Data / Mines / Michigan / Ottawa Lake Quarry
Ottawa Lake Quarry: 9 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Ottawa Lake Quarry is an intermittent crushed, broken limestone surface mine in Monroe County, Michigan, operated by Michigan Paving and Materials Company with 32 employees on MSHA's record (mine ID 2000041). Since January 1, 2022 MSHA inspectors issued 9 citations and orders there with $1,817 in proposed penalties, and 2 accident reports were filed there, with 2 injury or illness cases.
The request: Watch Ottawa Lake Quarry (MSHA mine ID 2000041) in Monroe County, Michigan: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2000041
- Status
- Intermittent since April 15, 2023
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Monroe County, Michigan
- Nearest town
- Owatta Lake
- Operator
- Michigan Paving and Materials Company
- Parent company
- CRH PLC
- Employees
- 32
- MSHA field office
- Lansing MI Field Office
- Citations and orders since January 1, 2022
- 9
- Significant and substantial
- 1 (11.1%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $1,817
- Amount paid so far
- $1,817
- Inspections
- 7
- Inspector hours on site
- 98
- Citations per inspection
- 1.29 (all mines 2.30)
- Accident reports
- 2
- Injury and illness cases
- 2
- Fatalities
- 0
- Latest MSHA record
- April 1, 2026
- Citations issued to contractors here
- 3 ($2,104 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 | 1 | 0 | $133 | 0 |
| 2023 | 2 | 0 | $286 | 0 |
| 2024 | 0 | 0 | $0 | 1 |
| 2025 | 1 | 0 | $151 | 1 |
| 2026 | 5 | 1 | $1,247 | 0 |
Standards cited most at Ottawa Lake Quarry
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 56.12004 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14205 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Ottawa Lake Quarry
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
| No lost time, or an occupational illness | 1 |
What the accident reports at Ottawa Lake Quarry describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Powered haulage | 1 |
| Handtools (nonpowered) | 1 |
Equipment named in accident reports at Ottawa Lake Quarry
| Equipment | Reports |
|---|---|
| Front-end loader | 1 |
| Hand tools (not powered) | 1 |
Other open mines in Monroe County, Michigan
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Sylvania Minerals | Sylvania Minerals LLC | Monroe County, MI | Crushed, broken limestone | 49 | 13 |
| Amrize Dundee Quarry | Amrize Great Lakes Inc. | Monroe County, MI | Construction sand and gravel | 7 | 8 |
| Denniston Quarry | Michigan Paving and Materials Company | Monroe County, MI | Crushed, broken limestone | 27 | 6 |
| Maybee Quarry | Michigan Paving and Materials Company | Monroe County, MI | Crushed, broken limestone | 23 | 6 |
| Newport | Michigan Paving and Materials Company | Monroe County, MI | Construction sand and gravel | 20 | 2 |
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.