# Endeavor Surface Mine

- **MSHA mine ID:** 4609309
- **Status:** NonProducing
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Boone, WV
- **Operator:** Potomac North Inc
- **Controller:** Justin L Simmons; Alexander J Woods
- **Public source rows linked:** 2,316
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Justin L Simmons; Alexander J Woods (0162541) → Potomac North Inc (0165314) → Endeavor Surface Mine (4609309)**

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

## Controller and operator valid-time history

- **Magnum Coal Company → Hobet Mining LLC:** 2008-10-16 through 2008-07-22; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Patriot Coal Corporation → Hobet Mining LLC:** 2008-10-16 through 2015-10-27; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Virginia Conservation Legacy Fund (VCLF) → ERP Environmental Fund Inc.:** 2015-10-28 through 2017-01-25; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Kissito Healthcare Inc → ERP Environmental Fund Inc.:** 2017-01-26 through 2018-12-31; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Virginia Conservation Legacy Fund (VCLF) → ERP Environmental Fund Inc.:** 2019-01-01 through 2022-04-12; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Curtis  Layman et al → Potomac North Inc:** 2022-04-13 through 2021-03-11; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Jannette  Layman et al → Potomac North Inc:** 2022-04-13 through 2021-03-11; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Justin L Simmons et al → Potomac North Inc:** 2022-04-13 through current/open; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.
- **Alexander J Woods et al → Potomac North Inc:** 2022-04-13 through current/open; derived from co-tenure at mine 4609309; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 19
- Interval anomalies: 3
- 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 — 1 since 2021:** Accidents and injuries 12 historical accident/injury rows; 0 coded fatalities and 932 lost days across the published record.
2. **COMPLIANCE — 15 since 2021:** Violations and penalties 94 violation rows across the full record; 52 carry an S&S flag and $34,823 appears in current assessed amounts.
3. **HEALTH — 184 samples:** Occupational health samples 135 coal dust; 6 coal quartz; 43 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 — 7 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 10 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 — 15 since 2021:** Inspections 61 inspection events and 2K 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 77.404 — 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 77.1001 — Stripping; loose material.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-K/section-77.1001
- **30 CFR 77.1104 — Accumulations of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104
- **30 CFR 71.402 — Minimum requirements for bathing facilities, change rooms, and sanitary flush toilet facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.402
- **30 CFR 45.4 — Independent contractor register.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-45/section-45.4
- **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 77.1606 — 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 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 12 rows; 2009-08-07 through 2022-09-19; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2023-05-16 through 2023-05-16; source ID `msha-addresses`
- **Assessed Violations:** 93 rows; 2008-11-03 through 2022-12-20; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2012-04-26 through 2023-12-04; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 135 rows; 2009-04-28 through 2023-03-17; source ID `msha-coal-dust-samples`
- **Conferences:** 1 rows; 2017-01-26 through 2017-01-26; source ID `msha-conferences`
- **Contested Violations:** 3 rows; 2010-03-31 through 2022-11-04; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,365 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 324 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 2008-10-16 through 2022-04-13; source ID `msha-controller-operator-history`
- **Inspections:** 61 rows; 2008-10-30 through 2026-05-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 142 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 23 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 43 rows; 2009-04-28 through 2022-08-04; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 6 rows; 2016-11-17 through 2023-02-03; source ID `msha-quartz-samples`
- **Violations:** 94 rows; 2008-11-03 through 2023-01-10; 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/endeavor-surface-mine-4609309`
- JSON: `/api/v1/mines/endeavor-surface-mine-4609309`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609309/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609309/relationships`
- MCP resource: `mine://4609309/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`