MINE DETAILS
West Elk Mine
MSHA MINE ID0503672
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- West Elk Mine38.93306, -107.45806Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
5,932,112reported short tons
Hours worked
858,989reported employee hours
Tons per hour
6.91production ÷ 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 | 713,265 | 154,020 | 4.63 | 307 | 1/1 mines reporting |
| 2025 Q2 | 831,070 | 150,927 | 5.51 | 288 | 1/1 mines reporting |
| 2025 Q3 | 697,339 | 141,018 | 4.95 | 291 | 1/1 mines reporting |
| 2025 Q4 | 996,866 | 135,229 | 7.37 | 281 | 1/1 mines reporting |
| 2026 Q1 | 1,173,389 | 138,909 | 8.45 | 273 | 1/1 mines reporting |
| 2026 Q2 | 1,520,183 | 138,886 | 10.95 | 276 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
47956 significant & substantial (S&S)
Accident records
190 records classified as fatality
Proposed penalties · USD
864,670.00448 of 479 violations with amounts
On-site inspection hours
4,504.50156 inspections · 156 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 | 80 | 15 | 407,680.00 | 3 | 0 | 22 | 689.5 |
| 2025-Q2 | 59 | 7 | 288,375.00 | 5 | 0 | 21 | 593.0 |
| 2025-Q3 | 68 | 4 | 27,833.00 | 2 | 0 | 22 | 701.8 |
| 2025-Q4 | 77 | 2 | 26,557.00 | 4 | 0 | 21 | 618.3 |
| 2026-Q1 | 55 | 9 | 39,625.00 | 1 | 0 | 21 | 599.0 |
| 2026-Q2 | 79 | 10 | 29,793.00 | 3 | 0 | 26 | 732.0 |
| 2026-Q3 | 48 | 9 | 44,807.00 | 1 | 0 | 20 | 526.8 |
| 2026-Q4 * | 13 | 0 | — | 0 | 0 | 3 | 44.3 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
75.400
75.400
75.1725(a)
103(i) Spot Inspections · 7.0 on-site hours
Description not reported
75.1403
75.370(a)(1)
Description not reported
75.1913(b)
75.1104
75.400
75.1910(j)
75.807
103(i) Spot Inspections · 0.0 on-site hours
75.517
Regular Safety and Health Inspection · 37.3 on-site hours
75.1714-4(b)
103(i) Spot Inspections · 6.5 on-site hours
75.1714-3(b)
47.41(a)(1)
77.1605(d)
77.502
103(i) Spot Inspections · 2.0 on-site hours
103(i) Spot Inspections · 5.0 on-site hours
75.370(a)(1)
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.
EIA-923 · COAL RECEIPTS
Coal shipments and quality
Receipts reported by power plants and terminals, matched by MSHA mine ID.
