# Portable Crusher

- **MSHA mine ID:** 4503112
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Whitman, WA
- **Operator:** Shawnee Rock Inc
- **Controller:** Mark  Cochran
- **Public source rows linked:** 339
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Mark  Cochran (M38379) → Shawnee Rock Inc (L38379) → Portable Crusher (4503112)**

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

## Controller and operator valid-time history

- **Mark  Cochran → Shawnee Rock Inc:** 1986-11-01 through current/open; derived from co-tenure at mine 4503112; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 10 historical accident/injury rows; 1 coded fatalities and 202 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 62 violation rows across the full record; 18 carry an S&S flag and $69,999 appears in current assessed amounts.
3. **HEALTH — 3 samples:** Occupational health samples 3 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 57 linked rows:** Contests, conferences and decisions 28 contested-violation rows, 28 civil-penalty docket/decision rows, and 1 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 — 0 since 2021:** Inspections 27 inspection events and 510 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 56.16009 — Suspended loads.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16009
- **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 56.14211 — Blocking equipment in a raised position.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14211
- **30 CFR 56.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15004
- **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 46.3 — Training plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.3
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 46.4 — Training plan implementation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.4
- **30 CFR 56.6130 — Explosive material storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-E/section-56.6130

## Source coverage

- **Accident, Injuries, and Illnesses:** 10 rows; 2007-01-05 through 2011-03-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-05-23 through 2013-05-23; source ID `msha-addresses`
- **Assessed Violations:** 61 rows; 2001-09-11 through 2011-03-10; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 28 rows; 2011-01-20 through 2013-04-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2008-03-19 through 2008-03-19; source ID `msha-conferences`
- **Contested Violations:** 28 rows; 2009-12-15 through 2011-03-10; source ID `msha-contested-violations`
- **Controller and Operator History:** 1 rows; 1986-11-01 through 1986-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 27 rows; 2001-05-22 through 2011-03-09; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 95 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 21 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:** 3 rows; 2002-12-04 through 2002-12-04; source ID `msha-personal-health-samples`
- **Violations:** 62 rows; 2001-09-11 through 2011-03-10; 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/portable-crusher-4503112`
- JSON: `/api/v1/mines/portable-crusher-4503112`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4503112/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4503112/relationships`
- MCP resource: `mine://4503112/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`