# North Amarillo

- **MSHA mine ID:** 4103599
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Potter, TX
- **Operator:** Vulcan Construction Materials, LLC
- **Controller:** Vulcan Materials Company
- **Public source rows linked:** 1,193
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Vulcan Materials Company (0071891) → Vulcan Construction Materials, LLC (L16168) → North Amarillo (4103599)**

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

## Controller and operator valid-time history

- **Roy P  Eastland III → Texas Sand & Gravel Co Inc:** 1990-03-01 through 2016-05-31; derived from co-tenure at mine 4103599; source `msha-controller-operator-history`.
- **Craig  Snell → Texas Sand & Gravel Co Inc:** 2016-06-01 through 2018-03-01; derived from co-tenure at mine 4103599; source `msha-controller-operator-history`.
- **US Concrete → Ingram Concrete, LLC:** 2018-03-02 through 2021-10-31; derived from co-tenure at mine 4103599; source `msha-controller-operator-history`.
- **Vulcan Materials Company → Vulcan Construction Materials, LLC:** 2021-11-01 through current/open; derived from co-tenure at mine 4103599; source `msha-controller-operator-history`.
- **Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, LLC:** 2021-11-01 through 2007-11-15; derived from co-tenure at mine 4103599; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- Interval anomalies: 1
- 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 — 4 since 2021:** Accidents and injuries 19 historical accident/injury rows; 0 coded fatalities and 133 lost days across the published record.
2. **COMPLIANCE — 24 since 2021:** Violations and penalties 246 violation rows across the full record; 64 carry an S&S flag and $105,692 appears in current assessed amounts.
3. **HEALTH — 29 samples:** Occupational health samples 29 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 11K employee hours and 17 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 27 linked rows:** Contests, conferences and decisions 13 contested-violation rows, 13 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 — 11 since 2021:** Inspections 80 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 56.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104
- **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 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.4200 — General requirements.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **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 56.14100 — 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 56.12018 — 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 56.14108 — Overhead drive belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14108

## Source coverage

- **Accident, Injuries, and Illnesses:** 19 rows; 2004-05-28 through 2026-02-19; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1990-03-24 through 1990-03-24; source ID `msha-addresses`
- **Assessed Violations:** 245 rows; 2000-08-23 through 2026-06-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 13 rows; 2010-08-20 through 2016-11-30; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2025-12-30 through 2025-12-30; source ID `msha-conferences`
- **Contested Violations:** 13 rows; 2009-07-29 through 2016-05-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 225 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 51 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1990-03-01 through 2021-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 80 rows; 2000-08-23 through 2026-06-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 210 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 29 rows; 2002-02-06 through 2022-11-30; source ID `msha-personal-health-samples`
- **Violations:** 246 rows; 2000-08-23 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/north-amarillo-4103599`
- JSON: `/api/v1/mines/north-amarillo-4103599`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4103599/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4103599/relationships`
- MCP resource: `mine://4103599/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`