# Portable Crusher #1

- **MSHA mine ID:** 1001634
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Ada, ID
- **Operator:** Western Construction Inc
- **Controller:** Steven C  Heaton
- **Public source rows linked:** 460
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Steven C  Heaton (0190081) → Western Construction Inc (L02270) → Portable Crusher #1 (1001634)**

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

## Controller and operator valid-time history

- **Richard J  Heaton → Western Construction Inc:** 1984-03-01 through 2024-09-09; derived from co-tenure at mine 1001634; source `msha-controller-operator-history`.
- **Steven C  Heaton → Western Construction Inc:** 2024-09-10 through current/open; derived from co-tenure at mine 1001634; 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 — 4 since 2021:** Accidents and injuries 12 historical accident/injury rows; 0 coded fatalities and 102 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 93 violation rows across the full record; 26 carry an S&S flag and $27,628 appears in current assessed amounts.
3. **HEALTH — 19 samples:** Occupational health samples 19 personal. 2 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 3K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 20 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 14 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 — 5 since 2021:** Inspections 42 inspection events and 657 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 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **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 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **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 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.11027 — Scaffolds and working platforms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11027
- **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 56.14132 — 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 56.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12019
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 12 rows; 2000-10-02 through 2025-04-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-01-23 through 2025-01-23; source ID `msha-addresses`
- **Assessed Violations:** 93 rows; 2000-10-30 through 2025-07-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2007-08-06 through 2015-04-20; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 14 rows; 2010-02-11 through 2017-05-08; source ID `msha-conferences`
- **Contested Violations:** 3 rows; 2007-01-03 through 2014-01-28; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1984-03-01 through 1984-03-01; source ID `msha-controller-operator-history`
- **Inspections:** 42 rows; 2000-10-30 through 2026-03-30; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 148 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 27 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:** 19 rows; 2002-05-15 through 2016-06-07; source ID `msha-personal-health-samples`
- **Violations:** 93 rows; 2000-10-30 through 2025-07-16; 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-1-1001634`
- JSON: `/api/v1/mines/portable-crusher-1-1001634`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1001634/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1001634/relationships`
- MCP resource: `mine://1001634/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`