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

MINE DETAILS

Hackberry

ActiveSurfaceConstruction Sand and Gravel
MSHA MINE ID0203122
LOCATIONMohave, AZ
PUBLIC RECORD552 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

10

1 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q26
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q12
  6. 2026 Q22
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

1

0 records classified as fatality

  1. 2025 Q11
  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

4,411.00

10 of 10 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2906
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1302
  6. 2026 Q23,203
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

18.25

4 inspections · 4 with hours

  1. 2025 Q1—
  2. 2025 Q25.25
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q16.25
  6. 2026 Q26.75
  7. 2026 Q3—
  8. 2026 Q4 *0.00
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—100—
2025-Q260906.000015.3
2025-Q300—000—
2025-Q400—000—
2026-Q120302.000016.3
2026-Q2213,203.000016.8
2026-Q300—000—
2026-Q4 *00—0010.0

Most cited CFR sections

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

Safety activity

  1. inspectionF0438EB

    Regular Safety and Health Inspection · 0.0 on-site hours

  2. inspectionF023EF7

    Regular Safety and Health Inspection · 6.8 on-site hours

  3. violation5103921

    56.12040 · S&S · $2,936.00 proposed

  4. violation5103920

    56.14112(a)(1) · $267.00 proposed

  5. violation5103052

    56.12028 · $151.00 proposed

  6. violation5103051

    56.14107(a) · $151.00 proposed

  7. inspectionF023EDF

    Regular Safety and Health Inspection · 6.3 on-site hours

  8. violation9680059

    56.4130(b) · $151.00 proposed

  9. violation9680058

    56.4104(b) · $151.00 proposed

  10. violation9680057

    56.12019 · $151.00 proposed

  11. violation9680056

    56.16006 · $151.00 proposed

  12. violation9680055

    56.4101 · $151.00 proposed

  13. violation9680054

    56.12004 · $151.00 proposed

  14. inspectionF010CC0

    Regular Safety and Health Inspection · 5.3 on-site hours

  15. accident220250860009

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee was walking out of the office and missed the bottom step on the stairs and had pain in their left calf. They heard a pop sound and had pain while walking. Employee is going to the doctor to get checked out.

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 HIERARCHYD L Campbell Sr → Campbell Redi-Mix Inc → Hackberry
HISTORY RECORDS13 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

D L Campbell SrcontrolsCampbell Redi-Mix IncoperatesHackberry

msha-controller-operator-history · controller/operator co-tenure derived on mine 0203122
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

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

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

Violations and penalties

117 violation rows across the full record; 16 carry an S&S flag and $24,338 appears in current assessed amounts.

ENFORCEMENT ACTIVITY22 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHcontext

Occupational health samples

7 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 EXPOSURE7 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

2K employee hours and 4 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

36 contested-violation rows, 36 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE75 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

50 inspection events and 630 published inspection hours across the historical record.

OVERSIGHT COVERAGE12 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
510392156.12040S&S
510392056.14112(a)(1)Citation
510305256.12028Citation
510305156.14107(a)Citation
968005956.4130(b)Citation
968005856.4104(b)Citation
968005756.12019Citation
968005656.16006Citation
OTHER HEALTH SAMPLES7 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, <.1mgFront-end Loader Operator
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, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgTruck Driver
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, <.1mgFront-end Loader Operator
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 · contractors1Mar 26, 2025—Mar 26, 2025mine-keyed
Addresses of Recordidentity · logistics1Nov 21, 2011—Nov 21, 2011mine-keyed
Assessed Violationscompliance · legal117Mar 19, 2007—Apr 28, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal36Sep 30, 2010—Apr 27, 2016mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal3May 6, 2013—Apr 9, 2014mine-keyed
Contested Violationscompliance · legal36Dec 9, 2008—Dec 16, 2014mine-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 · compliance1May 1, 2006—May 1, 2006mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance158Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance24Not published—Not publishedmine-keyed
Inspectionssafety · compliance50Aug 30, 2006—Oct 6, 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 · safety7Sep 24, 2009—Dec 4, 2024mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal117Mar 19, 2007—Apr 28, 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.