# Jackrock No 1

- **MSHA mine ID:** 1517951
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Bell, KY
- **Operator:** Jackrock Llc
- **Controller:** Jack H Ealy; Ralph  Napier; John D North   -  JackrockLLC only8/27/99-5/
- **Public source rows linked:** 1,056
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Jack H Ealy; Ralph  Napier; John D North   -  JackrockLLC only8/27/99-5/ (C15881) → Jackrock Llc (P24305) → Jackrock No 1 (1517951)**

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

## Controller and operator valid-time history

- **Stanley R  Ditty → Del Rio Inc:** 1997-06-01 through 1999-04-12; derived from co-tenure at mine 1517951; source `msha-controller-operator-history`.
- **Gary  Asher → Appolo Fuels Inc:** 1999-04-13 through 1999-08-26; derived from co-tenure at mine 1517951; source `msha-controller-operator-history`.
- **John D North et al -  JackrockLLC only8/27/99-5/3/04 → Jackrock Llc:** 1999-08-27 through current/open; derived from co-tenure at mine 1517951; source `msha-controller-operator-history`.
- **Jack H Ealy et al → Jackrock Llc:** 1999-08-27 through current/open; derived from co-tenure at mine 1517951; source `msha-controller-operator-history`.
- **Ralph  Napier et al → Jackrock Llc:** 1999-08-27 through current/open; derived from co-tenure at mine 1517951; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 11
- 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 14 historical accident/injury rows; 0 coded fatalities and 862 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 152 violation rows across the full record; 44 carry an S&S flag and $19,115 appears in current assessed amounts.
3. **HEALTH — 433 samples:** Occupational health samples 371 coal dust; 31 coal quartz; 31 noise. 0 personal-sample rows have a published C/E ratio above 1; 5 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 — 10 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 2 civil-penalty docket/decision rows, and 8 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 69 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 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **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 75.370 — Mine ventilation plan; submission and approval.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.370
- **30 CFR 75.512-1 — Qualified person.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512-1
- **30 CFR 75.1714-3 — Self-rescue devices; inspection, testing, maintenance, repair, and recordkeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-3
- **30 CFR 75.203 — Mining methods.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.203
- **30 CFR 75.360 — Preshift examination at fixed intervals.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.360
- **30 CFR 75.503 — Permissible electric face equipment; maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503

## Source coverage

- **Accident, Injuries, and Illnesses:** 14 rows; 2000-04-25 through 2003-08-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2004-05-03 through 2004-05-03; source ID `msha-addresses`
- **Assessed Violations:** 149 rows; 2000-01-05 through 2004-01-20; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2003-04-03 through 2003-04-03; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 371 rows; 2000-01-14 through 2004-01-14; source ID `msha-coal-dust-samples`
- **Conferences:** 8 rows; 2001-08-01 through 2004-05-07; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 148 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 28 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1997-06-01 through 1999-08-27; source ID `msha-controller-operator-history`
- **Inspections:** 69 rows; 2000-01-04 through 2004-01-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 36 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 10 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 31 rows; 2000-01-06 through 2003-09-10; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 31 rows; 2000-02-01 through 2003-02-20; source ID `msha-quartz-samples`
- **Violations:** 152 rows; 2000-01-05 through 2004-01-20; 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/jackrock-no-1-1517951`
- JSON: `/api/v1/mines/jackrock-no-1-1517951`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1517951/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1517951/relationships`
- MCP resource: `mine://1517951/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`