# West Amarillo Sand & Gravel

- **MSHA mine ID:** 4104358
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Oldham, TX
- **Operator:** Rogers Group Inc.
- **Controller:** Rogers Group Inc
- **Public source rows linked:** 823
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Rogers Group Inc (M00452) → Rogers Group Inc. (L06514) → West Amarillo Sand & Gravel (4104358)**

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

## Controller and operator valid-time history

- **Michael D  Smith → LS SAND & GRAVEL LTD.:** 2002-04-11 through 2018-06-19; derived from co-tenure at mine 4104358; source `msha-controller-operator-history`.
- **Rogers Group Inc → Rogers Group Inc.:** 2018-06-20 through current/open; derived from co-tenure at mine 4104358; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 — 2 since 2021:** Accidents and injuries 23 historical accident/injury rows; 1 coded fatalities and 115 lost days across the published record.
2. **COMPLIANCE — 36 since 2021:** Violations and penalties 200 violation rows across the full record; 51 carry an S&S flag and $94,174 appears in current assessed amounts.
3. **HEALTH — 28 samples:** Occupational health samples 28 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 13K employee hours and 23 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 24 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 11 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 15 since 2021:** Inspections 77 inspection events and 2K 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 56.4104 — Combustible waste.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104
- **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 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.14132 — Horns and backup alarms.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5

## Source coverage

- **Accident, Injuries, and Illnesses:** 23 rows; 2003-04-04 through 2025-06-05; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2004-04-09 through 2004-04-09; source ID `msha-addresses`
- **Assessed Violations:** 196 rows; 2002-09-11 through 2026-04-07; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2010-02-25 through 2020-07-02; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2019-09-23 through 2021-06-11; source ID `msha-conferences`
- **Contested Violations:** 11 rows; 2009-02-19 through 2019-07-15; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 164 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 53 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 2002-04-11 through 2018-06-20; source ID `msha-controller-operator-history`
- **Inspections:** 77 rows; 2002-09-11 through 2026-04-07; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 4 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:** 28 rows; 2003-06-25 through 2026-04-08; source ID `msha-personal-health-samples`
- **Violations:** 200 rows; 2002-09-11 through 2026-04-07; 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/west-amarillo-sand-gravel-4104358`
- JSON: `/api/v1/mines/west-amarillo-sand-gravel-4104358`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4104358/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4104358/relationships`
- MCP resource: `mine://4104358/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`