Data / Mines / Texas / San Miguel Lignite Mine
San Miguel Lignite Mine: 82 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
San Miguel Lignite Mine is an active coal (lignite) surface mine in Atascosa County, Texas, operated by Nacg Texas, Inc. with 287 employees on MSHA's record (mine ID 4102840). Since January 1, 2022 MSHA inspectors issued 82 citations and orders there with $174,922 in proposed penalties, and 12 accident reports were filed there, with 11 injury or illness cases, 1 of them fatal.
The request: Watch San Miguel Lignite Mine (MSHA mine ID 4102840) in Atascosa County, Texas: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4102840
- Status
- Active since May 6, 1980
- Main commodity
- Coal (lignite)
- Mine type
- Surface
- County
- Atascosa County, Texas
- Nearest town
- Jourdanton
- Operator
- Nacg Texas, Inc.
- Parent company
- North American Construction Group, LTD
- Employees
- 287
- MSHA field office
- San Antonio TX Field Office
- Citations and orders since January 1, 2022
- 82
- Significant and substantial
- 5 (6.1%)
- Closure orders
- 2
- High negligence or reckless
- 2
- Proposed penalties
- $174,922
- Amount paid so far
- $174,922
- Inspections
- 28
- Inspector hours on site
- 872
- Citations per inspection
- 2.93 (all mines 2.30)
- Accident reports
- 12
- Injury and illness cases
- 11
- Fatalities
- 1
- Latest MSHA record
- November 2, 2026
- Citations issued to contractors here
- 30 ($46,748 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 | 19 | 0 | $5,879 | 2 |
| 2023 | 16 | 0 | $4,116 | 3 |
| 2024 | 11 | 2 | $152,010 | 1 |
| 2025 | 8 | 0 | $1,292 | 4 |
| 2026 | 28 | 3 | $11,625 | 1 |
Standards cited most at San Miguel Lignite Mine
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 77.1606 | Surface coal mines, safety | 18 |
| 30 CFR 77.1605 | Surface coal mines, safety | 8 |
| 30 CFR 77.400 | Surface coal mines, safety | 5 |
| 30 CFR 77.204 | Surface coal mines, safety | 5 |
| 30 CFR 77.512 | Surface coal mines, safety | 4 |
| 30 CFR 77.1104 | Surface coal mines, safety | 3 |
| 30 CFR 77.208 | Surface coal mines, safety | 2 |
| 30 CFR 77.502 | Surface coal mines, safety | 2 |
| 30 CFR 77.410 | Surface coal mines, safety | 2 |
| 30 CFR 77.1110 | Surface coal mines, safety | 2 |
| 30 CFR 77.514 | Surface coal mines, safety | 2 |
| 30 CFR 77.1710 | Surface coal mines, safety | 2 |
| 30 CFR 77.1103 | Surface coal mines, safety | 2 |
| 30 CFR 77.403-1 | Surface coal mines, safety | 2 |
| 30 CFR 77.505 | Surface coal mines, safety | 2 |
Injury and illness cases at San Miguel Lignite Mine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Days away from work or restricted activity | 7 |
| No lost time, or an occupational illness | 3 |
What the accident reports at San Miguel Lignite Mine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 4 |
| Machinery | 3 |
| Powered haulage | 2 |
| Falling/sliding/rolling materials | 1 |
| Handtools (nonpowered) | 1 |
| Other | 1 |
Equipment named in accident reports at San Miguel Lignite Mine
| Equipment | Reports |
|---|---|
| Bulldozer | 3 |
| Shovel | 2 |
| Trucks | 1 |
| Hand tools (not powered) | 1 |
| Tugger | 1 |
| Scraper loader | 1 |
| Hand tools (powered) | 1 |
| Machine | 1 |
Other open mines in Atascosa County, Texas
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Force Sand Pleasanton | Force Sand, LLC | Atascosa County, TX | Sand, industrial | 13 | 142 |
| Poteet Plant | Carousel Energy Services | Atascosa County, TX | Ground silica | 4 | 117 |
| Atascosa | Iron Oak Atascosa LLC | Atascosa County, TX | Sand, industrial | 99 | 96 |
| Bigfoot Mine | Iron Oak Eagle Ford LLC | Atascosa County, TX | Construction sand and gravel | 14 | 40 |
| 16 Sand, LLC | 16 Sand, LLC | Atascosa County, TX | Sand, common | 2 | 37 |
| North American Silica Sand, LLC | North American Silica Sand, LLC | Atascosa County, TX | Sand, industrial | 8 | 36 |
| Sandy Oak Materials | Sandy Oak Materials, LLC | Atascosa County, TX | Sand, common | 5 | 29 |
| Palo Alto Sand Inc. | Palo Alto Silica Sand Inc | Atascosa County, TX | Construction sand and gravel | 9 | 14 |
| Brazil Pit | Far South Mining LLC | Atascosa County, TX | Crushed, broken stone | 4 | 12 |
| Poteet Sand Plant | Martin Marietta Materials Southwest, LLC | Atascosa County, TX | Construction sand and gravel | 11 | 8 |
| Poteet Sand and Gravel | Capitol Aggregates, Inc. | Atascosa County, TX | Sand, common | 5 | 8 |
| Espey Pit and Plant | Espey Silica Sand Company | Atascosa County, TX | Construction sand and gravel | 11 | 6 |
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.