MSHA DATABASEMSHA records · 17 contributing sources · snapshot Oct 18, 2026

MINE DETAILS

CARDINAL

ActiveUndergroundCoal (Bituminous)
MSHA MINE ID1517216
LOCATIONHopkins, KY
PUBLIC RECORD81,699 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 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

1,093

270 significant & substantial (S&S)

  1. 2025 Q1109
  2. 2025 Q2202
  3. 2025 Q3166
  4. 2025 Q4147
  5. 2026 Q1155
  6. 2026 Q2159
  7. 2026 Q3128
  8. 2026 Q4 *27

Accident records

76

0 records classified as fatality

  1. 2025 Q114
  2. 2025 Q27
  3. 2025 Q39
  4. 2025 Q49
  5. 2026 Q112
  6. 2026 Q213
  7. 2026 Q312
  8. 2026 Q4 *0

Proposed penalties · USD

587,836.00

1,013 of 1,093 violations with amounts

  1. 2025 Q163,502
  2. 2025 Q299,552
  3. 2025 Q387,077
  4. 2025 Q4119,661
  5. 2026 Q197,993
  6. 2026 Q271,468
  7. 2026 Q348,583
  8. 2026 Q4 *—

On-site inspection hours

10,522.25

168 inspections · 168 with hours

  1. 2025 Q11,251.00
  2. 2025 Q21,499.00
  3. 2025 Q31,604.00
  4. 2025 Q41,569.25
  5. 2026 Q11,626.00
  6. 2026 Q21,513.25
  7. 2026 Q31,310.50
  8. 2026 Q4 *149.25
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q11093363,502.00140261,251.0
2025-Q22024499,552.0070181,499.0
2025-Q31663387,077.0090211,604.0
2025-Q414744119,661.0090271,569.3
2026-Q11554097,993.00120221,626.0
2026-Q21593471,468.00130261,513.3
2026-Q31283548,583.00120241,310.5
2026-Q4 *277—004149.3

Most cited CFR sections

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

Safety activity

  1. accident220260890024

    MACHINERY · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was in the process of installing a roof bolt when EE used the rotation to align the chuck and the bolt head causing EE's gloved hand to be strained.

  2. accident220260780014

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was pulling a piece of rubber belt into the 1/54 airlock when their left knee gave out causing the employee to fall to the mine floor. Employee is being treated for a strain to their left knee.

  3. accident220260710022

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was bending a roof bolt when the bolted shifted causing the employee to twist their back resulting in lower back and leg pain. Employee is being treated for sciatica.

  4. accident220260650009

    MACHINERY · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was backing the bolter out of the #7 entry when the cable came off the side and ran under the cab. Employee reached from the deck behind the bolter to adjust the cable while backing up and contacted a de-energized car with the back of the bolter catching their left arm causing a laceration/ avulsion that was surgical repaired.

  5. accident220260550002

    HOISTING · ACCIDENT ONLY

    Accident narrative

    An empty trailer was loaded on the 630 hoist and during it's travel to the surface came in contact with the shaft wall causing damage to the metal skirting.

  6. accident220260400034

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee was pulling a pin from the rear of a diesel scoop, during the process the employees hand was caught between the pin and the rear of the scoop causing a laceration that required sutures.

  7. accident220260270021

    FALL OF ROOF OR BACK · ACCIDENT ONLY

    Accident narrative

    There was an unplanned roof fall at crosscut 15 between entry 6 & 7 in the panel district 11 4th North.

  8. accident220260350058

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee was loading new belt rollers on the back of ride, while doing so right ring finger was caught between the new roller and the ride frame causing a laceration that required sutures.

  9. accident220260300023

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was starting to drill the mine roof when a nodule broke in half and employee used right hand to push away the material and while doing so the broken nodule contacted the end of right middle finger causing a lacerations that required sutures.

  10. accident220260350008

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee had finished drilling EE's hole for the installation of a cable bolt, While retrieving EE's steels EE caught EE's left hand between the steel and the canopy resulting in a fracture to EE's knuckle.

  11. accident220260230010

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    The employee discovered a nodule lying in EE's travel way, while attempting to move the nodule a small piece of slate contacted the back of EE's hand resulting in a laceration that required sutures.

  12. accident220260200015

    FALL OF ROOF OR BACK · ACCIDENT ONLY

    Accident narrative

    There was an unplanned roof fall in the #9 2nd North Main XC-33 entry #3.

