MINE DETAILS
Guion Plant
MSHA MINE ID0300313
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Guion Plant35.92556, -91.94056Open 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
128,535reported 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 | 22,984 | 0.00 | 43 | 1/1 mines reporting |
| 2025 Q2 | 0 | 22,739 | 0.00 | 41 | 1/1 mines reporting |
| 2025 Q3 | 0 | 21,330 | 0.00 | 41 | 1/1 mines reporting |
| 2025 Q4 | 0 | 19,628 | 0.00 | 39 | 1/1 mines reporting |
| 2026 Q1 | 0 | 20,829 | 0.00 | 35 | 1/1 mines reporting |
| 2026 Q2 | 0 | 21,025 | 0.00 | 31 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
333 significant & substantial (S&S)
Accident records
40 records classified as fatality
Proposed penalties · USD
6,676.0033 of 33 violations with amounts
On-site inspection hours
283.7510 inspections · 10 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 | 2 | 0 | 302.00 | 1 | 0 | 1 | 24.0 |
| 2025-Q2 | 9 | 0 | 1,385.00 | 0 | 0 | 1 | 36.5 |
| 2025-Q3 | 8 | 1 | 1,455.00 | 1 | 0 | 2 | 47.5 |
| 2025-Q4 | 4 | 0 | 604.00 | 0 | 0 | 1 | 41.8 |
| 2026-Q1 | 2 | 1 | 743.00 | 1 | 0 | 2 | 46.3 |
| 2026-Q2 | 6 | 1 | 1,153.00 | 0 | 0 | 2 | 56.0 |
| 2026-Q3 | 2 | 0 | 1,034.00 | 1 | 0 | 1 | 31.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
57.12030 · $883.00 proposed
57.20003(a) · $151.00 proposed
Regular Safety and Health Inspection · 31.8 on-site hours
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee stepped from the front porch of the main office down one step to sidewalk, when foot contacted ground, EE rolled EE's right ankle.
Compliance Follow-up Inspection · 1.0 on-site hours
57.11001 · S&S · $398.00 proposed
57.14101(a)(3) · $151.00 proposed
57.20003(a) · $151.00 proposed
57.20003(a) · $151.00 proposed
Regular Safety and Health Inspection · 55.0 on-site hours
57.9100(a) · $151.00 proposed
57.3200 · $151.00 proposed
Non-Chargeable Accident Investigation · 2.3 on-site hours
Regular Safety and Health Inspection · 44.0 on-site hours
57.11001 · S&S · $592.00 proposed
57.14112(a)(1) · $151.00 proposed
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Operator walking, overstepped end of EE's catwalk, causing EE's toe to catch the ground, causing EE to fall forward to the ground, landing on right shoulder.
57.14101(a)(2) · $151.00 proposed
57.14132(a) · $151.00 proposed
57.12004 · $151.00 proposed
Regular Safety and Health Inspection · 41.8 on-site hours
57.14107(a) · $151.00 proposed
Spot Inspection · 3.0 on-site hours
48.9(a) · $151.00 proposed
57.12023 · $151.00 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.
—
Covia Holdings LLCcontrolsCovia Solutions LLCoperatesGuion Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 0300313—
Covia Holdings LLCcontrolsCovia Solutions Inc.operatesGuion Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 0300313—
S C R-Sibelco Nv et alcontrolsCovia Solutions Inc.operatesGuion Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 0300313—
Sam C CookecontrolsSilica Products Company IncoperatesGuion Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 0300313Other 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
51 historical accident/injury rows; 0 coded fatalities and 433 lost days across the published record.
ACCIDENT + INJURY RECORD8 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
571 violation rows across the full record; 115 carry an S&S flag and $173,800 appears in current assessed amounts.
ENFORCEMENT ACTIVITY73 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
611 personal; 7 area. 6 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 EXPOSURE618 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
21K employee hours and 31 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
6 contested-violation rows, 7 civil-penalty docket/decision rows, and 36 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE49 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 CONTEXT17 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
154 inspection events and 7K published inspection hours across the historical record.
OVERSIGHT COVERAGE29 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 40 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 57.12030Correction of dangerous conditions.1 recent row ↗30 CFR 57.20003Housekeeping.3 recent rows ↗30 CFR 57.11001Safe access.2 recent rows ↗30 CFR 57.14101Brakes.2 recent rows ↗30 CFR 57.9100Traffic control.1 recent row ↗30 CFR 57.3200Correction of hazardous conditions.1 recent row ↗30 CFR 57.14112Construction and maintenance of guards.1 recent row ↗30 CFR 57.14132Horns and backup alarms for surface equipment.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
517584757.12030Citation
517584657.20003(a)Citation
517015757.11001S&S
517620457.14101(a)(3)Citation
517015657.20003(a)Citation
517015557.20003(a)Citation
517620357.9100(a)Citation
517620257.3200Citation
Coal dust, noise and other contaminants. Silica records above ↑
TC from EC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
EC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC from EC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
EC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors51Mar 30, 2000—Jul 16, 2026mine-keyed
Addresses of Recordidentity · logistics1Jul 4, 1976—Jul 4, 1976mine-keyed
Assessed Violationscompliance · legal567Mar 14, 2000—Jul 28, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal7Jan 22, 2001—May 11, 2016mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal36Aug 28, 2000—Apr 18, 2016mine-keyed
Contested Violationscompliance · legal6Jun 22, 2010—Nov 10, 2014mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,724Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety366Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance4Jan 1, 1950—Aug 1, 2024mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance424Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance108Not published—Not publishedmine-keyed
Inspectionssafety · compliance154Mar 14, 2000—Jul 27, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety7Aug 9, 2023—Jun 3, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety611Dec 4, 2001—Jun 3, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal571Mar 14, 2000—Jul 28, 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.