MINE DETAILS
Quincy WA Plant
MSHA MINE ID4500939
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Quincy WA Plant47.24139, -119.83778Open 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
111,066reported 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 | 19,810 | 0.00 | 36 | 1/1 mines reporting |
| 2025 Q2 | 0 | 19,720 | 0.00 | 43 | 1/1 mines reporting |
| 2025 Q3 | 0 | 19,210 | 0.00 | 36 | 1/1 mines reporting |
| 2025 Q4 | 0 | 17,861 | 0.00 | 38 | 1/1 mines reporting |
| 2026 Q1 | 0 | 16,987 | 0.00 | 35 | 1/1 mines reporting |
| 2026 Q2 | 0 | 17,478 | 0.00 | 40 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
297 significant & substantial (S&S)
Accident records
30 records classified as fatality
Proposed penalties · USD
21,420.0029 of 29 violations with amounts
On-site inspection hours
79.755 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 | 19 | 6 | 9,222.00 | 0 | 0 | 2 | 33.5 |
| 2025-Q2 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q3 | 4 | 0 | 1,690.00 | 0 | 0 | 1 | 12.0 |
| 2025-Q4 | 4 | 1 | 8,493.00 | 1 | 0 | 1 | 8.8 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q2 | 2 | 0 | 2,015.00 | 1 | 0 | 1 | 25.5 |
| 2026-Q3 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was stepping down from the passenger side of a semi-truck. When first foot touched the ground, they tripped and fell back into a concrete barrier, approximately 20" away from the truck.
56.12004 · $1,550.00 proposed
56.14100(b) · $465.00 proposed
Regular Safety and Health Inspection · 25.5 on-site hours
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Worker was welding in shop. They removed their welding hood after completing a weld and the slag popped and sent material into their eye. The material had to be removed by medical professionals and they were prescribed antibiotic and steroidal eye drops.
56.12016 · S&S · $6,037.00 proposed
56.4602 · $697.00 proposed
56.12018 · $1,550.00 proposed
47.41(a) · $209.00 proposed
Regular Safety and Health Inspection · 8.8 on-site hours
MACHINERY · PERM TOT OR PERM PRTL DISABLTY
Accident narrative
2 employees were working on a palletizer, but only one of them had it locked out. When the locked out employee was done, they asked the other employee if they were clear, and heard "yes". The other employee was still working, and when the machine was started, their right hand was caught, amputating the index finger, and degloving the middle finger.
56.14205 · $209.00 proposed
56.14107(a) · $313.00 proposed
56.20003(a) · $959.00 proposed
56.4201(a)(2) · $209.00 proposed
Regular Safety and Health Inspection · 12.0 on-site hours
Compliance Follow-up Inspection · 1.0 on-site hours
48.7(a) · S&S · $818.00 proposed
56.20003(a) · S&S · $959.00 proposed
56.9313 · $642.00 proposed
56.14132(a) · $288.00 proposed
56.14132(a) · $642.00 proposed
56.12018 · $151.00 proposed
56.20003(a) · $193.00 proposed
56.14101(a)(2) · $288.00 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.
—
Imerys S AcontrolsImerys Filtration Minerals, Inc.operatesQuincy WA Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 4500939—
Alleghany CorpcontrolsImerys Filtration Minerals, Inc.operatesQuincy WA Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 4500939—
Denis AndreuzzicontrolsWitco Corp-Inorganics Specialties DivoperatesQuincy WA Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 4500939Other 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
60 historical accident/injury rows; 0 coded fatalities and 1,543 lost days across the published record.
ACCIDENT + INJURY RECORD5 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
320 violation rows across the full record; 59 carry an S&S flag and $149,051 appears in current assessed amounts.
ENFORCEMENT ACTIVITY76 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHcontext
Occupational health samples
71 personal. 0 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 EXPOSURE71 samples
personal-health-samples04 / PRODUCTIONcontext
Quarterly production and employment
17K employee hours and 40 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
0 contested-violation rows, 0 civil-penalty docket/decision rows, and 20 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE20 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 CONTEXT1 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
107 inspection events and 2K published inspection hours across the historical record.
OVERSIGHT COVERAGE21 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 28 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 |
|---|---|---|---|---|---|
| 000000202602260500 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Forklift Operator | 0× published limitConcentration: 0000.41 · limit: 0000.00Source unit unspecified | Not reported | NO ACTIONInspection F03BD2E |
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 56.12004Electrical conductors.1 recent row ↗30 CFR 56.14100Safety defects; examination, correction and records.1 recent row ↗30 CFR 56.12016Work on electrically-powered equipment.1 recent row ↗30 CFR 56.4602Gauges and regulators.1 recent row ↗30 CFR 56.12018Identification of power switches.1 recent row ↗30 CFR 47.41Requirement for container labels.1 recent row ↗30 CFR 56.14205Machinery, equipment, and tools.1 recent row ↗30 CFR 56.14107Moving machine parts.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
516164056.12004Citation
516144956.14100(b)Citation
510119656.12016S&S
510119556.4602Citation
510119456.12018Citation
510119347.41(a)Citation
510101356.14205Citation
510101256.14107(a)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzBuilding Repair/Maint.
C/E: 00.00Concentration: 0000.15 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgKiln/Dryer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzMechanic
C/E: 00.00Concentration: 0000.63 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBagging Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzLaborer, Bullgang
C/E: 00.00Concentration: 0000.22 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
13 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors60Jan 24, 2000—Jul 15, 2026mine-keyed
Addresses of Recordidentity · logistics1May 17, 1991—May 17, 1991mine-keyed
Assessed Violationscompliance · legal318Aug 2, 2000—Jun 2, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal—No published rowsabsent / not applicable
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal20Aug 27, 2009—Mar 12, 2025mine-keyed
Contested Violationscompliance · legal—No published rowsabsent / not applicable
Contractor Employment and Production — Quarterlycontractors · production · safety158Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety40Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance3Jan 1, 1950—Sep 16, 1991mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance306Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance58Not published—Not publishedmine-keyed
Inspectionssafety · compliance107Aug 2, 2000—Jun 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 · safety71Aug 8, 2001—Jun 2, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal320Aug 2, 2000—Jun 2, 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.