Quarterly receipts and quality
| Quarter | Short tons | Heat · Btu/lb | Sulfur % | Ash % | Delivered USD/ton | |
|---|---|---|---|---|---|---|
| 2025-Q3 * | 57,381 | 11,830 | 0.52 | 8.56 | — | |
| 2025-Q4 | 152,642 | 11,733 | 0.58 | 8.89 | 141.10 | |
| 2026-Q1 | 44,577 | 11,827 | 0.55 | 8.93 | 107.85 | |
| 2026-Q2 | 121,355 | 11,531 | 0.46 | 8.66 | 74.27 |
| Month / source | Receiving plant / supplier | Short tons | Delivered USD/ton | Heat · Btu/lb | Sulfur % | Ash % | Purchase | Transport |
|---|---|---|---|---|---|---|---|---|
| 2026-06EIA row 10607 · preliminary | Calvert City8837 · KY · MOUNTAIN COAL | 11,726 | 79.80 | 11,653 | 0.47 | 9.20 | SpotBIT | Rail |
| 2026-06EIA row 10720 · preliminary | TES Filer City Station50835 · MI · C REISS | 12,440 | —Not published | 11,820 | 0.48 | 8.90 | ContractBIT | Rail / WT |
| 2026-05EIA row 8729 · preliminary | Calvert City8837 · KY · MOUNTAIN COAL | 48,024 | 77.41 | 11,721 | 0.48 | 9.00 | SpotBIT | Rail |
| 2026-05EIA row 8841 · preliminary | TES Filer City Station50835 · MI · C REISS | 12,190 | —Not published | 11,605 | 0.47 | 10.30 | ContractBIT | Rail / WT |
| 2026-05EIA row 8842 · preliminary | TES Filer City Station50835 · MI · C REISS | 12,322 | —Not published | 11,530 | 0.50 | 10.10 | ContractBIT | Rail / WT |
| 2026-04EIA row 6702 · preliminary | Cope7210 · SC · CORE NATURAL RESOURCES, INC | 12,331 | 95.03 | 11,840 | 0.49 | 8.20 | SpotBIT | Rail |
| 2026-04EIA row 6941 · preliminary | Calvert City8837 · KY · MOUNTAIN COAL | 12,322 | 36.00 | 10,000 | 0.30 | 4.00 | SpotBIT | Rail |
| 2026-03EIA row 4692 · preliminary | Victor J Daniel Jr6073 · MS · CORE SALES INC | 118 | 108.07 | 11,819 | 0.56 | 9.00 | SpotBIT | Rail |
| 2026-02EIA row 2753 · preliminary | Victor J Daniel Jr6073 · MS · CORE SALES INC | 8,836 | 109.44 | 11,819 | 0.56 | 9.00 | SpotBIT | Rail |
| 2026-01EIA row 774 · preliminary | Victor J Daniel Jr6073 · MS · CORE SALES INC | 24,530 | 107.27 | 11,819 | 0.56 | 9.00 | SpotBIT | Rail |
| 2026-01EIA row 1309 · preliminary | Argus Cogen Plant10684 · CA · ARCH COAL SALES | 11,093 | —Not published | 11,850 | 0.50 | 8.70 | ContractBIT | Rail |
| 2025-12EIA row 34816 · final | Victor J Daniel Jr6073 · MS · CORE SALES INC | 36,889 | 141.10 | 11,762 | 0.56 | 9.40 | SpotBIT | Rail |
| 2025-12EIA row 35625 · final | Argus Cogen Plant10684 · CA · ARCH COAL SALES | 43,547 | —Not published | 11,800 | 0.51 | 8.70 | ContractBIT | Rail |
| 2025-11EIA row 32612 · final | Argus Cogen Plant10684 · CA · ARCH COAL SALES | 37,567 | —Not published | 11,750 | 0.67 | 8.70 | ContractBIT | Rail |
| 2025-10EIA row 29671 · final | Argus Cogen Plant10684 · CA · ARCH COAL SALES | 34,639 | —Not published | 11,600 | 0.57 | 8.80 | ContractBIT | Rail |
| 2025-09EIA row 26615 · final | Argus Cogen Plant10684 · CA · ARCH COAL SALES | 34,028 | —Not published | 11,850 | 0.52 | 8.40 | ContractBIT | Rail |
| 2025-08EIA row 23525 · final | Argus Cogen Plant10684 · CA · ARCH COAL SALES | 23,353 | —Not published | 11,800 | 0.53 | 8.80 | ContractBIT | Rail |
Delivered cost includes transport and is not mine revenue. Missing prices remain blank. * Fewer than three months are published in the selected quarter. Receipts reflect the months EIA has published; an unfinished quarter is not comparable with a full quarter. Portfolio matches use current ownership.
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
EIA ANNUAL COAL REPORT · 2024
Coal prices and estimated revenue
Annual county prices and a production-based allocation of county coal sales.
