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

MINE DETAILS

Macon Plant

ActiveFacilityKaolin and Ball Clay
MSHA MINE ID0900142
LOCATIONTwiggs, GA
PUBLIC RECORD4,104 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

7

0 significant & substantial (S&S)

  1. 2025 Q12
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q20
  7. 2026 Q34
  8. 2026 Q4 *0

Accident records

2

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q21
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

1,315.00

7 of 7 violations with amounts

  1. 2025 Q1386
  2. 2025 Q2—
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1151
  6. 2026 Q2—
  7. 2026 Q3778
  8. 2026 Q4 *—

On-site inspection hours

91.75

5 inspections · 5 with hours

  1. 2025 Q117.75
  2. 2025 Q2—
  3. 2025 Q326.50
  4. 2025 Q4—
  5. 2026 Q124.50
  6. 2026 Q2—
  7. 2026 Q323.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q120386.0000217.8
2025-Q200—000—
2025-Q300—10126.5
2025-Q400—000—
2026-Q110151.0000124.5
2026-Q200—100—
2026-Q340778.0000123.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5069900

    56.14107(a) · $151.00 proposed

  2. violation5069899

    56.12032 · $209.00 proposed

  3. violation5069898

    56.12025 · $209.00 proposed

  4. violation5069897

    56.12004 · $209.00 proposed

  5. inspectionF03A8AD

    Regular Safety and Health Inspection · 23.0 on-site hours

  6. accident220261460014

    MACHINERY · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Miner was attaching lifting apparatus to pipe on the ground to excavator when pipe shifted and caught miner's finger tip.

  7. violation9758192

    56.12004 · $151.00 proposed

  8. inspectionF027766

    Regular Safety and Health Inspection · 24.5 on-site hours

  9. inspectionF03A86C

    Regular Safety and Health Inspection · 26.5 on-site hours

  10. accident220252100012

    MACHINERY · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Teammate attempting to cut board on a benchtop in the maintenance shop. Using angle grinder, teammate worked on a section which was not properly secured. Unsecured section shifted caused mechanic to lose control of board. Holding the grinder in EE's right hand, reached out left hand accidentally made contact with the rotating wheel, resulting in lacerations to two fingers.

  11. inspectionF017836

    Impoundment Spot Inspection · 0.8 on-site hours

  12. violation9754128

    56.12004 · $193.00 proposed

  13. violation9754127

    56.12032 · $193.00 proposed

  14. inspectionF017834

    Regular Safety and Health Inspection · 17.0 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 HIERARCHYIMin Partners → KaMin LLC → Macon Plant
HISTORY RECORDS26 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

IMin PartnerscontrolsKaMin LLCoperatesMacon Plant

msha-controller-operator-history · controller/operator co-tenure derived on mine 0900142
—

J M Huber CorpcontrolsJ M Huber CorpoperatesMacon Plant

msha-controller-operator-history · controller/operator co-tenure derived on mine 0900142
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

46 historical accident/injury rows; 0 coded fatalities and 838 lost days across the published record.

ACCIDENT + INJURY RECORD8 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

293 violation rows across the full record; 45 carry an S&S flag and $64,250 appears in current assessed amounts.

ENFORCEMENT ACTIVITY29 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHcontext

Occupational health samples

46 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 EXPOSURE46 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

83K employee hours and 160 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

2 contested-violation rows, 2 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE5 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 CONTEXT22 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

79 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.

EIA MINE CONTEXTNo matched record
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.

RECENT PUBLIC RECORDS

Recent violations and samples

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

VIOLATIONS12 latest shown
506990056.14107(a)Citation
506989956.12032Citation
506989856.12025Citation
506989756.12004Citation
975819256.12004Citation
975412856.12004Citation
975412756.12032Citation
970890056.12019Citation
OTHER HEALTH SAMPLES8 latest shown

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

Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.16Concentration: 0001.59 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.21Concentration: 0002.13 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.35Concentration: 0003.49 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.19Concentration: 0001.89 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.50Concentration: 0005.00 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.21Concentration: 0002.07 · limit: 0010.00Source unit unspecified
Nuisance dust, respirable, <1% QtzBagging Operator
C/E: 00.30Concentration: 0003.03 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzBagging Operator
C/E: 00.43Concentration: 0004.32 · limit: 0010.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

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

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors46Feb 25, 2000—May 20, 2026mine-keyed
Addresses of Recordidentity · logistics1Sep 26, 1973—Sep 26, 1973mine-keyed
Assessed Violationscompliance · legal293Feb 15, 2000—Aug 27, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal2Jun 28, 2016—Mar 26, 2018mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal1Sep 13, 2013—Sep 13, 2013mine-keyed
Contested Violationscompliance · legal2Aug 25, 2015—Sep 20, 2017mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety2,554Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety518Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Jan 1, 1950—Apr 22, 2008mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance212Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance54Not published—Not publishedmine-keyed
Inspectionssafety · compliance79Feb 15, 2000—Aug 26, 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 · safety46Apr 22, 2004—Sep 3, 2025mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal293Feb 15, 2000—Aug 27, 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.