# La Grange Mine

- **MSHA mine ID:** 0404900
- **Status:** Active
- **Type / commodity:** Surface / Dimension Stone NEC
- **Location:** Trinity, CA
- **Operator:** Eagle Rock Inc
- **Controller:** Sherrie L  Zappola; David W  Yingling et at
- **Public source rows linked:** 978
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Sherrie L  Zappola; David W  Yingling et at (0192460) → Eagle Rock Inc (L09730) → La Grange Mine (0404900)**

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

## Controller and operator valid-time history

- **Larry E  Yingling → Eagle Rock Inc:** 1987-09-01 through 2025-01-05; derived from co-tenure at mine 0404900; source `msha-controller-operator-history`.
- **Sherrie L  Zappola et al → Eagle Rock Inc:** 2025-01-06 through current/open; derived from co-tenure at mine 0404900; source `msha-controller-operator-history`.
- **David W  Yingling et at → Eagle Rock Inc:** 2025-01-06 through current/open; derived from co-tenure at mine 0404900; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 6
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 13 lost days across the published record.
2. **COMPLIANCE — 109 since 2021:** Violations and penalties 340 violation rows across the full record; 76 carry an S&S flag and $131,559 appears in current assessed amounts.
3. **HEALTH — 12 samples:** Occupational health samples 12 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 16 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 115 linked rows:** Contests, conferences and decisions 54 contested-violation rows, 54 civil-penalty docket/decision rows, and 7 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 — 28 since 2021:** Inspections 75 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 56.14105 — Procedures during repairs or maintenance.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14105
- **30 CFR 46.7 — New task training.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2002-07-22 through 2002-07-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-07-24 through 2012-07-24; source ID `msha-addresses`
- **Assessed Violations:** 338 rows; 2000-09-06 through 2026-07-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 54 rows; 2012-12-21 through 2024-06-07; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2012-01-09 through 2015-03-17; source ID `msha-conferences`
- **Contested Violations:** 54 rows; 2011-10-12 through 2023-06-29; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 16 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 4 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1987-09-01 through 1987-09-01; source ID `msha-controller-operator-history`
- **Inspections:** 75 rows; 2000-09-06 through 2026-08-11; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 18 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:** 12 rows; 2002-03-13 through 2026-04-01; source ID `msha-personal-health-samples`
- **Violations:** 340 rows; 2000-09-06 through 2026-07-22; 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/la-grange-mine-0404900`
- JSON: `/api/v1/mines/la-grange-mine-0404900`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0404900/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0404900/relationships`
- MCP resource: `mine://0404900/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`