ACTIVE / OPERATOR PORTFOLIO

Master Products Corp

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR IDL09852

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Quikrete5400299 · Active6/8 quarters reportedBayamon, PRSurface · MSHA: Crushed, Broken Sandstone0196,21112494.0

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

12

4 significant & substantial (S&S)

  1. 2025 Q15
  2. 2025 Q23
  3. 2025 Q32
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q21
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

4

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q22
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

7,790.00

12 of 12 violations with amounts

  1. 2025 Q12,194
  2. 2025 Q22,007
  3. 2025 Q31,888
  4. 2025 Q4—
  5. 2026 Q11,550
  6. 2026 Q2151
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

94.00

13 inspections · 13 with hours

  1. 2025 Q116.50
  2. 2025 Q211.50
  3. 2025 Q314.00
  4. 2025 Q4—
  5. 2026 Q128.50
  6. 2026 Q220.50
  7. 2026 Q33.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1522,194.0000116.5
2025-Q2302,007.0000111.5
2025-Q3211,888.0010314.0
2025-Q400—000—
2026-Q1111,550.0010328.5
2026-Q210151.0020420.5
2026-Q300—0013.0
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. inspectionF041BB3
    Quikrete · 5400299

    Special Emphasis Programs · 3.0 on-site hours

  2. inspectionF041BAC
    Quikrete · 5400299

    Compliance Follow-up Inspection · 2.0 on-site hours

  3. accident220261740001
    Quikrete · 5400299

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    On Tuesday, June 16, the R-Line 2 filling operator, at approximately 9:30 am, tried to lift a sack that EE did not fill properly from the left nozzle, injuring EE's left shoulder, causing strain of unspecified muscle, fascia and tendon at shoulder and upper arm level, left arm

  4. accident220261470007
    Quikrete · 5400299

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    On Monday, May 18, in the first shift, the operator of the r-line 1 area, suffered a sprained left shoulder, while placing 50-pound bags of product on a pallet.

  5. inspectionF02ACCE
    Quikrete · 5400299

    Compliance Follow-up Inspection · 2.0 on-site hours

  6. inspectionF02ACC9
    Quikrete · 5400299

    Regular Safety and Health Inspection · 14.0 on-site hours

  7. violation9829115
    Quikrete · 5400299

    56.14112(a)(1) · $151.00 proposed

  8. inspectionF02ACC2
    Quikrete · 5400299

    Compliance Follow-up Inspection · 2.5 on-site hours

  9. inspectionF02ACB7
    Quikrete · 5400299

    Compliance Follow-up Inspection · 2.0 on-site hours

  10. inspectionF02ACAF
    Quikrete · 5400299

    Compliance Follow-up Inspection · 8.0 on-site hours

  11. accident220260300025
    Quikrete · 5400299

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    In production area a miner was affected when in the task of filling big bags with final product where the thumb of the right hand was pricked between the ear of the big bag and fork section of the forklift

  12. violation9829104
    Quikrete · 5400299

    56.14100(b) · S&S · $1,550.00 proposed

  13. inspectionF02ACAB
    Quikrete · 5400299

    Regular Safety and Health Inspection · 18.5 on-site hours

  14. inspectionF02337E
    Quikrete · 5400299

    Compliance Follow-up Inspection · 1.0 on-site hours

  15. inspectionF023378
    Quikrete · 5400299

    Health Technical Investigation · 10.0 on-site hours

  16. violation9825526
    Quikrete · 5400299

    62.120 · $209.00 proposed

  17. inspectionF023377
    Quikrete · 5400299

    Spot Inspection · 3.0 on-site hours

  18. violation9825525
    Quikrete · 5400299

    56.15002 · S&S · $1,679.00 proposed

  19. accident220252450017
    Quikrete · 5400299

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    On the 23 of august 2025, at approximately 10:39am, a surface miner sustained a head injury after being accidentally struck by a sledgehammer that was in use during repair of entrance gate. The miner was moving a ladder when the sledgehammer fell from the top of the ladder, directly striking the top of their head. They suffered a scalp laceration with bleeding.

  20. violation9825481
    Quikrete · 5400299

    56.16005 · $1,431.00 proposed

  21. inspectionF016D0F
    Quikrete · 5400299

    Regular Safety and Health Inspection · 11.5 on-site hours

  22. violation9825480
    Quikrete · 5400299

    56.14101(a)(2) · $288.00 proposed

  23. violation9751366
    Quikrete · 5400299

    56.14101(a)(2) · $288.00 proposed

  24. violation9825435
    Quikrete · 5400299

    56.14100(b) · $151.00 proposed

  25. violation9825434
    Quikrete · 5400299

    56.14112(b) · $151.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

SELECTED PORTFOLIO

1 linked controller.

Relationships reflect the selected mine status and current MSHA controller/operator fields.