Key Takeaway
Portage Operation is a active facility mine producing Stone, located in Portage, Porter County, IN. It has 169 violations on record (40 S&S) and $36K in proposed penalties. Operated by O-N Minerals Portage Company LLC.
Portage Operation
Operator: O-N Minerals Portage Company LLC
Controller: Carmeuse Holding SA
Location: Portage, Porter County, IN
Employees: 11
Recent Violations
View all 169 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/12/2026 | 56.12030 | Non-S&S | LowNegligence | $0 |
| 02/12/2026 | 56.12018 | Non-S&S | LowNegligence | $0 |
| 02/12/2026 | 56.12004 | S&S | ModNegligence | $0 |
| 08/07/2025 | 56.14100(b) | Non-S&S | LowNegligence | $151 |
| 03/13/2025 | 56.16005 | Non-S&S | ModNegligence | $151 |
| 03/13/2025 | 56.12032 | S&S | ModNegligence | $267 |
| 03/13/2025 | 56.14107(a) | S&S | ModNegligence | $398 |
| 03/13/2025 | 56.13021 | S&S | ModNegligence | $267 |
| 06/12/2024 | 56.12006 | Non-S&S | LowNegligence | $147 |
| 06/12/2024 | 56.12028 | Non-S&S | ModNegligence | $172 |
| 06/12/2024 | 56.4401 | Non-S&S | ModNegligence | $147 |
| 02/08/2024 | 56.12028 | Non-S&S | ModNegligence | $147 |
| 05/23/2023 | 56.20003(a) | Non-S&S | ModNegligence | $143 |
| 05/23/2023 | 56.14132(a) | Non-S&S | ModNegligence | $167 |
| 05/23/2023 | 56.14107(a) | S&S | ModNegligence | $376 |
| 05/23/2023 | 56.4200(b)(2) | Non-S&S | ModNegligence | $143 |
| 05/23/2023 | 56.13021 | Non-S&S | ModNegligence | $143 |
| 05/23/2023 | 56.12030 | Non-S&S | ModNegligence | $143 |
| 10/25/2022 | 56.12004 | S&S | ModNegligence | $774 |
| 10/25/2022 | 56.14132(a) | Non-S&S | ModNegligence | $133 |
Accidents & Injuries
View all 11 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 04/10/2024 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 12/08/2016 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/28/2016 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/01/2016 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/25/2015 | POWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 02/15/2014 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/13/2012 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 39d restricted |
| 11/13/2009 | ELECTRICAL | DAYS AWAY FROM WORK ONLY | 128d lost |
| 07/07/2005 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/13/2004 | MACHINERY | DAYS RESTRICTED ACTIVITY ONLY | 15d restricted |
Inspections
View all 62 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/12/2026 | 02/12/2026 | 11.25 | 1 |
| 08/07/2025 | 08/07/2025 | 6.00 | 1 |
| 03/13/2025 | 03/13/2025 | 20.25 | 1 |
| 06/12/2024 | 07/08/2024 | 12.25 | 1 |
| 02/07/2024 | 02/08/2024 | 17.00 | 1 |
| 05/22/2023 | 05/23/2023 | 13.25 | 1 |
| 10/24/2022 | 10/25/2022 | 23.00 | 1 |
| 05/24/2022 | 05/25/2022 | 9.00 | 1 |
| 02/22/2022 | 02/23/2022 | 9.25 | 1 |
| 05/24/2021 | 05/26/2021 | 14.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Portage Operation have?
Portage Operation has 169 MSHA violations on record, of which 40 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $36K.
What type of mine is Portage Operation?
Portage Operation is a Facility mine producing Stone, located in Portage, Porter County, IN. It currently has 11 employees.
Has anyone been injured or killed at Portage Operation?
According to MSHA records, Portage Operation has 11 reported accident/injury records and 0 fatalities on file.
Who operates Portage Operation?
Portage Operation is operated by O-N Minerals Portage Company LLC and controlled by Carmeuse Holding SA. MSHA Mine ID: 1202117.