MINE DETAILS
Calvary No 81
MSHA MINE ID1512753
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Calvary No 8137.11917, -83.23944Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
410,165reported short tons
Hours worked
363,648reported employee hours
Tons per hour
1.13production ÷ 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 | 82,101 | 73,008 | 1.12 | 121 | 1/1 mines reporting |
| 2025 Q2 | 77,888 | 64,628 | 1.21 | 119 | 1/1 mines reporting |
| 2025 Q3 | 53,986 | 54,684 | 0.99 | 104 | 1/1 mines reporting |
| 2025 Q4 | 68,648 | 56,600 | 1.21 | 100 | 1/1 mines reporting |
| 2026 Q1 | 65,610 | 59,012 | 1.11 | 98 | 1/1 mines reporting |
| 2026 Q2 | 61,932 | 55,716 | 1.11 | 96 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
22430 significant & substantial (S&S)
Accident records
80 records classified as fatality
Proposed penalties · USD
66,566.00204 of 224 violations with amounts
On-site inspection hours
2,936.7527 inspections · 27 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 | 50 | 1 | 11,374.00 | 1 | 0 | 3 | 481.5 |
| 2025-Q2 | 31 | 5 | 8,513.00 | 0 | 0 | 1 | 425.0 |
| 2025-Q3 | 43 | 7 | 22,942.00 | 3 | 0 | 7 | 572.5 |
| 2025-Q4 | 23 | 7 | 9,353.00 | 0 | 0 | 3 | 337.8 |
| 2026-Q1 | 22 | 4 | 6,031.00 | 1 | 0 | 4 | 371.3 |
| 2026-Q2 | 21 | 1 | 4,216.00 | 0 | 0 | 2 | 350.8 |
| 2026-Q3 | 24 | 3 | 4,137.00 | 3 | 0 | 6 | 351.0 |
| 2026-Q4 * | 10 | 2 | — | 0 | 0 | 1 | 47.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
75.380(d)(7)(vi)
75.1107-16(b)
75.1731(a)
75.380(d)(7)(i)
75.1103-5(a)(1)
75.520
75.1725(a) · S&S
75.380(d)(7)(vi)
75.512
Regular Safety and Health Inspection · 47.0 on-site hours
75.220(a)(1) · S&S
Spot Inspection · 8.0 on-site hours
Spot Inspection · 7.0 on-site hours
FALL OF ROOF OR BACK · ACCIDENT ONLY
Accident narrative
Deterioration of the roof in a transition zone from sandstone to shale. This fell in the belt line entry and there were no negative impacts on air or the travel entries. .
Non-Injury Accident Investigation · 31.8 on-site hours
75.202(a) · S&S
Description not reported
Non-Injury Accident Investigation · 12.0 on-site hours
75.202(a) · S&S · $549.00 proposed
Description not reported
FALL OF ROOF OR BACK · ACCIDENT ONLY
Accident narrative
A non-injury roof fall occurred on the Pigeonroost Mains in by x-cut 43. The fall was approximately 16' x 20' x 3'. This was a result of deterioration in a transition zone from sandstone to shale.
75.1403
75.512 · $151.00 proposed
77.400(a) · $151.00 proposed
72.630(b) · $177.00 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.
EIA-923 · COAL RECEIPTS
Coal shipments and quality
Receipts reported by power plants and terminals, matched by MSHA mine ID.
No receipts matched this mine in the selected period. EIA-923 does not cover all mine sales, exports or metallurgical coal shipments.
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 |
|---|---|---|---|---|---|
| Calvary No 811512753 · Leslie, Kentucky | 348,428 | — | — | — | County sales or price not published2 eligible mines / 2 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.
—
Sev.en Global Investments a.s.controlsBlue Diamond Coal CooperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Blackhawk Mining LLCcontrolsBlue Diamond Coal CooperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
James River Coal CompanycontrolsBlue Diamond Coal CooperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Charles CollinscontrolsCalvary Coal Co. IncoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Blue Diamond Coal CompanycontrolsBlue Diamond Coal CompanyoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Leroy Lackey et alcontrolsSovereign Mining CompanyoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Amax Inc et alcontrolsKentucky Prince Mining CompanyoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Petrofina Oil Company et alcontrolsKentucky Prince Mining CompanyoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Consumers Coal CompanycontrolsKentucky Prince Coal CorpoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Coal Ridge Fuels Of Hazard InccontrolsRiver Processing IncoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753—
Pargas InccontrolsRiver Processing IncoperatesCalvary No 81
msha-controller-operator-history · controller/operator co-tenure derived on mine 1512753Other 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
183 historical accident/injury rows; 0 coded fatalities and 6,922 lost days across the published record.
ACCIDENT + INJURY RECORD33 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
4,462 violation rows across the full record; 1,090 carry an S&S flag and $2,458,153 appears in current assessed amounts.
ENFORCEMENT ACTIVITY931 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
8,568 coal dust; 661 coal quartz; 818 noise. 0 personal-sample rows have a published C/E ratio above 1; 146 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 EXPOSURE10K samples
coal-dust-samplesquartz-samplesnoise-samples04 / PRODUCTIONcontext
Quarterly production and employment
56K employee hours and 96 summed average employees across reported subunits in the latest published quarter.
2026-Q262K tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
1,233 contested-violation rows, 1,233 civil-penalty docket/decision rows, and 106 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE2,572 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 CONTEXT18 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
299 inspection events and 54K published inspection hours across the historical record.
