Data / Mines / Texas / Knippa Plant
Knippa Plant, Uvalde County, Texas: 25 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Knippa Plant is an active construction sand and gravel surface mine in Uvalde County, Texas, operated by Uvalde Concrete LLC with 8 employees on MSHA's record (mine ID 4102610). Since January 1, 2022 MSHA inspectors issued 25 citations and orders there with $4,606 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Knippa Plant (MSHA mine ID 4102610) in Uvalde County, Texas: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4102610
- Status
- Active since August 31, 1983
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Uvalde County, Texas
- Nearest town
- Knippa
- Operator
- Uvalde Concrete LLC
- Employees
- 8
- MSHA field office
- San Antonio TX Field Office
- Citations and orders since January 1, 2022
- 25
- Significant and substantial
- 5 (20.0%)
- Closure orders
- 0
- High negligence or reckless
- 7
- Proposed penalties
- $4,606
- Amount paid so far
- $4,606
- Inspections
- 11
- Inspector hours on site
- 71
- Citations per inspection
- 2.27 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- April 8, 2026
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 | 2 | 0 | $266 | 0 |
| 2023 | 11 | 3 | $1,645 | 0 |
| 2024 | 7 | 2 | $1,940 | 0 |
| 2025 | 5 | 0 | $755 | 0 |
Standards cited most at Knippa Plant
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 56.14107 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 3 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 2 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.20008 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.15004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14103 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 1 |
Other open mines in Uvalde County, Texas
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Chapman Pit | South Texas Aggregates Inc | Uvalde County, TX | Crushed, broken limestone | 3 | 90 |
| Davenport Ranch Cline Quarry | Colorado Materials Inc | Uvalde County, TX | Crushed, broken limestone | 8 | 47 |
| RCQ | RCQ, LLC | Uvalde County, TX | Crushed, broken limestone | 4 | 24 |
| Leona Rock Quarry | 8-Mile Ranch Inc | Uvalde County, TX | Crushed, broken limestone | 3 | 14 |
| Black Spur Quarry | Martin Marietta Materials Southwest, LLC | Uvalde County, TX | Crushed, broken limestone | 9 | 12 |
| Knippa Quarry | Vulcan Construction Materials, LLC | Uvalde County, TX | Crushed, broken traprock | 17 | 5 |
| Uvalde Quarry Company | Wright Materials | Uvalde County, TX | Crushed, broken limestone | 7 | 3 |
| Cantrell Quarry | Vulcan Construction Materials, LLC | Uvalde County, TX | Crushed, broken traprock | 3 | 3 |
| Uvalde Quarry | Vulcan Construction Materials, LLC | Uvalde County, TX | Crushed, broken limestone | 50 | 1 |
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.