# Hueni Plant

- **MSHA mine ID:** 4104217
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Montgomery, TX
- **Operator:** Hallett Materials
- **Controller:** Rasmussen Group Inc
- **Public source rows linked:** 181
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Rasmussen Group Inc (M12677) → Hallett Materials (0086285) → Hueni Plant (4104217)**

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

## Controller and operator valid-time history

- **Rasmussen Group Inc → Hallett Materials:** 2000-09-01 through 2001-08-10; derived from co-tenure at mine 4104217; source `msha-controller-operator-history`.
- **CRH PLC → Hallett Materials:** 2001-08-11 through 2001-08-10; derived from co-tenure at mine 4104217; source `msha-controller-operator-history`.
- **Rasmussen Group Inc → Hallett Materials:** 2001-08-11 through current/open; derived from co-tenure at mine 4104217; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- 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 — 0 since 2021:** Accidents and injuries 2 historical accident/injury rows; 1 coded fatalities and 8 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 22 violation rows across the full record; 3 carry an S&S flag and $2,600 appears in current assessed amounts.
3. **HEALTH — 3 samples:** Occupational health samples 3 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 — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 24 inspection events and 304 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 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **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 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 46.3 — Training plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.3
- **30 CFR 57.4603 — Closure of valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4603
- **30 CFR 57.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11001
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — 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 46.11 — Site-specific hazard awareness training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.11
- **30 CFR 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **30 CFR 56.9101 — Operating speeds and control of equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9101

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2007-05-25 through 2008-10-01; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2010-09-08 through 2010-09-08; source ID `msha-addresses`
- **Assessed Violations:** 21 rows; 2003-01-23 through 2010-07-13; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2008-11-20 through 2008-11-20; source ID `msha-conferences`
- **Controller and Operator History:** 3 rows; 2000-09-01 through 2001-08-11; source ID `msha-controller-operator-history`
- **Inspections:** 24 rows; 2002-02-04 through 2010-07-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 80 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 23 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:** 3 rows; 2007-07-12 through 2007-07-12; source ID `msha-personal-health-samples`
- **Violations:** 22 rows; 2003-01-23 through 2010-07-13; 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/hueni-plant-4104217`
- JSON: `/api/v1/mines/hueni-plant-4104217`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4104217/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4104217/relationships`
- MCP resource: `mine://4104217/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`