# No. 75

- **MSHA mine ID:** 1517478
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Perry, KY
- **Operator:** Blue Diamond Coal Company
- **Controller:** Sev.en Global Investments a.s.
- **Public source rows linked:** 15,214
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Sev.en Global Investments a.s. (0158381) → Blue Diamond Coal Company (0134733) → No. 75 (1517478)**

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

## Controller and operator valid-time history

- **Blue Diamond Coal Company → Blue Diamond Coal Company:** 1993-11-01 through 1994-07-11; derived from co-tenure at mine 1517478; source `msha-controller-operator-history`.
- **Allen G  Stump et al → Twin Pines Inc:** 1994-07-12 through 1997-08-13; derived from co-tenure at mine 1517478; source `msha-controller-operator-history`.
- **Charles  Collins → Calvary Coal Company Inc:** 1997-08-14 through 1998-05-17; derived from co-tenure at mine 1517478; source `msha-controller-operator-history`.
- **James River Coal Company → Blue Diamond Coal Company:** 1998-05-18 through 2014-09-03; derived from co-tenure at mine 1517478; source `msha-controller-operator-history`.
- **Blackhawk Mining LLC → Blue Diamond Coal Company:** 2014-09-04 through 2020-05-31; derived from co-tenure at mine 1517478; source `msha-controller-operator-history`.
- **Sev.en Global Investments a.s. → Blue Diamond Coal Company:** 2020-06-01 through current/open; derived from co-tenure at mine 1517478; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 17
- 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 267 historical accident/injury rows; 0 coded fatalities and 6,028 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 3,635 violation rows across the full record; 1,129 carry an S&S flag and $1,902,036 appears in current assessed amounts.
3. **HEALTH — 5K samples:** Occupational health samples 4,040 coal dust; 444 coal quartz; 266 noise. 0 personal-sample rows have a published C/E ratio above 1; 51 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 — 1,279 linked rows:** Contests, conferences and decisions 593 contested-violation rows, 603 civil-penalty docket/decision rows, and 83 conference records linked by issuance number.
6. **CONTRACTORS — 10 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 — 8 since 2021:** Inspections 344 inspection events and 32K 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 75.1711 — Sealing of mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1711
- **30 CFR 75.1403 — Other safeguards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1403
- **30 CFR 75.1714-4 — Additional self-contained self-rescuers (SCSRs).** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-4
- **30 CFR 75.512 — Electric equipment; examination, testing and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512
- **30 CFR 75.312 — Main mine fan examinations and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.312
- **30 CFR 75.902 — Low- and medium-voltage ground check monitor circuits.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-J/section-75.902
- **30 CFR 77.506 — Electric equipment and circuits; overload and short-circuit protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.506
- **30 CFR 75.800-4 — Testing, examination, and maintenance of circuit breakers; record.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-I/section-75.800-4
- **30 CFR 75.503 — Permissible electric face equipment; maintenance.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503

## Source coverage

- **Accident, Injuries, and Illnesses:** 267 rows; 2000-01-04 through 2015-08-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-08-05 through 2022-08-05; source ID `msha-addresses`
- **Assessed Violations:** 3,522 rows; 2000-01-10 through 2022-03-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 603 rows; 2000-11-21 through 2016-10-18; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 4,040 rows; 2000-01-17 through 2015-11-24; source ID `msha-coal-dust-samples`
- **Conferences:** 83 rows; 2000-07-25 through 2015-10-02; source ID `msha-conferences`
- **Contested Violations:** 593 rows; 2006-02-21 through 2015-11-24; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 990 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 206 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1993-11-01 through 2014-09-04; source ID `msha-controller-operator-history`
- **Inspections:** 344 rows; 2000-01-03 through 2022-08-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 186 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 27 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 266 rows; 2000-04-03 through 2015-11-24; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 444 rows; 2000-01-20 through 2015-04-07; source ID `msha-quartz-samples`
- **Violations:** 3,635 rows; 2000-01-10 through 2022-03-16; 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/no-75-1517478`
- JSON: `/api/v1/mines/no-75-1517478`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1517478/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1517478/relationships`
- MCP resource: `mine://1517478/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`