# PORTABLE CRUSHER

- **MSHA mine ID:** 2401007
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Cascade, MT
- **Operator:** United Materials Of Great Falls Inc
- **Controller:** Lonnie  Anderson
- **Public source rows linked:** 745
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Lonnie  Anderson (0166301) → United Materials Of Great Falls Inc (L10469) → PORTABLE CRUSHER (2401007)**

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

## Controller and operator valid-time history

- **United Companies → Northern Materials Company:** 1950-01-01 through 1982-12-31; derived from co-tenure at mine 2401007; source `msha-controller-operator-history`.
- **Paul M  Foster → United Materials Of Great Falls Inc:** 1983-01-01 through 1987-12-31; derived from co-tenure at mine 2401007; source `msha-controller-operator-history`.
- **Robert B  McIntyre → United Materials Of Great Falls Inc:** 1988-01-01 through 2022-01-18; derived from co-tenure at mine 2401007; source `msha-controller-operator-history`.
- **Lonnie  Anderson → United Materials Of Great Falls Inc:** 2022-01-19 through current/open; derived from co-tenure at mine 2401007; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- 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 2 historical accident/injury rows; 0 coded fatalities and 1 lost days across the published record.
2. **COMPLIANCE — 16 since 2021:** Violations and penalties 162 violation rows across the full record; 39 carry an S&S flag and $33,110 appears in current assessed amounts.
3. **HEALTH — 23 samples:** Occupational health samples 23 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 5K employee hours and 10 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 40 linked rows:** Contests, conferences and decisions 14 contested-violation rows, 14 civil-penalty docket/decision rows, and 12 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 10 since 2021:** Inspections 57 inspection events and 854 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 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 56.16003 — Storage of hazardous materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16003
- **30 CFR 56.12028 — Testing grounding systems.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2016-05-10 through 2025-07-01; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-11-12 through 2024-11-12; source ID `msha-addresses`
- **Assessed Violations:** 160 rows; 2000-10-11 through 2025-10-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 14 rows; 2014-04-14 through 2018-06-06; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 12 rows; 2001-05-09 through 2017-05-11; source ID `msha-conferences`
- **Contested Violations:** 14 rows; 2012-06-05 through 2018-02-06; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 28 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 5 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1988-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 57 rows; 2000-02-23 through 2026-08-31; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 208 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 23 rows; 2000-10-11 through 2026-09-01; source ID `msha-personal-health-samples`
- **Violations:** 162 rows; 2000-10-11 through 2025-10-15; 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-2401007`
- JSON: `/api/v1/mines/portable-crusher-2401007`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2401007/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2401007/relationships`
- MCP resource: `mine://2401007/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`