  13. accident220260060020

    MACHINERY · DAYS AWAY FROM WORK ONLY

    Accident narrative

    The employee smashed the tip of right small finger between the outside of the boom and the inside of the valve assemble located on the operators compartment while installing chain hangers.

  14. accident220253570013

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    The employee was standing beside of EE's tractor (7024) when the 7041 tractor that was parked across the road from EE rolled into EE's right leg causing a laceration to EE's right leg that required sutures.

  15. accident220253490007

    FALL OF ROOF OR BACK · ACCIDENT ONLY

    Accident narrative

    There was an unplanned roof fall at #9 1st East Main between 10+40 and 11+50 in the #4 entry.

  16. accident220253350012

    FALL OF ROOF OR BACK · ACCIDENT ONLY

    Accident narrative

    There was an unplanned fall in panel district 15 1st North xcut 30 #4 entry.

  17. accident220253280049

    FALL OF ROOF OR BACK · ACCIDENT ONLY

    Accident narrative

    There was an unplanned roof fall in the #9 1st East Main at crosscut 17 in the #5 entry.

  18. accident220253170685

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was loosening a J-bolt on a bottom belt hanger bracket with right hand and left hand contacting the top chair for leverage. While loosening the bolt left small finger accidentally contacted the top roller causing a friction burn from contacting the roller. They received three stitches to the finger.

  19. accident220253170617

    EXPLODING VESSELS UNDER PRESSURE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee had finished bolting the #6 entry on the #4 unit and was standing beside the roof bolter between the dust box and the boom when a hose fitting broke causing the employee to get oil in their eyes. Employee was treated for a scratch to their eye.

  20. accident220253170522

    HOISTING · ACCIDENT ONLY

    Accident narrative

    While testing the drum brake on the Hanson hoist it was discovered to allow the drum to move while under a load from the electric motor. The drum was found to have a residue that was removed and the system then passed the performed test.

  21. accident220253170316

    MACHINERY · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was drilling the roof when a piece of slate broke loose and came down the drill steel revealing a small nodule that also came loose from the roof and contacted the top of the employees left boot. No fractures found and the employee was treated for a bruise to EE's left foot.

  22. accident220252730028

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee was installing a steel cable to help pull the belt, when gloved right hand was cut by a burr on the cable causing a laceration that required sutures.

  23. accident220252680003

    FALL OF ROOF OR BACK · ACCIDENT ONLY

    Accident narrative

    There was an unplanned roof fall in the #9 North Main, between 28+65 and 29+55 in the #2 entry.

  24. accident220252330015

    HANDTOOLS (NONPOWERED) · PERM TOT OR PERM PRTL DISABLTY

    Accident narrative

    Employee was attempting to remove a steering jack pin with a sledge hammer. During the process right index finger was caught between the handle of the hammer and the frame of the scoop causing a laceration. They continued to perform their normal duties until 8/13/25 when they were treated for a fracture and given 5 sutures for the laceration.

  25. accident220252310002

    MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee was using a bolter wrench to tap the dust out of EE's drill steel. After striking the drill steel the employee struck self with the wrench in the mouth. It was determined on 8/11/25 that EE had a chipped tooth that would need repaired.

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.

Latest EIA month: 2026-07Source checked 2026-10-18 · publication lag differs from MSHA.

