MINE DETAILS
Viburnum #35 (Casteel Mine)
MSHA MINE ID2301800
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Viburnum #35 (Casteel Mine)37.65639, -91.12250Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
0reported short tons
Hours worked
359,449reported employee hours
Tons per hour
0.00production ÷ 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 | 0 | 60,627 | 0.00 | 106 | 1/1 mines reporting |
| 2025 Q2 | 0 | 60,286 | 0.00 | 108 | 1/1 mines reporting |
| 2025 Q3 | 0 | 63,276 | 0.00 | 105 | 1/1 mines reporting |
| 2025 Q4 | 0 | 54,930 | 0.00 | 103 | 1/1 mines reporting |
| 2026 Q1 | 0 | 59,031 | 0.00 | 108 | 1/1 mines reporting |
| 2026 Q2 | 0 | 61,299 | 0.00 | 106 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
26236 significant & substantial (S&S)
Accident records
110 records classified as fatality
Proposed penalties · USD
159,817.00245 of 262 violations with amounts
On-site inspection hours
1,425.7530 inspections · 30 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 | 36 | 3 | 24,673.00 | 0 | 0 | 4 | 220.5 |
| 2025-Q2 | 23 | 6 | 15,936.00 | 3 | 0 | 9 | 191.5 |
| 2025-Q3 | 40 | 6 | 50,188.00 | 1 | 0 | 2 | 328.8 |
| 2025-Q4 | 28 | 5 | 12,616.00 | 1 | 0 | 5 | 204.3 |
| 2026-Q1 | 32 | 4 | 11,663.00 | 2 | 0 | 3 | 130.8 |
| 2026-Q2 | 90 | 10 | 44,741.00 | 1 | 0 | 3 | 249.0 |
| 2026-Q3 | 13 | 2 | — | 3 | 0 | 4 | 101.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Spot Inspection · 5.0 on-site hours
57.12032
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
EMPLOYEE HAD PUT 2 TANKS OF SLURRY ON THE FORKS OF THE FORKLIFT, EE EXITED THE FORKILIFT AND WAS ATTEMPTING TO SECURE THE LOAD WITH A CLEVESS, WHILE DOING SO, EE'S HAND SLIPPED CAUSING EE TO CUT EE'S RING AND PINKY FINGER ON THE EARS OF THE SLURRY TANK.
57.11003
57.4101
47.44(b)
57.12006
57.20003(c)
57.11001
57.12032
57.12020 · S&S
57.14112(a)(1) · S&S
57.14100(b)
57.16001
Regular Safety and Health Inspection · 91.8 on-site hours
DISORDERS (REPEATED TRAUMA) · OCCUPATNAL ILLNESS NOT DEG 1-6
Accident narrative
CARPAL TUNNEL LEFT WRIST
Non-Injury Accident Investigation · 2.5 on-site hours
Description not reported
Compliance Follow-up Inspection · 1.8 on-site hours
MACHINERY · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
EMPLOYEE WAS CUTTING A PIECE OF METAL OFF OF A BASKET ABOVE EE; THE WELD BROKE ON THE OPPOSITE SIDE OF THE BASKET AND A PIECE OF METAL FELL ON EMPLOYEES RIGHT FOOT.
57.14100(b) · S&S · $697.00 proposed
57.20008(a) · $177.00 proposed
57.12032 · $177.00 proposed
57.12025 · $177.00 proposed
57.11002 · $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.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
Renco Group InccontrolsDoe Run Resources Corporation dba Doe Run CompanyoperatesViburnum #35 (Casteel Mine)
msha-controller-operator-history · controller/operator co-tenure derived on mine 2301800—
Fluor CorpcontrolsDoe Run CompanyoperatesViburnum #35 (Casteel Mine)
msha-controller-operator-history · controller/operator co-tenure derived on mine 2301800Other 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
137 historical accident/injury rows; 1 coded fatalities and 1,102 lost days across the published record.
ACCIDENT + INJURY RECORD36 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
1,245 violation rows across the full record; 250 carry an S&S flag and $486,833 appears in current assessed amounts.
ENFORCEMENT ACTIVITY516 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
582 personal; 84 area. 49 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
OCCUPATIONAL EXPOSURE666 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
61K employee hours and 106 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
87 contested-violation rows, 88 civil-penalty docket/decision rows, and 19 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE194 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
274 inspection events and 12K published inspection hours across the historical record.
OVERSIGHT COVERAGE63 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 7 silica records across the mine’s published history.
Personal silica samples · concentration / limit
Quarterly mean · published C/E ratio
— 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 |
|---|---|---|---|---|---|
| No silica records match these filters. Missing samples do not establish safe conditions. | |||||
Sources and interpretation
- Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
- Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
- Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
- Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
- Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.
Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗
EIA + TITLE 30
EIA production and cited regulations
EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 57.12032Inspection and cover plates.2 recent rows ↗30 CFR 57.11003Construction and maintenance of ladders.1 recent row ↗30 CFR 57.4101Warning signs.1 recent row ↗30 CFR 47.44Temporary, portable containers.1 recent row ↗30 CFR 57.12006Distribution boxes.1 recent row ↗30 CFR 57.20003Housekeeping.1 recent row ↗30 CFR 57.11001Safe access.1 recent row ↗30 CFR 57.12020Protection of persons at switchgear.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
504315557.12032Citation
504099057.11003Citation
504098957.4101Citation
504098847.44(b)Citation
504098757.12006Citation
504315157.20003(c)Citation
504315057.11001Citation
504314957.12032Citation
Coal dust, noise and other contaminants. Silica records above ↑
Unlisted Particulate, total, <1% QtzNipper, Supply Man
C/E: 00.00Concentration: 0000.22 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0001.14 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0000.56 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0000.42 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0008.06 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0002.54 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0001.60 · limit: 0000.00Source unit unspecified
Nuisance dust, total, <1% QtzMechanic
C/E: 00.06Concentration: 0000.59 · limit: 0010.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors137Jan 12, 2000—Sep 17, 2026mine-keyed
Addresses of Recordidentity · logistics1Oct 1, 2013—Oct 1, 2013mine-keyed
Assessed Violationscompliance · legal1,209Jan 25, 2000—Jun 22, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal88Jun 13, 2001—Aug 3, 2026mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal19Sep 20, 2000—Sep 16, 2026mine-keyed
Contested Violationscompliance · legal87Jun 30, 2009—Jun 22, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety2,125Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety457Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Jul 1, 1980—Apr 4, 1994mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance300Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance72Not published—Not publishedmine-keyed
Inspectionssafety · compliance274Jan 6, 2000—Sep 28, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety84Oct 31, 2012—Apr 28, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety582Aug 1, 2002—May 6, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal1,245Jan 25, 2000—Sep 24, 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.