Coal production
0reported short tons
ALL STATUSES / OPERATOR PORTFOLIO
Stoneco Inc.
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL00224
MINE PORTFOLIO
19 of 19 mines and facilities
2025-01-01 – 2026-10-13. All statuses 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 |
|---|---|---|---|---|---|---|
| Allied Corporation Inc3302913 · Active6/8 quarters reported | Stark, OHSurface · MSHA: Construction Sand and Gravel | 0 | 22,542 | 7 | 0 | 23.5 |
| Auglaize Plant3300103 · Intermittent6/8 quarters reported | Paulding, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 33,535 | 3 | 0 | 34.3 |
| Canton Aggregates C13301419 · Intermittent6/8 quarters reported | Stark, OHFacility · MSHA: Construction Sand and Gravel | 0 | 26,177 | 2 | 0 | 15.3 |
| Canton Aggregates C23304739 · Intermittent6/8 quarters reported | Stark, OHSurface · MSHA: Construction Sand and Gravel | 0 | 16,914 | 4 | 0 | 23.8 |
| Celina Quarry3300087 · Intermittent6/8 quarters reported | Mercer, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 25,927 | 2 | 0 | 43.0 |
| Jefferson Materials Co3301526 · Intermittent6/8 quarters reported | Portage, OHSurface · MSHA: Construction Sand and Gravel | 0 | 39,072 | 0 | 1 | 3.8 |
| Maumee Quarry3300102 · Active6/8 quarters reported | Lucas, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 46,554 | 15 | 2 | 71.5 |
| Portage Quarry3300105 · Intermittent2/8 quarters reported | Wood, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 1,193 | 0 | 0 | 4.8 |
| Scott Quarry3300169 · Active6/8 quarters reported | Van Wert, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 16,812 | 2 | 0 | 26.5 |
| Stoneco, Inc.3300181 · Active6/8 quarters reported | Wyandot, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 94,187 | 10 | 0 | 114.3 |
| White Rock Quarry3300091 · Intermittent6/8 quarters reported | Ottawa, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 72,053 | 8 | 1 | 34.5 |
| Bryant Quarry1200058 · Abandoned | Adams, INSurface · MSHA: Crushed, Broken Limestone NEC | — | — | 0 | 0 | — |
| Lime City Quarry3300104 · Abandoned | Wood, OHSurface · MSHA: Crushed, Broken Limestone NEC | — | — | 0 | 0 | — |
| Mill Creek Quarry1202100 · Abandoned | Miami, INSurface · MSHA: Crushed, Broken Limestone NEC | — | — | 0 | 0 | — |
| Montpelier Sand & Gravel3301706 · Abandoned | Williams, OHSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| North Montpelier Plant3301675 · Abandoned | Williams, OHSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Portable Plant3304741 · Temporarily Idled6/8 quarters reported | Hardin, OHSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 15,832 | 1 | 0 | 27.8 |
| Rocky Ridge Quarry3302696 · Abandoned | Ottawa, OHSurface · MSHA: Crushed, Broken Limestone NEC | — | — | 0 | 0 | — |
| Stoneco Inc (Portable)3304499 · Abandoned | Wood, OHSurface · MSHA: Crushed, Broken Limestone NEC | — | — | 0 | 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
16 of 19 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Allied Corporation Inc40.75222, -81.52167Open map ↗
- Auglaize Plant41.17611, -84.43444Open map ↗
- Canton Aggregates C140.84167, -81.31750Open map ↗
- Canton Aggregates C240.85611, -81.32611Open map ↗
- Celina Quarry40.53611, -84.65722Open map ↗
- Jefferson Materials Co41.13167, -81.18722Open map ↗
- Maumee Quarry41.57222, -83.67278Open map ↗
- Portage Quarry41.31833, -83.65028Open map ↗
- Scott Quarry40.95278, -84.65722Open map ↗
- Stoneco, Inc.40.96417, -83.36972Open map ↗
- White Rock Quarry41.56361, -83.36694Open map ↗
- Lime City Quarry41.53805, -83.56417Open map ↗
- Mill Creek Quarry40.64156, -86.10416Open map ↗
- Montpelier Sand & Gravel41.55728, -84.64090Open map ↗
- Portable Plant41.31194, -83.65028Open map ↗
- Rocky Ridge Quarry41.56014, -83.22216Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 19 mines listed under this operator were checked; 12 have reports in the available quarters. Totals use current ownership.
