# Webberville S&G

- **MSHA mine ID:** 4104363
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Travis, TX
- **Operator:** Martin Marietta Materials Southwest, LLC
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 2,099
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Materials Southwest, LLC (0084984) → Webberville S&G (4104363)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Michael  Weynand et al → Travis Aggregates GP LLC:** 2002-04-01 through 2005-07-28; derived from co-tenure at mine 4104363; source `msha-controller-operator-history`.
- **Steve  Mosley et al → Travis Aggregates GP LLC:** 2002-04-01 through 2005-07-28; derived from co-tenure at mine 4104363; source `msha-controller-operator-history`.
- **T A Acquisitions LP → TA Acquisitions LP:** 2005-07-29 through 2008-07-13; derived from co-tenure at mine 4104363; source `msha-controller-operator-history`.
- **Mike  Weynand et al → TA Acquisitions LP:** 2005-07-29 through 2008-07-13; derived from co-tenure at mine 4104363; source `msha-controller-operator-history`.
- **Texas Industries Inc → TXI Operations, LP:** 2008-07-14 through 2014-07-01; derived from co-tenure at mine 4104363; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → TXI Operations, LP:** 2014-07-02 through 2023-01-22; derived from co-tenure at mine 4104363; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials Southwest, LLC:** 2023-01-23 through current/open; derived from co-tenure at mine 4104363; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 16
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 18 historical accident/injury rows; 0 coded fatalities and 331 lost days across the published record.
2. **COMPLIANCE — 21 since 2021:** Violations and penalties 155 violation rows across the full record; 31 carry an S&S flag and $82,561 appears in current assessed amounts.
3. **HEALTH — 20 samples:** Occupational health samples 20 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.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 14K employee hours and 25 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 21 linked rows:** Contests, conferences and decisions 10 contested-violation rows, 10 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 8 linked entities:** 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.
7. **INSPECTIONS — 13 since 2021:** Inspections 68 inspection events and 1K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 50.30-1 — General instructions for completing MSHA Form 7000-2.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30-1
- **30 CFR 50.40 — Maintenance of records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-E/section-50.40
- **30 CFR 45.4 — Independent contractor register.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-45/section-45.4
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12020 — Protection of persons at switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12020
- **30 CFR 46.7 — New task training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005

## Source coverage

- **Accident, Injuries, and Illnesses:** 18 rows; 2004-01-26 through 2020-10-09; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2002-04-01 through 2002-04-01; source ID `msha-addresses`
- **Assessed Violations:** 152 rows; 2002-09-24 through 2026-06-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 10 rows; 2011-07-07 through 2016-06-02; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2005-09-21 through 2005-09-21; source ID `msha-conferences`
- **Contested Violations:** 10 rows; 2009-11-03 through 2015-04-20; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,124 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 288 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 2002-04-01 through 2023-01-23; source ID `msha-controller-operator-history`
- **Inspections:** 68 rows; 2002-09-24 through 2026-06-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 194 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 50 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 20 rows; 2004-05-05 through 2025-10-22; source ID `msha-personal-health-samples`
- **Violations:** 155 rows; 2002-09-24 through 2026-06-09; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/webberville-s-g-4104363`
- JSON: `/api/v1/mines/webberville-s-g-4104363`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4104363/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4104363/relationships`
- MCP resource: `mine://4104363/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`