# Mine No 20

- **MSHA mine ID:** 1518098
- **Status:** Abandoned
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Harlan, KY
- **Operator:** Cloverfork Mining & Excavating Inc
- **Controller:** Benjamin R.  Bennett
- **Public source rows linked:** 1,524
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Benjamin R.  Bennett (C00015) → Cloverfork Mining & Excavating Inc (P14483) → Mine No 20 (1518098)**

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

## Controller and operator valid-time history

- **Benjamin R.  Bennett → Cloverfork Mining & Excavating Inc:** 1998-09-01 through current/open; derived from co-tenure at mine 1518098; 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 9 historical accident/injury rows; 0 coded fatalities and 297 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 164 violation rows across the full record; 76 carry an S&S flag and $58,208 appears in current assessed amounts.
3. **HEALTH — 260 samples:** Occupational health samples 231 coal dust; 19 coal quartz; 10 noise. 0 personal-sample rows have a published C/E ratio above 1; 2 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 — 12K tons:** Quarterly production and employment 3K employee hours and 8 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 149 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 135 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.
6. **CONTRACTORS — 6 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 51 inspection events and 793 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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404
- **30 CFR 77.1102 — Warning signs; smoking and open flame.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1102
- **30 CFR 48.26 — Experienced miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.26
- **30 CFR 77.410 — Mobile equipment; automatic warning devices.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410
- **30 CFR 77.205 — Travelways at surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 72.620 — Drill dust control at surface mines and surface areas of underground mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.620

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2000-01-14 through 2002-05-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2003-06-23 through 2003-06-23; source ID `msha-addresses`
- **Assessed Violations:** 162 rows; 2000-01-27 through 2003-05-20; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 135 rows; 2000-07-28 through 2003-08-26; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 231 rows; 2000-01-19 through 2002-12-02; source ID `msha-coal-dust-samples`
- **Conferences:** 13 rows; 2000-07-27 through 2002-08-07; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2002-04-10 through 2002-04-10; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 579 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 111 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 1998-09-01 through 1998-09-01; source ID `msha-controller-operator-history`
- **Inspections:** 51 rows; 2000-01-27 through 2003-06-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 28 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 8 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 10 rows; 2000-05-31 through 2002-02-26; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 19 rows; 2000-05-31 through 2002-07-31; source ID `msha-quartz-samples`
- **Violations:** 164 rows; 2000-01-27 through 2003-05-20; 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/mine-no-20-1518098`
- JSON: `/api/v1/mines/mine-no-20-1518098`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1518098/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1518098/relationships`
- MCP resource: `mine://1518098/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`