# BELGRADE QUARRY

- **MSHA mine ID:** 3100064
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Onslow, NC
- **Operator:** Martin Marietta Materials Inc
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 1,399
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Materials Inc (L16197) → BELGRADE QUARRY (3100064)**

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

## Controller and operator valid-time history

- **Martin Marietta Materials Inc → Martin Marietta Aggregates:** 1950-01-01 through 2005-06-30; derived from co-tenure at mine 3100064; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials Inc:** 2005-07-01 through current/open; derived from co-tenure at mine 3100064; 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 — 1 since 2021:** Accidents and injuries 3 historical accident/injury rows; 0 coded fatalities and 16 lost days across the published record.
2. **COMPLIANCE — 2 since 2021:** Violations and penalties 49 violation rows across the full record; 7 carry an S&S flag and $6,431 appears in current assessed amounts.
3. **HEALTH — 33 samples:** Occupational health samples 33 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 10K employee hours and 21 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 8 linked rows:** Contests, conferences and decisions 4 contested-violation rows, 4 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 6 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 — 12 since 2021:** Inspections 70 inspection events and 1K 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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 56.4402 — Safety can use.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **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 56.11003 — 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 3 rows; 2003-05-16 through 2021-09-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1976-07-04 through 1976-07-04; source ID `msha-addresses`
- **Assessed Violations:** 49 rows; 2000-02-08 through 2022-10-12; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 4 rows; 2014-04-28 through 2017-09-08; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 4 rows; 2013-07-30 through 2016-11-15; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 641 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 143 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 2005-07-01; source ID `msha-controller-operator-history`
- **Inspections:** 70 rows; 2000-02-08 through 2026-05-04; 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:** 33 rows; 2001-03-20 through 2025-10-28; source ID `msha-personal-health-samples`
- **Violations:** 49 rows; 2000-02-08 through 2022-10-12; 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/belgrade-quarry-3100064`
- JSON: `/api/v1/mines/belgrade-quarry-3100064`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3100064/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3100064/relationships`
- MCP resource: `mine://3100064/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`