# Simpson Br

- **MSHA mine ID:** 1518763
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Floyd, KY
- **Operator:** Pike-Floyd Mining, Inc.
- **Controller:** Jimmy D  Tackett
- **Public source rows linked:** 803
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Jimmy D  Tackett (0073731) → Pike-Floyd Mining, Inc. (0115605) → Simpson Br (1518763)**

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

## Controller and operator valid-time history

- **Conroy  Coleman  et al → C & L Coal Co Inc:** 2004-05-20 through 2005-03-20; derived from co-tenure at mine 1518763; source `msha-controller-operator-history`.
- **Randall G  Vance → RV Mining LLC:** 2005-03-21 through 2009-03-25; derived from co-tenure at mine 1518763; source `msha-controller-operator-history`.
- **Jimmy W  Tackett et al → MiTac Mining, LLC:** 2009-03-26 through 2010-10-11; derived from co-tenure at mine 1518763; source `msha-controller-operator-history`.
- **John M  Potter et al → Blackhawk Mining LLC:** 2010-10-12 through 2010-11-09; derived from co-tenure at mine 1518763; source `msha-controller-operator-history`.
- **Thomas A  Potter et al → Blackhawk Mining LLC:** 2010-10-12 through 2010-11-09; derived from co-tenure at mine 1518763; source `msha-controller-operator-history`.
- **Jimmy D  Tackett → Pike-Floyd Mining, Inc.:** 2010-11-10 through current/open; derived from co-tenure at mine 1518763; source `msha-controller-operator-history`.
- **Blackhawk Mining LLC → Blackhawk Mining LLC:** 2013-07-01 through 2010-11-09; derived from co-tenure at mine 1518763; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 18
- 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 204 violation rows across the full record; 75 carry an S&S flag and $37,972 appears in current assessed amounts.
3. **HEALTH — 219 samples:** Occupational health samples 164 coal dust; 14 coal quartz; 41 noise. 0 personal-sample rows have a published C/E ratio above 1; 1 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 — 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 — 0 since 2021:** Inspections 56 inspection events and 1K 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 77.1605 — Loading and haulage equipment; installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 77.403-1 — Mobile equipment; rollover protective structures (ROPS).** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.403-1
- **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 70.101 — [Reserved]** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-70/subpart-B/section-70.101
- **30 CFR 75.523-2 — Deenergization of self-propelled electric face equipment; performance requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.523-2
- **30 CFR 72.630 — Drill dust control at underground areas of underground mines.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.630
- **30 CFR 75.370 — Mine ventilation plan; submission and approval.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.370
- **30 CFR 75.342 — Methane monitors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.342
- **30 CFR 75.1200-1 — Additional information on mine map.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-M/section-75.1200-1

## Source coverage

- **Addresses of Record:** 1 rows; 2013-12-27 through 2013-12-27; source ID `msha-addresses`
- **Assessed Violations:** 199 rows; 2004-06-14 through 2013-03-11; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 164 rows; 2004-04-20 through 2013-02-22; source ID `msha-coal-dust-samples`
- **Contractor Employment and Production — Quarterly:** 43 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 10 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 2004-05-20 through 2010-11-10; source ID `msha-controller-operator-history`
- **Inspections:** 56 rows; 2004-05-24 through 2013-10-25; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 50 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 13 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 41 rows; 2004-07-19 through 2013-01-31; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 14 rows; 2004-07-19 through 2013-02-22; source ID `msha-quartz-samples`
- **Violations:** 204 rows; 2004-06-14 through 2013-03-11; 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/simpson-br-1518763`
- JSON: `/api/v1/mines/simpson-br-1518763`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1518763/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1518763/relationships`
- MCP resource: `mine://1518763/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`