Data / Mines / Tennessee / Immel Mine
Immel Mine, Knox County, Tennessee: 347 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Immel Mine is an active zinc underground mine in Knox County, Tennessee, operated by Crucible Etn LLC with 140 employees on MSHA's record (mine ID 4000170). Since January 1, 2022 MSHA inspectors issued 347 citations and orders there with $240,184 in proposed penalties, and 16 accident reports were filed there, with 14 injury or illness cases.
The request: Watch Immel Mine (MSHA mine ID 4000170) in Knox County, Tennessee: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4000170
- Status
- Active since October 29, 2007
- Main commodity
- Zinc
- Mine type
- Underground
- County
- Knox County, Tennessee
- Nearest town
- Mascot
- Operator
- Crucible Etn LLC
- Parent company
- Korea Zinc Co Ltd
- Employees
- 140
- MSHA field office
- Knoxville TN Field Office
- Citations and orders since January 1, 2022
- 347
- Significant and substantial
- 66 (19.0%)
- Closure orders
- 13
- High negligence or reckless
- 16
- Proposed penalties
- $240,184
- Amount paid so far
- $203,338
- Inspections
- 65
- Inspector hours on site
- 3,398
- Citations per inspection
- 5.34 (all mines 2.30)
- Accident reports
- 16
- Injury and illness cases
- 14
- Fatalities
- 0
- Latest MSHA record
- August 20, 2026
- Citations issued to contractors here
- 7 ($1,415 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 | 84 | 18 | $151,365 | 5 |
| 2023 | 94 | 19 | $27,631 | 3 |
| 2024 | 74 | 13 | $24,493 | 3 |
| 2025 | 59 | 9 | $21,991 | 2 |
| 2026 | 36 | 7 | $14,704 | 1 |
Standards cited most at Immel 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 57.14100 | Underground metal and nonmetal mines | 72 |
| 30 CFR 57.3200 | Underground metal and nonmetal mines | 11 |
| 30 CFR 57.12030 | Underground metal and nonmetal mines | 11 |
| 30 CFR 57.4104 | Underground metal and nonmetal mines | 9 |
| 30 CFR 57.5066 | Underground metal and nonmetal mines | 8 |
| 30 CFR 57.4201 | Underground metal and nonmetal mines | 7 |
| 30 CFR 57.11001 | Underground metal and nonmetal mines | 7 |
| 30 CFR 57.12018 | Underground metal and nonmetal mines | 7 |
| 30 CFR 57.12008 | Underground metal and nonmetal mines | 7 |
| 30 CFR 57.12020 | Underground metal and nonmetal mines | 7 |
| 30 CFR 57.20003 | Underground metal and nonmetal mines | 7 |
| 30 CFR 57.12004 | Underground metal and nonmetal mines | 6 |
| 30 CFR 57.16005 | Underground metal and nonmetal mines | 6 |
| 30 CFR 57.9300 | Underground metal and nonmetal mines | 5 |
| 30 CFR 57.12019 | Underground metal and nonmetal mines | 5 |
Injury and illness cases at Immel Mine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 1 |
| Days away from work or restricted activity | 9 |
| No lost time, or an occupational illness | 4 |
What the accident reports at Immel Mine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Powered haulage | 5 |
| Slip or fall of person | 2 |
| Handtools (nonpowered) | 2 |
| Fall of face/rib/pillar/side/highwall | 2 |
| Handling of materials | 2 |
| Stepping or kneeling on object | 1 |
| Other | 1 |
| Fire | 1 |
Equipment named in accident reports at Immel Mine
| Equipment | Reports |
|---|---|
| Forklift | 3 |
| Ore haulage trucks - off highway trucks | 3 |
| Pneumatic blasting agent loader | 3 |
| Hand tools (not powered) | 2 |
Other open mines in Knox County, Tennessee
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Knoxville Cement Plant | Cemex Const Materials Atlantic, LLC | Knox County, TN | Cement | 147 | 159 |
| Forks of the River Quarry | Martin Marietta Southeast Agg Operations, LLC | Knox County, TN | Crushed, broken limestone | 16 | 9 |
| Dixie Lee Quarry | Vulcan Construction Materials, LLC | Knox County, TN | Crushed, broken limestone | 22 | 8 |
| Riverside Drive Quarry | Vulcan Construction Materials, LLC | Knox County, TN | Crushed, broken limestone | 9 | 5 |
| Midway Quarry | Martin Marietta Southeast Agg Operations, LLC | Knox County, TN | Crushed, broken limestone | 8 | 5 |
| I-75 Quarry | Martin Marietta Southeast Agg Operations, LLC | Knox County, TN | Crushed, broken limestone | 12 | 4 |
| Walker's Dirt Pit | Walker's Rock | Knox County, TN | Clay, ceramic, refractory mnls. | 2 | 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.