Employee was manually moving a 55-gallon drum of DEF off of a containment pallet with the assistance of another employee. The drum shifted during moving, and the employee injured their right shoulder when they tried to steady the drum. Physician diagnosis unspecified injury of muscle(s) and tendon(s) of the rotator cuff of right shoulder.
FREDERICK GRINDING PLANT Metal/Non-Metal
TAMKO BUILDING PRODUCTS LLC
· Facility
Controlled by
David Humphreys
Buckeyestown,
Frederick County,
MD
·
Active
MSHA Mine ID: 1800750
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- Fatalities
- 0
- Total incidents
- 2
- Years on record
- 2004–2026
- Latest incident
- Mar 2026
Compliance record
MSHA citations since 2001
46
citations
7
significant & substantial
$4,817
proposed penalties
$4,757
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 4,151 | 0 | 0 | 0.0 |
| 2025 Q3 | 424 | 0 | 0 | 0.0 |
| 2025 Q2 | 2,575 | 0 | 0 | 0.0 |
| 2025 Q1 | 504 | 1 | 0 | 1984.1 |
| 2024 Q4 | 1,862 | 0 | 0 | 0.0 |
| 2024 Q3 | 157 | 1 | 0 | 6369.4 |
| 2024 Q2 | 2,714 | 0 | 0 | 0.0 |
| 2024 Q1 | 2,057 | 1 | 0 | 486.1 |
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.
Reportable incidents
2 on file2026 · 1 incident
TAMKO BUILDING PRODUCTS LLC · Over-exertion (Not Elsewhere Classified)
2004 · 1 incident
February 5, 2004
MD · Metal/Non-Metal
warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator
SLIP OR FALL OF PERSON
Florida Rock Industries Cement Grou · Fall to the walkway or working surface
THE CONDITION WAS COLD WEATHER, BELOW 32 DEGREES. YESTERDAY WAS ABOVE FREEZING SO SNOW BEGAN TO MELT AND LEFT PUDDLES OF WATER BY TRASH CAN (DUMPSTER). WATER REFROZE OVERNIGHT AND EMPLOYEE SLI PPED AND FELL. HE INJURED HIS LEFT ANKLE.