Key Takeaway
Ottawa Lake Quarry is a intermittent surface mine producing Stone, located in Owatta Lake, Monroe County, MI. It has 43 violations on record (6 S&S) and $12K in proposed penalties. Operated by Michigan Materials and Aggregates Co.
Ottawa Lake Quarry
Operator: Michigan Materials and Aggregates Co
Controller: CRH PLC
Location: Owatta Lake, Monroe County, MI
Employees: 32
Recent Violations
View all 43 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 08/08/2025 | 56.12004 | Non-S&S | LowNegligence | $151 |
| 10/12/2023 | 56.14112(b) | Non-S&S | ModNegligence | $143 |
| 10/12/2023 | 56.20003(a) | Non-S&S | ModNegligence | $143 |
| 10/11/2023 | 56.14207 | Non-S&S | LowNegligence | $143 |
| 02/28/2023 | 50.30(a) | Non-S&S | LowNegligence | $143 |
| 06/15/2022 | 56.12032 | Non-S&S | ModNegligence | $133 |
| 06/03/2021 | 56.14107(a) | Non-S&S | ModNegligence | $125 |
| 06/03/2021 | 56.15014 | Non-S&S | ModNegligence | $125 |
| 08/25/2020 | 56.14132(a) | Non-S&S | ModNegligence | $185 |
| 08/25/2020 | 56.14100(c) | Non-S&S | ModNegligence | $123 |
| 07/01/2020 | 50.20-1 | Non-S&S | LowNegligence | $123 |
| 11/05/2019 | 62.120 | Non-S&S | ModNegligence | $121 |
| 11/05/2019 | 62.130(a) | Non-S&S | ModNegligence | $121 |
| 11/04/2019 | 56.4201(a)(2) | Non-S&S | ModNegligence | $121 |
| 11/04/2019 | 56.4201(a)(2) | Non-S&S | ModNegligence | $121 |
| 09/11/2018 | 56.3200 | Non-S&S | ModNegligence | $177 |
| 01/05/2016 | 46.8(a)(2) | Non-S&S | ModNegligence | $112 |
| 01/05/2016 | 56.14107(a) | Non-S&S | ModNegligence | $243 |
| 01/05/2016 | 56.14130(c) | Non-S&S | LowNegligence | $100 |
| 01/04/2016 | 56.14100(c) | S&S | ModNegligence | $162 |
Accidents & Injuries
View all 19 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/21/2025 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 5d restricted |
| 08/05/2024 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 04/25/2017 | POWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/23/2016 | POWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 07/10/2016 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/27/2013 | MACHINERY | DAYS RESTRICTED ACTIVITY ONLY | 40d restricted |
| 10/08/2013 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/25/2008 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/03/2006 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 05/26/2006 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 54 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 08/07/2025 | 08/08/2025 | 25.25 | 1 |
| 10/11/2023 | 10/13/2023 | 26.25 | 1 |
| 08/31/2023 | 09/01/2023 | 18.50 | 1 |
| 02/27/2023 | 02/28/2023 | 19.75 | 1 |
| 06/15/2022 | 06/15/2022 | 12.50 | 1 |
| 12/08/2021 | 12/09/2021 | 15.00 | 1 |
| 06/01/2021 | 06/03/2021 | 26.75 | 1 |
| 03/02/2021 | 03/03/2021 | 26.00 | 1 |
| 08/24/2020 | 08/31/2020 | 27.25 | 1 |
| 06/29/2020 | 07/02/2020 | 6.25 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Ottawa Lake Quarry have?
Ottawa Lake Quarry has 43 MSHA violations on record, of which 6 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $12K.
What type of mine is Ottawa Lake Quarry?
Ottawa Lake Quarry is a Surface mine producing Stone, located in Owatta Lake, Monroe County, MI. It currently has 32 employees.
Has anyone been injured or killed at Ottawa Lake Quarry?
According to MSHA records, Ottawa Lake Quarry has 19 reported accident/injury records and 1 fatalities on file.
Who operates Ottawa Lake Quarry?
Ottawa Lake Quarry is operated by Michigan Materials and Aggregates Co and controlled by CRH PLC. MSHA Mine ID: 2000041.