MSHA DATABASEMSHA records · 15 contributing sources · snapshot Oct 13, 2026

MINE DETAILS

Quincy WA Mine

ActiveSurfaceDiatomaceous Earth (Diatomite)
MSHA MINE ID4503480
LOCATIONGrant, WA
PUBLIC RECORD1,253 linked rows

LOCATION

Mine location

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

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

1

0 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q21
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

1

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q41
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

151.00

1 of 1 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2—
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1—
  6. 2026 Q2151
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

26.00

4 inspections · 4 with hours

  1. 2025 Q13.75
  2. 2025 Q27.75
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q14.00
  6. 2026 Q210.50
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—0013.8
2025-Q200—0017.8
2025-Q300—000—
2025-Q400—100—
2026-Q100—0014.0
2026-Q210151.0000110.5
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

SectionViolationsS&S
30 CFR 62.120Action level.10

Safety activity

  1. violation5161639

    62.120 · $151.00 proposed

  2. inspectionF03BD2B

    Regular Safety and Health Inspection · 10.5 on-site hours

  3. inspectionF02DE9A

    Regular Safety and Health Inspection · 4.0 on-site hours

  4. accident220253170608

    OTHER · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Injured person was working on the hydraulic system of a D8 Bulldozer in the morning. Had to access the system below the floorboards of the equipment, and was working in an awkward position. Later in the day, they experienced pain in side/stomach and left work to seek medical care. At the hospital the employee was evaluated for back pain and prescribed hydrocodone.

  5. inspectionF021EED

    Regular Safety and Health Inspection · 7.8 on-site hours

  6. inspectionF017690

    Regular Safety and Health Inspection · 3.8 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.

OWNERSHIP

Operator and controller history

Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.

CURRENT HIERARCHYImerys S A → Imerys Filtration Minerals, Inc. → Quincy WA Mine
HISTORY RECORDS25 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Imerys S AcontrolsImerys Filtration Minerals, Inc.operatesQuincy WA Mine

msha-controller-operator-history · controller/operator co-tenure derived on mine 4503480
—

Alleghany CorpcontrolsImerys Filtration Minerals, Inc.operatesQuincy WA Mine

msha-controller-operator-history · controller/operator co-tenure derived on mine 4503480
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

33 historical accident/injury rows; 0 coded fatalities and 301 lost days across the published record.

ACCIDENT + INJURY RECORD3 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

83 violation rows across the full record; 23 carry an S&S flag and $30,601 appears in current assessed amounts.

ENFORCEMENT ACTIVITY8 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHcontext

Occupational health samples

41 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 EXPOSURE41 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

7K employee hours and 11 summed average employees across reported subunits in the latest published quarter.

2026-Q20 tons
mine-production-quarterlymine-production-yearly
05 / LEGALwatch

Contests, conferences and decisions

1 contested-violation rows, 1 civil-penalty docket/decision rows, and 12 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE14 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 CONTEXT1 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

78 inspection events and 1K published inspection hours across the historical record.

OVERSIGHT COVERAGE15 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records00 coal · 0 personal · 0 area
Sample status0 not voided0 voided · 0 status not reported
Personal samples with C/E > 1—0 published ratios · not a citation count
2026 · No reported dates in this selection
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished 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.

RECENT PUBLIC RECORDS

Recent violations and samples

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

VIOLATIONS12 latest shown
516163962.120Citation
920828856.14207Citation
968828248.25(a)Order
968828456.11001Citation
968828347.41(a)(1)Citation
968320556.20003(a)Citation
961663456.12004Citation
961617956.14107(a)Citation
OTHER HEALTH SAMPLES8 latest shown

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

Respirable dust, <.1mgBulldozer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgScraper Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBulldozer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzTruck Driver
C/E: 00.00Concentration: 0000.13 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBulldozer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzScraper Operator
C/E: 00.00Concentration: 0000.31 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBulldozer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

15 datasets contain linked records. Missing datasets are listed below.

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors33Oct 4, 2001—Oct 23, 2025mine-keyed
Addresses of Recordidentity · logistics1May 23, 2002—May 23, 2002mine-keyed
Assessed Violationscompliance · legal80Aug 7, 2001—May 20, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal1Jul 12, 2013—Jul 12, 2013mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal12Aug 27, 2009—Jul 20, 2017mine-keyed
Contested Violationscompliance · legal1Jul 21, 2011—Jul 21, 2011mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety591Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety81Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2May 1, 2001—May 1, 2001mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance197Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance51Not published—Not publishedmine-keyed
Inspectionssafety · compliance78Aug 7, 2001—May 18, 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 · safety41Nov 14, 2002—May 19, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal83Aug 7, 2001—May 20, 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.