MINE DETAILS

TUNNEL RIDGE MINE

ActiveUndergroundCoal (Bituminous)

MSHA MINE ID4608864

OPERATORTunnel Ridge, LLC

CONTROLLERAlliance Resource Partners LP

LOCATIONOhio, WV

PUBLIC RECORD32,454 linked rows

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

TUNNEL RIDGE MINE40.09611, -80.58722Open map ↗

Quarterly trends

2025 Q1 – 2026 Q4

JSON CSV

Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.

Coal production

8,756,235

reported short tons

2025 Q11,236,037
2025 Q21,249,332
2025 Q31,509,834
2025 Q41,252,815
2026 Q11,593,884
2026 Q21,914,333
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported

Hours worked

1,710,129

reported employee hours

2025 Q1295,945
2025 Q2277,556
2025 Q3288,485
2025 Q4278,836
2026 Q1292,227
2026 Q2277,080
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported

Tons per hour

5.12

production ÷ hours worked

2025 Q14.18
2025 Q24.50
2025 Q35.23
2025 Q44.49
2026 Q15.45
2026 Q26.91
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported

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

Quarterly production, employment and reporting coverage for TUNNEL RIDGE MINE
Quarter	Coal (short tons)	Hours worked	Tons / hour	Avg. employees	Coverage
2025 Q1	1,236,037	295,945	4.18	495	1/1 mines reporting
2025 Q2	1,249,332	277,556	4.50	473	1/1 mines reporting
2025 Q3	1,509,834	288,485	5.23	475	1/1 mines reporting
2025 Q4	1,252,815	278,836	4.49	459	1/1 mines reporting
2026 Q1	1,593,884	292,227	5.45	569	1/1 mines reporting
2026 Q2	1,914,333	277,080	6.91	545	1/1 mines reporting
2026 Q3	—	—	—	—	No report
2026 Q4	—	—	—	—	No report

Safety and enforcement

2025-01-01 – 2026-10-13

Violations

221

12 significant & substantial (S&S)

2025 Q132
2025 Q229
2025 Q342
2025 Q421
2026 Q123
2026 Q251
2026 Q322
2026 Q4 *1

Accident records

0 records classified as fatality

2025 Q113
2025 Q24
2025 Q39
2025 Q45
2026 Q14
2026 Q27
2026 Q38
2026 Q4 *0

Proposed penalties · USD

62,037.00

214 of 221 violations with amounts

2025 Q16,635
2025 Q28,366
2025 Q321,947
2025 Q43,774
2026 Q16,205
2026 Q212,274
2026 Q32,836
2026 Q4 *—

On-site inspection hours

4,240.75

206 inspections · 206 with hours

2025 Q1672.75
2025 Q2641.75
2025 Q3594.25
2025 Q4598.25
2026 Q1462.25
2026 Q2643.75
2026 Q3599.25
2026 Q4 *28.50

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	Inspections	On-site hours
2025-Q1	32	3	6,635.00	13	27	672.8
2025-Q2	29	1	8,366.00	4	36	641.8
2025-Q3	42	2	21,947.00	9	32	594.3
2025-Q4	21	4	3,774.00	5	23	598.3
2026-Q1	23	1	6,205.00	4	25	462.3
2026-Q2	51	0	12,274.00	7	30	643.8
2026-Q3	22	1	2,836.00	8	29	599.3
2026-Q4 *	1	0	—	0	4	28.5

Most cited CFR sections

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

Section	Violations	S&S
30 CFR 75.400Accumulation of combustible materials.	34	0
30 CFR 75.370Mine ventilation plan; submission and approval.	20	2
30 CFR 75.1731Maintenance of belt conveyors and belt conveyor entries.	18	1
30 CFR 75.333Ventilation controls.	13	0
30 CFR 75.202Protection from falls of roof, face and ribs.	10	0
30 CFR 75.1403Other safeguards.	9	0
Not reported	9	0
30 CFR 75.380Escapeways; bituminous and lignite mines.	8	1
30 CFR 75.1403-5Criteria—Belt conveyors.	7	0
30 CFR 75.1403-6Criteria—Self-propelled personnel carriers.	6	1

