# Plant #3

- **MSHA mine ID:** 3503943
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Coos, OR
- **Operator:** Yates Road Building
- **Controller:** Griff A  Yates; Spencer C  Yates
- **Public source rows linked:** 12
- **Source coverage:** 7 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Griff A  Yates; Spencer C  Yates (0147381) → Yates Road Building (0108265) → Plant #3 (3503943)**

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

## Controller and operator valid-time history

- **Charlie L  Yates → Yates Road Building:** 2023-04-04 through 2019-04-21; derived from co-tenure at mine 3503943; source `msha-controller-operator-history`.
- **Spencer C  Yates et al → Yates Road Building:** 2023-04-04 through current/open; derived from co-tenure at mine 3503943; source `msha-controller-operator-history`.
- **Griff A  Yates et al → Yates Road Building:** 2023-04-04 through current/open; derived from co-tenure at mine 3503943; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 6
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 1 violation rows across the full record; 0 carry an S&S flag and $143 appears in current assessed amounts.
3. **HEALTH — 0 samples:** Occupational health samples No published samples. 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 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 — 1 since 2021:** Inspections 1 inspection events and 1 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 41.11 — Notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.11

## Source coverage

- **Addresses of Record:** 1 rows; 2024-07-08 through 2024-07-08; source ID `msha-addresses`
- **Assessed Violations:** 1 rows; 2023-07-10 through 2023-07-10; source ID `msha-assessed-violations`
- **Controller and Operator History:** 3 rows; 2023-04-04 through 2023-04-04; source ID `msha-controller-operator-history`
- **Inspections:** 1 rows; 2023-07-10 through 2023-07-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 4 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 1 rows; 2023-07-10 through 2023-07-10; 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/plant-3-3503943`
- JSON: `/api/v1/mines/plant-3-3503943`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3503943/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3503943/relationships`
- MCP resource: `mine://3503943/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`