MSHA DATABASEMSHA records · 14 contributing sources · snapshot Oct 18, 2026

MINE DETAILS

HORSESHOE BEND SAND SUPPLY

ActiveFacilityCrushed, Broken Stone NEC
MSHA MINE ID4103670
LOCATIONMclennan, TX
PUBLIC RECORD1,247 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 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

9

0 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q12
  6. 2026 Q20
  7. 2026 Q32
  8. 2026 Q4 *4

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

453.00

3 of 9 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2151
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1302
  6. 2026 Q2—
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

50.00

4 inspections · 4 with hours

  1. 2025 Q1—
  2. 2025 Q25.00
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q18.00
  6. 2026 Q2—
  7. 2026 Q314.50
  8. 2026 Q4 *22.50
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q210151.000015.0
2025-Q300—000—
2025-Q400—000—
2026-Q120302.000018.0
2026-Q200—000—
2026-Q320—00114.5
2026-Q4 *40—00122.5

Most cited CFR sections

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

Safety activity

    No matching records in this period.

    Safety sources and definitions

    MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

    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 HIERARCHYATM Holdings LLC → Armadillo Materials LLC → HORSESHOE BEND SAND SUPPLY
    HISTORY RECORDS512 relationships
    INTERVAL CHECK1 REVIEWcontroller/operator overlap
    —

    Tex-Mix Partners LtdcontrolsArmadillo Materials LLCoperatesHORSESHOE BEND SAND SUPPLY

    msha-controller-operator-history · controller/operator co-tenure derived on mine 4103670
    —

    ATM Holdings LLCcontrolsArmadillo Materials LLCoperatesHORSESHOE BEND SAND SUPPLY

    msha-controller-operator-history · controller/operator co-tenure derived on mine 4103670
    —

    Jason D Platt et alcontrolsH&B ContractorsoperatesHORSESHOE BEND SAND SUPPLY

    msha-controller-operator-history · controller/operator co-tenure derived on mine 4103670
    —

    Allen C Kasparian et alcontrolsH&B ContractorsoperatesHORSESHOE BEND SAND SUPPLY

    msha-controller-operator-history · controller/operator co-tenure derived on mine 4103670
    —

    Bill GlasscontrolsH & B Contractors IncoperatesHORSESHOE BEND SAND SUPPLY

    msha-controller-operator-history · controller/operator co-tenure derived on mine 4103670
    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

    90 violation rows across the full record; 21 carry an S&S flag and $13,329 appears in current assessed amounts.

    ENFORCEMENT ACTIVITY34 since 2021
    inspectionsviolationsassessed-violationsorders-107a
    03 / HEALTHcontext

    Occupational health samples

    18 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 EXPOSURE18 samples
    personal-health-samples
    04 / PRODUCTIONcontext

    Quarterly production and employment

    12K employee hours and 18 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 0 conference records linked by issuance number.

    POST-ISSUANCE LIFECYCLE4 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 CONTEXT2 linked entities
    contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
    07 / INSPECTIONScontext

    Inspections

    61 inspection events and 956 published inspection hours across the historical record.

    OVERSIGHT COVERAGE16 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 · Oct 7, 2026–Oct 7, 2026
    Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished action
    000000202604176100Metal/nonmetal personalQuartz, respirable, >1% QtzCrusher Oper/Worker0× published limitConcentration: 0000.22 · limit: 0000.00Source unit unspecifiedNot reportedNO ACTIONInspection F052F04
    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
    525008456.4101Citation
    525008347.41(a)Citation
    525008256.14100(d)Citation
    525008156.15001Citation
    508836756.14100(b)Citation
    508836656.11001Citation
    500358856.14100(c)Citation
    500358747.41(b)Citation
    OTHER HEALTH SAMPLES8 latest shown

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

    Respirable dust, <.1mgCleanup Man
    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
    Nuisance dust, respirable, <1% QtzScraper Operator
    C/E: 00.03Concentration: 0000.29 · limit: 0010.00Source 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
    Unlisted Particulate, respirable, <1% QtzWasher Operator
    C/E: 00.00Concentration: 0000.18 · limit: 0000.00Source unit unspecified
    Unlisted Particulate, respirable, <1% QtzRotary Bucket Ex. Operator
    C/E: 00.00Concentration: 0000.15 · 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 · contractors1Jun 2, 2021—Jun 2, 2021mine-keyed
    Addresses of Recordidentity · logistics1Apr 24, 2013—Apr 24, 2013mine-keyed
    Assessed Violationscompliance · legal84Mar 8, 2000—Jan 6, 2026mine-keyed
    Civil Penalty Dockets and Decisionscompliance · legal2Mar 5, 2008—Mar 5, 2008mine-keyed
    Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
    Conferencescompliance · legal—No published rowsabsent / not applicable
    Contested Violationscompliance · legal2Oct 19, 2006—Oct 19, 2006mine-keyed
    Contractor Employment and Production — Quarterlycontractors · production · safety548Not published—Not publishedentity-linked
    Contractor Employment and Production — Yearlycontractors · production · safety139Not published—Not publishedentity-linked
    Controller and Operator Historyidentity · compliance5Apr 1, 1991—Jan 1, 2024mine-keyed
    Mine Employment and Production — Quarterlyproduction · safety · compliance240Not published—Not publishedmine-keyed
    Mine Employment and Production — Yearlyproduction · safety · compliance55Not published—Not publishedmine-keyed
    Inspectionssafety · compliance61Mar 8, 2000—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 · safety18Apr 30, 2009—Oct 7, 2026mine-keyed
    Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
    Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
    Violationscompliance · safety · legal90Mar 8, 2000—Oct 7, 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.