OVERSIGHT COVERAGE87 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 661 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 |
|---|---|---|---|---|---|
| 58545805 / lab 2026032402 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 6 µg/m³2.7% quartz | Not voided | Not reported |
| 58545806 / lab 2026032400 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 20 µg/m³6.6% quartz | Not voided | Not reported |
| 58545614 / lab 2026032403 | Coal quartzQuartz | MOBILE BRIDGE OPERATORNON DESIGNATED OCCUPATION | 8 µg/m³3.3% quartz | Not voided | Not reported |
| 58545811 / lab 2026032397 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 17 µg/m³4% quartz | Not voided | Not reported |
| 58546130 / lab 2026028911 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 50 µg/m³6.8% quartz | Not voided | Not reported |
| 58546131 / lab 2026028910 | Coal quartzQuartz | MOBILE BRIDGE OPERATORNON DESIGNATED OCCUPATION | 20 µg/m³5.4% quartz | Not voided | Not reported |
| 58546191 / lab 2026021569 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 32 µg/m³12.4% quartz | Not voided | Not reported |
| 58545851 / lab 2026021567 | Coal quartzQuartz | MOBILE BRIDGE OPERATORNON DESIGNATED OCCUPATION | 29 µg/m³10.2% quartz | Not voided | Not reported |
| 58538086 / lab 2026020891 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 5 µg/m³2.7% quartz | Not voided | Not reported |
| 58538094 / lab 2026020888 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 9 µg/m³2% quartz | VoidedINVALID SAMPLE TYPE | Not reported |
| 58538047 / lab 2026020890 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 5 µg/m³1.4% quartz | Not voided | Not reported |
| 58538048 / lab 2026020887 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 8 µg/m³1.9% quartz | Not voided | Not reported |
| 58538004 / lab 2026014867 | Coal quartzQuartz | MOBILE BRIDGE OPERATORNON DESIGNATED OCCUPATION | 24 µg/m³7.3% quartz | Not voided | Not reported |
| 58538099 / lab 2026014864 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 27 µg/m³9.3% quartz | Not voided | Not reported |
| 58538197 / lab 2026014861 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 17 µg/m³3.9% quartz | Not voided | Not reported |
| 58538005 / lab 2026014863 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 40 µg/m³7.3% quartz | Not voided | Not reported |
| 58538239 / lab 2026008838 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 36 µg/m³8.8% quartz | Not voided | Not reported |
| 58538291 / lab 2026008839 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 65 µg/m³14.4% quartz | Not voided | Not reported |
| 58538010 / lab 2026008843 | Coal quartzQuartz | MOBILE BRIDGE OPERATORNON DESIGNATED OCCUPATION | 113 µg/m³12.4% quartz | Not voided | Not reported |
| 58538242 / lab 2026008840 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 163 µg/m³11.5% 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 PRODUCTION348,428short tons
- LABOR HOURS
- 311,766
- AVG EMPLOYEES
- 121
- SUPPLY REGION
- Appalachia Central
- UNION
- No union code published
- OPERATION
- Mine only
- COMPANY TYPE
- Operating Subsidiary
1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.
30 CFR 75.380Escapeways; bituminous and lignite mines.3 recent rows ↗30 CFR 75.1107-16Inspection of fire suppression devices.1 recent row ↗30 CFR 75.1731Maintenance of belt conveyors and belt conveyor entries.1 recent row ↗30 CFR 75.1103-5Automatic fire warning devices; actions and response.1 recent row ↗30 CFR 75.520Electric equipment; switches.1 recent row ↗30 CFR 75.1725Machinery and equipment; operation and maintenance.1 recent row ↗30 CFR 75.512Electric equipment; examination, testing and maintenance.1 recent row ↗30 CFR 75.220Roof control plan.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
508328775.380(d)(7)(vi)Citation
508328675.1107-16(b)Citation
508328575.1731(a)Citation
508328475.380(d)(7)(i)Citation
508328375.1103-5(a)(1)Citation
508328275.520Citation
508251175.1725(a)S&S
508328175.380(d)(7)(vi)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Coal dustCONTINUOUS MINER OPERATOR
.423 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.586 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
1.258 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.37 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.072 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.167 mg/m³Voided
Coal dustCONTINUOUS MINER OPERATOR
.474 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.541 mg/m³Not voided
SOURCE COVERAGE
Reporting dates and coverage
17 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors183Feb 16, 2000—Aug 19, 2026mine-keyed
Addresses of Recordidentity · logistics1Jul 14, 2020—Jul 14, 2020mine-keyed
Assessed Violationscompliance · legal4,358Jan 7, 2000—Aug 14, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal1,233Jun 4, 2001—Jul 1, 2026mine-keyed
Coal Dust Sampleshealth · safety8,568Jan 17, 2000—Oct 8, 2026mine-keyed
Conferencescompliance · legal106Jul 25, 2000—Jul 22, 2024mine-keyed
Contested Violationscompliance · legal1,233Feb 20, 2007—Jan 15, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,448Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety354Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance11Mar 1, 1981—Sep 4, 2014mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance205Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance44Not published—Not publishedmine-keyed
Inspectionssafety · compliance299Jan 6, 2000—Oct 1, 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 · equipment818Oct 11, 2005—Aug 6, 2026mine-keyed
Quartz Samples — Coalhealth · safety661Mar 13, 2000—Aug 6, 2026mine-keyed
Violationscompliance · safety · legal4,462Jan 7, 2000—Oct 7, 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.