The estimate assumes each eligible mine receives its county-average price and shares county sales in proportion to production. Actual sales and prices can differ substantially. Unavailable estimates are excluded; this is not a total for the whole portfolio. Annual price data uses a separate window from the MSHA charts.
| Mine / county | Annual production · tons | County FOB · USD/ton | Est. sales · tons | Est. coal revenue · USD | Basis / availability |
|---|---|---|---|---|---|
| West Elk Mine0503672 · Gunnison, Colorado | 3,705,019 | — | — | — | County sales or price not published1 eligible mines / 1 sales respondents |
Method, assumptions and source records
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
—
Core Natural Resources InccontrolsMountain Coal Company, L.L.C.operatesWest Elk Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0503672—
Arch Resources InccontrolsMountain Coal Company, L.L.C.operatesWest Elk Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0503672—
Atlantic Richfield CompanycontrolsMountain Coal CompanyoperatesWest Elk Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0503672Other 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
413 historical accident/injury rows; 2 coded fatalities and 7,660 lost days across the published record.
ACCIDENT + INJURY RECORD55 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
6,903 violation rows across the full record; 1,012 carry an S&S flag and $4,338,613 appears in current assessed amounts.
ENFORCEMENT ACTIVITY1,391 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
14,961 coal dust; 654 coal quartz; 814 noise. 0 personal-sample rows have a published C/E ratio above 1; 262 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 EXPOSURE16K samples
coal-dust-samplesquartz-samplesnoise-samples04 / PRODUCTIONcontext
Quarterly production and employment
139K employee hours and 276 summed average employees across reported subunits in the latest published quarter.
2026-Q21.5M tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
545 contested-violation rows, 593 civil-penalty docket/decision rows, and 217 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE1,355 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / 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 CONTEXT45 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
2,430 inspection events and 97K published inspection hours across the historical record.
OVERSIGHT COVERAGE497 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 654 silica records across the mine’s published history.
Coal quartz concentration
Quarterly mean · µg/m³ · not-voided samples
— No eligible measurements. * Quarter in progress. Means describe the available samples, not average exposure across the mine.
Quartz % is the sample’s quartz content; µg/m³ is its reported concentration. Personal C/E is the ratio to the limit published with that sample. Personal and area concentration units and void status are not specified in those source files.
| Date / sample | Dataset / analyte | Occupation / area | Measurement | Sample status | Published action |
|---|---|---|---|---|---|
| 58516680 / lab 2026031194 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDINTAKE AIR | 4 µg/m³2.2% quartz | Not voided | Not reported |
| 58517110 / lab 2026031196 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 42 µg/m³5.8% quartz | Not voided | Not reported |
| 58517145 / lab 2026031190 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 28 µg/m³4.8% quartz | Not voided | Not reported |
| 58516617 / lab 2026022721 | Coal quartzQuartz | LONGWALL OPERATOR (TAILGATE SIDE)DESIGNATED OCCUPATION | 21 µg/m³2.9% quartz | Not voided | Not reported |
| 58517052 / lab 2026022717 | Coal quartzQuartz | JACK SETTER (LONGWALL)NON DESIGNATED OCCUPATION | 21 µg/m³2.5% quartz | Not voided | Not reported |
| 58516633 / lab 2026022724 | Coal quartzQuartz | MECHANICNON DESIGNATED OCCUPATION | 12 µg/m³2.8% quartz | Not voided | Not reported |
| 58516654 / lab 2026022719 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDINTAKE AIR | 16 µg/m³3.4% quartz | Not voided | Not reported |
| 58516663 / lab 2026018817 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 35 µg/m³5.5% quartz | Not voided | Not reported |
| 58516666 / lab 2026018814 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDINTAKE AIR | 3 µg/m³1.4% quartz | Not voided | Not reported |
| 58517138 / lab 2026018813 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 10 µg/m³4.1% quartz | Not voided | Not reported |
| 58517086 / lab 2026018818 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 26 µg/m³3.9% quartz | Not voided | Not reported |
| 58517137 / lab 2026018409 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 13 µg/m³2.9% quartz | Not voided | Not reported |
| 58516671 / lab 2026018408 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 25 µg/m³3.8% quartz | Not voided | Not reported |
| 58517133 / lab 2026018417 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDINTAKE AIR | 8 µg/m³2.6% quartz | Not voided | Not reported |
| 58516319 / lab 2026003939 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDINTAKE AIR | 56 µg/m³6.9% quartz | Not voided | Not reported |
| 58516327 / lab 2026003940 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 65 µg/m³7.5% quartz | Not voided | Not reported |
| 58516320 / lab 2026003944 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 68 µg/m³7.1% quartz | Not voided | Not reported |
| 58516332 / lab 2026000416 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDINTAKE AIR | 0 µg/m³—% quartz | Not voided | Not reported |
| 58516454 / lab 2026000414 | Coal quartzQuartz | JACK SETTER (LONGWALL)NON DESIGNATED OCCUPATION | 14 µg/m³1.9% quartz | Not voided | Not reported |
| 58516566 / lab 2026000412 | Coal quartzQuartz | MECHANICNON DESIGNATED OCCUPATION | 0 µg/m³—% quartz | Not voided | Not 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.
