# CAM HIGHWALL MINER

- **MSHA mine ID:** 4609545
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Mingo, WV
- **Operator:** APPALACHIAN RESOURCE WEST VIRGINIA, LLC
- **Controller:** Appalachian Resource Company LLC
- **Public source rows linked:** 1,055
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Appalachian Resource Company LLC (0157781) → APPALACHIAN RESOURCE WEST VIRGINIA, LLC (0173033) → CAM HIGHWALL MINER (4609545)**

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

## Controller and operator valid-time history

- **Wexford Capital LLC → CAM Mining LLC:** 2017-10-23 through 2010-10-04; derived from co-tenure at mine 4609545; source `msha-controller-operator-history`.
- **Rhino Resource Partners LP → CAM Mining LLC:** 2017-10-23 through 2020-08-31; derived from co-tenure at mine 4609545; source `msha-controller-operator-history`.
- **Appalachian Resource Company LLC → Appalachian Resource West Virginia, LLC:** 2020-09-01 through current/open; derived from co-tenure at mine 4609545; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- Interval anomalies: 1
- 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 — 4 since 2021:** Accidents and injuries 5 historical accident/injury rows; 0 coded fatalities and 276 lost days across the published record.
2. **COMPLIANCE — 93 since 2021:** Violations and penalties 111 violation rows across the full record; 24 carry an S&S flag and $43,005 appears in current assessed amounts.
3. **HEALTH — 139 samples:** Occupational health samples 94 coal dust; 45 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 — 14K tons:** Quarterly production and employment 5K employee hours and 5 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 35 linked rows:** Contests, conferences and decisions 16 contested-violation rows, 16 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 21 since 2021:** Inspections 28 inspection events and 857 published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 82,880 short tons
- **Labor hours:** 13,710
- **Average employees:** 6
- **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 77.1607 — Loading and haulage equipment; operation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1607
- **30 CFR 77.1104 — Accumulations of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104
- **30 CFR 71.500 — Sanitary toilet facilities at surface work sites; installation requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-F/section-71.500
- **30 CFR 77.205 — Travelways at surface installations.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 48.29 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.29
- **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 77.400 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400
- **30 CFR 77.504 — Electrical connections or splices; suitability.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.504
- **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 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2018-01-09 through 2026-05-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-05-05 through 2020-05-05; source ID `msha-addresses`
- **Assessed Violations:** 108 rows; 2018-06-19 through 2026-07-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 16 rows; 2022-11-17 through 2026-06-16; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 94 rows; 2018-03-20 through 2026-07-29; source ID `msha-coal-dust-samples`
- **Conferences:** 3 rows; 2026-02-09 through 2026-03-02; source ID `msha-conferences`
- **Contested Violations:** 16 rows; 2022-05-24 through 2026-01-29; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 455 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 86 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2017-10-23 through 2020-09-01; source ID `msha-controller-operator-history`
- **Inspections:** 28 rows; 2018-02-27 through 2026-09-21; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 68 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 15 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 45 rows; 2018-06-19 through 2026-01-29; source ID `msha-noise-samples`
- **Violations:** 111 rows; 2018-06-19 through 2026-09-21; 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/cam-highwall-miner-4609545`
- JSON: `/api/v1/mines/cam-highwall-miner-4609545`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609545/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609545/relationships`
- MCP resource: `mine://4609545/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`