REPORTED RECEIPTS · SHORT TONS4,430,90851 rows · 5 receiving plants
HEAT CONTENT · BTU/LB12,379Weighted by reported tons
SULFUR / ASH · % BY WEIGHT3.05 / 8.94Separate averages over measured receipts
DELIVERED COST · USD/TON71.51100.0% of reported tons have usable costs
Quarterly receipts and quality
QuarterShort tonsHeat · Btu/lbSulfur %Ash %Delivered USD/ton
2025-Q3 *736,29812,3903.088.9872.29
2025-Q41,123,89712,3673.078.9071.44
2026-Q11,083,85912,3393.019.1271.20
2026-Q21,150,47012,4123.068.7971.72
2026-Q3 *336,38412,4063.058.9270.32
Month / sourceReceiving plant / supplierShort tonsDelivered USD/tonHeat · Btu/lbSulfur %Ash %PurchaseTransport
2026-07EIA row 11369 · preliminarySeminole (FL)136 · FL · ALLIANCE COAL12,60476.8212,3703.099.40ContractBITRail
2026-07EIA row 11560 · preliminaryMill Creek (KY)1364 · KY · ALLIANCE COAL154,74373.1212,3843.078.90ContractBITRail
2026-07EIA row 12553 · preliminaryCalvert City8837 · KY · ALLIANCE COAL126,55464.4512,4433.038.80ContractBITRail
2026-07EIA row 12554 · preliminaryCalvert City8837 · KY · ALLIANCE COAL42,48375.7212,3853.059.20ContractBITRail
2026-06EIA row 9465 · preliminarySeminole (FL)136 · FL · ALLIANCE COAL36,97177.4712,3403.089.10ContractBITRail
2026-06EIA row 9670 · preliminaryMill Creek (KY)1364 · KY · ALLIANCE COAL154,95272.4012,4143.128.90ContractBITRail
2026-06EIA row 10605 · preliminaryCalvert City8837 · KY · ALLIANCE COAL123,21366.2812,3933.078.90ContractBITRail
2026-06EIA row 10606 · preliminaryCalvert City8837 · KY · ALLIANCE COAL54,27977.2412,4343.098.60ContractBITRail
2026-05EIA row 7664 · preliminarySeminole (FL)136 · FL · ALLIANCE COAL63,99877.3512,3253.117.90ContractBITRail
2026-05EIA row 7860 · preliminaryMill Creek (KY)1364 · KY · ALLIANCE COAL169,05172.6012,4523.148.80ContractBITRail
2026-05EIA row 8727 · preliminaryCalvert City8837 · KY · ALLIANCE COAL133,64065.9812,4353.078.70ContractBITRail
2026-05EIA row 8728 · preliminaryCalvert City8837 · KY · ALLIANCE COAL66,61974.9812,4303.099.00ContractBITRail
2026-04EIA row 5854 · preliminarySeminole (FL)136 · FL · ALLIANCE COAL65,01477.3512,3603.009.40ContractBITRail
2026-04EIA row 6033 · preliminaryMill Creek (KY)1364 · KY · ALLIANCE COAL151,42572.3712,4092.908.70ContractBITRail
2026-04EIA row 6939 · preliminaryCalvert City8837 · KY · ALLIANCE COAL94,19165.9112,4222.978.70ContractBITRail
2026-04EIA row 6940 · preliminaryCalvert City8837 · KY · ALLIANCE COAL37,11776.3812,4283.018.80ContractBITRail
2026-03EIA row 4001 · preliminarySeminole (FL)136 · FL · ALLIANCE COAL26,59877.6712,3203.119.80ContractBITRail
2026-03EIA row 4225 · preliminaryMill Creek (KY)1364 · KY · ALLIANCE COAL183,23872.0212,3973.038.80ContractBITRail
2026-03EIA row 5116 · preliminaryCalvert City8837 · KY · ALLIANCE COAL134,16865.2612,3373.069.40ContractBITRail
2026-03EIA row 5117 · preliminaryCalvert City8837 · KY · ALLIANCE COAL53,81276.3612,2533.029.40ContractBITRail
2026-02EIA row 2054 · preliminarySeminole (FL)136 · FL · ALLIANCE COAL14,28177.5312,2103.049.50ContractBITRail
2026-02EIA row 2242 · preliminaryMill Creek (KY)1364 · KY · ALLIANCE COAL190,21672.7312,4112.988.60ContractBITRail
2026-02EIA row 3216 · preliminaryCalvert City8837 · KY · ALLIANCE COAL133,02766.0312,2603.019.70ContractBITRail
2026-02EIA row 3217 · preliminaryCalvert City8837 · KY · ALLIANCE COAL38,07875.4512,2213.019.60ContractBITRail
2026-01EIA row 38 · preliminarySeminole (FL)136 · FL · ALLIANCE COAL41,05976.8612,2702.979.30ContractBITRail
Coverage, sources and calculations
  • Reported coal receipts at EIA-923 power plants/terminals; this is not a census of mine shipments, exports or metallurgical sales.
  • Matches use only the published MSHA ID, normalized to seven digits. Unidentified mine origins remain in the source table but are not assigned to a mine.
  • Portfolio attribution uses current MSHA ownership, not ownership at the shipment date. Receipts and production can differ because of timing, stocks and coverage.
  • Quality means are weighted by positive reported tons with that measurement. Delivered cost uses only rows with published cost, positive heat and positive tons; missing/withheld costs are never zero-filled.
  • USD/ton = (cents/MMBtu ÷ 100) × MMBtu/ton. This is plant delivered cost, not mine sales price or revenue.
  • Receipt month is as published, including records supplied by annual respondents. Recent months are preliminary and subject to revision. Missing rows do not prove zero shipments.

