MSHA DATABASEMSHA records · 14 contributing sources · snapshot Oct 13, 2026

MINE DETAILS

Specialty Granules (Ione) LLC

ActiveSurfaceConstruction Sand and Gravel
MSHA MINE ID0405533
LOCATIONAmador, CA
PUBLIC RECORD2,894 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

28

5 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q213
  3. 2025 Q30
  4. 2025 Q411
  5. 2026 Q10
  6. 2026 Q24
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

4

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q32
  4. 2025 Q41
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

23,515.00

28 of 28 violations with amounts

  1. 2025 Q1—
  2. 2025 Q27,381
  3. 2025 Q3—
  4. 2025 Q42,263
  5. 2026 Q1—
  6. 2026 Q213,871
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

99.00

5 inspections · 5 with hours

  1. 2025 Q1—
  2. 2025 Q231.75
  3. 2025 Q3—
  4. 2025 Q439.50
  5. 2026 Q1—
  6. 2026 Q227.75
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q21337,381.0010231.8
2025-Q300—200—
2025-Q41102,263.0010139.5
2026-Q100—000—
2026-Q24213,871.0000227.8
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF03EAE1

    Spot Inspection · 9.3 on-site hours

  2. violation5106630

    56.14112(b) · $288.00 proposed

  3. violation5106629

    56.12013(c) · $642.00 proposed

  4. violation5106628

    56.14112(b) · S&S · $3,184.00 proposed

  5. violation5106626

    56.20003(a) · S&S · $9,757.00 proposed

  6. inspectionF029BC9

    Regular Safety and Health Inspection · 18.5 on-site hours

  7. violation9680877

    56.12038 · $267.00 proposed

  8. violation9680876

    56.12032 · $267.00 proposed

  9. violation9680875

    56.20003(a) · $336.00 proposed

  10. violation9680874

    56.20003(a) · $336.00 proposed

  11. violation9680873

    56.11001 · $151.00 proposed

  12. violation9680872

    56.4201(a)(2) · $151.00 proposed

  13. violation9680871

    47.41(a)(1) · $151.00 proposed

  14. violation9680870

    56.20013 · $151.00 proposed

  15. violation9680869

    56.14107(a) · $151.00 proposed

  16. inspectionF029BAF

    Regular Safety and Health Inspection · 39.5 on-site hours

  17. violation9680868

    57.14130(c)(1) · $151.00 proposed

  18. violation9680867

    56.14112(b) · $151.00 proposed

  19. accident220253510001

    POWERED HAULAGE · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    While operating a stand-on skid steer in reverse, the employee made contact with a piece of metal causing bruising to their right thigh.

  20. accident220252590015

    MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee got foreign material in right eye.

  21. accident220252450022

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Miner misjudged the fact they were on the second step when they were on the second to the last step resulting in a misstep to the ground.

  22. inspectionF022F2C

    Verbal Hazard Complaint Inspections · 7.0 on-site hours

  23. violation5102210

    56.14107(a) · $193.00 proposed

  24. violation5102209

    56.20003(a) · $151.00 proposed

  25. violation5102208

    56.11002 · S&S · $2,133.00 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.

CURRENT HIERARCHYSpecialty Granules LLC → Specialty Granules (Ione) LLC → Specialty Granules (Ione) LLC
HISTORY RECORDS13 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Specialty Granules LLCcontrolsSpecialty Granules (Ione) LLCoperatesSpecialty Granules (Ione) LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0405533
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

57 historical accident/injury rows; 0 coded fatalities and 983 lost days across the published record.

ACCIDENT + INJURY RECORD16 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

334 violation rows across the full record; 74 carry an S&S flag and $83,375 appears in current assessed amounts.

ENFORCEMENT ACTIVITY79 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

40 personal. 10 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 EXPOSURE40 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

41K employee hours and 81 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

12 contested-violation rows, 12 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE24 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 CONTEXT17 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

93 inspection events and 2K published inspection hours across the historical record.

OVERSIGHT COVERAGE22 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
510663056.14112(b)Citation
510662956.12013(c)Citation
510662856.14112(b)S&S
510662656.20003(a)S&S
968087756.12038Citation
968087656.12032Citation
968087556.20003(a)Citation
968087456.20003(a)Citation
OTHER HEALTH SAMPLES6 latest shown

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

Respirable dust, <.1mgCont. Miner Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgVentilation Crew
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgVentilation Crew
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgUtility Man
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgOiler, Greaser
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

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

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors57Oct 24, 2002—Dec 3, 2025mine-keyed
Addresses of Recordidentity · logistics1Apr 29, 2002—Apr 29, 2002mine-keyed
Assessed Violationscompliance · legal332Aug 27, 2002—Apr 8, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal12May 20, 2010—Jul 17, 2019mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal—No published rowsabsent / not applicable
Contested Violationscompliance · legal12Jan 27, 2009—Jan 16, 2019mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,454Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety315Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance1Apr 29, 2002—Apr 29, 2002mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance192Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance50Not published—Not publishedmine-keyed
Inspectionssafety · compliance93Aug 27, 2002—Jun 24, 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 · safety40Aug 27, 2002—Jun 24, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal334Aug 27, 2002—Apr 8, 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.