quality garage sale items and shop for holiday decor, antiques, tools, appliances, kitchen wares, clothing, jewelry, music and more!

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Willie’s Grill & Icehouse Spirit Night benefiting Stop 3009 Vulcan Quarry

Get in the Spirit: Stop Vulcan


Tuesday, September 18 and Wednesday, November 7: Plan to eat at Willie’s Grill & Icehouse in New Braunfels (Creekside) on selected evenings. Fifteen percent of your check goes to benefit Stop 3009 Vulcan Quarry when you mention our cause.

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All Events & Meetings