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

Intermittent Surface SandAndGravel

Operator: RMR Aggregate Inc

Controller: Raymond T O'Brien

Location: Conrad, Pondera County, MT

Employees: 2

48
Violations
4
S&S Violations
0
Accidents
$5K
Penalties

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

MSHA Mine ID2402219
Mine TypeSurface
StatusIntermittent
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees2
Days/Week4.0
Hours/Shift10.0
Coordinates48.1702780, -111.9461110
Nearest TownConrad

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.