# CHM 10

- **MSHA mine ID:** 1519187
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Whitley, KY
- **Operator:** Contract Highwall Mining LLC
- **Controller:** F D  Justice II; Greg  Henzman
- **Public source rows linked:** 825
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**F D  Justice II; Greg  Henzman (0042775) → Contract Highwall Mining LLC (0051979) → CHM 10 (1519187)**

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

## Controller and operator valid-time history

- **F D  Justice II  et al → Contract Highwall Mining LLC:** 2008-03-25 through current/open; derived from co-tenure at mine 1519187; source `msha-controller-operator-history`.
- **Greg  Henzman  et al → Contract Highwall Mining LLC:** 2008-03-25 through current/open; derived from co-tenure at mine 1519187; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 4
- 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 1 historical accident/injury rows; 0 coded fatalities and 88 lost days across the published record.
2. **COMPLIANCE — 33 since 2021:** Violations and penalties 136 violation rows across the full record; 22 carry an S&S flag and $28,713 appears in current assessed amounts.
3. **HEALTH — 287 samples:** Occupational health samples 153 coal dust; 10 coal quartz; 124 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 — 19K tons:** Quarterly production and employment 2K employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 29 linked rows:** Contests, conferences and decisions 14 contested-violation rows, 14 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 19 since 2021:** Inspections 73 inspection events and 2K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 196,776 short tons
- **Labor hours:** 20,991
- **Average employees:** 8
- **Coal supply region:** Appalachia Central
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.1104 — Accumulations of combustible materials.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104
- **30 CFR 77.602 — Permanent splicing of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-G/section-77.602
- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **30 CFR 72.100 — Periodic examinations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-B/section-72.100
- **30 CFR 77.1000 — Highwalls, pits and spoil banks; plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-K/section-77.1000
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 77.604 — Protection of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-G/section-77.604
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 77.512 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.512

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2020-01-07 through 2020-01-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2023-08-28 through 2023-08-28; source ID `msha-addresses`
- **Assessed Violations:** 132 rows; 2008-06-03 through 2026-07-30; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 14 rows; 2011-07-02 through 2023-03-10; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 153 rows; 2008-06-10 through 2026-07-30; source ID `msha-coal-dust-samples`
- **Conferences:** 1 rows; 2009-12-09 through 2009-12-09; source ID `msha-conferences`
- **Contested Violations:** 14 rows; 2010-09-13 through 2022-08-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 42 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 15 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 2008-03-25 through 2008-03-25; source ID `msha-controller-operator-history`
- **Inspections:** 73 rows; 2008-06-03 through 2026-07-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 87 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 19 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 124 rows; 2008-06-10 through 2026-07-30; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 10 rows; 2016-03-08 through 2023-04-25; source ID `msha-quartz-samples`
- **Violations:** 136 rows; 2008-06-03 through 2026-07-30; 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/chm-10-1519187`
- JSON: `/api/v1/mines/chm-10-1519187`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1519187/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1519187/relationships`
- MCP resource: `mine://1519187/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`