Safety activity

inspection2026-10-08F038EFC
Health Technical Investigation · 4.5 on-site hours
inspection2026-10-07F015674
103(i) Spot Inspections · 6.0 on-site hours
violation2026-10-068045644
75.1505(a)
inspection2026-10-05F015673
103(i) Spot Inspections · 1.0 on-site hours
inspection2026-10-01F015672
Regular Safety and Health Inspection · 17.0 on-site hours
inspection2026-09-30F026A92
103(i) Spot Inspections · 2.8 on-site hours
inspection2026-09-23F01823D
103(i) Spot Inspections · 3.0 on-site hours
inspection2026-09-16F01823C
103(i) Spot Inspections · 6.0 on-site hours
inspection2026-09-14F01823B
103(i) Spot Inspections · 7.0 on-site hours
violation2026-09-145122815
75.1725(a)
violation2026-09-085122814
75.1403-6(b)(3)
inspection2026-09-06F026A90
103(i) Spot Inspections · 8.5 on-site hours
accident2026-09-04220262530005
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
The affected employee was assisting in the construction of a block wall when it collapsed as a coworker attempted to wedge the structure to the mine roof, striking the employee's lower leg with a falling block.
accident2026-09-03220262530003
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
Wood beams stacked against belt structure fell, striking employee in the back and lower legs.
inspection2026-09-03F038F00
Health Technical Investigation · 10.3 on-site hours
violation2026-09-039938029
77.1605(a)
inspection2026-09-01F01823A
103(i) Spot Inspections · 6.0 on-site hours
violation2026-08-315122813
75.1714-3(a)
inspection2026-08-27F018239
103(i) Spot Inspections · 6.0 on-site hours
inspection2026-08-25F018238
103(i) Spot Inspections · 6.0 on-site hours
inspection2026-08-20F038EFB
Health Technical Investigation · 11.0 on-site hours
inspection2026-08-18F026A8F
103(i) Spot Inspections · 8.0 on-site hours
violation2026-08-175122807
75.1403-6(b)(3)
inspection2026-08-13F018237
103(i) Spot Inspections · 7.0 on-site hours
inspection2026-08-13F037A3C
Non-Injury Accident Investigation · 3.0 on-site hours

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.

REPORTED RECEIPTS · SHORT TONS6,029,030195 rows · 13 receiving plants

HEAT CONTENT · BTU/LB12,605Weighted by reported tons

SULFUR / ASH · % BY WEIGHT2.95 / 8.60Separate averages over measured receipts

DELIVERED COST · USD/TON71.9769.0% of reported tons have usable costs

Quarterly receipts and quality

Quarter	Short tons	Heat · Btu/lb	Sulfur %	Ash %	Delivered USD/ton
2025-Q3 *	1,012,809	12,515	2.60	9.19	80.44
2025-Q4	1,260,892	12,618	3.52	8.61	82.10
2026-Q1	1,353,082	12,654	3.01	8.20	73.17
2026-Q2	1,740,551	12,621	2.64	8.46	63.82
2026-Q3 *	661,696	12,577	3.09	8.88	62.59

