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

MINE DETAILS

White Hills

IntermittentSurfaceCrushed, Broken Granite
MSHA MINE ID0202677
LOCATIONMohave, AZ
PUBLIC RECORD1,474 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

17

4 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q24
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q16
  6. 2026 Q27
  7. 2026 Q30
  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

8,271.00

17 of 17 violations with amounts

  1. 2025 Q1—
  2. 2025 Q25,867
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1923
  6. 2026 Q21,481
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

21.75

5 inspections · 5 with hours

  1. 2025 Q1—
  2. 2025 Q25.50
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q19.25
  6. 2026 Q27.00
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q2425,867.000025.5
2025-Q300—000—
2025-Q400—000—
2026-Q160923.000029.3
2026-Q2721,481.000017.0
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF023F00

    Regular Safety and Health Inspection · 7.0 on-site hours

  2. violation5103948

    46.7(a) · S&S · $517.00 proposed

  3. violation5103947

    56.14132(a) · $151.00 proposed

  4. violation5103946

    56.4201 · $151.00 proposed

  5. violation5103945

    56.14107 · S&S · $209.00 proposed

  6. violation5103944

    56.14112(b) · $151.00 proposed

  7. violation5103943

    56.14112(b) · $151.00 proposed

  8. violation5103942

    56.14112(b) · $151.00 proposed

  9. inspectionF01709B

    Regular Safety and Health Inspection · 7.8 on-site hours

  10. inspectionF01709A

    Verbal Hazard Complaint Inspections · 1.5 on-site hours

  11. violation5103242

    56.20011 · $151.00 proposed

  12. violation5103241

    56.12028 · $151.00 proposed

  13. violation5103240

    56.9301 · $151.00 proposed

  14. violation5103239

    56.9300(a) · $151.00 proposed

  15. violation5103238

    56.1000 · $151.00 proposed

  16. violation5103237

    46.6(a) · $168.00 proposed

  17. inspectionF0140FD

    Compliance Follow-up Inspection · 1.0 on-site hours

  18. violation9680053

    56.14132(a) · S&S · $3,736.00 proposed

  19. violation9680052

    56.14130(e) · $226.00 proposed

  20. violation9680051

    56.14112(a)(1) · S&S · $1,679.00 proposed

  21. violation9680050

    56.14112(b) · $226.00 proposed

  22. inspectionF010CBF

    Regular Safety and Health Inspection · 4.5 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 HIERARCHYThe Shepherd Family Living Trust; The Lin Irrevocable Trust → Rock Pros USA → White Hills
HISTORY RECORDS510 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

The Lin Irrevocable Trust et alcontrolsRock Pros USAoperatesWhite Hills

msha-controller-operator-history · controller/operator co-tenure derived on mine 0202677
—

The Shepherd Family Living Trust et alcontrolsRock Pros USAoperatesWhite Hills

msha-controller-operator-history · controller/operator co-tenure derived on mine 0202677
—

The Lin Irrevocable Trust et alcontrolsKalamazoo Materials IncoperatesWhite Hills

msha-controller-operator-history · controller/operator co-tenure derived on mine 0202677
—

The Shepherd Family Living Trust et alcontrolsKalamazoo Materials IncoperatesWhite Hills

msha-controller-operator-history · controller/operator co-tenure derived on mine 0202677
—

Paul E D'AlessiocontrolsKalamazoo Materials IncoperatesWhite Hills

msha-controller-operator-history · controller/operator co-tenure derived on mine 0202677
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

3 historical accident/injury rows; 0 coded fatalities and 348 lost days across the published record.

ACCIDENT + INJURY RECORD1 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

232 violation rows across the full record; 81 carry an S&S flag and $89,969 appears in current assessed amounts.

ENFORCEMENT ACTIVITY75 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

21 personal. 2 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

349 employee hours and 2 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

4 contested-violation rows, 4 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE8 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 CONTEXT4 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

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

OVERSIGHT COVERAGE21 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
510394846.7(a)S&S
510394756.14132(a)Citation
510394656.4201Citation
510394556.14107S&S
510394456.14112(b)Citation
510394356.14112(b)Citation
510394256.14112(b)Citation
510324256.20011Citation
OTHER HEALTH SAMPLES5 latest shown

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

Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgDry Screen Plant Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgCrusher Oper/Worker
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
Unlisted Particulate, respirable, <1% QtzLaborer, Bullgang
C/E: 00.00Concentration: 0000.21 · 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 · contractors3Apr 2, 2007—Nov 30, 2022mine-keyed
Addresses of Recordidentity · logistics1May 27, 2026—May 27, 2026mine-keyed
Assessed Violationscompliance · legal231May 30, 2000—Jun 17, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal4May 23, 2013—Apr 24, 2025mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal—No published rowsabsent / not applicable
Contested Violationscompliance · legal4Oct 25, 2012—Oct 22, 2024mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety541Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety141Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance5Nov 1, 1996—Jun 16, 2025mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance161Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance36Not published—Not publishedmine-keyed
Inspectionssafety · compliance93May 30, 2000—Jun 17, 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 · safety21Sep 25, 2002—May 21, 2024mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal232May 30, 2000—Jun 17, 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.