# Ogden

- **MSHA mine ID:** 3610291
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Clearfield, PA
- **Operator:** Swisher Contracting Inc
- **Controller:** Leonard O  Swisher Jr
- **Public source rows linked:** 129
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Leonard O  Swisher Jr (C11070) → Swisher Contracting Inc (P15417) → Ogden (3610291)**

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

## Controller and operator valid-time history

- **Leonard O  Swisher Jr → Swisher Contracting Inc:** 2019-05-24 through current/open; derived from co-tenure at mine 3610291; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 2 since 2021:** Violations and penalties 2 violation rows across the full record; 1 carry an S&S flag and $276 appears in current assessed amounts.
3. **HEALTH — 73 samples:** Occupational health samples 45 coal dust; 10 coal quartz; 18 noise. 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 — 4K tons:** Quarterly production and employment 1K employee hours and 5 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 — 13 since 2021:** Inspections 17 inspection events and 390 published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 547 short tons
- **Labor hours:** 2,354
- **Average employees:** 3
- **Coal supply region:** Appalachia Northern
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404
- **30 CFR 77.405 — Performing work from a raised position; safeguards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.405

## Source coverage

- **Addresses of Record:** 1 rows; 2026-09-23 through 2026-09-23; source ID `msha-addresses`
- **Assessed Violations:** 2 rows; 2021-08-03 through 2025-05-19; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 45 rows; 2019-06-12 through 2026-09-24; source ID `msha-coal-dust-samples`
- **Controller and Operator History:** 1 rows; 2019-05-24 through 2019-05-24; source ID `msha-controller-operator-history`
- **Inspections:** 17 rows; 2019-06-06 through 2026-09-24; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 25 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 7 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 18 rows; 2019-06-17 through 2026-09-24; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 10 rows; 2019-12-17 through 2025-10-28; source ID `msha-quartz-samples`
- **Violations:** 2 rows; 2021-08-03 through 2025-05-19; 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/ogden-3610291`
- JSON: `/api/v1/mines/ogden-3610291`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3610291/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3610291/relationships`
- MCP resource: `mine://3610291/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`