MSHA DATABASEMSHA records · 16 contributing sources · snapshot Oct 13, 2026

MINE DETAILS

Chesney Underground

ActiveUndergroundCrushed, Broken Limestone NEC
MSHA MINE ID4002113
LOCATIONUnion, TN
PUBLIC RECORD4,517 linked rows

LOCATION

Mine location

1 of 1 mine 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

39

5 significant & substantial (S&S)

  1. 2025 Q15
  2. 2025 Q28
  3. 2025 Q39
  4. 2025 Q43
  5. 2026 Q15
  6. 2026 Q24
  7. 2026 Q35
  8. 2026 Q4 *0

Accident records

5

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q13
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

8,422.00

34 of 39 violations with amounts

  1. 2025 Q1755
  2. 2025 Q22,377
  3. 2025 Q32,920
  4. 2025 Q4453
  5. 2026 Q1940
  6. 2026 Q2977
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

430.75

13 inspections · 13 with hours

  1. 2025 Q166.50
  2. 2025 Q266.50
  3. 2025 Q374.75
  4. 2025 Q455.25
  5. 2026 Q157.25
  6. 2026 Q259.50
  7. 2026 Q351.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q150755.0000166.5
2025-Q2812,377.0010366.5
2025-Q3932,920.0000474.8
2025-Q430453.0000155.3
2026-Q150940.0030157.3
2026-Q240977.0000259.5
2026-Q351—10151.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5088025

    57.20003(a)

  2. violation5088024

    57.12008

  3. inspectionF03FCBF

    Regular Safety and Health Inspection · 51.0 on-site hours

  4. violation5088023

    57.14115

  5. violation5087051

    57.6501(a)(3)

  6. violation5087050

    57.14100(a) · S&S

  7. accident220262080027

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee noticed lime burns to both wrists as they deconned their PPE for their lunch break. Employee reported injury to safety rep., treated by clinic per company policy, placed on light duty, and prescribed antibiotics on 7-16-2026 as a preventative measure for the burns in-case it was to become infected.

  8. inspectionF023458

    Verbal Hazard Complaint Inspections · 4.8 on-site hours

  9. violation5087542

    57.20003(a) · $245.00 proposed

  10. violation5087037

    57.4200(b)(2) · $151.00 proposed

  11. inspectionF028CFC

    Regular Safety and Health Inspection · 54.8 on-site hours

  12. violation5087541

    57.20003(a) · $245.00 proposed

  13. violation5087036

    57.6306(a) · $336.00 proposed

  14. accident220260910009

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    While scaling in 33 West, a rock fell from the back and struck the scaler boom jolting the cab causing the operator to hit the windshield with EE's forehead and right shoulder. The operator was wearing a seat belt. EE as a mild concussion and a strained A/C shoulder joint. Scaler equipped with a lap belt style seat belt.

  15. accident220261050017

    NONPOWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    EE was cleaning on top of the kiln silos. As they went to straighten up to lift the wheelbarrow they heard and felt a pop in their back and was in a lot of pain. Dr. released them with no restrictions, went to Ortho on 4/13/26 due to continued pain. Dr. gave restriction and EE is now off work.

  16. violation5087448

    57.12032 · $151.00 proposed

  17. violation5087447

    57.11001 · $151.00 proposed

  18. accident220260560022

    MACHINERY · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee was following wires in the engine compartment for a light that was not working on a piece of equipment when their fingers contacted the fan blade of the engine cutting 2 fingers. They received 7 stiches in one finger and was put on restricted duty for 10 days.

  19. violation5089514

    57.14100(b) · $151.00 proposed

  20. violation5087445

    57.14201(b) · $336.00 proposed

  21. violation5087444

    57.4603(b) · $151.00 proposed

  22. inspectionF02C23A

    Regular Safety and Health Inspection · 57.3 on-site hours

  23. violation9776980

    57.14112(b) · $151.00 proposed

  24. violation5087011

    57.14112(b) · $151.00 proposed

  25. violation5087407

    57.14201(b) · $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.

OWNERSHIP

Operator and controller history

Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.

