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

MINE DETAILS

BYK USA LLC Plants & Pits

ActiveSurfaceCommon Clays NEC
MSHA MINE ID4100298
LOCATIONGonzales, TX
PUBLIC RECORD1,493 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

12

1 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q23
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q14
  6. 2026 Q20
  7. 2026 Q35
  8. 2026 Q4 *0

Accident records

3

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q41
  5. 2026 Q11
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

1,661.00

11 of 12 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2453
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1604
  6. 2026 Q2—
  7. 2026 Q3604
  8. 2026 Q4 *—

On-site inspection hours

69.50

4 inspections · 4 with hours

  1. 2025 Q1—
  2. 2025 Q225.50
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q126.75
  6. 2026 Q2—
  7. 2026 Q317.25
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q230453.0000125.5
2025-Q300—100—
2025-Q400—100—
2026-Q140604.0010126.8
2026-Q200—000—
2026-Q351604.0000217.3
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5178279

    56.14132(a) · $151.00 proposed

  2. violation5178278

    56.14132(a) · $151.00 proposed

  3. violation5178277

    56.4402 · $151.00 proposed

  4. violation5178276

    56.14132(b)(1)(i) · S&S · $151.00 proposed

  5. violation5178275

    56.12030

  6. inspectionF041242

    Regular Safety and Health Inspection · 17.3 on-site hours

  7. inspectionF043C8C

    Spot Inspection · 0.0 on-site hours

  8. accident220260970009

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee walking up ramp bent over to retrieve an object. A forklift operator backing down the ramp with a load did not see the employee, knocked EE to the side of the forklift and ran over EE's right foot. X-rays did not show any fractures. The ER released employee to work with no restrictions. A doctor visit on 4/2/26 prescribed light duty until swelling subsides.

  9. violation5007949

    50.30(a) · $151.00 proposed

  10. violation5007948

    56.4200(b)(2) · $151.00 proposed

  11. violation5002371

    56.12004 · $151.00 proposed

  12. violation5002370

    56.14100(b) · $151.00 proposed

  13. inspectionF02897B

    Regular Safety and Health Inspection · 26.8 on-site hours

  14. accident220253170566

    SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Plant Electrician was responding to a pump outage and was walking to the area when they took a step off step onto a concrete walkway and slipped. The employee fell backwards and fell against the corner of the fiberglass step, breaking one rib.

  15. accident220252400021

    HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Operator was standing on third rung of 6' step ladder while attempting to open a steam valve with a pipe wrench. They were using one hand on wrench and holding onto an adjacent valve with other hand when valve broke loose and they fell backwards off ladder onto concrete floor. Bruised heel of left foot and lower back. X-rays did not show any fractures.

  16. violation9797992

    56.12004 · $151.00 proposed

  17. violation9797991

    56.12032 · $151.00 proposed

  18. violation9797990

    56.12002 · $151.00 proposed

  19. inspectionF018775

    Regular Safety and Health Inspection · 25.5 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 HIERARCHYAltana Group (Germany) → BYK USA LLC → BYK USA LLC Plants & Pits
HISTORY RECORDS513 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Altana Group (Germany)controlsBYK USA LLCoperatesBYK USA LLC Plants & Pits

msha-controller-operator-history · controller/operator co-tenure derived on mine 4100298
—

Altana Group (Germany)controlsBYK Additives Inc.operatesBYK USA LLC Plants & Pits

msha-controller-operator-history · controller/operator co-tenure derived on mine 4100298
—

Rockwood Specialties Group InccontrolsBYK Additives Inc.operatesBYK USA LLC Plants & Pits

msha-controller-operator-history · controller/operator co-tenure derived on mine 4100298
—

Laporte PlccontrolsBYK Additives Inc.operatesBYK USA LLC Plants & Pits

msha-controller-operator-history · controller/operator co-tenure derived on mine 4100298
—

English China Clays PLCcontrolsSouthern Clay Products IncoperatesBYK USA LLC Plants & Pits

msha-controller-operator-history · controller/operator co-tenure derived on mine 4100298
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

72 historical accident/injury rows; 1 coded fatalities and 859 lost days across the published record.

ACCIDENT + INJURY RECORD10 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

251 violation rows across the full record; 29 carry an S&S flag and $80,432 appears in current assessed amounts.

ENFORCEMENT ACTIVITY47 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHcontext

Occupational health samples

12 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 EXPOSURE12 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

76K employee hours and 156 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

18 contested-violation rows, 20 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE51 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 CONTEXT5 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

89 inspection events and 2K 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
517827956.14132(a)Citation
517827856.14132(a)Citation
517827756.4402Citation
517827656.14132(b)(1)(i)S&S
517827556.12030Citation
500794950.30(a)Citation
500794856.4200(b)(2)Citation
500237156.12004Citation
OTHER HEALTH SAMPLES8 latest shown

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

Respirable dust, <.1mgBagging Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Nuisance dust, respirable, <1% QtzPelletizer Operator
C/E: 00.02Concentration: 0000.15 · limit: 0010.00Source unit unspecified
Respirable dust, <.1mgPump, Slurry Mix Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgPump, Slurry Mix Operator
C/E: 00.00Concentration: 0000.00 · 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% QtzBagging Operator
C/E: 00.00Concentration: 0002.72 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzBagging Operator
C/E: 00.00Concentration: 0002.40 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzBagging Operator
C/E: 00.00Concentration: 0000.13 · 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 · contractors72Aug 30, 2000—Mar 19, 2026mine-keyed
Addresses of Recordidentity · logistics1Apr 18, 1972—Apr 18, 1972mine-keyed
Assessed Violationscompliance · legal239May 22, 2001—Aug 12, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal20Feb 27, 2003—Apr 9, 2020mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal13Jun 19, 2001—May 11, 2017mine-keyed
Contested Violationscompliance · legal18May 14, 2003—Jul 25, 2019mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety303Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety70Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance5Jan 1, 1950—Feb 22, 2017mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance318Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance89May 9, 2000—Aug 10, 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 · safety12Jul 11, 2007—Apr 23, 2025mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal251Jul 6, 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.