Month / source	Receiving plant / supplier	Short tons	Delivered USD/ton	Heat · Btu/lb	Sulfur %	Ash %	Purchase	Transport
2026-07EIA row 11772 · preliminary	Cardinal2828 · OH · ALLIANCE COAL	20,427	—Not published	12,550	3.28	9.10	ContractBIT	River
2026-07EIA row 11774 · preliminary	Cardinal2828 · OH · ALLIANCE COAL	55,522	—Not published	12,614	3.04	8.80	ContractBIT	River
2026-07EIA row 11786 · preliminary	Miami Fort2832 · OH · TUNNEL RIDGE LLC	36,990	—Not published	12,555	2.91	8.90	SpotBIT	River
2026-07EIA row 11787 · preliminary	Kyger Creek2876 · OH · ALLIANCE COAL	51,284	58.25	12,575	3.23	8.90	ContractBIT	River
2026-07EIA row 11791 · preliminary	Kyger Creek2876 · OH · ALLIANCE COAL	42,126	62.06	12,568	3.26	8.90	ContractBIT	River
2026-07EIA row 11929 · preliminary	John E Amos3935 · WV · ALLIANCE COAL	91,067	58.88	12,570	3.11	8.89	ContractBIT	River
2026-07EIA row 11930 · preliminary	John E Amos3935 · WV · ALLIANCE COAL	91,067	58.88	12,570	3.11	8.89	ContractBIT	River
2026-07EIA row 11933 · preliminary	FirstEnergy Fort Martin Power Station3943 · WV · TUNNEL RIDGE LLC	37,422	97.31	12,592	3.22	8.90	ContractBIT	River
2026-07EIA row 11936 · preliminary	FirstEnergy Fort Martin Power Station3943 · WV · TUNNEL RIDGE LLC	16,381	66.99	12,611	2.69	8.50	ContractBIT	River
2026-07EIA row 11998 · preliminary	Pleasants Power Station6004 · WV · TUNNEL RIDGE LLC	55,961	—Not published	12,580	3.23	8.90	SpotBIT	River
2026-07EIA row 12000 · preliminary	Pleasants Power Station6004 · WV · TUNNEL RIDGE LLC	30,089	—Not published	12,580	3.23	8.90	SpotBIT	River
2026-07EIA row 12007 · preliminary	East Bend6018 · KY · ALLIANCE COAL	92,895	60.00	12,558	2.99	9.00	ContractBIT	River
2026-07EIA row 12221 · preliminary	Mountaineer6264 · WV · ALLIANCE COAL	11,297	53.29	12,605	2.82	8.58	ContractBIT	River
2026-07EIA row 12222 · preliminary	Mountaineer6264 · WV · ALLIANCE COAL	11,297	53.29	12,605	2.82	8.58	ContractBIT	River
2026-07EIA row 12557 · preliminary	Keystone Fuels Terminal8845 · PA · ALLIANCE COAL	9,132	—Not published	12,611	2.43	8.70	ContractBIT	River / Truck
2026-07EIA row 12559 · preliminary	Conemaugh Fuels LLC -Terminal8846 · PA · ALLIANCE COAL	8,739	—Not published	12,636	2.92	8.80	ContractBIT	River / Truck
2026-06EIA row 9881 · preliminary	Cardinal2828 · OH · ALLIANCE COAL	13,800	—Not published	12,547	2.10	9.00	ContractBIT	River
2026-06EIA row 9882 · preliminary	Cardinal2828 · OH · ALLIANCE COAL	47,582	—Not published	12,592	2.51	8.70	ContractBIT	River
2026-06EIA row 9887 · preliminary	Miami Fort2832 · OH · TUNNEL RIDGE LLC	22,007	—Not published	12,601	2.37	8.50	SpotBIT	River
2026-06EIA row 9898 · preliminary	Kyger Creek2876 · OH · ALLIANCE COAL	87,193	57.09	12,596	2.27	8.70	ContractBIT	River
2026-06EIA row 9901 · preliminary	Kyger Creek2876 · OH · ALLIANCE COAL	74,651	60.90	12,613	2.50	8.60	ContractBIT	River
2026-06EIA row 10032 · preliminary	John E Amos3935 · WV · ALLIANCE COAL	68,602	59.45	12,595	2.29	8.57	ContractBIT	River
2026-06EIA row 10033 · preliminary	John E Amos3935 · WV · ALLIANCE COAL	68,602	59.45	12,595	2.29	8.57	ContractBIT	River
2026-06EIA row 10036 · preliminary	FirstEnergy Fort Martin Power Station3943 · WV · TUNNEL RIDGE LLC	28,574	97.84	12,628	2.16	8.40	ContractBIT	River
2026-06EIA row 10037 · preliminary	FirstEnergy Fort Martin Power Station3943 · WV · TUNNEL RIDGE LLC	5,921	66.26	12,641	2.39	8.50	ContractBIT	River

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.

