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

MINE DETAILS

Protech Minerals, LLC

ActiveFacilityClay, Ceramic, Refractory Mnls.
MSHA MINE ID0401104
LOCATIONSan Bernardino, CA
PUBLIC RECORD1,102 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

13

6 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q15
  6. 2026 Q20
  7. 2026 Q38
  8. 2026 Q4 *0

Accident records

0

0 records classified as fatality

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

Proposed penalties · USD

1,991.00

13 of 13 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2—
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1769
  6. 2026 Q2—
  7. 2026 Q31,222
  8. 2026 Q4 *—

On-site inspection hours

34.00

4 inspections · 4 with hours

  1. 2025 Q15.00
  2. 2025 Q2—
  3. 2025 Q35.00
  4. 2025 Q4—
  5. 2026 Q16.50
  6. 2026 Q2—
  7. 2026 Q317.50
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—0015.0
2025-Q200—000—
2025-Q300—0015.0
2025-Q400—000—
2026-Q151769.000016.5
2026-Q200—000—
2026-Q3851,222.0000117.5
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5166982

    56.12013 · S&S · $151.00 proposed

  2. violation5166981

    56.14130(g) · S&S · $165.00 proposed

  3. violation5166980

    56.12018 · $151.00 proposed

  4. violation5166979

    56.12068 · $151.00 proposed

  5. violation5166978

    56.20003(a) · S&S · $151.00 proposed

  6. violation5166977

    56.12032 · S&S · $151.00 proposed

  7. violation5166976

    56.4201(a)(2) · $151.00 proposed

  8. violation5166975

    56.14105 · S&S · $151.00 proposed

  9. inspectionF02B380

    Regular Safety and Health Inspection · 17.5 on-site hours

  10. violation5165163

    56.16005 · $151.00 proposed

  11. violation5165162

    56.12004 · $151.00 proposed

  12. violation5165161

    56.12018 · $151.00 proposed

  13. violation5165160

    56.12002 · S&S · $165.00 proposed

  14. violation5165159

    56.12018 · $151.00 proposed

  15. inspectionF013166

    Regular Safety and Health Inspection · 6.5 on-site hours

  16. inspectionF014E61

    Regular Safety and Health Inspection · 5.0 on-site hours

  17. inspectionF008823

    Regular Safety and Health Inspection · 5.0 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 HIERARCHYPressed Down, Inc; Terry Suzuki → PROTECH MINERALS, LLC → Protech Minerals, LLC
HISTORY RECORDS719 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Pressed Down, InccontrolsPROTECH MINERALS, LLCoperatesProtech Minerals, LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401104
—

Terry Suzuki et alcontrolsPROTECH MINERALS, LLCoperatesProtech Minerals, LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401104
—

Chul L ChoecontrolsProtech Minerals IncoperatesProtech Minerals, LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401104
—

Morita GeroldcontrolsB F M Associates IncoperatesProtech Minerals, LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401104
—

Vincent FeneloncontrolsB F M Associates IncoperatesProtech Minerals, LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401104
—

Patrick NoonancontrolsConservation FundoperatesProtech Minerals, LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401104
—

Minerals Technologies InccontrolsPfizer IncoperatesProtech Minerals, LLC

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401104
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 / SAFETYneutral

Accidents and injuries

9 historical accident/injury rows; 0 coded fatalities and 985 lost days across the published record.

ACCIDENT + INJURY RECORD0 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

268 violation rows across the full record; 81 carry an S&S flag and $87,923 appears in current assessed amounts.

ENFORCEMENT ACTIVITY32 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

21 personal. 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 EXPOSURE21 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

440 employee hours and 13 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

39 contested-violation rows, 39 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE85 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 CONTEXT0 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

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

OVERSIGHT COVERAGE13 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
516698256.12013S&S
516698156.14130(g)S&S
516698056.12018Citation
516697956.12068Citation
516697856.20003(a)S&S
516697756.12032S&S
516697656.4201(a)(2)Citation
516697556.14105S&S
OTHER HEALTH SAMPLES5 latest shown

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

Unlisted Particulate, respirable, <1% QtzCrusher Oper/Worker
C/E: 00.00Concentration: 0005.77 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzCrusher Oper/Worker
C/E: 00.00Concentration: 0004.48 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzBagging Operator
C/E: 00.00Concentration: 0004.86 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgSupervisor, Co. Official
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgMechanic
C/E: 00.00Concentration: 0000.00 · 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 · contractors9May 23, 2000—May 14, 2008mine-keyed
Addresses of Recordidentity · logistics1Oct 31, 2001—Oct 31, 2001mine-keyed
Assessed Violationscompliance · legal267Jan 7, 2000—Aug 12, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal39Jan 29, 2007—Jul 2, 2011mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal7Nov 4, 2008—Nov 4, 2008mine-keyed
Contested Violationscompliance · legal39Jul 3, 2006—Aug 3, 2010mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety—No published rowsabsent / not applicable
Contractor Employment and Production — Yearlycontractors · production · safety—No published rowsabsent / not applicable
Controller and Operator Historyidentity · compliance7Jan 1, 1950—Jul 25, 2016mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance284Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance75Not published—Not publishedmine-keyed
Inspectionssafety · compliance84Jan 7, 2000—Aug 11, 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 · safety21Nov 14, 2001—Aug 7, 2024mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal268Jan 7, 2000—Aug 12, 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.