ACTIVE / CONTROLLER PORTFOLIO

John D Durkin

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

MSHA CONTROLLER ID0070591

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
Onyx Sterling Pit1901284 · Active6/8 quarters reportedWorcester, MASurface · MSHA: Crushed, Broken Stone NEC046,5176233.0

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

6

3 significant & substantial (S&S)

  1. 2025 Q14
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Accident records

2

0 records classified as fatality

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

Proposed penalties · USD

245,268.00

6 of 6 violations with amounts

  1. 2025 Q1244,966
  2. 2025 Q2151
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1—
  6. 2026 Q2—
  7. 2026 Q3151
  8. 2026 Q4 *—

On-site inspection hours

33.00

7 inspections · 7 with hours

  1. 2025 Q14.25
  2. 2025 Q214.50
  3. 2025 Q31.00
  4. 2025 Q44.00
  5. 2026 Q1—
  6. 2026 Q21.25
  7. 2026 Q38.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q143244,966.000014.3
2025-Q210151.0000114.5
2025-Q300—0011.0
2025-Q400—0024.0
2026-Q100—000—
2026-Q200—1011.3
2026-Q310151.001018.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. accident220262320009
    Onyx Sterling Pit · 1901284

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

    Accident narrative

    A mechanic working in the garage reported having some dirt in EE's eye. EE was not able to state a specific event on how the dirt got into EE's eye. After flushing the eye out, an appointment with an eye doctor was made so EE could be evaluated. It was determined that EE has a minor scratch on the eye and was prescribed antibiotic eye ointment.

  2. inspectionF023F91
    Onyx Sterling Pit · 1901284

    Regular Safety and Health Inspection · 8.0 on-site hours

  3. violation9939970
    Onyx Sterling Pit · 1901284

    56.12032 · $151.00 proposed

  4. accident220261070005
    Onyx Sterling Pit · 1901284

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    EE had a knee injury that was exacerbated as EE was walking through the garage after putting oil canisters away in a conex box behind the garage. EE felt a tweak in EE's left knee as EE stepped. On Wednesday 4/8/26 at approx 1PM, this injury was reported to have happened at work, and that it originated while shoveling one month prior near the scalper screen.

  5. inspection6929541
    Onyx Sterling Pit · 1901284

    Compliance Follow-up Inspection · 1.3 on-site hours

  6. inspection6929530
    Onyx Sterling Pit · 1901284

    Compliance Follow-up Inspection · 3.0 on-site hours

  7. inspectionF02E686
    Onyx Sterling Pit · 1901284

    Regular Safety and Health Inspection · 1.0 on-site hours

  8. inspection6929523
    Onyx Sterling Pit · 1901284

    Compliance Follow-up Inspection · 1.0 on-site hours

  9. violation9808313
    Onyx Sterling Pit · 1901284

    56.4201(a)(1) · $151.00 proposed

  10. inspectionF0032FC
    Onyx Sterling Pit · 1901284

    Regular Safety and Health Inspection · 14.5 on-site hours

  11. inspection6929519
    Onyx Sterling Pit · 1901284

    Compliance Follow-up Inspection · 4.3 on-site hours

  12. violation9808023
    Onyx Sterling Pit · 1901284

    56.23002(a) · $62,812.00 proposed

  13. violation9808021
    Onyx Sterling Pit · 1901284

    56.3401 · S&S · $62,812.00 proposed

  14. violation9808020
    Onyx Sterling Pit · 1901284

    56.3130 · S&S · $62,812.00 proposed

  15. violation9808019
    Onyx Sterling Pit · 1901284

    56.3200 · S&S · $56,530.00 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 operator.

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