ACTIVE / CONTROLLER PORTFOLIO

Materials Marketing Ltd

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

MSHA CONTROLLER ID0105393

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-18. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Morgan Pit4103435 · Active6/8 quarters reportedWilliamson, TXSurface · MSHA: Dimension Limestone0191,08132463.3

LOCATION

Mine location

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

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

32

7 significant & substantial (S&S)

  1. 2025 Q13
  2. 2025 Q23
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q14
  6. 2026 Q222
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

4

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q12
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

6,086.00

31 of 32 violations with amounts

  1. 2025 Q1673
  2. 2025 Q2453
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q11,077
  6. 2026 Q23,883
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

63.25

6 inspections · 6 with hours

  1. 2025 Q18.75
  2. 2025 Q228.25
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q17.75
  6. 2026 Q218.50
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q132673.000018.8
2025-Q230453.0010328.3
2025-Q300—000—
2025-Q400—000—
2026-Q1411,077.002017.8
2026-Q22243,883.0000118.5
2026-Q300—100—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5009153
    Morgan Pit · 4103435

    Description not reported

  2. violation5009152
    Morgan Pit · 4103435

    56.12004 · $151.00 proposed

  3. violation5009151
    Morgan Pit · 4103435

    56.12019 · $151.00 proposed

  4. inspectionF03A7CD
    Morgan Pit · 4103435

    Regular Safety and Health Inspection · 7.8 on-site hours

  5. accident220261030011
    Morgan Pit · 4103435

    MACHINERY · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee was welding on 02/11/2026 and felt a little splinter of metal bothering EE's finger but initially did not seek treatment. The following day EE decided to seek treatment as it was still bothering EE's finger.

  6. accident220261030009
    Morgan Pit · 4103435

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee was walking towards the tumbler and slipped on some ice and struck EE's right knee on the ground. EE was treated at an urgent care, returned to work with restrictions for 5 days.

  7. inspectionF0126E1
    Morgan Pit · 4103435

    Compliance Follow-up Inspection · 10.8 on-site hours

  8. violation9795701
    Morgan Pit · 4103435

    62.130(a) · $151.00 proposed

  9. violation9795700
    Morgan Pit · 4103435

    56.4200(b)(2) · $151.00 proposed

  10. violation9795699
    Morgan Pit · 4103435

    56.14132(a) · $151.00 proposed

  11. inspectionF0126DC
    Morgan Pit · 4103435

    Regular Safety and Health Inspection · 15.0 on-site hours

  12. accident220251060027
    Morgan Pit · 4103435

    HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Employee works at a natural stone quarry in Jarrell, Texas. No conditions reported.

  13. inspectionF0126DB
    Morgan Pit · 4103435

    Verbal Hazard Complaint Inspections · 2.5 on-site hours

  14. inspectionF012617
    Morgan Pit · 4103435

    Regular Safety and Health Inspection · 8.8 on-site hours

  15. violation9795575
    Morgan Pit · 4103435

    56.6904 · S&S · $209.00 proposed

  16. violation9795574
    Morgan Pit · 4103435

    56.14100(b) · $151.00 proposed

  17. violation9795573
    Morgan Pit · 4103435

    56.14107(a) · S&S · $313.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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 operator.

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