# Prep Plant

- **MSHA mine ID:** 1509546
- **Status:** NonProducing
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Bell, KY
- **Operator:** DDB Energy Resources, LLC
- **Controller:** Douglas  Warriner
- **Public source rows linked:** 1,375
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Douglas  Warriner (0125341) → DDB Energy Resources, LLC (0146395) → Prep Plant (1509546)**

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

## Controller and operator valid-time history

- **Duke Power Company → Eastover Mining Company:** 1976-03-12 through 1983-05-11; derived from co-tenure at mine 1509546; source `msha-controller-operator-history`.
- **Stanley  Finley et al → Little Creek Coal Company:** 1983-05-12 through 1988-07-10; derived from co-tenure at mine 1509546; source `msha-controller-operator-history`.
- **Andalex Resources B V → Andalex Resources Inc:** 1988-07-11 through 1994-07-19; derived from co-tenure at mine 1509546; source `msha-controller-operator-history`.
- **Benjamin R.  Bennett → Left Fork Mining Co Inc:** 1994-07-20 through 2016-07-13; derived from co-tenure at mine 1509546; source `msha-controller-operator-history`.
- **Robert E  Murray → Andalex Resources Inc:** 2006-08-09 through 1994-07-19; derived from co-tenure at mine 1509546; source `msha-controller-operator-history`.
- **Douglas  Warriner → DDB Energy Resources, LLC:** 2016-07-14 through current/open; derived from co-tenure at mine 1509546; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 17
- 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 12 historical accident/injury rows; 0 coded fatalities and 187 lost days across the published record.
2. **COMPLIANCE — 6 since 2021:** Violations and penalties 311 violation rows across the full record; 96 carry an S&S flag and $49,506 appears in current assessed amounts.
3. **HEALTH — 104 samples:** Occupational health samples 75 coal dust; 29 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 262 linked rows:** Contests, conferences and decisions 98 contested-violation rows, 98 civil-penalty docket/decision rows, and 66 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 160 inspection events and 3K 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 77.216-3 — Water, sediment, or slurry impoundments and impounding structures; inspection requirements; correction of hazards; program requirements.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216-3
- **30 CFR 77.216 — Water, sediment, or slurry impoundments and impounding structures; general.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216
- **30 CFR 77.1202 — Availability of mine map.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-M/section-77.1202
- **30 CFR 77.900-2 — Testing, examination, and maintenance of circuit breakers; record.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-J/section-77.900-2
- **30 CFR 77.1702 — Arrangements for emergency medical assistance and transportation for injured persons; reporting requirements; posting requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1702

## Source coverage

- **Accident, Injuries, and Illnesses:** 12 rows; 2006-04-29 through 2011-01-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2011-01-24 through 2011-01-24; source ID `msha-addresses`
- **Assessed Violations:** 295 rows; 2001-01-09 through 2023-09-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 98 rows; 2008-12-10 through 2014-02-20; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 75 rows; 2005-11-02 through 2010-09-20; source ID `msha-coal-dust-samples`
- **Conferences:** 66 rows; 2000-03-21 through 2008-06-17; source ID `msha-conferences`
- **Contested Violations:** 98 rows; 2007-08-13 through 2012-08-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 7 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Controller and Operator History:** 6 rows; 1976-03-12 through 2016-07-14; source ID `msha-controller-operator-history`
- **Inspections:** 160 rows; 2000-03-17 through 2026-09-23; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 184 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 32 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 29 rows; 2006-09-22 through 2010-09-20; source ID `msha-noise-samples`
- **Violations:** 311 rows; 2001-01-09 through 2026-09-23; 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/prep-plant-1509546`
- JSON: `/api/v1/mines/prep-plant-1509546`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1509546/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1509546/relationships`
- MCP resource: `mine://1509546/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`