# Risner #1

- **MSHA mine ID:** 1519107
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Floyd, KY
- **Operator:** Blackhawk Mining, LLC
- **Controller:** Blackhawk Mining LLC
- **Public source rows linked:** 287
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Blackhawk Mining LLC (0109461) → Blackhawk Mining, LLC (0111625) → Risner #1 (1519107)**

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

## Controller and operator valid-time history

- **Jim D  Akers et al → South Akers Mining Company, LLC:** 2007-05-08 through 2008-04-27; derived from co-tenure at mine 1519107; source `msha-controller-operator-history`.
- **Harold E  Akers et al → South Akers Mining Company, LLC:** 2007-05-08 through 2008-04-27; derived from co-tenure at mine 1519107; source `msha-controller-operator-history`.
- **Carl  Kirk et al → North Star Mining Inc:** 2008-04-28 through 2010-12-26; derived from co-tenure at mine 1519107; source `msha-controller-operator-history`.
- **John M  Potter et al → Blackhawk Mining, LLC:** 2010-12-27 through 2013-06-30; derived from co-tenure at mine 1519107; source `msha-controller-operator-history`.
- **Thomas A  Potter et al → Blackhawk Mining, LLC:** 2010-12-27 through 2013-06-30; derived from co-tenure at mine 1519107; source `msha-controller-operator-history`.
- **Blackhawk Mining LLC → Blackhawk Mining, LLC:** 2013-07-01 through current/open; derived from co-tenure at mine 1519107; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 13
- 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 2 historical accident/injury rows; 0 coded fatalities and 72 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 64 violation rows across the full record; 21 carry an S&S flag and $9,596 appears in current assessed amounts.
3. **HEALTH — 82 samples:** Occupational health samples 67 coal dust; 5 coal quartz; 10 noise. 0 personal-sample rows have a published C/E ratio above 1; 0 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 — 26 linked rows:** Contests, conferences and decisions 12 contested-violation rows, 12 civil-penalty docket/decision rows, and 2 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 20 inspection events and 608 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 75.1100-2 — Quantity and location of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-2
- **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 75.503 — Permissible electric face equipment; maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503
- **30 CFR 77.202 — Dust accumulations in surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.202
- **30 CFR 75.606 — Protection of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.606
- **30 CFR 75.370 — Mine ventilation plan; submission and approval.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.370
- **30 CFR 75.1502 — Mine emergency evacuation and firefighting program of instruction.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1502
- **30 CFR 75.220 — Roof control plan.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.220

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2008-07-02 through 2008-07-23; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-06-15 through 2012-06-15; source ID `msha-addresses`
- **Assessed Violations:** 63 rows; 2007-05-15 through 2008-10-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 12 rows; 2008-08-28 through 2009-11-02; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 67 rows; 2007-08-07 through 2008-10-24; source ID `msha-coal-dust-samples`
- **Conferences:** 2 rows; 2007-12-13 through 2008-10-07; source ID `msha-conferences`
- **Contested Violations:** 12 rows; 2007-09-17 through 2008-04-07; source ID `msha-contested-violations`
- **Controller and Operator History:** 6 rows; 2007-05-08 through 2010-12-27; source ID `msha-controller-operator-history`
- **Inspections:** 20 rows; 2007-05-14 through 2011-02-07; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 17 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:** 10 rows; 2007-11-19 through 2008-09-23; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 5 rows; 2007-08-07 through 2007-11-19; source ID `msha-quartz-samples`
- **Violations:** 64 rows; 2007-05-15 through 2008-10-22; 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/risner-1-1519107`
- JSON: `/api/v1/mines/risner-1-1519107`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1519107/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1519107/relationships`
- MCP resource: `mine://1519107/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`