Data / Mines / Texas / Mico Quarry
Mico Quarry, Medina County, Texas: 12 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Mico Quarry is an active crushed, broken stone surface mine in Medina County, Texas, operated by Vulcan Construction Materials, LLC with 16 employees on MSHA's record (mine ID 4104711). Since January 1, 2022 MSHA inspectors issued 12 citations and orders there with $1,918 in proposed penalties, and 2 accident reports were filed there, with 2 injury or illness cases.
The request: Watch Mico Quarry (MSHA mine ID 4104711) in Medina County, Texas: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4104711
- Status
- Active since April 1, 2014
- Main commodity
- Crushed, broken stone
- Mine type
- Surface
- County
- Medina County, Texas
- Nearest town
- Mico
- Operator
- Vulcan Construction Materials, LLC
- Parent company
- Vulcan Materials Company
- Employees
- 16
- MSHA field office
- San Antonio TX Field Office
- Citations and orders since January 1, 2022
- 12
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $1,918
- Amount paid so far
- $1,918
- Inspections
- 11
- Inspector hours on site
- 92
- Citations per inspection
- 1.09 (all mines 2.30)
- Accident reports
- 2
- Injury and illness cases
- 2
- Fatalities
- 0
- Latest MSHA record
- April 30, 2026
- Citations issued to contractors here
- 2 ($2,265 proposed)
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 | 9 | 0 | $1,402 | 1 |
| 2023 | 1 | 0 | $214 | 0 |
| 2025 | 1 | 0 | $151 | 1 |
| 2026 | 1 | 0 | $151 | 0 |
Standards cited most at Mico Quarry
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 56.14101 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 3 |
| 30 CFR 46.7 | Training at sand, gravel and surface stone mines | 2 |
| 30 CFR 56.3401 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Mico Quarry
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 2 |
What the accident reports at Mico Quarry describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Machinery | 1 |
| Handtools (nonpowered) | 1 |
Equipment named in accident reports at Mico Quarry
| Equipment | Reports |
|---|---|
| Hand tools (powered) | 1 |
| Hand tools (not powered) | 1 |
Other open mines in Medina County, Texas
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Cobey Hollow Stone- Mico | Ace Aggregates, LLC | Medina County, TX | Crushed, broken limestone | 5 | 55 |
| FM 1283 | H.L. Zumwalt Quarry Operations | Medina County, TX | Crushed, broken limestone | 10 | 39 |
| Hondo Plant | NM Energy LLC | Medina County, TX | Dimension limestone | 11 | 24 |
| 711 Quarry | Medina Aggregates, LLC | Medina County, TX | Crushed, broken limestone | 2 | 21 |
| Medina Rock & Rail | Martin Marietta Materials Southwest, LLC | Medina County, TX | Crushed, broken limestone | 48 | 17 |
| Rio Medina | Martin Marietta Materials Southwest, LLC | Medina County, TX | Crushed, broken limestone | 21 | 16 |
| Rio Medina Operations | Capitol Aggregates, Inc. | Medina County, TX | Crushed, broken limestone | 5 | 13 |
| Medina Quarry | Vulcan Construction Materials, LLC | Medina County, TX | Crushed, broken limestone | 12 | 9 |
| 341 Pit | Cuatro T Construction | Medina County, TX | Crushed, broken limestone | 5 | 0 |
| Jarco Aggregates Castroville Pit | Madden Materials | Medina County, TX | Construction sand and gravel | 3 | 0 |
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.