Key Takeaway
Mill Creek Plant #37 is a active surface mine producing Nonmetal, located in Mill Creek, Johnston County, OK. It has 107 violations on record (9 S&S) and $12K in proposed penalties. Operated by U.S. Silica Company, LLC.
Mill Creek Plant #37
Operator: U.S. Silica Company, LLC
Controller: USS Holdings Inc
Location: Mill Creek, Johnston County, OK
Employees: 23
Recent Violations
View all 107 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 07/30/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 07/30/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 07/30/2025 | 56.12028 | Non-S&S | ModNegligence | $177 |
| 05/08/2024 | 56.14207 | Non-S&S | ModNegligence | $147 |
| 05/08/2024 | 56.16006 | Non-S&S | ModNegligence | $147 |
| 05/08/2024 | 47.41(a)(1) | Non-S&S | ModNegligence | $147 |
| 05/08/2024 | 56.4104(b) | Non-S&S | ModNegligence | $147 |
| 01/24/2024 | 56.14101(a)(2) | Non-S&S | ModNegligence | $147 |
| 01/23/2024 | 56.20003(a) | Non-S&S | ModNegligence | $147 |
| 07/10/2023 | 56.4200(b)(2) | Non-S&S | ModNegligence | $143 |
| 07/10/2023 | 56.12018 | Non-S&S | ModNegligence | $143 |
| 06/27/2023 | 56.12018 | Non-S&S | ModNegligence | $182 |
| 07/25/2022 | 56.4201(a)(2) | Non-S&S | ModNegligence | $133 |
| 06/03/2021 | 56.12004 | Non-S&S | ModNegligence | $125 |
| 03/09/2021 | 47.41(a) | Non-S&S | ModNegligence | $125 |
| 03/08/2021 | 56.4104(a) | Non-S&S | ModNegligence | $125 |
| 04/06/2020 | 56.17001 | S&S | LowNegligence | $123 |
| 01/08/2020 | 46.9(a) | Non-S&S | ModNegligence | $123 |
| 05/16/2019 | 56.12025 | Non-S&S | ModNegligence | $121 |
| 01/04/2018 | 56.12040 | Non-S&S | LowNegligence | $118 |
Accidents & Injuries
View all 40 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/01/2024 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 9d lost, 90d restricted |
| 02/20/2024 | MACHINERY | DAYS RESTRICTED ACTIVITY ONLY | 6d restricted |
| 11/15/2019 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 41d restricted |
| 07/21/2019 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 22d restricted |
| 06/19/2019 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 07/10/2017 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 129d lost |
| 06/02/2013 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 6d restricted |
| 03/09/2013 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
| 12/06/2012 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 30d lost, 21d restricted |
| 11/27/2012 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 67 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/30/2025 | 12/30/2025 | 14.50 | 1 |
| 07/29/2025 | 07/30/2025 | 23.25 | 1 |
| 10/07/2024 | 10/09/2024 | 13.50 | 1 |
| 05/07/2024 | 05/09/2024 | 18.50 | 1 |
| 01/23/2024 | 01/25/2024 | 20.00 | 1 |
| 07/10/2023 | 07/11/2023 | 11.50 | 1 |
| 06/27/2023 | 01/01/2024 | 1.00 | 1 |
| 04/03/2023 | 04/05/2023 | 21.75 | 1 |
| 07/25/2022 | 07/28/2022 | 15.00 | 1 |
| 01/31/2022 | 02/02/2022 | 25.75 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Mill Creek Plant #37 have?
Mill Creek Plant #37 has 107 MSHA violations on record, of which 9 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $12K.
What type of mine is Mill Creek Plant #37?
Mill Creek Plant #37 is a Surface mine producing Nonmetal, located in Mill Creek, Johnston County, OK. It currently has 23 employees.
Has anyone been injured or killed at Mill Creek Plant #37?
According to MSHA records, Mill Creek Plant #37 has 40 reported accident/injury records and 0 fatalities on file.
Who operates Mill Creek Plant #37?
Mill Creek Plant #37 is operated by U.S. Silica Company, LLC and controlled by USS Holdings Inc. MSHA Mine ID: 3400377.