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 (map above) 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

SOAH Preliminary Hearing, March 6, 2019, Comal County Courthouse

Comal County Citizens and CISD Granted Affected Party Status


On March 6, nearly 200 Comal County citizens filled the courthouse in New Braunfels. The SOAH judge granted affected party status to citizens present living within five miles of the proposed crusher.

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SOAH Preliminary Hearing, March 6, 2019, Comal County Courthouse

What’s Next? After the Preliminary Hearing


Now what happens following the March 6 SOAH Preliminary Hearing? Named an affected party or not? Alignment benefits and details. How to make your contributions to help fund legal fees and scientific experts.

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TCEQ Commissioners Grant Hearing on Vulcan Quarry (December 12, 2018)

TCEQ Commissioners Grant Hearing on Vulcan Quarry


On December 12, TCEQ Commission granted a contested case hearing on permit for the quarry proposed by Vulcan Materials in Comal County.

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All News Updates & Info

Events & Meetings

Castle Avalon

Love Your Honey, Love Your Hill Country Dinner & Auction


Friday, March 29, 2019: Celebrate your love for your honey and Hill Country! Inaugural fundraising dinner and auction at Castle Avalon. Great food, libations, music, silent and live auctions.

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SOAH Preliminary Hearing, March 6, 2019, Comal County Courthouse

SOAH Preliminary Hearing


Wednesday, March 6: SOAH Preliminary Hearing on the air quality permit for the proposed Vulcan quarry in Comal County. To be an affected party, you must attend this hearing in New Braunfels.

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Community Education re SOAH Preliminary Hearing, January 30, 2019

Community Education re SOAH Preliminary Hearing


Wednesday, January 30: Educational meeting to prepare residents for upcoming SOAH preliminary hearing on the proposed Vulcan quarry in Comal County.

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All Events & Meetings