ACTIVE / CONTROLLER PORTFOLIO
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MINE PORTFOLIO
2025-01-01 – 2026-10-17. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Martin Stone Quarries Inc3600150 · Active | Berks, PASurface · MSHA: Crushed, Broken Sandstone | — | — | 2 | 4 | 45.3 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. All 1 mines listed under this controller were checked; 0 have reports in the available quarters. Totals use current ownership.
reported short tons
reported employee hours
production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
2025-01-01 – 2026-10-17
0 significant & substantial (S&S)
0 records classified as fatality
2 of 2 violations with amounts
3 inspections · 3 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2025-Q2 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2025-Q3 | 2 | 0 | 302.00 | 0 | 0 | 1 | 26.5 |
| 2025-Q4 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 1 | 7.5 |
| 2026-Q2 | 0 | 0 | — | 1 | 0 | 1 | 11.3 |
| 2026-Q3 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
All violations issued in the selected period. Counts combine subsections.
| Section | Violations | S&S |
|---|---|---|
| 30 CFR 56.14101Brakes. | 1 | 0 |
| 30 CFR 56.14107Moving machine parts. | 1 | 0 |
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Employee was using a ratchet wrench when tightening on a bolt, it slipped out of employee's left hand, and EE's hand hit a piece of steel, lacerating the palm of EE's hand.
Regular Safety and Health Inspection · 11.3 on-site hours
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Employee was putting a shop rag into the haul truck's door to stop the "rattling" sound and when closing the door, they had slammed the door on their right middle finger.
Regular Safety and Health Inspection · 7.5 on-site hours
56.14107(a) · $151.00 proposed
Regular Safety and Health Inspection · 26.5 on-site hours
56.14101(a)(2) · $151.00 proposed
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Employee was exiting the #7 excavator. We have had several days of rain, it was a light drizzle and the ground was muddy. EE felt EE's left foot start to slip, and EE grabbed the handrails and caught self before falling. EE didn't fall, but EE's feet slipped around and EE felt a sharp pain in EE's lower back.
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Employee was lifting a 70lb battery from a pickup truck into the cabinet of an excavator. No pain was noted at the time, but later in the evening while taking a shower, employee noticed a protruding lump on the right side around the belt/waistline area. This has since been diagnosed as a hernia and surgery has been scheduled.
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
Relationships reflect the selected mine status and current MSHA controller/operator fields.