# Voca Plant

- **MSHA mine ID:** 4103929
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Mcculloch, TX
- **Operator:** Covia Holdings Corporaton
- **Controller:** Covia Holdings LLC
- **Public source rows linked:** 1,272
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Covia Holdings LLC (0159743) → Covia Holdings Corporaton (L00645) → Voca Plant (4103929)**

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

## Controller and operator valid-time history

- **S C R-Sibelco Nv et al → Covia Holdings Corporaton:** 1996-09-01 through 2020-12-31; derived from co-tenure at mine 4103929; source `msha-controller-operator-history`.
- **Covia Holdings LLC → Covia Holdings Corporaton:** 2021-01-01 through current/open; derived from co-tenure at mine 4103929; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 50 historical accident/injury rows; 0 coded fatalities and 732 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 139 violation rows across the full record; 28 carry an S&S flag and $48,590 appears in current assessed amounts.
3. **HEALTH — 25 samples:** Occupational health samples 25 personal. 1 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 16K employee hours and 29 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 53 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 6 civil-penalty docket/decision rows, and 41 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 — 0 since 2021:** Inspections 59 inspection events and 949 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 56.4201 — Inspection.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 62.175 — Notification of results; reporting requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.175
- **30 CFR 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.14109 — Unguarded conveyors with adjacent travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14109
- **30 CFR 56.3130 — Wall, bank, and slope stability.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3130
- **30 CFR 56.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3200
- **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 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 50 rows; 2001-05-02 through 2018-08-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-02-04 through 2019-02-04; source ID `msha-addresses`
- **Assessed Violations:** 137 rows; 2000-02-02 through 2018-09-11; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2007-12-18 through 2018-07-03; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 41 rows; 2002-02-15 through 2014-04-03; source ID `msha-conferences`
- **Contested Violations:** 6 rows; 2007-02-13 through 2017-10-24; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 520 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 97 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1996-09-01 through 1996-09-01; source ID `msha-controller-operator-history`
- **Inspections:** 59 rows; 2000-02-02 through 2018-09-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 150 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 38 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:** 25 rows; 2003-09-16 through 2017-08-10; source ID `msha-personal-health-samples`
- **Violations:** 139 rows; 2000-02-02 through 2018-09-11; 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/voca-plant-4103929`
- JSON: `/api/v1/mines/voca-plant-4103929`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4103929/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4103929/relationships`
- MCP resource: `mine://4103929/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`