Key Takeaway
COY STONE PLANT ADDITION is a active surface mine producing Stone, located in Jefferson City, Jefferson County, TN. It has 16 violations on record (2 S&S) and $1K in proposed penalties. Operated by Martin Marietta Southeast Agg Operations, LLC.
COY STONE PLANT ADDITION
Operator: Martin Marietta Southeast Agg Operations, LLC
Controller: Martin Marietta Materials Inc
Location: Jefferson City, Jefferson County, TN
Employees: 2
Recent Violations
View all 16 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 01/14/2026 | 56.12001 | Non-S&S | ModNegligence | $151 |
| 10/02/2025 | 56.14107(a) | Non-S&S | ModNegligence | $0 |
| 06/20/2024 | 56.20003(a) | Non-S&S | LowNegligence | $147 |
| 08/25/2023 | 56.11001 | Non-S&S | LowNegligence | $143 |
| 01/09/2020 | 56.18002(d) | Non-S&S | ModNegligence | $123 |
| 08/08/2014 | 56.14132(a) | Non-S&S | ModNegligence | $100 |
| 04/15/2008 | 47.41(a)(1) | Non-S&S | ModNegligence | $100 |
| 03/16/2005 | 50.20-1 | Non-S&S | ModNegligence | $60 |
| 11/03/2004 | 56.4402 | S&S | ModNegligence | $124 |
| 11/03/2004 | 56.12030 | Non-S&S | ModNegligence | $60 |
| 11/03/2004 | 56.20003(a) | Non-S&S | ModNegligence | $60 |
| 05/04/2004 | 56.14115(b) | Non-S&S | ModNegligence | $60 |
| 05/20/2003 | 56.20003(a) | Non-S&S | LowNegligence | $60 |
| 06/20/2002 | 56.13015(a) | Non-S&S | ModNegligence | $55 |
| 04/10/2000 | 56.14132(a) | Non-S&S | ModNegligence | $55 |
| 04/10/2000 | 56.14131(a) | S&S | ModNegligence | $161 |
Accidents & Injuries
View all 1 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/09/2004 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 38d lost, 53d restricted |
Inspections
View all 64 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 03/03/2026 | 03/03/2026 | 0.00 | 0 |
| 01/14/2026 | 01/21/2026 | 23.00 | 1 |
| 10/01/2025 | 10/06/2025 | 11.50 | 1 |
| 08/14/2025 | 08/18/2025 | 9.75 | 1 |
| 11/04/2024 | 11/05/2024 | 7.50 | 1 |
| 06/20/2024 | 06/26/2024 | 8.00 | 1 |
| 11/29/2023 | 11/29/2023 | 6.50 | 1 |
| 09/07/2023 | 09/11/2023 | 15.00 | 1 |
| 08/25/2023 | 08/25/2023 | 11.00 | 1 |
| 06/20/2023 | 06/20/2023 | 9.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does COY STONE PLANT ADDITION have?
COY STONE PLANT ADDITION has 16 MSHA violations on record, of which 2 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $1K.
What type of mine is COY STONE PLANT ADDITION?
COY STONE PLANT ADDITION is a Surface mine producing Stone, located in Jefferson City, Jefferson County, TN. It currently has 2 employees.
Has anyone been injured or killed at COY STONE PLANT ADDITION?
According to MSHA records, COY STONE PLANT ADDITION has 1 reported accident/injury records and 0 fatalities on file.
Who operates COY STONE PLANT ADDITION?
COY STONE PLANT ADDITION is operated by Martin Marietta Southeast Agg Operations, LLC and controlled by Martin Marietta Materials Inc. MSHA Mine ID: 4002465.