# R. E. SANSOM MINE & MILL

- **MSHA mine ID:** 4405101
- **Status:** Active
- **Type / commodity:** Surface / Vermiculite
- **Location:** Louisa, VA
- **Operator:** Virginia Vermiculite LLC
- **Controller:** Ned  Gumble
- **Public source rows linked:** 1,245
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Ned  Gumble (0082513) → Virginia Vermiculite LLC (L39883) → R. E. SANSOM MINE & MILL (4405101)**

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

## Controller and operator valid-time history

- **Robert  Sansom → Virginia Vermiculite LLC:** 1978-03-09 through 2009-02-11; derived from co-tenure at mine 4405101; source `msha-controller-operator-history`.
- **Ned  Gumble et al → Virginia Vermiculite LLC:** 2009-02-12 through current/open; derived from co-tenure at mine 4405101; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- 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 — 2 since 2021:** Accidents and injuries 24 historical accident/injury rows; 0 coded fatalities and 902 lost days across the published record.
2. **COMPLIANCE — 22 since 2021:** Violations and penalties 137 violation rows across the full record; 22 carry an S&S flag and $18,728 appears in current assessed amounts.
3. **HEALTH — 460 samples:** Occupational health samples 363 personal; 97 area. 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 14K employee hours and 25 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 13 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 4 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 — 11 since 2021:** Inspections 72 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 56.15004 — Eye protection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15004
- **30 CFR 56.11003 — Construction and maintenance of ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11003
- **30 CFR 56.14132 — Horns and backup alarms.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.12016 — Work on electrically-powered equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12016
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100

## Source coverage

- **Accident, Injuries, and Illnesses:** 24 rows; 2000-10-04 through 2026-04-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1983-03-18 through 1983-03-18; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 97 rows; 2016-05-03 through 2024-02-15; source ID `msha-area-samples`
- **Assessed Violations:** 136 rows; 2000-05-23 through 2026-03-18; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 4 rows; 2001-02-27 through 2019-08-23; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2000-09-11 through 2015-04-28; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2019-03-12 through 2019-03-12; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 1978-03-09 through 1978-03-09; source ID `msha-controller-operator-history`
- **Inspections:** 72 rows; 2000-02-14 through 2026-09-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 363 rows; 2001-05-01 through 2026-09-09; source ID `msha-personal-health-samples`
- **Violations:** 137 rows; 2000-05-23 through 2026-09-09; 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/r-e-sansom-mine-mill-4405101`
- JSON: `/api/v1/mines/r-e-sansom-mine-mill-4405101`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4405101/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4405101/relationships`
- MCP resource: `mine://4405101/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`