ACTIVE / OPERATOR PORTFOLIO

Tri County Materials Inc

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

MSHA OPERATOR ID0066904

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
Tri County Materials Inc.0200728 · Active6/8 quarters reportedGraham, AZSurface · MSHA: Construction Sand and Gravel035,86721037.0

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

21

4 significant & substantial (S&S)

  1. 2025 Q15
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q20
  7. 2026 Q314
  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

1,548.00

7 of 21 violations with amounts

  1. 2025 Q11,246
  2. 2025 Q2—
  3. 2025 Q3151
  4. 2025 Q4—
  5. 2026 Q1151
  6. 2026 Q2—
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

37.00

5 inspections · 5 with hours

  1. 2025 Q16.00
  2. 2025 Q2—
  3. 2025 Q33.25
  4. 2025 Q4—
  5. 2026 Q112.50
  6. 2026 Q26.75
  7. 2026 Q38.50
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1511,246.000016.0
2025-Q200—000—
2025-Q310151.000013.3
2025-Q400—000—
2026-Q110151.0000112.5
2026-Q200—0016.8
2026-Q3143—0018.5
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5161704
    Tri County Materials Inc. · 0200728

    56.12004

  2. violation5161703
    Tri County Materials Inc. · 0200728

    56.14107(a)

  3. violation5161702
    Tri County Materials Inc. · 0200728

    56.14107(a) · S&S

  4. violation5161701
    Tri County Materials Inc. · 0200728

    56.12004

  5. violation5161700
    Tri County Materials Inc. · 0200728

    56.12032 · S&S

  6. violation5161699
    Tri County Materials Inc. · 0200728

    56.14100

  7. violation5161698
    Tri County Materials Inc. · 0200728

    56.18002 · S&S

  8. violation5161697
    Tri County Materials Inc. · 0200728

    56.12032

  9. violation5161696
    Tri County Materials Inc. · 0200728

    56.12018

  10. violation5161695
    Tri County Materials Inc. · 0200728

    56.12004

  11. violation5161694
    Tri County Materials Inc. · 0200728

    56.12032

  12. violation5161693
    Tri County Materials Inc. · 0200728

    56.14107(a)

  13. violation5161692
    Tri County Materials Inc. · 0200728

    56.14107(a)

  14. violation5161691
    Tri County Materials Inc. · 0200728

    56.14132(a)

  15. inspectionF04736C
    Tri County Materials Inc. · 0200728

    Regular Safety and Health Inspection · 8.5 on-site hours

  16. inspection6949060
    Tri County Materials Inc. · 0200728

    Compliance Follow-up Inspection · 6.8 on-site hours

  17. inspectionF032BEC
    Tri County Materials Inc. · 0200728

    Regular Safety and Health Inspection · 12.5 on-site hours

  18. violation5059098
    Tri County Materials Inc. · 0200728

    62.120 · $151.00 proposed

  19. inspectionF017EB9
    Tri County Materials Inc. · 0200728

    Regular Safety and Health Inspection · 3.3 on-site hours

  20. violation5058301
    Tri County Materials Inc. · 0200728

    50.30(a) · $151.00 proposed

  21. inspectionF00CC63
    Tri County Materials Inc. · 0200728

    Regular Safety and Health Inspection · 6.0 on-site hours

  22. violation9909385
    Tri County Materials Inc. · 0200728

    50.30(a) · $151.00 proposed

  23. violation9909384
    Tri County Materials Inc. · 0200728

    56.14112(a)(1) · S&S · $642.00 proposed

  24. violation9909383
    Tri County Materials Inc. · 0200728

    56.4201(a)(2) · $151.00 proposed

  25. violation9909382
    Tri County Materials Inc. · 0200728

    56.20003(a) · $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.