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

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
Tunnel Ridge Mine4608864 · Ohio, West Virginia	6,030,327	—	—	—	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.

CURRENT HIERARCHYAlliance Resource Partners LP → Tunnel Ridge, LLC → TUNNEL RIDGE MINE

HISTORY RECORDS13 relationships

INTERVAL CHECKPASScontroller/operator overlap

Nov 1, 2000—CURRENT / OPEN

Alliance Resource Partners LPcontrolsTunnel Ridge, LLCoperatesTUNNEL RIDGE MINE

msha-controller-operator-history · controller/operator co-tenure derived on mine 4608864

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

511 historical accident/injury rows; 1 coded fatalities and 16,327 lost days across the published record.

ACCIDENT + INJURY RECORD206 since 2021

accidentsmine-production-quarterly

02 / COMPLIANCEwatch

Violations and penalties

3,589 violation rows across the full record; 733 carry an S&S flag and $1,830,202 appears in current assessed amounts.

ENFORCEMENT ACTIVITY682 since 2021

inspectionsviolationsassessed-violationsorders-107a

03 / HEALTHwatch

Occupational health samples

11,001 coal dust; 313 coal quartz; 722 noise. 0 personal-sample rows have a published C/E ratio above 1; 210 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 EXPOSURE12K samples

coal-dust-samplesquartz-samplesnoise-samples

04 / PRODUCTIONcontext

Quarterly production and employment

277K employee hours and 545 summed average employees across reported subunits in the latest published quarter.

2026-Q21.9M tons

mine-production-quarterlymine-production-yearly

05 / LEGALwatch

Contests, conferences and decisions

319 contested-violation rows, 319 civil-penalty docket/decision rows, and 45 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE683 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 CONTEXT44 linked entities

contractor-production-quarterlycontractor-production-yearlyaccidentsviolations

07 / INSPECTIONScontext

Inspections

1,588 inspection events and 66K published inspection hours across the historical record.

OVERSIGHT COVERAGE612 since 2021

inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 313 silica records across the mine’s published history.

Matching records2626 coal · 0 personal · 0 area

Sample status26 not voided0 voided · 0 status not reported

Mean coal quartz concentration18.35 µg/m³26 eligible measurements · 0 missing concentration

Coal quartz concentration

Quarterly mean · µg/m³ · not-voided samples

2026-Q1189 measurements
2026-Q216.888 measurements
2026-Q3209 measurements
2026-Q4*—0 measurements

— 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.

