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

MINE DETAILS

Sousa Ready Mix

ActiveSurfaceConstruction Sand and Gravel
MSHA MINE ID0401865
LOCATIONSiskiyou, CA
PUBLIC RECORD480 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

2 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q23
  3. 2025 Q32
  4. 2025 Q43
  5. 2026 Q10
  6. 2026 Q22
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

1

0 records classified as fatality

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

Proposed penalties · USD

2,506.00

10 of 10 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2453
  3. 2025 Q31,281
  4. 2025 Q4453
  5. 2026 Q1—
  6. 2026 Q2319
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

39.25

7 inspections · 7 with hours

  1. 2025 Q1—
  2. 2025 Q25.25
  3. 2025 Q37.50
  4. 2025 Q47.75
  5. 2026 Q1—
  6. 2026 Q218.75
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q230453.000025.3
2025-Q3221,281.001027.5
2025-Q430453.000017.8
2026-Q100—000—
2026-Q220319.0000218.8
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5102408

    62.120 · $151.00 proposed

  2. violation5102407

    46.7(a) · $168.00 proposed

  3. inspectionF042212

    Spot Inspection · 13.5 on-site hours

  4. inspectionF04220F

    Regular Safety and Health Inspection · 5.3 on-site hours

  5. violation5102337

    47.41(a) · $151.00 proposed

  6. violation5102336

    50.30(a) · $151.00 proposed

  7. violation5102335

    56.14108 · $151.00 proposed

  8. inspectionF02FD97

    Regular Safety and Health Inspection · 7.8 on-site hours

  9. inspectionF02491E

    Spot Inspection · 0.0 on-site hours

  10. violation5106023

    56.18002(a) · S&S · $398.00 proposed

  11. violation5106022

    56.14211(a) · S&S · $883.00 proposed

  12. inspectionF024916

    Non-Fatal Accident Investigation · 7.5 on-site hours

  13. accident220251900005

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Full investigation not complete. found victim on EE's back in front of a dump truck. It can be seen that a jack had slipped from under the axel and the bumper of the truck came down on the victim side. the victim was putting the left front tire on the truck. The tire had been removed because the wheel bearing had to be replaced

  14. inspectionF024903

    Compliance Follow-up Inspection · 0.0 on-site hours

  15. inspectionF0248F0

    Regular Safety and Health Inspection · 5.3 on-site hours

  16. violation5102024

    56.23002(a) · $151.00 proposed

  17. violation5102023

    50.30(a) · $151.00 proposed

  18. violation5102022

    50.30(a) · $151.00 proposed

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 HIERARCHYGreg Juell → Sousa Ready Mix LLC → Sousa Ready Mix
HISTORY RECORDS26 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Greg JuellcontrolsSousa Ready Mix LLCoperatesSousa Ready Mix

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401865
—

Phillip B SousacontrolsSousa Ready Mix, Inc.operatesSousa Ready Mix

msha-controller-operator-history · controller/operator co-tenure derived on mine 0401865
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 242 lost days across the published record.

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

Violations and penalties

68 violation rows across the full record; 11 carry an S&S flag and $8,687 appears in current assessed amounts.

ENFORCEMENT ACTIVITY21 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHcontext

Occupational health samples

8 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 EXPOSURE8 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

4K employee hours and 12 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 6 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE14 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

51 inspection events and 773 published inspection hours across the historical record.

OVERSIGHT COVERAGE22 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records20 coal · 2 personal · 0 area
Sample status0 not voided0 voided · 2 status not reported
Personal samples with C/E > 102 published ratios · not a citation count
2026 · May 19, 2026–May 19, 2026
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished action
000000202602134300Metal/nonmetal personalQuartz, respirable, >1% QtzCrusher Oper/Worker0× published limitConcentration: 0000.17 · limit: 0000.00Source unit unspecifiedNot reportedNO ACTIONInspection F042212
000000202602134400Metal/nonmetal personalQuartz, respirable, >1% QtzLaborer, Bullgang0× published limitConcentration: 0000.19 · limit: 0000.00Source unit unspecifiedNot reportedNO ACTIONInspection F042212
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
510240862.120Citation
510240746.7(a)Order
510233747.41(a)Citation
510233650.30(a)Citation
510233556.14108Citation
510602356.18002(a)S&S
510602256.14211(a)S&S
510202456.23002(a)Citation
OTHER HEALTH SAMPLES6 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
Unlisted Particulate, respirable, <1% QtzLaborer, Bullgang
C/E: 00.00Concentration: 0000.16 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgLaborer, Bullgang
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzCrusher Oper/Worker
C/E: 00.00Concentration: 0009.88 · 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% QtzCrusher Oper/Worker
C/E: 00.00Concentration: 0000.19 · 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 · contractors1Jul 8, 2025—Jul 8, 2025mine-keyed
Addresses of Recordidentity · logistics1Oct 2, 2018—Oct 2, 2018mine-keyed
Assessed Violationscompliance · legal68Mar 20, 2001—May 19, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal4Feb 13, 2019—Jan 6, 2025mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal6Nov 5, 2013—Sep 23, 2025mine-keyed
Contested Violationscompliance · legal4Aug 8, 2018—Feb 13, 2024mine-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 · compliance2Jan 1, 1950—May 1, 2010mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance212Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance54Not published—Not publishedmine-keyed
Inspectionssafety · compliance51Aug 22, 2000—May 18, 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 · safety8Jul 8, 2015—May 19, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal68Mar 20, 2001—May 19, 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.