# Thomas Quarry

- **MSHA mine ID:** 4602530
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Sandstone
- **Location:** Tucker, WV
- **Operator:** Fairfax Materials Inc
- **Controller:** Aggregate Management, Inc
- **Public source rows linked:** 781
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Aggregate Management, Inc (M10193) → Fairfax Materials Inc (L17139) → Thomas Quarry (4602530)**

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

## Controller and operator valid-time history

- **Gay C  Roth → Fairfax Sand & Crushed Stone Company:** 1950-01-01 through 1989-05-02; derived from co-tenure at mine 4602530; source `msha-controller-operator-history`.
- **Aggregate Management, Inc → Fairfax Materials Inc:** 1989-05-03 through current/open; derived from co-tenure at mine 4602530; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 — 3 since 2021:** Accidents and injuries 11 historical accident/injury rows; 0 coded fatalities and 144 lost days across the published record.
2. **COMPLIANCE — 13 since 2021:** Violations and penalties 57 violation rows across the full record; 12 carry an S&S flag and $8,578 appears in current assessed amounts.
3. **HEALTH — 63 samples:** Occupational health samples 63 personal. 1 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 6K employee hours and 12 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 6 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 2 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 — 19 since 2021:** Inspections 61 inspection events and 966 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 56.14107 — Moving machine parts.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.5005 — Control of exposure to airborne contaminants.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5005
- **30 CFR 56.5001 — Exposure limits for airborne contaminants.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **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 41.11 — Notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.11
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201

## Source coverage

- **Accident, Injuries, and Illnesses:** 11 rows; 2000-06-06 through 2026-05-28; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-04-01 through 2026-04-01; source ID `msha-addresses`
- **Assessed Violations:** 57 rows; 2000-05-23 through 2024-10-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2013-03-01 through 2013-03-01; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2007-06-20 through 2018-08-16; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2012-05-23 through 2012-05-23; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 103 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 21 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1989-05-03; source ID `msha-controller-operator-history`
- **Inspections:** 61 rows; 2000-05-23 through 2026-10-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 317 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:** 63 rows; 2001-06-27 through 2026-08-10; source ID `msha-personal-health-samples`
- **Violations:** 57 rows; 2000-05-23 through 2024-10-03; 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/thomas-quarry-4602530`
- JSON: `/api/v1/mines/thomas-quarry-4602530`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4602530/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4602530/relationships`
- MCP resource: `mine://4602530/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`