Data / Mines / Michigan / Gerken Materials- Hillsdale Plant
Gerken Materials- Hillsdale Plant: 12 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Gerken Materials- Hillsdale Plant is an active construction sand and gravel surface mine in Hillsdale County, Michigan, operated by Gerken Materials Inc with 2 employees on MSHA's record (mine ID 2002344). Since January 1, 2022 MSHA inspectors issued 12 citations and orders there with $1,692 in proposed penalties, and 1 accident report was filed there, with 1 injury or illness case.
The request: Watch Gerken Materials- Hillsdale Plant (MSHA mine ID 2002344) in Hillsdale County, Michigan: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2002344
- Status
- Active since May 14, 2015
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Hillsdale County, Michigan
- Nearest town
- Hillsdale
- Operator
- Gerken Materials Inc
- Employees
- 2
- MSHA field office
- Lansing MI Field Office
- Citations and orders since January 1, 2022
- 12
- Significant and substantial
- 4 (33.3%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $1,692
- Amount paid so far
- $1,692
- Inspections
- 11
- Inspector hours on site
- 92
- Citations per inspection
- 1.09 (all mines 2.30)
- Accident reports
- 1
- Injury and illness cases
- 1
- Fatalities
- 0
- Latest MSHA record
- June 16, 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 | 6 | 3 | $798 | 0 |
| 2024 | 3 | 0 | $441 | 0 |
| 2025 | 1 | 0 | $151 | 0 |
| 2026 | 2 | 1 | $302 | 1 |
Standards cited most at Gerken Materials- Hillsdale 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 56.20003 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4203 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12021 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Gerken Materials- Hillsdale Plant
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| No lost time, or an occupational illness | 1 |
What the accident reports at Gerken Materials- Hillsdale Plant describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 1 |
Other open mines in Hillsdale County, Michigan
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Moscow | Michigan Paving and Materials Company | Hillsdale County, MI | Construction sand and gravel | 11 | 8 |
| Larry Siegel Exc. | Larry Siegel Excavating | Hillsdale County, MI | Construction sand and gravel | 2 | 6 |
| Jonesville | Gerken Materials Inc | Hillsdale County, MI | Construction sand and gravel | 6 | 5 |
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.