ANNUAL COAL PRODUCTION3,705,019short tons
- LABOR HOURS
- 652,830
- AVG EMPLOYEES
- 323
- SUPPLY REGION
- Uinta Region
- UNION
- No union code published
- OPERATION
- Mine and Preparation Plant
- COMPANY TYPE
- Operating Subsidiary
1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.
30 CFR 75.400Accumulation of combustible materials.3 recent rows ↗30 CFR 75.1725Machinery and equipment; operation and maintenance.1 recent row ↗30 CFR 75.1403Other safeguards.1 recent row ↗30 CFR 75.370Mine ventilation plan; submission and approval.1 recent row ↗30 CFR 75.1913Starting aids.1 recent row ↗30 CFR 75.1104Underground storage, lubricating oil and grease.1 recent row ↗30 CFR 75.1910Nonpermissible diesel-powered equipment; electrical system design and performance requirements.1 recent row ↗30 CFR 75.807Installation of high-voltage transmission cables.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
503290475.400Citation
503278675.400Citation
503278575.1725(a)Citation
5032784—Citation
503228775.1403Citation
973335475.370(a)(1)Citation
5032783—Citation
503175875.1913(b)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Coal dustCONTINUOUS MINER OPERATOR
.591 mg/m³Voided · INVALID PRODUCTION
Coal dustCONTINUOUS MINER OPERATOR
.345 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.828 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.263 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.307 mg/m³Voided · INVALID PRODUCTION
Coal dustCONTINUOUS MINER OPERATOR
.43 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
1.369 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.077 mg/m³Not voided
SOURCE COVERAGE
Reporting dates and coverage
17 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors413Jan 11, 2000—Aug 11, 2026mine-keyed
Addresses of Recordidentity · logistics1Apr 19, 2002—Apr 19, 2002mine-keyed
Assessed Violationscompliance · legal6,738Jan 12, 2000—Sep 1, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal593Apr 24, 2000—Sep 4, 2026mine-keyed
Coal Dust Sampleshealth · safety14,961Jan 6, 2000—Oct 7, 2026mine-keyed
Conferencescompliance · legal217Mar 9, 2000—Mar 16, 2026mine-keyed
Contested Violationscompliance · legal545Jan 28, 2003—Jun 24, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety7,477Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety1,509Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance3Apr 1, 1981—Mar 23, 1998mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance381Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance98Not published—Not publishedmine-keyed
Inspectionssafety · compliance2,430Jan 4, 2000—Oct 7, 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 · equipment814Feb 27, 2001—Jul 28, 2026mine-keyed
Quartz Samples — Coalhealth · safety654Aug 20, 2000—Jul 28, 2026mine-keyed
Violationscompliance · safety · legal6,903Jan 12, 2000—Oct 8, 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.