# #1

- **MSHA mine ID:** 4407362
- **Status:** Temporarily Idled
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Wise, VA
- **Operator:** Ridgetop Development LLC
- **Controller:** Robert S  Toller
- **Public source rows linked:** 542
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Robert S  Toller (0165681) → Ridgetop Development LLC (0142613) → #1 (4407362)**

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

## Controller and operator valid-time history

- **Jeffrey K Mullins et al → Ridgetop Development LLC:** 2015-12-28 through 2017-08-03; derived from co-tenure at mine 4407362; source `msha-controller-operator-history`.
- **Energy, Incorporated et al → Ridgetop Development LLC:** 2015-12-28 through 2017-08-03; derived from co-tenure at mine 4407362; source `msha-controller-operator-history`.
- **WC Ridgetop Holding Inc et al → Ridgetop Development LLC:** 2017-08-04 through 2021-11-30; derived from co-tenure at mine 4407362; source `msha-controller-operator-history`.
- **Energy, Incorporated et al → Ridgetop Development LLC:** 2017-08-04 through 2021-11-30; derived from co-tenure at mine 4407362; source `msha-controller-operator-history`.
- **Robert S  Toller → Ridgetop Development LLC:** 2021-12-01 through current/open; derived from co-tenure at mine 4407362; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 9
- 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 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 62 violation rows across the full record; 24 carry an S&S flag and $21,045 appears in current assessed amounts.
3. **HEALTH — 121 samples:** Occupational health samples 94 coal dust; 7 coal quartz; 20 noise. 0 personal-sample rows have a published C/E ratio above 1; 1 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 — 12 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 6 civil-penalty docket/decision rows, and 0 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 — 4 since 2021:** Inspections 20 inspection events and 668 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 71.206 — Quarterly sampling; designated work positions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-C/section-71.206
- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **30 CFR 77.1110 — Examination and maintenance of firefighting equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.516 — Electric wiring and equipment; installation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.516
- **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 77.208 — Storage of materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.208
- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2016-08-22 through 2016-08-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-11-26 through 2019-11-26; source ID `msha-addresses`
- **Assessed Violations:** 61 rows; 2016-03-16 through 2019-09-17; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2017-12-14 through 2019-04-09; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 94 rows; 2016-03-21 through 2019-03-19; source ID `msha-coal-dust-samples`
- **Contested Violations:** 6 rows; 2017-02-07 through 2018-08-15; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 193 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 37 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 2015-12-28 through 2015-12-28; source ID `msha-controller-operator-history`
- **Inspections:** 20 rows; 2016-01-19 through 2026-07-23; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 25 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 3 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 20 rows; 2016-03-21 through 2019-03-19; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 7 rows; 2016-03-21 through 2018-08-15; source ID `msha-quartz-samples`
- **Violations:** 62 rows; 2016-03-16 through 2019-09-17; 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/1-4407362`
- JSON: `/api/v1/mines/1-4407362`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4407362/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4407362/relationships`
- MCP resource: `mine://4407362/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`