# Lefors  Mine

- **MSHA mine ID:** 4104076
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Gray, TX
- **Operator:** Nick Thomas, Inc.
- **Controller:** Nicky R Thomas Sr.
- **Public source rows linked:** 493
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Nicky R Thomas Sr. (0125721) → Nick Thomas, Inc. (0145373) → Lefors  Mine (4104076)**

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

## Controller and operator valid-time history

- **James R  Howell Jr et al → Red River Sand & Gravel:** 1999-05-01 through 2008-02-27; derived from co-tenure at mine 4104076; source `msha-controller-operator-history`.
- **Charles  Emmons et al → Red River Sand & Gravel:** 1999-05-01 through 2008-02-27; derived from co-tenure at mine 4104076; source `msha-controller-operator-history`.
- **Rusty D  Stevens → WTL LLC:** 2008-02-28 through 2016-05-20; derived from co-tenure at mine 4104076; source `msha-controller-operator-history`.
- **Nicky R Thomas Sr. → Nick Thomas, Inc.:** 2016-05-21 through current/open; derived from co-tenure at mine 4104076; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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 12 lost days across the published record.
2. **COMPLIANCE — 5 since 2021:** Violations and penalties 109 violation rows across the full record; 46 carry an S&S flag and $34,607 appears in current assessed amounts.
3. **HEALTH — 5 samples:** Occupational health samples 5 personal. 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 20 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 40 linked rows:** Contests, conferences and decisions 7 contested-violation rows, 7 civil-penalty docket/decision rows, and 26 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 56 inspection events and 687 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 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.14105 — Procedures during repairs or maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14105
- **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
- **30 CFR 56.14206 — Securing movable parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14206
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **30 CFR 56.14201 — Conveyor start-up warnings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14201
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 56.12021 — Danger signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12021
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2011-06-07 through 2011-06-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-02-11 through 2026-02-11; source ID `msha-addresses`
- **Assessed Violations:** 109 rows; 2000-04-05 through 2022-03-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2011-07-13 through 2017-07-28; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 26 rows; 2000-05-22 through 2000-05-22; source ID `msha-conferences`
- **Contested Violations:** 7 rows; 2010-08-25 through 2016-02-23; source ID `msha-contested-violations`
- **Controller and Operator History:** 4 rows; 1999-05-01 through 2016-05-21; source ID `msha-controller-operator-history`
- **Inspections:** 56 rows; 2000-04-05 through 2025-08-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 137 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 30 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:** 5 rows; 2018-01-24 through 2021-01-26; source ID `msha-personal-health-samples`
- **Violations:** 109 rows; 2000-04-05 through 2022-03-09; 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/lefors-mine-4104076`
- JSON: `/api/v1/mines/lefors-mine-4104076`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4104076/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4104076/relationships`
- MCP resource: `mine://4104076/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`