Imported releases start 2008-01. This window includes 12 published months. EIA releases · Survey instructions

  • 2026 · preliminary · EIA923_Schedules_2_3_4_5_M_07_2026_21SEP2026.xlsx · Page 5 Fuel Receipts and Costs
  • 2025 · final · EIA923_Schedules_2_3_4_5_M_12_2025_Final.xlsx · Page 5 Fuel Receipts and Costs

Latest priced year: 2024Source checked 2026-10-18. Prices apply only to their calendar year.

FOB PRICE BENCHMARK · USD/TON—Published county average
ESTIMATED SALES · SHORT TONS—Allocated from published county sales
ESTIMATED COAL REVENUE · USD—Covered mines only · not reported revenue
ANNUAL PRODUCTION COVERED0.0%0 of 1 producing annual mine records
Mine / countyAnnual production · tonsCounty FOB · USD/tonEst. sales · tonsEst. coal revenue · USDBasis / availability
Cardinal1517216 · Hopkins, Kentucky4,406,080———County sales or price not published1 eligible mines / 1 sales respondents
Method, assumptions and source records
  1. This is an annual county-sales allocation, not reported mine or company revenue. Currency is nominal USD in the source year; quantities are short tons.
  2. Mine share = same-year annual mine production / eligible same-county production. Estimated sales = published county sales × share. Estimated coal revenue = estimated sales × published county average FOB price.
  3. The model assumes eligible mines share county sales in proportion to production and receive the county-average price. Matching mine counts is a check, not proof of identical respondents. Mine quality, contracts and sales timing can differ substantially. No statistical confidence interval is implied.
  4. FOB excludes transport and insurance. EIA-923 delivered costs do not enter this model. No grade premium, state/national fallback, quarterly apportionment or carry-forward to a later year is applied.
  5. Eligibility follows the source's production threshold and excludes preparation-only and refuse operations. Withheld values, inconsistent county counts and missing/ambiguous locations produce no estimate.
  6. County sales are published in thousands of tons and prices to cents. Calculations retain precision, but the inputs are rounded and the allocation is approximate.
  7. Portfolio attribution uses current MSHA ownership, not ownership during the sales year. Covered-mine sums exclude unavailable estimates and must not be read as whole-company revenue. Coverage denominators use the annual EIA mine-production release.

Sales-reporting threshold: 50,000 short tons per mine in 2024. Withheld sales or prices stay unavailable.

EIA Table 30 · county sales and FOB prices · EIA annual mine production · Release index

Annual report released November 19, 2025. Method: county-sales-allocation-v1. JSON and CSV preserve source row numbers and file checksums.

OWNERSHIP

Operator and controller history

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

CURRENT HIERARCHYAlliance Resource Partners LP → WARRIOR COAL LLC → CARDINAL
HISTORY RECORDS26 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Alliance Resource Partners LPcontrolsWarrior Coal LLCoperatesCARDINAL

msha-controller-operator-history · controller/operator co-tenure derived on mine 1517216
—

Paul E Roberts et alcontrolsRoberts Brothers Coal Company IncoperatesCARDINAL

msha-controller-operator-history · controller/operator co-tenure derived on mine 1517216
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

1,040 historical accident/injury rows; 5 coded fatalities and 19,189 lost days across the published record.

ACCIDENT + INJURY RECORD272 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

11,034 violation rows across the full record; 2,520 carry an S&S flag and $4,823,312 appears in current assessed amounts.

ENFORCEMENT ACTIVITY3,605 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

42,203 coal dust; 2,624 coal quartz; 1,700 noise. 0 personal-sample rows have a published C/E ratio above 1; 574 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 EXPOSURE47K samples
coal-dust-samplesquartz-samplesnoise-samples
04 / PRODUCTIONcontext

Quarterly production and employment

266K employee hours and 420 summed average employees across reported subunits in the latest published quarter.

2026-Q21.1M tons
mine-production-quarterlymine-production-yearly
05 / LEGALwatch

Contests, conferences and decisions

2,702 contested-violation rows, 2,703 civil-penalty docket/decision rows, and 1,045 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE6,450 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

2,001 inspection events and 151K published inspection hours across the historical record.

