ACTIVE / OPERATOR PORTFOLIO

Martin Marietta ALTN Aggregates, Inc.

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

MSHA OPERATOR ID0200713

MINE PORTFOLIO

3 of 3 mines and facilities

2025-01-01 – 2026-10-17. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Lebanon Quarry & Mill4003012 · ActiveWilson, TNSurface · MSHA: Crushed, Broken Limestone NEC——3056.3
Murfreesboro Quarry & Mill4000053 · ActiveRutherford, TNSurface · MSHA: Crushed, Broken Limestone NEC——0035.0
Smyrna Quarry & Mill4002940 · ActiveRutherford, TNSurface · MSHA: Crushed, Broken Limestone NEC——2079.3

LOCATION

Portfolio map

3 of 3 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-17Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

5

1 significant & substantial (S&S)

  1. 2025 Q11
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q43
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

0

0 records classified as fatality

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

Proposed penalties · USD

849.00

5 of 5 violations with amounts

  1. 2025 Q1151
  2. 2025 Q2151
  3. 2025 Q3—
  4. 2025 Q4547
  5. 2026 Q1—
  6. 2026 Q2—
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

170.50

16 inspections · 16 with hours

  1. 2025 Q120.25
  2. 2025 Q225.50
  3. 2025 Q30.50
  4. 2025 Q456.75
  5. 2026 Q128.00
  6. 2026 Q215.50
  7. 2026 Q324.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q110151.0000320.3
2025-Q210151.0000325.5
2025-Q300—0010.5
2025-Q431547.0000356.8
2026-Q100—00228.0
2026-Q200—00115.5
2026-Q300—00324.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF046773
    Smyrna Quarry & Mill · 4002940

    Spot Inspection · 9.8 on-site hours

  2. inspectionF046771
    Murfreesboro Quarry & Mill · 4000053

    Regular Safety and Health Inspection · 4.3 on-site hours

  3. inspectionF03F5F8
    Lebanon Quarry & Mill · 4003012

    Regular Safety and Health Inspection · 10.0 on-site hours

  4. inspectionF01522D
    Smyrna Quarry & Mill · 4002940

    Regular Safety and Health Inspection · 15.5 on-site hours

  5. inspectionF03F5D9
    Lebanon Quarry & Mill · 4003012

    Spot Inspection · 17.0 on-site hours

  6. inspectionF015CC3
    Murfreesboro Quarry & Mill · 4000053

    Spot Inspection · 11.0 on-site hours

  7. inspectionF015CAD
    Murfreesboro Quarry & Mill · 4000053

    Regular Safety and Health Inspection · 7.0 on-site hours

  8. inspectionF02D951
    Smyrna Quarry & Mill · 4002940

    Regular Safety and Health Inspection · 31.0 on-site hours

  9. violation9757333
    Smyrna Quarry & Mill · 4002940

    56.4430(a)(3) · S&S · $245.00 proposed

  10. violation9754343
    Lebanon Quarry & Mill · 4003012

    56.12019 · $151.00 proposed

  11. violation9754342
    Lebanon Quarry & Mill · 4003012

    56.14112(a)(1) · $151.00 proposed

  12. inspectionF01521C
    Lebanon Quarry & Mill · 4003012

    Regular Safety and Health Inspection · 18.8 on-site hours

  13. inspectionF0224DE
    Lebanon Quarry & Mill · 4003012

    Special Emphasis Programs · 0.5 on-site hours

  14. inspection6920234
    Murfreesboro Quarry & Mill · 4000053

    Regular Safety and Health Inspection · 9.5 on-site hours

  15. inspectionF0224D9
    Smyrna Quarry & Mill · 4002940

    Regular Safety and Health Inspection · 8.5 on-site hours

  16. violation9759553
    Lebanon Quarry & Mill · 4003012

    41.12 · $151.00 proposed

  17. inspectionF01FFF2
    Lebanon Quarry & Mill · 4003012

    Regular Safety and Health Inspection · 7.5 on-site hours

  18. inspectionF01277C
    Smyrna Quarry & Mill · 4002940

    Regular Safety and Health Inspection · 14.5 on-site hours

  19. violation9757279
    Smyrna Quarry & Mill · 4002940

    47.44(a)(1) · $151.00 proposed

  20. inspectionF01561B
    Murfreesboro Quarry & Mill · 4000053

    Regular Safety and Health Inspection · 3.3 on-site hours

  21. inspectionF01561C
    Lebanon Quarry & Mill · 4003012

    Regular Safety and Health Inspection · 2.5 on-site hours

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.

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.