# Penwell Crusher

- **MSHA mine ID:** 4104624
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Ector, TX
- **Operator:** Permian Basin Materials Aggregate
- **Controller:** Amrize South Central
- **Public source rows linked:** 1,340
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Amrize South Central (0199260) → Permian Basin Materials Aggregate (0208253) → Penwell Crusher (4104624)**

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

## Controller and operator valid-time history

- **Bill  Ingram et al → Odessa Concrete Supply, Inc.:** 2006-10-25 through 2010-06-30; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **Mike J  Baker et al → Odessa Concrete Supply, Inc.:** 2006-10-25 through 2010-06-30; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **Robert R  Wallach → Wallach Concrete Inc:** 2010-07-01 through 2015-07-31; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **W L Ross & Co LLC et al → Permian Basin Materials, LLC:** 2015-08-01 through 2016-02-09; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **PBM Holdings → PBM Aggregates, LLC:** 2016-02-10 through 2017-07-06; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **W L Ross & Co LLC et al → Permian Basin Materials LLC:** 2017-07-07 through 2026-02-17; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **Amrize South Central → Permian Basin Materials, LLC:** 2026-02-18 through 2016-02-09; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **Amrize South Central → Permian Basin Materials LLC:** 2026-02-18 through 2026-02-17; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.
- **Amrize South Central → Permian Basin Materials Aggregate:** 2026-02-18 through current/open; derived from co-tenure at mine 4104624; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 20
- Interval anomalies: 2
- 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 — 8 since 2021:** Accidents and injuries 13 historical accident/injury rows; 0 coded fatalities and 213 lost days across the published record.
2. **COMPLIANCE — 106 since 2021:** Violations and penalties 202 violation rows across the full record; 43 carry an S&S flag and $172,101 appears in current assessed amounts.
3. **HEALTH — 62 samples:** Occupational health samples 62 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 19 linked rows:** Contests, conferences and decisions 8 contested-violation rows, 8 civil-penalty docket/decision rows, and 3 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 — 33 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 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.9300 — 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 56.4011 — Abandoned electric circuits.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4011
- **30 CFR 56.20011 — Barricades and warning signs.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.16010 — Dropping materials from overhead.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16010
- **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 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100

## Source coverage

- **Accident, Injuries, and Illnesses:** 13 rows; 2013-08-15 through 2024-09-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2018-02-09 through 2018-02-09; source ID `msha-addresses`
- **Assessed Violations:** 200 rows; 2007-11-20 through 2026-06-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2022-07-05 through 2026-04-01; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 3 rows; 2024-03-27 through 2024-03-27; source ID `msha-conferences`
- **Contested Violations:** 8 rows; 2021-10-26 through 2024-02-15; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 604 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 107 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 2006-10-25 through 2026-02-18; source ID `msha-controller-operator-history`
- **Inspections:** 80 rows; 2006-11-01 through 2026-07-22; source ID `msha-inspections`
- **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:** 62 rows; 2007-04-25 through 2025-09-17; source ID `msha-personal-health-samples`
- **Violations:** 202 rows; 2007-11-20 through 2026-06-16; 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/penwell-crusher-4104624`
- JSON: `/api/v1/mines/penwell-crusher-4104624`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4104624/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4104624/relationships`
- MCP resource: `mine://4104624/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`