MINE DETAILS
Quincy Plant
MSHA MINE ID1102627
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Quincy Plant39.88861, -91.40611Open 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
602,628reported 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 | 91,946 | 0.00 | 156 | 1/1 mines reporting |
| 2025 Q2 | 0 | 83,516 | 0.00 | 158 | 1/1 mines reporting |
| 2025 Q3 | 0 | 81,381 | 0.00 | 160 | 1/1 mines reporting |
| 2025 Q4 | 0 | 115,522 | 0.00 | 160 | 1/1 mines reporting |
| 2026 Q1 | 0 | 104,462 | 0.00 | 160 | 1/1 mines reporting |
| 2026 Q2 | 0 | 125,801 | 0.00 | 160 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
200 significant & substantial (S&S)
Accident records
50 records classified as fatality
Proposed penalties · USD
6,489.0020 of 20 violations with amounts
On-site inspection hours
128.755 inspections · 5 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 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q2 | 5 | 0 | 2,441.00 | 0 | 0 | 2 | 34.8 |
| 2025-Q3 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2025-Q4 | 6 | 0 | 1,935.00 | 1 | 0 | 1 | 42.3 |
| 2026-Q1 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2026-Q2 | 9 | 0 | 2,113.00 | 1 | 0 | 1 | 41.8 |
| 2026-Q3 | 0 | 0 | — | 1 | 0 | 1 | 10.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee used sledgehammer to strike outside surface of storage tank to dislodge material that had become stuck inside a tank. Employee felt pain in right arm and was initially evaluated by teledoc service. Condition did not improve with first aid measures and was seen by a local physician on 9/22/2026. Incident became reportable on 9/22 due to work restrictions
Spot Inspection · 10.0 on-site hours
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee closed mill door after completing work. Once back in office for approximately 10 minutes, right shoulder pain developed, then later numbness and tingling. Injury became reportable when restrictions were placed on 06/02/2026
56.12028 · $151.00 proposed
56.12004 · $151.00 proposed
56.12018 · $165.00 proposed
56.12032 · $165.00 proposed
56.12032 · $165.00 proposed
56.14107(a) · $288.00 proposed
56.11003 · $193.00 proposed
56.20003(a) · $193.00 proposed
56.12004 · $642.00 proposed
Regular Safety and Health Inspection · 41.8 on-site hours
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was stepping off of chain conveyor belt after cleaning photo eyes, and twisted ankle. Conveyor was locked out and not moving at time of incident. Employee maintained three points of contact and did not fall to the ground.
56.12032 · $549.00 proposed
56.12004 · $165.00 proposed
56.12032 · $193.00 proposed
56.12004 · $642.00 proposed
56.11001 · $193.00 proposed
56.11001 · $193.00 proposed
Regular Safety and Health Inspection · 42.3 on-site hours
DISORDERS (REPEATED TRAUMA) · OCCUPATNAL ILLNESS NOT DEG 1-6
Accident narrative
Employee sought medical attention from EE's personal physician for shoulder pain. Compensable determination for WC was made on March 10, 2026--making it reportable at that date. Employee uses pole to poke feed through feeder and has performed this task over many years of employment
HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
THE IE REPORTED BACK STRAIN ON 8/18/25 AT THE START OF SHIFT. IE STATED THAT THE INCIDENT OCCURRED ON 8/13/25. THE IE WAS REMOVING A BROKEN PALLET FROM THE BAGGING SYSTEM WHEN THEY FELT A STRAIN IN BACK. IE WAS SEEN BY PHYSICIAN AND TAKEN OFF WORK.
Compliance Follow-up Inspection · 1.0 on-site hours
56.12004 · $818.00 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.
—
J M Huber CorpcontrolsHuber Carbonates, LLCoperatesQuincy Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 1102627—
J M Huber CorpcontrolsJ M Huber CorpoperatesQuincy Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 1102627Other 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
63 historical accident/injury rows; 0 coded fatalities and 1,372 lost days across the published record.
ACCIDENT + INJURY RECORD15 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
810 violation rows across the full record; 129 carry an S&S flag and $403,847 appears in current assessed amounts.
ENFORCEMENT ACTIVITY177 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
223 personal; 32 area. 42 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 EXPOSURE255 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
126K employee hours and 160 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
130 contested-violation rows, 130 civil-penalty docket/decision rows, and 63 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE323 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 CONTEXT5 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
125 inspection events and 7K published inspection hours across the historical record.
OVERSIGHT COVERAGE25 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 19 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 |
|---|---|---|---|---|---|
| 000000202603959600 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Forklift Operator | 0× published limitConcentration: 0000.22 · limit: 0000.00Source unit unspecified | Not reported | NO ACTIONInspection F03B90F |
| 000000202603959700 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Utility Man | 0.55× published limitConcentration: 0001.68 · limit: 0003.03Source unit unspecified | Not reported | NO ACTIONInspection F03B90F |
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 56.12028Testing grounding systems.1 recent row ↗30 CFR 56.12004Electrical conductors.3 recent rows ↗30 CFR 56.12018Identification of power switches.1 recent row ↗30 CFR 56.12032Inspection and cover plates.4 recent rows ↗30 CFR 56.14107Moving machine parts.1 recent row ↗30 CFR 56.11003Construction and maintenance of ladders.1 recent row ↗30 CFR 56.20003Housekeeping.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
501508256.12028Citation
501508156.12004Citation
501507856.12018Citation
501507656.12032Citation
501507556.12032Citation
501507456.14107(a)Citation
501507356.11003Citation
501507256.20003(a)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Nuisance dust, respirable, <1% QtzUtility Man
C/E: 00.02Concentration: 0000.16 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBall Mill Operator
C/E: 00.06Concentration: 0000.64 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzForklift Operator
C/E: 00.05Concentration: 0000.52 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.02Concentration: 0000.17 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.65Concentration: 0006.51 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzUtility Man
C/E: 00.09Concentration: 0000.90 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzPackaging Operations Worker
C/E: 00.08Concentration: 0000.84 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.08Concentration: 0000.81 · 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 · contractors63May 1, 2000—Sep 17, 2026mine-keyed
Addresses of Recordidentity · logistics1Nov 20, 2009—Nov 20, 2009mine-keyed
Assessed Violationscompliance · legal807May 1, 2001—Apr 22, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal130Jun 26, 2012—Apr 17, 2024mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal63Dec 3, 2014—Mar 20, 2025mine-keyed
Contested Violationscompliance · legal130Aug 2, 2011—Jun 13, 2023mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety670Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety146Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Mar 9, 1978—Dec 29, 2014mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance160Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance44Not published—Not publishedmine-keyed
Inspectionssafety · compliance125May 1, 2001—Sep 17, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety32Feb 6, 2018—Mar 1, 2022mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety223May 9, 2001—Sep 17, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal810May 1, 2001—Apr 22, 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.