ACTIVE / OPERATOR PORTFOLIO

Bayer Construction Company, Inc.

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

MSHA OPERATOR IDL00361

MINE PORTFOLIO

5 of 5 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
Kansas Falls Quarry1401666 · Active6/8 quarters reportedGeary, KSSurface · MSHA: Crushed, Broken Limestone NEC040,59925051.0
PLANT #21401456 · Active6/8 quarters reportedRiley, KSSurface · MSHA: Crushed, Broken Limestone NEC042,39223448.3
Plant #31401587 · Active6/8 quarters reportedClay, KSSurface · MSHA: Crushed, Broken Limestone NEC041,7878128.5
Portable Plant #51401747 · Active6/8 quarters reportedRiley, KSSurface · MSHA: Crushed, Broken Limestone NEC032,28915240.0
Portable Plant #61401845 · Active6/8 quarters reportedPottawatomie, KSSurface · MSHA: Construction Sand and Gravel023,999207.0

LOCATION

Portfolio map

5 of 5 mines 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

73

7 significant & substantial (S&S)

  1. 2025 Q14
  2. 2025 Q23
  3. 2025 Q34
  4. 2025 Q417
  5. 2026 Q123
  6. 2026 Q212
  7. 2026 Q310
  8. 2026 Q4 *0

Accident records

7

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q20
  3. 2025 Q32
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q23
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

29,000.00

73 of 73 violations with amounts

  1. 2025 Q1604
  2. 2025 Q21,057
  3. 2025 Q31,674
  4. 2025 Q410,250
  5. 2026 Q13,899
  6. 2026 Q24,661
  7. 2026 Q36,855
  8. 2026 Q4 *—

On-site inspection hours

174.75

20 inspections · 20 with hours

  1. 2025 Q116.00
  2. 2025 Q223.00
  3. 2025 Q315.50
  4. 2025 Q420.00
  5. 2026 Q132.75
  6. 2026 Q245.50
  7. 2026 Q322.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q140604.0010216.0
2025-Q2311,057.0000223.0
2025-Q3401,674.0020315.5
2025-Q417110,250.0000120.0
2026-Q12323,899.0000432.8
2026-Q21224,661.0030545.5
2026-Q31016,855.0010322.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF03C4EE
    Portable Plant #5 · 1401747

    Spot Inspection · 8.0 on-site hours

  2. accident220262470012
    Portable Plant #5 · 1401747

    SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Was stepping down off the dozer, lost EE's footing, and fell approximately 2.5 to 3 feet to the ground on EE's back.

  3. inspectionF012086
    Portable Plant #5 · 1401747

    Compliance Follow-up Inspection · 0.0 on-site hours

  4. violation9989725
    Portable Plant #5 · 1401747

    50.20-1 · $151.00 proposed

  5. violation5042580
    Kansas Falls Quarry · 1401666

    56.14100(b) · $504.00 proposed

  6. violation5042579
    Kansas Falls Quarry · 1401666

    56.15001 · $226.00 proposed

  7. inspectionF03C4DC
    Kansas Falls Quarry · 1401666

    Regular Safety and Health Inspection · 14.0 on-site hours

  8. violation5042578
    Kansas Falls Quarry · 1401666

    56.14100(a) · S&S · $3,184.00 proposed

  9. violation5042577
    Kansas Falls Quarry · 1401666

    56.14101(a)(2) · $288.00 proposed

  10. violation5042576
    Kansas Falls Quarry · 1401666

    56.14132(a) · $288.00 proposed

  11. violation5042575
    Kansas Falls Quarry · 1401666

    56.14100(b) · $642.00 proposed

  12. violation5042574
    Kansas Falls Quarry · 1401666

    56.14100(b) · $642.00 proposed

  13. violation5042573
    Kansas Falls Quarry · 1401666

    56.14107(a) · $288.00 proposed

  14. violation5042572
    Kansas Falls Quarry · 1401666

    56.12004 · $642.00 proposed

  15. inspectionF03C4C9
    Portable Plant #5 · 1401747

    Compliance Follow-up Inspection · 0.3 on-site hours

  16. inspectionF00F827
    Portable Plant #6 · 1401845

    Regular Safety and Health Inspection · 7.0 on-site hours

  17. violation5042543
    Portable Plant #5 · 1401747

    56.14100(b) · $151.00 proposed

  18. violation5042542
    Portable Plant #5 · 1401747

    56.14100(b) · $151.00 proposed

  19. violation5042541
    Portable Plant #5 · 1401747

    56.14130(g) · S&S · $504.00 proposed

  20. violation5042540
    Portable Plant #5 · 1401747

    56.12004 · $151.00 proposed

  21. violation5046894
    Portable Plant #6 · 1401845

    56.12002 · $151.00 proposed

  22. violation5046893
    Portable Plant #6 · 1401845

    56.4201(a)(2) · $151.00 proposed

  23. inspectionF03C4C5
    Plant #3 · 1401587

    Regular Safety and Health Inspection · 9.3 on-site hours

  24. inspectionF03C4C6
    Portable Plant #5 · 1401747

    Regular Safety and Health Inspection · 9.8 on-site hours

  25. violation5042539
    Plant #3 · 1401587

    56.15007 · $151.00 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 controller.

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