# Mine No. 1

- **MSHA mine ID:** 4003264
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Cumberland, TN
- **Operator:** Crossville Coal Inc
- **Controller:** Hillsborough Resources LTD
- **Public source rows linked:** 173
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Hillsborough Resources LTD (0050789) → Crossville Coal Inc (0060903) → Mine No. 1 (4003264)**

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

## Controller and operator valid-time history

- **Hillsborough Resources LTD → Crossville Coal Inc:** 2005-06-14 through current/open; derived from co-tenure at mine 4003264; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 3 historical accident/injury rows; 0 coded fatalities and 41 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 26 violation rows across the full record; 10 carry an S&S flag and $1,905 appears in current assessed amounts.
3. **HEALTH — 80 samples:** Occupational health samples 68 coal dust; 3 coal quartz; 9 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 207 employee hours and 1 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 — 0 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 9 inspection events and 458 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 75.706 — Deenergized underground power circuits; idle days—idle shifts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-H/section-75.706
- **30 CFR 75.208 — Warning devices.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.208
- **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 75.523-2 — 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 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
- **30 CFR 75.904 — Identification of circuit breakers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-J/section-75.904
- **30 CFR 75.900 — Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-J/section-75.900
- **30 CFR 75.1722 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1722
- **30 CFR 75.400 — Accumulation of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.1907 — Diesel-powered equipment intended for use in underground coal mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-T/section-75.1907

## Source coverage

- **Accident, Injuries, and Illnesses:** 3 rows; 2006-03-27 through 2006-08-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2007-02-27 through 2007-02-27; source ID `msha-addresses`
- **Assessed Violations:** 26 rows; 2005-11-16 through 2006-08-01; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 68 rows; 2005-11-16 through 2006-08-15; source ID `msha-coal-dust-samples`
- **Controller and Operator History:** 1 rows; 2005-06-14 through 2005-06-14; source ID `msha-controller-operator-history`
- **Inspections:** 9 rows; 2005-07-26 through 2007-02-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 21 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 5 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 9 rows; 2005-11-15 through 2006-06-26; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 3 rows; 2006-03-07 through 2006-08-14; source ID `msha-quartz-samples`
- **Violations:** 26 rows; 2005-11-16 through 2006-08-01; 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/mine-no-1-4003264`
- JSON: `/api/v1/mines/mine-no-1-4003264`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4003264/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4003264/relationships`
- MCP resource: `mine://4003264/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`