# Woodlands Plant

- **MSHA mine ID:** 4103466
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Montgomery, TX
- **Operator:** Hanson Aggregates LLC
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 308
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Hanson Aggregates LLC (L17823) → Woodlands Plant (4103466)**

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

## Controller and operator valid-time history

- **Pioneer International Ltd → Pioneer South Central Inc:** 1987-05-01 through 2000-08-03; derived from co-tenure at mine 4103466; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Aggregates Central Inc:** 2000-08-04 through 2004-05-09; derived from co-tenure at mine 4103466; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Aggregates LLC:** 2004-05-10 through 2007-08-22; derived from co-tenure at mine 4103466; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Hanson Aggregates LLC:** 2007-08-23 through 2021-09-30; derived from co-tenure at mine 4103466; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Hanson Aggregates LLC:** 2021-10-01 through current/open; derived from co-tenure at mine 4103466; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 3 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 75 violation rows across the full record; 16 carry an S&S flag and $13,886 appears in current assessed amounts.
3. **HEALTH — 13 samples:** Occupational health samples 13 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 7K employee hours and 12 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 13 linked rows:** Contests, conferences and decisions 4 contested-violation rows, 4 civil-penalty docket/decision rows, and 5 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 0 since 2021:** Inspections 53 inspection events and 656 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 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 47.41 — Requirement for container labels.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.14107 — Moving machine parts.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025

## Source coverage

- **Accident, Injuries, and Illnesses:** 3 rows; 2002-04-30 through 2015-11-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-10-01 through 2020-10-01; source ID `msha-addresses`
- **Assessed Violations:** 74 rows; 2000-03-22 through 2020-04-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 4 rows; 2010-02-19 through 2018-06-08; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 5 rows; 2000-04-17 through 2016-10-13; source ID `msha-conferences`
- **Contested Violations:** 4 rows; 2009-01-08 through 2016-07-06; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 2 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1987-05-01 through 2004-05-10; source ID `msha-controller-operator-history`
- **Inspections:** 53 rows; 2000-03-22 through 2020-04-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 42 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:** 13 rows; 2006-04-26 through 2018-04-11; source ID `msha-personal-health-samples`
- **Violations:** 75 rows; 2000-03-22 through 2020-04-28; 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/woodlands-plant-4103466`
- JSON: `/api/v1/mines/woodlands-plant-4103466`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4103466/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4103466/relationships`
- MCP resource: `mine://4103466/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`