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

MINE DETAILS

Sandy Flat Quarry

ActiveSurfaceCrushed, Broken Granite
MSHA MINE ID3800310
LOCATIONGreenville, SC
PUBLIC RECORD3,291 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

21

3 significant & substantial (S&S)

  1. 2025 Q112
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q16
  6. 2026 Q21
  7. 2026 Q31
  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

6,730.00

21 of 21 violations with amounts

  1. 2025 Q13,389
  2. 2025 Q2151
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q12,888
  6. 2026 Q2151
  7. 2026 Q3151
  8. 2026 Q4 *—

On-site inspection hours

128.50

8 inspections · 8 with hours

  1. 2025 Q145.50
  2. 2025 Q225.50
  3. 2025 Q35.25
  4. 2025 Q4—
  5. 2026 Q130.25
  6. 2026 Q222.00
  7. 2026 Q30.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q11223,389.0010245.5
2025-Q210151.0000125.5
2025-Q300—0025.3
2025-Q400—000—
2026-Q1612,888.0000130.3
2026-Q210151.0000122.0
2026-Q310151.000010.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF0444FA

    Other Technical Compliance Investigations · 0.0 on-site hours

  2. violation5193107

    50.20-1 · $151.00 proposed

  3. inspectionF02CAD1

    Regular Safety and Health Inspection · 22.0 on-site hours

  4. violation5065822

    56.20003(b) · $151.00 proposed

  5. violation5063280

    50.30(a) · $151.00 proposed

  6. violation5063279

    47.44(b) · $151.00 proposed

  7. inspectionF0280ED

    Regular Safety and Health Inspection · 30.3 on-site hours

  8. violation5065784

    56.20003(a) · $151.00 proposed

  9. violation5065783

    56.20003(c) · S&S · $2,133.00 proposed

  10. violation5065782

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

  11. violation5063278

    47.44(b) · $151.00 proposed

  12. inspectionF01534F

    Verbal Hazard Complaint Inspections · 3.0 on-site hours

  13. inspectionF01534D

    Verbal Hazard Complaint Inspections · 2.3 on-site hours

  14. violation9756793

    56.12028 · $151.00 proposed

  15. inspectionF01E6B9

    Regular Safety and Health Inspection · 25.5 on-site hours

  16. accident220251290002

    STEPPING OR KNEELING ON OBJECT · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    employee was greasing lines on the C 20 conveyor belt, as EE walked to the counterweight guarding EE stepped on something making EE twist and roll EE's knee

  17. inspection6976079

    Compliance Follow-up Inspection · 1.0 on-site hours

  18. violation9825338

    47.41(a) · $226.00 proposed

  19. violation9825337

    56.14100(b) · $226.00 proposed

  20. violation9825336

    56.12032 · $226.00 proposed

  21. violation9825335

    56.12032 · $226.00 proposed

  22. violation9825334

    56.20003(a) · S&S · $336.00 proposed

  23. violation9825333

    56.12004 · $226.00 proposed

  24. violation9825332

    56.14101(a)(2) · $151.00 proposed

  25. violation9825331

    56.16005 · $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 HIERARCHYHeidelberg Materials AG → Heidelberg Materials Southeast Agg., LLC → Sandy Flat Quarry
HISTORY RECORDS823 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Heidelberg Materials AGcontrolsHeidelberg Materials Southeast Agg., LLCoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
—

Hanson PLCcontrolsHeidelberg Materials Southeast Agg., LLCoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
—

Hanson PLCcontrolsHanson Aggregates East IncoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
—

Koppers Company InccontrolsDavidson Mineral Properties IncoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
—

CSR LtdcontrolsSouthern Aggregates CompanyoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
—

Rmc Group PLC et alcontrolsInterstate Materials CompanyoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
—

Clement Brothers CompanycontrolsInterstate Materials IncoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
—

E D Sloan JrcontrolsSloan Construction Company IncoperatesSandy Flat Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3800310
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

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

ACCIDENT + INJURY RECORD5 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

168 violation rows across the full record; 23 carry an S&S flag and $33,309 appears in current assessed amounts.

ENFORCEMENT ACTIVITY52 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

78 personal. 3 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 EXPOSURE78 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

16K employee hours and 32 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

9 contested-violation rows, 9 civil-penalty docket/decision rows, and 4 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE22 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 CONTEXT18 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

100 inspection events and 2K published inspection hours across the historical record.

OVERSIGHT COVERAGE21 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records10 coal · 1 personal · 0 area
Sample status0 not voided0 voided · 1 status not reported
Personal samples with C/E > 101 published ratios · not a citation count
2026 · Feb 17, 2026–Feb 17, 2026
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished action
000000202600613800Metal/nonmetal personalQuartz, respirable, >1% QtzUtility Man0.27× published limitConcentration: 0000.13 · limit: 0000.49Source unit unspecifiedNot reportedNO ACTIONInspection F0280ED
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
519310750.20-1Citation
506582256.20003(b)Citation
506328050.30(a)Citation
506327947.44(b)Citation
506578456.20003(a)Citation
506578356.20003(c)S&S
506578256.14132(b)(1)(i)Citation
506327847.44(b)Citation
OTHER HEALTH SAMPLES8 latest shown

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

Respirable dust, <.1mgLaborer, Bullgang
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgDrill Operator, Rotary
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, <.1mgLab Technician
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, <.1mgCrusher Oper/Worker
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgJackhammer 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

SOURCE COVERAGE

Reporting dates and coverage

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

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors20Sep 26, 2003—Mar 8, 2025mine-keyed
Addresses of Recordidentity · logistics1Jan 1, 2009—Jan 1, 2009mine-keyed
Assessed Violationscompliance · legal166Jul 12, 2000—Aug 13, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal9May 16, 2005—Jan 7, 2015mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal4Sep 25, 2004—Apr 16, 2014mine-keyed
Contested Violationscompliance · legal9Aug 17, 2004—Mar 26, 2014mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,895Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety433Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance8Jan 1, 1950—Sep 13, 2001mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance318Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance100Jul 12, 2000—Aug 13, 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 · safety78Nov 1, 2001—Feb 17, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal168Jul 12, 2000—Aug 13, 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.