2026 · Jan 13, 2026–Sep 3, 2026
Date / sample	Dataset / analyte	Occupation / area	Measurement	Sample status	Published action
Sep 3, 202658602791 / lab 2026036744	Coal quartzQuartz	UTILITY MANDESIGNATED WORK POSITION	0 µg/m³—% quartz	Not voided	Not reported
Aug 20, 202658602911 / lab 2026034975	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	4 µg/m³2.4% quartz	Not voided	Not reported
Aug 20, 202658602775 / lab 2026034973	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	7 µg/m³2% quartz	Not voided	Not reported
Aug 12, 202658599752 / lab 2026032888	Coal quartzQuartz	LONGWALL OPERATOR (TAILGATE SIDE)DESIGNATED OCCUPATION	4 µg/m³1.5% quartz	Not voided	Not reported
Aug 12, 202658599697 / lab 2026032887	Coal quartzQuartz	JACK SETTER (LONGWALL)NON DESIGNATED OCCUPATION	7 µg/m³2.1% quartz	Not voided	Not reported
Jul 22, 202658603074 / lab 2026030527	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	21 µg/m³5.5% quartz	Not voided	Not reported
Jul 22, 202658603091 / lab 2026030525	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	16 µg/m³4.4% quartz	Not voided	Not reported
Jul 21, 202658600112 / lab 2026030575	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	44 µg/m³9.9% quartz	Not voided	Not reported
Jul 21, 202658600119 / lab 2026030577	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	77 µg/m³6.5% quartz	Not voided	Not reported
May 27, 202658599837 / lab 2026022339	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	25 µg/m³2.5% quartz	Not voided	Not reported
May 15, 202658562163 / lab 2026020877	Coal quartzQuartz	JACK SETTER (LONGWALL)NON DESIGNATED OCCUPATION	14 µg/m³2% quartz	Not voided	Not reported
May 15, 202658561862 / lab 2026020872	Coal quartzQuartz	LONGWALL OPERATOR (TAILGATE SIDE)DESIGNATED OCCUPATION	9 µg/m³1.8% quartz	Not voided	Not reported
May 15, 202658561961 / lab 2026020873	Coal quartzQuartz	MECHANICNON DESIGNATED OCCUPATION	6 µg/m³2% quartz	Not voided	Not reported
May 12, 202658561852 / lab 2026020328	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	44 µg/m³4.9% quartz	Not voided	Not reported
May 12, 202658561865 / lab 2026020331	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	9 µg/m³3.8% quartz	Not voided	Not reported
Apr 1, 202658561832 / lab 2026013994	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	15 µg/m³3.2% quartz	Not voided	Not reported
Apr 1, 202658561815 / lab 2026013993	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	13 µg/m³2.6% quartz	Not voided	Not reported
Feb 11, 202658561927 / lab 2026005765	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	4 µg/m³1.1% quartz	Not voided	Not reported
Feb 11, 202658561745 / lab 2026005768	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	7 µg/m³1.9% quartz	Not voided	Not reported
Jan 27, 202658562050 / lab 2026003801	Coal quartzQuartz	ROOF BOLTER (MOUNTED) (RETURN SIDE)NON DESIGNATED OCCUPATION	22 µg/m³2.8% 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.

EIA MINE CONTEXT2024 record

ANNUAL COAL PRODUCTION6,030,327short tons

LABOR HOURS: 1,177,820
AVG EMPLOYEES: 491
SUPPLY REGION: Appalachia Northern
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.

TITLE 30 CROSSWALKCurrent through 2026-08-19

30 CFR 75.1505Escapeway maps.1 recent row ↗30 CFR 75.1725Machinery and equipment; operation and maintenance.1 recent row ↗30 CFR 75.1403-6Criteria—Self-propelled personnel carriers.4 recent rows ↗30 CFR 77.1605Loading and haulage equipment; installations.1 recent row ↗30 CFR 75.1714-3Self-rescue devices; inspection, testing, maintenance, repair, and recordkeeping.1 recent row ↗30 CFR 75.364Weekly examination.1 recent row ↗30 CFR 75.1002Installation of electric equipment and conductors; permissibility.1 recent row ↗30 CFR 72.630Drill dust control at underground areas of underground mines.1 recent row ↗

RECENT PUBLIC RECORDS

Recent violations and samples

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

VIOLATIONS12 latest shown

Oct 6, 2026804564475.1505(a)Citation

Sep 14, 2026512281575.1725(a)Citation

Sep 8, 2026512281475.1403-6(b)(3)Citation

Sep 3, 2026993802977.1605(a)Citation

Aug 31, 2026512281375.1714-3(a)Citation

Aug 17, 2026512280775.1403-6(b)(3)Citation

Aug 13, 2026958496575.364(b)(2)Citation

Aug 13, 2026920687175.1002(a)Citation

OTHER HEALTH SAMPLES8 latest shown

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

Oct 8, 2026