Data / Mines / Texas / Comal County
Mines in Comal County, Texas: 15 open mines
MSHA lists 15 open mines in Comal County, Texas, run by 14 operators and employing 757 people. Since January 1, 2022 its inspectors issued 1,110 citations and orders there with $1,073,474 in proposed penalties, and operators reported 90 injury or illness cases, 1 of them fatal. The operators with the most open mines are Cemex Construction Materials South LLC; Colorado Materials Inc; Heidelberg Materials Southwest LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 15
- Operators
- 14
- Employees
- 757
- Active
- 14
- Intermittent
- 1
- Citations and orders since January 1, 2022
- 1,110
- Significant and substantial
- 125 (11.3%)
- Closure orders
- 24
- High negligence or reckless
- 62
- Proposed penalties
- $1,073,474
- Amount paid so far
- $883,955
- Inspections
- 263
- Inspector hours on site
- 3,888
- Citations per inspection
- 4.22 (all mines 2.30)
- Accident reports
- 104
- Injury and illness cases
- 90
- Fatalities
- 1
- Latest MSHA record
- November 4, 2026
Operators with the most open mines in Comal County, Texas
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Cemex Construction Materials South LLC | 2 | 250 | 414 | $611,372 | 37 |
| Colorado Materials Inc | 1 | 116 | 136 | $111,111 | 8 |
| Heidelberg Materials Southwest LLC | 1 | 92 | 118 | $184,638 | 10 |
| Ash Grove Cement South Texas LLC | 1 | 133 | 117 | $66,339 | 12 |
| Martin Marietta Materials, Inc. | 1 | 83 | 83 | $29,975 | 10 |
| Anderson Columbia Company Inc | 1 | 8 | 71 | $25,514 | 2 |
| Madden Materials | 1 | 3 | 57 | $18,292 | 2 |
| Dean Word Company | 1 | 7 | 30 | $5,054 | 4 |
| Rox, Inc. | 1 | 7 | 26 | $4,888 | 0 |
| Brauntex Materials Inc | 1 | 20 | 23 | $11,114 | 2 |
| Lion Cave Materials | 1 | 6 | 16 | $2,386 | 0 |
| Capitol Aggregates, Inc. | 1 | 4 | 11 | $1,603 | 1 |
| Martin Marietta Materials Southwest, LLC | 1 | 25 | 8 | $1,188 | 2 |
| Vulcan Construction Materials, LLC | 1 | 3 | 0 | $0 | 0 |
Operators with the most citations in Comal County, Texas
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Cemex Construction Materials South LLC | 2 | 250 | 414 | $611,372 | 37 |
| Colorado Materials Inc | 1 | 116 | 136 | $111,111 | 8 |
| Heidelberg Materials Southwest LLC | 1 | 92 | 118 | $184,638 | 10 |
| Ash Grove Cement South Texas LLC | 1 | 133 | 117 | $66,339 | 12 |
| Martin Marietta Materials, Inc. | 1 | 83 | 83 | $29,975 | 10 |
| Anderson Columbia Company Inc | 1 | 8 | 71 | $25,514 | 2 |
| Madden Materials | 1 | 3 | 57 | $18,292 | 2 |
| Dean Word Company | 1 | 7 | 30 | $5,054 | 4 |
| Rox, Inc. | 1 | 7 | 26 | $4,888 | 0 |
| Brauntex Materials Inc | 1 | 20 | 23 | $11,114 | 2 |
| Lion Cave Materials | 1 | 6 | 16 | $2,386 | 0 |
| Capitol Aggregates, Inc. | 1 | 4 | 11 | $1,603 | 1 |
| Martin Marietta Materials Southwest, LLC | 1 | 25 | 8 | $1,188 | 2 |
| Vulcan Construction Materials, LLC | 1 | 3 | 0 | $0 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Balcones Plant | Cemex Construction Materials South LLC | Comal County, TX | Cement | 85 | 334 |
| Hunter Quarry | Colorado Materials Inc | Comal County, TX | Crushed, broken limestone | 116 | 136 |
| Servtex Plant | Heidelberg Materials Southwest LLC | Comal County, TX | Crushed, broken limestone | 92 | 118 |
| Hunter Cement Plant | Ash Grove Cement South Texas LLC | Comal County, TX | Cement | 133 | 117 |
| New Braunfels Plant | Martin Marietta Materials, Inc. | Comal County, TX | Lime | 83 | 83 |
| Balcones Quarry | Cemex Construction Materials South LLC | Comal County, TX | Crushed, broken limestone | 165 | 80 |
| Tejas Quarry | Anderson Columbia Company Inc | Comal County, TX | Crushed, broken limestone | 8 | 71 |
| Madden Materials Knowlton Plant | Madden Materials | Comal County, TX | Crushed, broken limestone | 3 | 57 |
| Mobile CR #3210 | Dean Word Company | Comal County, TX | Crushed, broken limestone | 7 | 30 |
| Rox, Inc. | Rox, Inc. | Comal County, TX | Dimension stone | 7 | 26 |
| Brauntex Materials, Inc. | Brauntex Materials Inc | Comal County, TX | Crushed, broken limestone | 20 | 23 |
| Lion Cave Materials Briggs Pit | Lion Cave Materials | Comal County, TX | Crushed, broken limestone | 6 | 16 |
| Solms Operation | Capitol Aggregates, Inc. | Comal County, TX | Construction sand and gravel | 4 | 11 |
| Hunter Stone | Martin Marietta Materials Southwest, LLC | Comal County, TX | Crushed, broken stone | 25 | 8 |
| Comal Quarry | Vulcan Construction Materials, LLC | Comal County, TX | Crushed, broken limestone | 3 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken limestone | 9 | 60% |
| Cement | 2 | 13.3% |
| Lime | 1 | 6.7% |
| Dimension stone | 1 | 6.7% |
| Construction sand and gravel | 1 | 6.7% |
| Crushed, broken stone | 1 | 6.7% |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 190 | 21 | $200,950 | 16 |
| 2023 | 199 | 26 | $91,606 | 20 |
| 2024 | 244 | 26 | $394,180 | 20 |
| 2025 | 207 | 21 | $176,362 | 17 |
| 2026 | 270 | 31 | $210,376 | 17 |
Standards cited most at mines in Comal County, Texas
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 152 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 90 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 83 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 68 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 67 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 63 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 50 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 33 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 31 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 26 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 24 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 24 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.11003 | Surface metal and nonmetal mines | 17 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 17 |
Injury and illness cases at mines in Comal County, Texas
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Permanent disability | 2 |
| Days away from work or restricted activity | 69 |
| No lost time, or an occupational illness | 18 |
What the accident reports at mines in Comal County, Texas describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 29 |
| Slip or fall of person | 21 |
| Powered haulage | 12 |
| Handtools (nonpowered) | 12 |
| Machinery | 11 |
| Fire | 8 |
| Stepping or kneeling on object | 2 |
| Other | 2 |
| Entrapment | 2 |
| Exploding vessels under pressure | 1 |
Equipment named in accident reports at mines in Comal County, Texas
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 13 |
| Front-end loader | 7 |
| Hand tools (powered) | 6 |
| Ore haulage trucks - off highway trucks | 5 |
| Conveyor | 4 |
| Elevator | 3 |
| Trucks | 2 |
| Milling machinery | 2 |
| Forklift | 2 |
| Shovel | 2 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.