OVERSIGHT COVERAGE556 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records127127 coal · 0 personal · 0 area
Sample status127 not voided0 voided · 0 status not reported
Mean coal quartz concentration11.33 µg/m³127 eligible measurements · 0 missing concentration
2026 · Jan 21, 2026–Aug 18, 2026
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished action
58547974 / lab 2026034081Coal quartzQuartzCONTINUOUS MINER OPERATORDESIGNATED OCCUPATION5 µg/m³0.9% quartzNot voidedNot reported
58547988 / lab 2026034076Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION5 µg/m³0.9% quartzNot voidedNot reported
58547989 / lab 2026034080Coal quartzQuartzROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION24 µg/m³3.3% quartzNot voidedNot reported
58547984 / lab 2026034079Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION1 µg/m³0.3% quartzNot voidedNot reported
58547932 / lab 2026033902Coal quartzQuartzCONTINUOUS MINER OPERATORDESIGNATED OCCUPATION3 µg/m³0.8% quartzNot voidedNot reported
58547962 / lab 2026033899Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION4 µg/m³0.6% quartzNot voidedNot reported
58547991 / lab 2026033897Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION3 µg/m³0.4% quartzNot voidedNot reported
58547956 / lab 2026033900Coal quartzQuartzROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION16 µg/m³2.6% quartzNot voidedNot reported
58547936 / lab 2026033653Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION1 µg/m³0.1% quartzNot voidedNot reported
58547965 / lab 2026033649Coal quartzQuartzROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION47 µg/m³3.7% quartzNot voidedNot reported
58547925 / lab 2026033650Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION1 µg/m³0.1% quartzNot voidedNot reported
58547963 / lab 2026033652Coal quartzQuartzCONTINUOUS MINER OPERATORDESIGNATED OCCUPATION0 µg/m³—% quartzNot voidedNot reported
58547776 / lab 2026030537Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION1 µg/m³0.3% quartzNot voidedNot reported
58547772 / lab 2026030545Coal quartzQuartzROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION13 µg/m³1.4% quartzNot voidedNot reported
58547774 / lab 2026030547Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION1 µg/m³0.3% quartzNot voidedNot reported
58547855 / lab 2026030549Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION3 µg/m³0.6% quartzNot voidedNot reported
58547854 / lab 2026030540Coal quartzQuartzCONTINUOUS MINER OPERATORDESIGNATED OCCUPATION6 µg/m³0.9% quartzNot voidedNot reported
58547848 / lab 2026030542Coal quartzQuartzROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION27 µg/m³2.4% quartzNot voidedNot reported
58547843 / lab 2026030543Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION4 µg/m³0.8% quartzNot voidedNot reported
58547794 / lab 2026029855Coal quartzQuartzSHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION4 µg/m³1.3% quartzNot voidedNot reported
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
504526975.517S&S
504526875.370(a)(1)Citation
522127275.325(f)(3)S&S
522100175.380(d)(7)(vi)Citation
504526775.342(a)(4)Citation
522127175.604(b)S&S
522127075.517S&S
522121575.370(a)(1)Citation
OTHER HEALTH SAMPLES8 latest shown

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

Coal dustROOF BOLTER (TWIN HEAD) (RETURN SIDE)
.556 mg/m³Not voided
Coal dustROOF BOLTER (TWIN HEAD) (INTAKE SIDE)
.429 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.268 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.648 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.722 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.491 mg/m³Voided
Coal dustCONTINUOUS MINER OPERATOR
.491 mg/m³Not voided
Coal dustROOF BOLTER (TWIN HEAD) (RETURN SIDE)
.599 mg/m³Not voided

SOURCE COVERAGE

Reporting dates and coverage

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

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors1,040Jan 11, 2000—Sep 18, 2026mine-keyed
Addresses of Recordidentity · logistics1Jun 14, 1993—Jun 14, 1993mine-keyed
Assessed Violationscompliance · legal10,826Jan 7, 2000—Sep 4, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal2,703Mar 12, 2003—Sep 28, 2026mine-keyed
Coal Dust Sampleshealth · safety42,203Jan 6, 2000—Oct 15, 2026mine-keyed
Conferencescompliance · legal1,045Feb 24, 2000—Feb 19, 2026mine-keyed
Contested Violationscompliance · legal2,702Apr 21, 2003—Aug 6, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety2,897Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety528Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Mar 1, 1992—Jan 27, 2001mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance312Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance80Not published—Not publishedmine-keyed
Inspectionssafety · compliance2,001Jan 4, 2000—Oct 13, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety—No published rowsabsent / not applicable
Metal and Nonmetal Personal Health Sampleshealth · safety—No published rowsabsent / not applicable
Noise Sampleshealth · safety · equipment1,700Mar 1, 2000—Sep 22, 2026mine-keyed
Quartz Samples — Coalhealth · safety2,624Mar 13, 2000—Aug 18, 2026mine-keyed
Violationscompliance · safety · legal11,034Jan 7, 2000—Oct 15, 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.