CURRENT HIERARCHYCarmeuse Holding SA → Carmeuse Lime & Stone → Chesney Underground
HISTORY RECORDS1126 relationships
INTERVAL CHECK2 REVIEWcontroller/operator overlap
—

Carmeuse Holding SAcontrolsCarmeuse Lime and StoneoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Oglebay Norton CompanycontrolsCarmeuse Lime & StoneoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Carmeuse Holding SAcontrolsCarmeuse Lime & StoneoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Lafarge SAcontrolsCarmeuse Lime and StoneoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Carmeuse Holding SAcontrolsCarmeuse Lime and StoneoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Carmeuse Holding SAcontrolsCarmeuse Lime and StoneoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Oglebay Norton CompanycontrolsCarmeuse Lime and StoneoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Global Stone CorpcontrolsGlobal Stone Tenn Luttrell CompanyoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Penn Virginia CorpcontrolsTenn Luttrell CompanyoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Morrison Knudsen Corp (Old)controlsBlue Ridge Mining Company IncoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
—

Preston Carroll Enterprises InccontrolsLuttrell Mining Company IncoperatesChesney Underground

msha-controller-operator-history · controller/operator co-tenure derived on mine 4002113
Other historical summaries · source-specific periods

RECORD SUMMARY

Production, safety and enforcement

These summaries use the periods stated on each card, independently of the reporting period above.

01 / SAFETYwatch

Accidents and injuries

57 historical accident/injury rows; 0 coded fatalities and 1,842 lost days across the published record.

ACCIDENT + INJURY RECORD13 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

428 violation rows across the full record; 124 carry an S&S flag and $147,184 appears in current assessed amounts.

ENFORCEMENT ACTIVITY97 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

267 personal; 25 area. 3 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.

OCCUPATIONAL EXPOSURE292 samples
personal-health-samplesarea-samples
04 / PRODUCTIONcontext

Quarterly production and employment

41K employee hours and 74 summed average employees across reported subunits in the latest published quarter.

2026-Q20 tons
mine-production-quarterlymine-production-yearly
05 / LEGALwatch

Contests, conferences and decisions

63 contested-violation rows, 61 civil-penalty docket/decision rows, and 30 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE154 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions
06 / CONTRACTORScontext

Contractors

Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.

ENTITY-LEVEL CONTEXT11 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

199 inspection events and 8K published inspection hours across the historical record.

OVERSIGHT COVERAGE40 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records00 coal · 0 personal · 0 area
Sample status0 not voided0 voided · 0 status not reported
Personal samples with C/E > 1—0 published ratios · not a citation count
2026 · No reported dates in this selection
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished action
No silica records match these filters. Missing samples do not establish safe conditions.
Sources and interpretation
  • Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
  • Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
  • Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
  • Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
  • Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.

Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗

EIA + TITLE 30

EIA production and cited regulations

EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.

RECENT PUBLIC RECORDS

Recent violations and samples

Latest records retained for inspection; aggregates above use the full source history.

VIOLATIONS12 latest shown
508802557.20003(a)Citation
508802457.12008Citation
508802357.14115Citation
508705157.6501(a)(3)Citation
508705057.14100(a)S&S
508754257.20003(a)Citation
508703757.4200(b)(2)Citation
508754157.20003(a)Citation
OTHER HEALTH SAMPLES8 latest shown

Coal dust, noise and other contaminants. Silica records above ↑

TC from EC @ 160Roof Bolter, Rock
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC @ 160Roof Bolter, Rock
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONRoof Bolter, Rock
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
EC @ 160Roof Bolter, Rock
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC from EC @ 160Front-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC @ 160Front-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
EC @ 160Front-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

16 datasets contain linked records. Missing datasets are listed below.

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors57Feb 15, 2001—Jul 13, 2026mine-keyed
Addresses of Recordidentity · logistics1Jan 17, 1990—Jan 17, 1990mine-keyed
Assessed Violationscompliance · legal417Mar 7, 2000—May 19, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal61Jan 11, 2005—Nov 16, 2016mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal30Sep 18, 2000—Oct 23, 2024mine-keyed
Contested Violationscompliance · legal63Aug 26, 2003—Sep 8, 2014mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety2,146Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety424Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance11Jan 1, 1950—Jan 11, 2011mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance326Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance61Not published—Not publishedmine-keyed
Inspectionssafety · compliance199Feb 2, 2000—Aug 31, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety25Feb 20, 2018—Feb 20, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety267Aug 30, 2000—Feb 20, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal428Mar 7, 2000—Sep 2, 2026mine-keyed
107(a) Orders Issuedsafety · compliance—No published rowsabsent / not applicable

NOTES

Limitations

  • Contractor production is entity-level and is never represented as mine-attributable.
  • Missing rows can mean no event, publication delay, identity mismatch, or inapplicability.