# Portable Crusher

- **MSHA mine ID:** 4503263
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Columbia, WA
- **Operator:** Konen Rock Crushing Inc
- **Controller:** David M  Konen
- **Public source rows linked:** 675
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**David M  Konen (0100049) → Konen Rock Crushing Inc (L12217) → Portable Crusher (4503263)**

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

## Controller and operator valid-time history

- **Thomas J  Konen → Konen Rock Crushing Inc:** 1992-04-01 through 2018-03-29; derived from co-tenure at mine 4503263; source `msha-controller-operator-history`.
- **David M  Konen → Konen Rock Crushing Inc:** 2018-03-30 through current/open; derived from co-tenure at mine 4503263; 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 — 0 since 2021:** Accidents and injuries 2 historical accident/injury rows; 0 coded fatalities and 14 lost days across the published record.
2. **COMPLIANCE — 29 since 2021:** Violations and penalties 77 violation rows across the full record; 21 carry an S&S flag and $17,032 appears in current assessed amounts.
3. **HEALTH — 17 samples:** Occupational health samples 17 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 880 employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 63 inspection events and 873 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 56.14131 — 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 56.4102 — Spillage and leakage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4102
- **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 56.14103 — Operators stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.12016 — Work on electrically-powered equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12016
- **30 CFR 56.23002 — Written safety program.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-T/section-56.23002
- **30 CFR 56.12005 — Protection of power conductors from mobile equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12005
- **30 CFR 56.9100 — Traffic control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9100
- **30 CFR 46.11 — Site-specific hazard awareness training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.11
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2011-05-17 through 2013-10-18; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2011-11-04 through 2011-11-04; source ID `msha-addresses`
- **Assessed Violations:** 77 rows; 2003-08-26 through 2026-04-29; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2008-11-06 through 2008-11-06; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 188 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 48 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1992-04-01 through 1992-04-01; source ID `msha-controller-operator-history`
- **Inspections:** 63 rows; 2000-04-20 through 2026-05-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 161 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 37 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:** 17 rows; 2003-08-27 through 2019-01-09; source ID `msha-personal-health-samples`
- **Violations:** 77 rows; 2003-08-26 through 2026-04-29; 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-4503263`
- JSON: `/api/v1/mines/portable-crusher-4503263`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4503263/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4503263/relationships`
- MCP resource: `mine://4503263/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`