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

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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Gravel and Rock-Crushing Quarry

December Holds Important Dates for Comal County Citizens


Latest developments and news updates related to the proposed quarry between Bulverde and New Braunfels, Texas. Upcoming TCEQ public meetings and deadlines.

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Affected Person Recommendations & Replies


On December 12, TCEQ commissioners will decide who is and who is not an affected person. But December 3 is the deadline to submit replies.

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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 Education re Preliminary Hearing


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

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Love Your Honey, Love Your Hill Country Gala

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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Concrete Ready-Mix Batch Plant

Concrete Plant Proposed in Spring Branch


TCEQ is holding a public meeting on October 1, 2018 to discuss the permit application by Tex-Mix Partners to set up a concrete plant in Spring Branch near US Highway 281 and Rebecca Creek Road (between FM 306 and FM 311).

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All Events & Meetings