Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Dolomite Group
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL17589
MINE PORTFOLIO
8 of 8 mines and facilities
2025-01-01 – 2026-10-13. 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 |
|---|---|---|---|---|---|---|
| Bath Plant3000214 · Active6/8 quarters reported | Steuben, NYSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 16,621 | 1 | 0 | 32.5 |
| BROCKPORT PLANT3000022 · Active6/8 quarters reported | Monroe, NYSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 25,889 | 1 | 1 | 34.3 |
| Howard Plant3002754 · Active6/8 quarters reported | Steuben, NYSurface · MSHA: Construction Sand and Gravel | 0 | 20,792 | 1 | 0 | 19.8 |
| Leroy Plant3000032 · Active6/8 quarters reported | Genesee, NYSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 42,810 | 0 | 0 | 33.3 |
| MANCHESTER PLANT3001254 · Active6/8 quarters reported | Ontario, NYSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 40,587 | 9 | 0 | 44.5 |
| PALMYRA PLANT3003840 · Active6/8 quarters reported | Wayne, NYSurface · MSHA: Sand, Common | 0 | 29,025 | 1 | 1 | 26.0 |
| PENFIELD PLANT3000033 · Active6/8 quarters reported | Monroe, NYSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 45,309 | 7 | 2 | 62.8 |
| Walworth Plant3000035 · Active6/8 quarters reported | Wayne, NYSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 65,480 | 7 | 0 | 50.0 |
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
Portfolio map
8 of 8 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Bath Plant42.31528, -77.34528Open map ↗
- BROCKPORT PLANT43.17806, -77.90611Open map ↗
- Howard Plant42.35944, -77.50472Open map ↗
- Leroy Plant42.99333, -77.92972Open map ↗
- MANCHESTER PLANT42.95028, -77.18111Open map ↗
- PALMYRA PLANT43.05861, -77.14250Open map ↗
- PENFIELD PLANT43.14667, -77.48139Open map ↗
- Walworth Plant43.16389, -77.32278Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 8 mines listed under this operator were checked; 8 have reports in the available quarters. Totals use current ownership.
Hours worked
286,513reported employee hours
Tons per hour
0.00production ÷ 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.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 40,219 | 0.00 | 92 | 8/8 mines reporting |
| 2025 Q2 | 0 | 55,607 | 0.00 | 96 | 8/8 mines reporting |
| 2025 Q3 | 0 | 61,402 | 0.00 | 99 | 8/8 mines reporting |
| 2025 Q4 | 0 | 44,267 | 0.00 | 96 | 8/8 mines reporting |
| 2026 Q1 | 0 | 36,150 | 0.00 | 84 | 8/8 mines reporting |
| 2026 Q2 | 0 | 48,868 | 0.00 | 89 | 8/8 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
274 significant & substantial (S&S)
Accident records
40 records classified as fatality
Proposed penalties · USD
5,255.0022 of 27 violations with amounts
On-site inspection hours
303.0036 inspections · 36 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.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 6 | 1 | 906.00 | 0 | 0 | 3 | 20.8 |
| 2025-Q2 | 3 | 0 | 511.00 | 0 | 0 | 7 | 74.8 |
| 2025-Q3 | 8 | 2 | 3,083.00 | 1 | 0 | 4 | 31.5 |
| 2025-Q4 | 0 | 0 | — | 0 | 0 | 2 | 13.5 |
| 2026-Q1 | 1 | 0 | 151.00 | 1 | 0 | 6 | 38.0 |
| 2026-Q2 | 4 | 0 | 604.00 | 1 | 0 | 8 | 58.5 |
| 2026-Q3 | 5 | 1 | — | 1 | 0 | 6 | 66.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Leroy Plant · 3000032
Spot Inspection · 2.5 on-site hours
- PENFIELD PLANT · 3000033
Compliance Follow-up Inspection · 1.5 on-site hours
- PENFIELD PLANT · 3000033
56.5001(a)/.5005 · S&S
- MANCHESTER PLANT · 3001254
Spot Inspection · 9.0 on-site hours
- BROCKPORT PLANT · 3000022
Regular Safety and Health Inspection · 9.0 on-site hours
- BROCKPORT PLANT · 3000022
50.30(a)
- PENFIELD PLANT · 3000033
50.30(a)
- PENFIELD PLANT · 3000033
Regular Safety and Health Inspection · 21.3 on-site hours
- PENFIELD PLANT · 3000033
56.9315
- Walworth Plant · 3000035
50.30(a)
- Walworth Plant · 3000035
Regular Safety and Health Inspection · 22.8 on-site hours
- PALMYRA PLANT · 3003840
OTHER · PERM TOT OR PERM PRTL DISABLTY
Accident narrative
Employee was finishing washing out tail pulley with a hose and went to get back into skid steer. When employee swung leg into the equipment, felt a pop in RH side groin area accompanied with severe pain and numbness of the thigh. Employee reached out on radio and returned to shop. Employee was seen by Fit for Work who recommended medical follow-up - suspected hernia.
- Howard Plant · 3002754
Regular Safety and Health Inspection · 3.0 on-site hours
- PALMYRA PLANT · 3003840
Regular Safety and Health Inspection · 19.5 on-site hours
- PALMYRA PLANT · 3003840
56.12004 · $151.00 proposed
- BROCKPORT PLANT · 3000022
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
While drilling a hole in the roof of the water truck to mount an AC unit. EE was drilling a hole with a hand held drill and had EE's left index finger right where the drill bit broke through the roof and drilled into their finger. EE received 4 stitches and antibiotics.
- MANCHESTER PLANT · 3001254
Compliance Follow-up Inspection · 0.8 on-site hours
- Bath Plant · 3000214
Compliance Follow-up Inspection · 1.0 on-site hours
- MANCHESTER PLANT · 3001254
56.14100(b) · $151.00 proposed
- Leroy Plant · 3000032
Regular Safety and Health Inspection · 14.5 on-site hours
- MANCHESTER PLANT · 3001254
Regular Safety and Health Inspection · 9.5 on-site hours
- MANCHESTER PLANT · 3001254
56.14101(a)(2) · $151.00 proposed
- PENFIELD PLANT · 3000033
Compliance Follow-up Inspection · 3.5 on-site hours
- Bath Plant · 3000214
56.14100(b) · $151.00 proposed
- Bath Plant · 3000214
Regular Safety and Health Inspection · 6.8 on-site hours
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.