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U.S. MINING ENTITIES / OPERATOR / L00224

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 – 2026-10-18. 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.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Allied Corporation Inc3302913 · Active6/8 quarters reportedStark, OHSurface · MSHA: Construction Sand and Gravel022,5427023.5
Auglaize Plant3300103 · Intermittent6/8 quarters reportedPaulding, OHSurface · MSHA: Crushed, Broken Limestone NEC033,5353034.3
Canton Aggregates C13301419 · Intermittent6/8 quarters reportedStark, OHFacility · MSHA: Construction Sand and Gravel026,1772015.3
Canton Aggregates C23304739 · Intermittent6/8 quarters reportedStark, OHSurface · MSHA: Construction Sand and Gravel016,9144023.8
Celina Quarry3300087 · Intermittent6/8 quarters reportedMercer, OHSurface · MSHA: Crushed, Broken Limestone NEC025,9272043.0
Jefferson Materials Co3301526 · Intermittent6/8 quarters reportedPortage, OHSurface · MSHA: Construction Sand and Gravel039,072013.8
Maumee Quarry3300102 · Active6/8 quarters reportedLucas, OHSurface · MSHA: Crushed, Broken Limestone NEC046,55415271.5
Portage Quarry3300105 · Intermittent2/8 quarters reportedWood, OHSurface · MSHA: Crushed, Broken Limestone NEC01,193004.8
Scott Quarry3300169 · Active6/8 quarters reportedVan Wert, OHSurface · MSHA: Crushed, Broken Limestone NEC016,8122026.5
Stoneco, Inc.3300181 · Active6/8 quarters reportedWyandot, OHSurface · MSHA: Crushed, Broken Limestone NEC094,187100114.3
White Rock Quarry3300091 · Intermittent6/8 quarters reportedOttawa, OHSurface · MSHA: Crushed, Broken Limestone NEC072,0538134.5
Bryant Quarry1200058 · AbandonedAdams, INSurface · MSHA: Crushed, Broken Limestone NEC——00—
Lime City Quarry3300104 · AbandonedWood, OHSurface · MSHA: Crushed, Broken Limestone NEC——00—
Mill Creek Quarry1202100 · AbandonedMiami, INSurface · MSHA: Crushed, Broken Limestone NEC——00—
Montpelier Sand & Gravel3301706 · AbandonedWilliams, OHSurface · MSHA: Construction Sand and Gravel——00—
North Montpelier Plant3301675 · AbandonedWilliams, OHSurface · MSHA: Construction Sand and Gravel——00—
Portable Plant3304741 · Temporarily Idled6/8 quarters reportedHardin, OHSurface · MSHA: Crushed, Broken Limestone NEC015,8321027.8
Rocky Ridge Quarry3302696 · AbandonedOttawa, OHSurface · MSHA: Crushed, Broken Limestone NEC——00—
Stoneco Inc (Portable)3304499 · AbandonedWood, OHSurface · MSHA: Crushed, Broken Limestone NEC——00—

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

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

2025 Q1 – 2026 Q4

JSONCSV

Database snapshot · 2026-10-18. All 19 mines listed under this operator were checked; 12 have reports in the available quarters. Totals use current ownership.

Coal production

0

reported short tons

  1. 2025 Q1 *0
  2. 2025 Q2 *0
  3. 2025 Q3 *0
  4. 2025 Q4 *0
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

Hours worked

410,798

reported employee hours

  1. 2025 Q1 *35,419
  2. 2025 Q2 *92,920
  3. 2025 Q3 *87,543
  4. 2025 Q4 *64,821
  5. 2026 Q143,949
  6. 2026 Q286,146
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

Tons per hour

0.00

production ÷ hours worked

  1. 2025 Q1 *0.00
  2. 2025 Q2 *0.00
  3. 2025 Q3 *0.00
  4. 2025 Q4 *0.00
  5. 2026 Q10.00
  6. 2026 Q20.00
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

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
Quarterly production, employment and reporting coverage for Stoneco Inc
QuarterCoal (short tons)Hours workedTons / hourAvg. employeesCoverage
2025 Q1035,4190.0011111/12 mines reporting
2025 Q2092,9200.0016411/12 mines reporting
2025 Q3087,5430.0016511/12 mines reporting
2025 Q4064,8210.0013911/12 mines reporting
2026 Q1043,9490.009112/12 mines reporting
2026 Q2086,1460.0014812/12 mines reporting
2026 Q3————No report
2026 Q4————No report

