# Pioneer Load Out

- **MSHA mine ID:** 1516710
- **Status:** Abandoned
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Knott, KY
- **Operator:** Enterprise Mining Company LLC
- **Controller:** Alpha Natural Resources Holdings, Inc
- **Public source rows linked:** 803
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Natural Resources Holdings, Inc (0127923) → Enterprise Mining Company LLC (0051027) → Pioneer Load Out (1516710)**

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

## Controller and operator valid-time history

- **Florida Progress Corporation → Diamond May Coal Company Inc:** 1989-08-01 through 2000-11-29; derived from co-tenure at mine 1516710; source `msha-controller-operator-history`.
- **Progress Energy Inc → Diamond May Coal Co Inc:** 2002-01-28 through 2006-05-04; derived from co-tenure at mine 1516710; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Enterprise Mining Company LLC:** 2006-05-05 through 2016-07-25; derived from co-tenure at mine 1516710; source `msha-controller-operator-history`.
- **Amfire LLC → Enterprise Mining Company LLC:** 2006-05-05 through 2003-01-31; derived from co-tenure at mine 1516710; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Enterprise Mining Company LLC:** 2016-07-26 through current/open; derived from co-tenure at mine 1516710; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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 — 0 since 2021:** Violations and penalties 58 violation rows across the full record; 23 carry an S&S flag and $4,443 appears in current assessed amounts.
3. **HEALTH — 133 samples:** Occupational health samples 83 coal dust; 5 coal quartz; 45 noise. 0 personal-sample rows have a published C/E ratio above 1; 3 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 6K employee hours and 9 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 — 11 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 46 inspection events and 834 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 77.404 — Machinery and equipment; operation and maintenance.** (7 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 77.1104 — Accumulations of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104
- **30 CFR 77.205 — Travelways at surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205

## Source coverage

- **Addresses of Record:** 1 rows; 2008-01-25 through 2008-01-25; source ID `msha-addresses`
- **Assessed Violations:** 57 rows; 2000-04-05 through 2007-05-10; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 83 rows; 2000-01-20 through 2007-12-13; source ID `msha-coal-dust-samples`
- **Contractor Employment and Production — Quarterly:** 355 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 87 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1989-08-01 through 2006-05-05; source ID `msha-controller-operator-history`
- **Inspections:** 46 rows; 2000-01-20 through 2007-12-04; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 52 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 8 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 45 rows; 2000-01-20 through 2007-04-10; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 5 rows; 2001-03-29 through 2005-01-04; source ID `msha-quartz-samples`
- **Violations:** 58 rows; 2000-04-05 through 2007-05-10; 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/pioneer-load-out-1516710`
- JSON: `/api/v1/mines/pioneer-load-out-1516710`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1516710/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1516710/relationships`
- MCP resource: `mine://1516710/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`