# Pacific Quarry

- **MSHA mine ID:** 4500844
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Skagit, WA
- **Operator:** Martin Marietta Materials
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 384
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Materials (L16197) → Pacific Quarry (4500844)**

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

## Controller and operator valid-time history

- **Michael G  Brown → Pacific Quarries Inc:** 1950-01-01 through 1987-12-07; derived from co-tenure at mine 4500844; source `msha-controller-operator-history`.
- **Burlington Resources Inc → Meridian Aggregates Company:** 1987-12-08 through 1991-02-28; derived from co-tenure at mine 4500844; source `msha-controller-operator-history`.
- **Meridian Aggregates Company LP → Meridian Aggregates Company:** 1991-03-01 through 2001-04-02; derived from co-tenure at mine 4500844; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Meridian Aggregates Company LP:** 2001-04-03 through 2008-12-31; derived from co-tenure at mine 4500844; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials:** 2009-01-01 through current/open; derived from co-tenure at mine 4500844; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 15
- 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 — 1 since 2021:** Accidents and injuries 8 historical accident/injury rows; 0 coded fatalities and 52 lost days across the published record.
2. **COMPLIANCE — 17 since 2021:** Violations and penalties 92 violation rows across the full record; 20 carry an S&S flag and $22,056 appears in current assessed amounts.
3. **HEALTH — 23 samples:** Occupational health samples 23 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 9K employee hours and 15 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 19 linked rows:** Contests, conferences and decisions 5 contested-violation rows, 5 civil-penalty docket/decision rows, and 9 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 — 14 since 2021:** Inspections 65 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 56.20003 — Housekeeping.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.15005 — Safety belts and lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025
- **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 56.14110 — Flying or falling materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14110
- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001

## Source coverage

- **Accident, Injuries, and Illnesses:** 8 rows; 2000-01-31 through 2024-09-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-05-27 through 2020-05-27; source ID `msha-addresses`
- **Assessed Violations:** 92 rows; 2001-02-22 through 2025-11-19; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2011-06-02 through 2024-06-20; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 9 rows; 2001-03-01 through 2006-11-27; source ID `msha-conferences`
- **Contested Violations:** 5 rows; 2009-12-09 through 2025-11-19; source ID `msha-contested-violations`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2009-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 65 rows; 2001-02-08 through 2026-04-20; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 23 rows; 2002-01-24 through 2026-04-21; source ID `msha-personal-health-samples`
- **Violations:** 92 rows; 2001-02-22 through 2025-11-19; 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/pacific-quarry-4500844`
- JSON: `/api/v1/mines/pacific-quarry-4500844`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4500844/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4500844/relationships`
- MCP resource: `mine://4500844/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`