Key Takeaway
Post Operation is a active surface mine producing SandAndGravel, located in Edmond, Oklahoma County, OK. It has 76 violations on record (13 S&S) and $32K in proposed penalties. Operated by SCHWARZ SAND, LLC.
Post Operation
Operator: SCHWARZ SAND, LLC
Controller: Philip J Schwarz Et At; Gene J Schwarz
Location: Edmond, Oklahoma County, OK
Employees: 6
Recent Violations
View all 76 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/01/2025 | 56.14207 | Non-S&S | ModNegligence | $151 |
| 10/01/2025 | 47.41(a) | Non-S&S | ModNegligence | $151 |
| 10/01/2025 | 56.4101 | Non-S&S | ModNegligence | $151 |
| 09/08/2025 | 46.9(a) | Non-S&S | ModNegligence | $151 |
| 06/30/2025 | 56.20003(a) | Non-S&S | ModNegligence | $151 |
| 03/05/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 03/05/2025 | 56.23002(a) | Non-S&S | ModNegligence | $151 |
| 08/15/2023 | 41.12 | Non-S&S | ModNegligence | $143 |
| 01/03/2022 | 56.14132(a) | Non-S&S | ModNegligence | $133 |
| 01/03/2022 | 56.4201(a)(2) | Non-S&S | ModNegligence | $133 |
| 05/19/2021 | 56.14107(a) | Non-S&S | ModNegligence | $125 |
| 11/04/2020 | 56.12004 | Non-S&S | ModNegligence | $123 |
| 03/19/2020 | 56.14100(b) | Non-S&S | ModNegligence | $123 |
| 03/19/2020 | 56.12026 | Non-S&S | LowNegligence | $123 |
| 01/08/2020 | 56.14112(b) | Non-S&S | ModNegligence | $123 |
| 05/13/2019 | 56.12019 | Non-S&S | ModNegligence | $121 |
| 05/13/2019 | 56.12032 | Non-S&S | ModNegligence | $121 |
| 05/13/2019 | 56.14107(a) | Non-S&S | ModNegligence | $121 |
| 05/02/2018 | 56.4201(a)(2) | Non-S&S | ModNegligence | $118 |
| 08/09/2017 | 56.12019 | Non-S&S | ModNegligence | $116 |
Accidents & Injuries
View all 3 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 02/02/2012 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 26d restricted |
| 06/05/2009 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 02/18/2008 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 6d restricted |
Inspections
View all 43 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/01/2025 | 10/02/2025 | 10.50 | 1 |
| 09/08/2025 | 09/08/2025 | 7.25 | 1 |
| 06/30/2025 | 07/01/2025 | 9.00 | 1 |
| 03/03/2025 | 03/05/2025 | 13.00 | 1 |
| 11/13/2023 | 11/14/2023 | 5.50 | 1 |
| 08/15/2023 | 08/15/2023 | 3.00 | 1 |
| 01/03/2022 | 01/05/2022 | 11.00 | 1 |
| 09/20/2021 | 09/20/2021 | 3.50 | 1 |
| 05/27/2021 | 05/27/2021 | 2.25 | 1 |
| 05/18/2021 | 05/19/2021 | 8.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Post Operation have?
Post Operation has 76 MSHA violations on record, of which 13 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $32K.
What type of mine is Post Operation?
Post Operation is a Surface mine producing SandAndGravel, located in Edmond, Oklahoma County, OK. It currently has 6 employees.
Has anyone been injured or killed at Post Operation?
According to MSHA records, Post Operation has 3 reported accident/injury records and 0 fatalities on file.
Who operates Post Operation?
Post Operation is operated by SCHWARZ SAND, LLC and controlled by Philip J Schwarz Et At; Gene J Schwarz. MSHA Mine ID: 3402044.