Hours worked
410,798reported 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 | 35,419 | 0.00 | 111 | 11/12 mines reporting |
| 2025 Q2 | 0 | 92,920 | 0.00 | 164 | 11/12 mines reporting |
| 2025 Q3 | 0 | 87,543 | 0.00 | 165 | 11/12 mines reporting |
| 2025 Q4 | 0 | 64,821 | 0.00 | 139 | 11/12 mines reporting |
| 2026 Q1 | 0 | 43,949 | 0.00 | 91 | 12/12 mines reporting |
| 2026 Q2 | 0 | 86,146 | 0.00 | 148 | 12/12 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
544 significant & substantial (S&S)
Accident records
40 records classified as fatality
Proposed penalties · USD
9,294.0053 of 54 violations with amounts
On-site inspection hours
422.7535 inspections · 35 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 | 8 | 0 | 1,208.00 | 0 | 0 | 6 | 69.0 |
| 2025-Q2 | 17 | 1 | 2,781.00 | 1 | 0 | 8 | 165.5 |
| 2025-Q3 | 0 | 0 | — | 2 | 0 | 0 | — |
| 2025-Q4 | 6 | 1 | 1,022.00 | 1 | 0 | 6 | 59.5 |
| 2026-Q1 | 8 | 1 | 1,283.00 | 0 | 0 | 7 | 62.8 |
| 2026-Q2 | 6 | 1 | 1,792.00 | 0 | 0 | 2 | 17.0 |
| 2026-Q3 | 9 | 0 | 1,208.00 | 0 | 0 | 6 | 49.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Maumee Quarry · 3300102
Spot Inspection · 0.0 on-site hours
- Maumee Quarry · 3300102
50.20(a)
- Stoneco, Inc. · 3300181
56.14112(b) · $151.00 proposed
- Stoneco, Inc. · 3300181
Regular Safety and Health Inspection · 27.0 on-site hours
- Stoneco, Inc. · 3300181
56.12018 · $151.00 proposed
- Stoneco, Inc. · 3300181
56.14110 · $151.00 proposed
- Scott Quarry · 3300169
Regular Safety and Health Inspection · 7.0 on-site hours
- Scott Quarry · 3300169
56.20003(a) · $151.00 proposed
- White Rock Quarry · 3300091
Regular Safety and Health Inspection · 13.5 on-site hours
- White Rock Quarry · 3300091
56.20003(a) · $151.00 proposed
- White Rock Quarry · 3300091
56.11001 · $151.00 proposed
- White Rock Quarry · 3300091
56.11001 · $151.00 proposed
- White Rock Quarry · 3300091
56.14112(a)(1) · $151.00 proposed
- Portage Quarry · 3300105
Verbal Hazard Complaint Inspections · 1.0 on-site hours
- Maumee Quarry · 3300102
Compliance Follow-up Inspection · 0.5 on-site hours
- Maumee Quarry · 3300102
Regular Safety and Health Inspection · 11.3 on-site hours
- Allied Corporation Inc · 3302913
Regular Safety and Health Inspection · 5.8 on-site hours
- Maumee Quarry · 3300102
56.11002 · S&S · $1,037.00 proposed
- Maumee Quarry · 3300102
56.11012 · $151.00 proposed
- Maumee Quarry · 3300102
56.20003(a) · $151.00 proposed
- Maumee Quarry · 3300102
56.14107(a) · $151.00 proposed
- Maumee Quarry · 3300102
56.14207 · $151.00 proposed
- Allied Corporation Inc · 3302913
56.12008 · $151.00 proposed
- Celina Quarry · 3300087
Regular Safety and Health Inspection · 16.0 on-site hours
- Portage Quarry · 3300105
Regular Safety and Health Inspection · 3.8 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.