# Martin Marietta - Fieldale Quarry

- **MSHA mine ID:** 4400074
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Granite
- **Location:** Henry, VA
- **Operator:** Martin Marietta Materials, Inc.
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 1,939
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Materials, Inc. (L16197) → Martin Marietta - Fieldale Quarry (4400074)**

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

## Controller and operator valid-time history

- **Boxley Materials Co → Boxley Materials Company:** 1950-01-01 through 2016-03-20; derived from co-tenure at mine 4400074; source `msha-controller-operator-history`.
- **Summit Materials LLC → Boxley Materials Company:** 2016-03-21 through 2025-02-09; derived from co-tenure at mine 4400074; source `msha-controller-operator-history`.
- **Quikrete Holdings Inc. → Boxley Materials Company:** 2025-02-10 through 2026-03-22; derived from co-tenure at mine 4400074; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials, Inc.:** 2026-03-23 through current/open; derived from co-tenure at mine 4400074; 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 14 historical accident/injury rows; 0 coded fatalities and 154 lost days across the published record.
2. **COMPLIANCE — 31 since 2021:** Violations and penalties 121 violation rows across the full record; 18 carry an S&S flag and $21,457 appears in current assessed amounts.
3. **HEALTH — 41 samples:** Occupational health samples 41 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 19K employee hours and 34 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 11 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.
6. **CONTRACTORS — 12 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 — 13 since 2021:** Inspections 70 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 56.14207 — Parking procedures for unattended equipment.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **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 56.20003 — Housekeeping.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.14131 — Seat belts for haulage trucks.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14131
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **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 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402

## Source coverage

- **Accident, Injuries, and Illnesses:** 14 rows; 2000-11-27 through 2016-01-06; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1973-01-10 through 1973-01-10; source ID `msha-addresses`
- **Assessed Violations:** 113 rows; 2000-02-01 through 2025-05-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2019-12-30 through 2019-12-30; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 9 rows; 2005-09-12 through 2015-07-08; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2019-08-13 through 2019-08-13; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,219 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 231 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2026-03-23; source ID `msha-controller-operator-history`
- **Inspections:** 70 rows; 2000-01-31 through 2026-09-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 32 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:** 41 rows; 2001-04-18 through 2026-09-16; source ID `msha-personal-health-samples`
- **Violations:** 121 rows; 2000-02-01 through 2026-09-15; 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/martin-marietta-fieldale-quarry-4400074`
- JSON: `/api/v1/mines/martin-marietta-fieldale-quarry-4400074`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4400074/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4400074/relationships`
- MCP resource: `mine://4400074/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`