Key Takeaway
Portable Screen is a active surface mine producing SandAndGravel, located in Libby, Lincoln County, MT. It has 34 violations on record (3 S&S) and $4K in proposed penalties. Operated by Noble Excavating Inc.
Portable Screen
Operator: Noble Excavating Inc
Controller: Christopher J Noble
Location: Libby, Lincoln County, MT
Employees: 4
Recent Violations
View all 34 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 03/06/2025 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 08/07/2024 | 56.12018 | Non-S&S | ModNegligence | $147 |
| 08/07/2024 | 50.30(a) | Non-S&S | LowNegligence | $147 |
| 06/22/2022 | 56.4201(a)(2) | Non-S&S | ModNegligence | $133 |
| 03/24/2020 | 50.30(a) | Non-S&S | LowNegligence | $123 |
| 08/27/2019 | 56.9100(b) | Non-S&S | ModNegligence | $121 |
| 08/27/2019 | 56.9100(a) | Non-S&S | ModNegligence | $121 |
| 08/27/2019 | 56.1000 | Non-S&S | ModNegligence | $121 |
| 08/27/2019 | 56.12004 | Non-S&S | ModNegligence | $121 |
| 08/27/2019 | 56.18002(a) | Non-S&S | ModNegligence | $121 |
| 08/13/2018 | 56.1000 | Non-S&S | ModNegligence | $118 |
| 06/06/2017 | 56.4101 | Non-S&S | LowNegligence | $116 |
| 06/06/2017 | 47.41(a) | Non-S&S | LowNegligence | $116 |
| 07/26/2016 | 56.9300(a) | Non-S&S | ModNegligence | $114 |
| 07/26/2016 | 46.9(b)(5) | Non-S&S | ModNegligence | $114 |
| 07/26/2016 | 46.3(b) | Non-S&S | ModNegligence | $114 |
| 01/06/2012 | 50.30(a) | Non-S&S | LowNegligence | $100 |
| 11/01/2011 | 56.14132(a) | S&S | ModNegligence | $243 |
| 11/01/2011 | 56.4201(a)(2) | Non-S&S | ModNegligence | $100 |
| 11/01/2011 | 56.18002(a) | Non-S&S | ModNegligence | $100 |
Inspections
View all 30 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/08/2025 | 12/09/2025 | 11.00 | 1 |
| 08/18/2025 | 08/21/2025 | 15.75 | 1 |
| 03/05/2025 | 03/06/2025 | 10.25 | 1 |
| 08/06/2024 | 08/07/2024 | 13.25 | 1 |
| 02/05/2024 | 02/08/2024 | 8.50 | 1 |
| 05/30/2023 | 05/31/2023 | 9.75 | 1 |
| 10/31/2022 | 11/01/2022 | 6.50 | 1 |
| 06/21/2022 | 06/22/2022 | 15.00 | 1 |
| 09/01/2021 | 09/01/2021 | 12.00 | 1 |
| 03/23/2020 | 03/24/2020 | 18.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Portable Screen have?
Portable Screen has 34 MSHA violations on record, of which 3 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $4K.
What type of mine is Portable Screen?
Portable Screen is a Surface mine producing SandAndGravel, located in Libby, Lincoln County, MT. It currently has 4 employees.
Has anyone been injured or killed at Portable Screen?
According to MSHA records, Portable Screen has 0 reported accident/injury records and 0 fatalities on file.
Who operates Portable Screen?
Portable Screen is operated by Noble Excavating Inc and controlled by Christopher J Noble. MSHA Mine ID: 2402402.