Data / Mines / Michigan / Superior Plant
Superior Plant, Tuscola County, Michigan: 27 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Superior Plant is an intermittent construction sand and gravel surface mine in Tuscola County, Michigan, operated by Thumb Aggregate Sales LLC with 2 employees on MSHA's record (mine ID 2003275). Since January 1, 2022 MSHA inspectors issued 27 citations and orders there with $6,183 in proposed penalties, and 1 accident report was filed there, with 1 injury or illness case.
The request: Watch Superior Plant (MSHA mine ID 2003275) in Tuscola County, Michigan: each new citation and each accident report. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA mine ID
- 2003275
- Status
- Intermittent since July 9, 2003
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Tuscola County, Michigan
- Nearest town
- Cass City
- Operator
- Thumb Aggregate Sales LLC
- Employees
- 2
- MSHA field office
- Lansing MI Field Office
- Citations and orders since January 1, 2022
- 27
- Significant and substantial
- 11 (40.7%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $6,183
- Amount paid so far
- $6,032
- Inspections
- 7
- Inspector hours on site
- 76
- Citations per inspection
- 3.86 (all mines 2.30)
- Accident reports
- 1
- Injury and illness cases
- 1
- Fatalities
- 0
- Latest MSHA record
- September 10, 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 | 15 | 10 | $3,882 | 0 |
| 2023 | 5 | 0 | $1,268 | 1 |
| 2024 | 6 | 1 | $882 | 0 |
| 2026 | 1 | 0 | $151 | 0 |
Standards cited most at Superior 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 50.30 | Reporting of accidents, injuries and illnesses | 4 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 2 |
| 30 CFR 50.20 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12013 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.3131 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Superior Plant
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
What the accident reports at Superior Plant describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 1 |
Other open mines in Tuscola County, Michigan
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Tca Pit | Tca Management, LLC | Tuscola County, MI | Construction sand and gravel | 3 | 30 |
| Mikinaak Sand and Gravel | Mikinaak Sand and Gravel LLC | Tuscola County, MI | Construction sand and gravel | 2 | 23 |
| Vassar Pit | Eggers Excavating, LLC | Tuscola County, MI | Construction sand and gravel | 3 | 17 |
| Wells Road Pit | Kig Enterprises LLC | Tuscola County, MI | Construction sand and gravel | 4 | 11 |
| Tuckey | R & R Concrete and Supply LLC | Tuscola County, MI | Construction sand and gravel | 1 | 9 |
| Snover Road Pit | G. Borek Excavating LLC | Tuscola County, MI | Construction sand and gravel | 2 | 4 |
| Karlstone | Thom Farms Inc | Tuscola County, MI | Construction sand and gravel | 2 | 4 |
| Superior 3 | Thumb Aggregate Sales LLC | Tuscola County, MI | Construction sand and gravel | 2 | 2 |
| Lobdell Mid Thumb Materials | Legacy Sand And Gravel LLC | Tuscola County, MI | Construction sand and gravel | 2 | 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.