# Portable Plant #1

- **MSHA mine ID:** 4103694
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** San Patricio, TX
- **Operator:** Wright Materials
- **Controller:** ATM Holdings LLC
- **Public source rows linked:** 666
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**ATM Holdings LLC (0170201) → Wright Materials (0160993) → Portable Plant #1 (4103694)**

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

## Controller and operator valid-time history

- **Ruth G  Wright et al → Wright Materials Inc:** 1991-10-01 through 2020-06-16; derived from co-tenure at mine 4103694; source `msha-controller-operator-history`.
- **Tracy  Wright et al → Wright Materials Inc:** 2020-06-17 through 2024-06-02; derived from co-tenure at mine 4103694; source `msha-controller-operator-history`.
- **Larry  Wright et al → Wright Materials Inc:** 2020-06-17 through 2024-06-02; derived from co-tenure at mine 4103694; source `msha-controller-operator-history`.
- **Mark W Truesdale et al → Wright Materials Inc:** 2020-06-17 through 2024-06-02; derived from co-tenure at mine 4103694; source `msha-controller-operator-history`.
- **Tex-Mix Partners Ltd → Wright Materials:** 2024-06-03 through 2021-12-31; derived from co-tenure at mine 4103694; source `msha-controller-operator-history`.
- **ATM Holdings LLC → Wright Materials:** 2024-06-03 through current/open; derived from co-tenure at mine 4103694; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 12
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 4 historical accident/injury rows; 0 coded fatalities and 7 lost days across the published record.
2. **COMPLIANCE — 38 since 2021:** Violations and penalties 212 violation rows across the full record; 65 carry an S&S flag and $96,846 appears in current assessed amounts.
3. **HEALTH — 11 samples:** Occupational health samples 11 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 4K employee hours and 6 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 5 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 3 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 — 14 since 2021:** Inspections 88 inspection events and 983 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 46.12 — Responsibility for independent contractor training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.12
- **30 CFR 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **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
- **30 CFR 46.9 — Records of training.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.9100 — Traffic control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9100
- **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 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **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 56.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104

## Source coverage

- **Accident, Injuries, and Illnesses:** 4 rows; 2002-07-31 through 2013-01-29; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-07-21 through 2025-07-21; source ID `msha-addresses`
- **Assessed Violations:** 210 rows; 2000-03-14 through 2025-11-13; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2011-01-31 through 2011-01-31; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 3 rows; 2000-10-26 through 2008-07-22; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2010-07-22 through 2010-07-22; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 40 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 11 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1991-10-01 through 2024-06-03; source ID `msha-controller-operator-history`
- **Inspections:** 88 rows; 2000-03-14 through 2025-11-13; 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:** 53 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:** 11 rows; 2009-11-03 through 2025-11-13; source ID `msha-personal-health-samples`
- **Violations:** 212 rows; 2000-03-14 through 2025-11-13; 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/portable-plant-1-4103694`
- JSON: `/api/v1/mines/portable-plant-1-4103694`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4103694/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4103694/relationships`
- MCP resource: `mine://4103694/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`