# Portable Crusher No. 1

- **MSHA mine ID:** 0203387
- **Status:** Active
- **Type / commodity:** Surface / Iron Ore
- **Location:** La Paz, AZ
- **Operator:** Rango Inc.
- **Controller:** Rodney W  George; Timothy  Rosengren
- **Public source rows linked:** 55
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Rodney W  George; Timothy  Rosengren (0138763) → Rango Inc. (0155455) → Portable Crusher No. 1 (0203387)**

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

## Controller and operator valid-time history

- **Rodney W  George et al → Rango Inc.:** 2017-10-12 through current/open; derived from co-tenure at mine 0203387; source `msha-controller-operator-history`.
- **Timothy  Rosengren et al → Rango Inc.:** 2017-10-12 through current/open; derived from co-tenure at mine 0203387; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 4
- 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 — 1 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 7 lost days across the published record.
2. **COMPLIANCE — 6 since 2021:** Violations and penalties 8 violation rows across the full record; 2 carry an S&S flag and $986 appears in current assessed amounts.
3. **HEALTH — 4 samples:** Occupational health samples 4 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 4K employee hours and 12 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 — 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 — 8 since 2021:** Inspections 11 inspection events and 98 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 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **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 56.16005 — Securing gas cylinders.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **30 CFR 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **30 CFR 56.1000 — Notification of commencement of operations and closing of mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **30 CFR 41.11 — Notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.11

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2026-04-08 through 2026-04-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-10-24 through 2025-10-24; source ID `msha-addresses`
- **Assessed Violations:** 7 rows; 2018-02-06 through 2026-03-10; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2025-04-21 through 2025-04-21; source ID `msha-conferences`
- **Controller and Operator History:** 2 rows; 2017-10-12 through 2017-10-12; source ID `msha-controller-operator-history`
- **Inspections:** 11 rows; 2018-02-06 through 2026-08-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 15 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 4 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:** 4 rows; 2018-05-01 through 2018-05-01; source ID `msha-personal-health-samples`
- **Violations:** 8 rows; 2018-02-06 through 2026-03-10; 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-no-1-0203387`
- JSON: `/api/v1/mines/portable-crusher-no-1-0203387`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0203387/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0203387/relationships`
- MCP resource: `mine://0203387/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`