Key Takeaway
O'Brien Pit is a intermittent surface mine producing SandAndGravel, located in Conrad, Pondera County, MT. It has 48 violations on record (4 S&S) and $5K in proposed penalties. Operated by RMR Aggregate Inc.
O'Brien Pit
Operator: RMR Aggregate Inc
Controller: Raymond T O'Brien
Location: Conrad, Pondera County, MT
Employees: 2
Recent Violations
View all 48 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 07/16/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 04/16/2025 | 50.30(a) | Non-S&S | LowNegligence | $151 |
| 10/16/2024 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 06/15/2023 | 56.12018 | Non-S&S | ModNegligence | $143 |
| 06/15/2023 | 50.30(a) | Non-S&S | HighNegligence | $143 |
| 03/29/2022 | 50.30(a) | Non-S&S | HighNegligence | $133 |
| 05/06/2021 | 56.12028 | Non-S&S | ModNegligence | $125 |
| 09/10/2020 | 50.30(a) | Non-S&S | ModNegligence | $123 |
| 09/10/2020 | 56.11003 | Non-S&S | ModNegligence | $123 |
| 09/10/2020 | 47.41(a) | Non-S&S | ModNegligence | $123 |
| 05/22/2019 | 56.9300(a) | S&S | ModNegligence | $121 |
| 06/25/2018 | 56.12013 | Non-S&S | ModNegligence | $118 |
| 06/25/2018 | 56.4201(a)(2) | Non-S&S | ModNegligence | $118 |
| 01/24/2018 | 56.4201(a)(2) | Non-S&S | ModNegligence | $118 |
| 03/15/2017 | 56.4201(a)(2) | Non-S&S | ModNegligence | $116 |
| 10/14/2015 | 56.12028 | Non-S&S | ModNegligence | $100 |
| 10/14/2015 | 50.30(a) | Non-S&S | ModNegligence | $100 |
| 10/14/2015 | 56.14207 | Non-S&S | LowNegligence | $100 |
| 10/13/2015 | 56.12023 | Non-S&S | LowNegligence | $100 |
| 10/13/2015 | 56.20003(a) | S&S | ModNegligence | $100 |
Inspections
View all 33 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 08/05/2025 | 08/06/2025 | 11.75 | 1 |
| 08/05/2024 | 08/05/2024 | 5.00 | 1 |
| 06/13/2023 | 06/15/2023 | 7.50 | 1 |
| 03/29/2022 | 03/29/2022 | 13.00 | 1 |
| 05/06/2021 | 05/06/2021 | 16.00 | 1 |
| 09/09/2020 | 09/10/2020 | 13.00 | 1 |
| 03/24/2020 | 03/25/2020 | 1.50 | 1 |
| 05/22/2019 | 05/22/2019 | 12.50 | 1 |
| 01/10/2019 | 01/10/2019 | 2.00 | 1 |
| 06/25/2018 | 06/25/2018 | 13.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does O'Brien Pit have?
O'Brien Pit has 48 MSHA violations on record, of which 4 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $5K.
What type of mine is O'Brien Pit?
O'Brien Pit is a Surface mine producing SandAndGravel, located in Conrad, Pondera County, MT. It currently has 2 employees.
Has anyone been injured or killed at O'Brien Pit?
According to MSHA records, O'Brien Pit has 0 reported accident/injury records and 0 fatalities on file.
Who operates O'Brien Pit?
O'Brien Pit is operated by RMR Aggregate Inc and controlled by Raymond T O'Brien. MSHA Mine ID: 2402219.