# Portable Crusher

- **MSHA mine ID:** 2401400
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Fergus, MT
- **Operator:** Casino Creek Concrete Inc
- **Controller:** Andrew J  Mathison
- **Public source rows linked:** 416
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Andrew J  Mathison (M07307) → Casino Creek Concrete Inc (L09288) → Portable Crusher (2401400)**

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

## Controller and operator valid-time history

- **Tindall Robert → Robert Tindall Contractor:** 1950-01-01 through 1979-04-30; derived from co-tenure at mine 2401400; source `msha-controller-operator-history`.
- **Guy R  Tindall → Casino Creek Concrete:** 1979-05-01 through 1985-10-31; derived from co-tenure at mine 2401400; source `msha-controller-operator-history`.
- **Andrew J  Mathison → Casino Creek Concrete Inc:** 1985-11-01 through current/open; derived from co-tenure at mine 2401400; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 9
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 51 violation rows across the full record; 8 carry an S&S flag and $4,658 appears in current assessed amounts.
3. **HEALTH — 12 samples:** Occupational health samples 12 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 2K employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 15 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 9 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 41 inspection events and 470 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 56.4200 — General requirements.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104
- **30 CFR 56.1000 — Notification of commencement of operations and closing of mines.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.20008 — Toilet facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20008
- **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 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001

## Source coverage

- **Addresses of Record:** 1 rows; 2024-11-12 through 2024-11-12; source ID `msha-addresses`
- **Assessed Violations:** 51 rows; 2000-09-07 through 2020-09-10; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2006-05-23 through 2014-04-11; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 9 rows; 2001-05-22 through 2008-05-16; source ID `msha-conferences`
- **Contested Violations:** 3 rows; 2005-10-18 through 2013-06-25; source ID `msha-contested-violations`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 1985-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 41 rows; 2000-09-07 through 2026-08-19; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 197 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 44 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:** 12 rows; 2001-05-09 through 2019-06-11; source ID `msha-personal-health-samples`
- **Violations:** 51 rows; 2000-09-07 through 2020-09-10; 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-2401400`
- JSON: `/api/v1/mines/portable-crusher-2401400`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2401400/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2401400/relationships`
- MCP resource: `mine://2401400/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`