# Seattle Plant

- **MSHA mine ID:** 4500805
- **Status:** Abandoned
- **Type / commodity:** Facility / Cement
- **Location:** King, WA
- **Operator:** Lafarge North America Inc
- **Controller:** Holcim Ltd
- **Public source rows linked:** 3,124
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Holcim Ltd (0119681) → Lafarge North America Inc (L18663) → Seattle Plant (4500805)**

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

## Controller and operator valid-time history

- **Ideal Basic Industries Inc → Ideal Basic Industries-Cement Division:** 1950-01-01 through 1989-06-15; derived from co-tenure at mine 4500805; source `msha-controller-operator-history`.
- **Holcim Ltd → Holnam Inc:** 1989-06-16 through 1998-10-15; derived from co-tenure at mine 4500805; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge Corp:** 1998-10-16 through 2002-04-10; derived from co-tenure at mine 4500805; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge North America Inc:** 2002-04-11 through 2015-07-09; derived from co-tenure at mine 4500805; source `msha-controller-operator-history`.
- **Holcim Ltd → Lafarge North America Inc:** 2015-07-10 through current/open; derived from co-tenure at mine 4500805; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- 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 121 historical accident/injury rows; 0 coded fatalities and 711 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 758 violation rows across the full record; 197 carry an S&S flag and $335,574 appears in current assessed amounts.
3. **HEALTH — 57 samples:** Occupational health samples 57 personal. 3 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 10 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 243 linked rows:** Contests, conferences and decisions 89 contested-violation rows, 101 civil-penalty docket/decision rows, and 53 conference records linked by issuance number.
6. **CONTRACTORS — 11 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 — 0 since 2021:** Inspections 106 inspection events and 4K 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 46.7 — New task training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **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 56.11002 — Handrails and toeboards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.4603 — Closure of valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4603
- **30 CFR 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 121 rows; 2000-03-19 through 2019-10-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-01-17 through 2020-01-17; source ID `msha-addresses`
- **Assessed Violations:** 752 rows; 2000-01-11 through 2019-10-21; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 101 rows; 2003-10-16 through 2019-10-08; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 53 rows; 2001-11-14 through 2019-09-18; source ID `msha-conferences`
- **Contested Violations:** 89 rows; 2004-08-31 through 2019-01-16; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 696 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 185 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2002-04-11; source ID `msha-controller-operator-history`
- **Inspections:** 106 rows; 2000-01-11 through 2020-01-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 159 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 40 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:** 57 rows; 2002-01-04 through 2019-01-24; source ID `msha-personal-health-samples`
- **Violations:** 758 rows; 2000-01-11 through 2019-10-21; 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/seattle-plant-4500805`
- JSON: `/api/v1/mines/seattle-plant-4500805`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4500805/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4500805/relationships`
- MCP resource: `mine://4500805/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`