Safety and enforcement

2025-01-01 – 2026-10-18

Violations

54

4 significant & substantial (S&S)

  1. 2025 Q18
  2. 2025 Q217
  3. 2025 Q30
  4. 2025 Q46
  5. 2026 Q18
  6. 2026 Q26
  7. 2026 Q39
  8. 2026 Q4 *0

Accident records

4

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q32
  4. 2025 Q41
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

9,294.00

53 of 54 violations with amounts

  1. 2025 Q11,208
  2. 2025 Q22,781
  3. 2025 Q3—
  4. 2025 Q41,022
  5. 2026 Q11,283
  6. 2026 Q21,792
  7. 2026 Q31,208
  8. 2026 Q4 *—

On-site inspection hours

422.75

35 inspections · 35 with hours

  1. 2025 Q169.00
  2. 2025 Q2165.50
  3. 2025 Q3—
  4. 2025 Q459.50
  5. 2026 Q162.75
  6. 2026 Q217.00
  7. 2026 Q349.00
  8. 2026 Q4 *—

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
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1801,208.0000669.0
2025-Q21712,781.00108165.5
2025-Q300—200—
2025-Q4611,022.0010659.5
2026-Q1811,283.0000762.8
2026-Q2611,792.0000217.0
2026-Q3901,208.0000649.0
2026-Q4 *00—000—

Most cited CFR sections

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

SectionViolationsS&S
30 CFR 56.12004Electrical conductors.51
30 CFR 56.20003Housekeeping.51
30 CFR 56.12018Identification of power switches.40
30 CFR 56.14112Construction and maintenance of guards.40
30 CFR 56.11001Safe access.20
30 CFR 56.11012Protection for openings around travelways.20
30 CFR 56.12032Inspection and cover plates.20
30 CFR 56.14107Moving machine parts.20
30 CFR 56.14109Unguarded conveyors with adjacent travelways.20
30 CFR 56.4201Inspection.20

Safety activity

  1. violation9808278
    Allied Corporation Inc · 3302913

    56.23004(a) · $151.00 proposed

  2. violation9808277
    Allied Corporation Inc · 3302913

    46.9(a) · $151.00 proposed

  3. violation9808276
    Allied Corporation Inc · 3302913

    46.3(a) · $151.00 proposed

  4. violation9808275
    Allied Corporation Inc · 3302913

    56.14101(a)(2) · $151.00 proposed

  5. inspectionF011635
    Maumee Quarry · 3300102

    Regular Safety and Health Inspection · 18.5 on-site hours

  6. violation6497540
    Maumee Quarry · 3300102

    56.4200(b)(2) · $151.00 proposed

  7. violation9808263
    Canton Aggregates C1 · 3301419

    56.14132(a) · $151.00 proposed

  8. inspectionF0112CD
    Canton Aggregates C1 · 3301419

    Regular Safety and Health Inspection · 10.3 on-site hours

  9. violation9808262
    Canton Aggregates C1 · 3301419

    56.12018 · $151.00 proposed

  10. violation9808261
    Canton Aggregates C2 · 3304739

    56.4101 · $151.00 proposed

  11. inspectionF0112CC
    Canton Aggregates C2 · 3304739

    Regular Safety and Health Inspection · 14.8 on-site hours

  12. inspectionF0032F7
    Portable Plant · 3304741

    Regular Safety and Health Inspection · 4.0 on-site hours

  13. violation9808260
    Canton Aggregates C2 · 3304739

    56.14107(a) · $151.00 proposed

  14. violation9808259
    Canton Aggregates C2 · 3304739

    56.14112(a)(1) · $151.00 proposed

  15. violation9693397
    Maumee Quarry · 3300102

    56.14109(a) · $151.00 proposed

  16. violation9693396
    Maumee Quarry · 3300102

    56.14109(a) · $151.00 proposed

  17. inspectionF0146A2
    Maumee Quarry · 3300102

    Regular Safety and Health Inspection · 15.5 on-site hours

  18. inspectionF014699
    Scott Quarry · 3300169

    Regular Safety and Health Inspection · 6.0 on-site hours

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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.

CONTROLLER / M06183CRH PLC19 selected mines →