# 543 Crusher

- **MSHA mine ID:** 2101504
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Stearns, MN
- **Operator:** Stommes Construction
- **Controller:** Randy  Stommes
- **Public source rows linked:** 341
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Randy  Stommes (M11670) → Stommes Construction (0121430) → 543 Crusher (2101504)**

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

## Controller and operator valid-time history

- **John H  Stommes → Stommes Construction Inc:** 1981-07-22 through 1997-05-31; derived from co-tenure at mine 2101504; source `msha-controller-operator-history`.
- **James A  Anderson → Anderson Brothers Construction Company:** 1997-05-01 through 1981-07-21; derived from co-tenure at mine 2101504; source `msha-controller-operator-history`.
- **Randy  Stommes → Rjs Inc:** 1997-06-01 through 1999-06-23; derived from co-tenure at mine 2101504; source `msha-controller-operator-history`.
- **John H  Stommes → Stommes Const.:** 1999-06-24 through 2012-02-09; derived from co-tenure at mine 2101504; source `msha-controller-operator-history`.
- **Randy  Stommes → Stommes Construction:** 2012-02-10 through current/open; derived from co-tenure at mine 2101504; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- Interval anomalies: 1
- 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 75 violation rows across the full record; 25 carry an S&S flag and $13,848 appears in current assessed amounts.
3. **HEALTH — 7 samples:** Occupational health samples 7 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 4 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 — 0 since 2021:** Inspections 31 inspection events and 307 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 56.14112 — 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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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
- **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
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.11002 — Handrails and toeboards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **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 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003

## Source coverage

- **Addresses of Record:** 1 rows; 2018-07-24 through 2018-07-24; source ID `msha-addresses`
- **Assessed Violations:** 74 rows; 2002-04-30 through 2016-10-25; source ID `msha-assessed-violations`
- **Conferences:** 4 rows; 2002-06-10 through 2002-06-10; source ID `msha-conferences`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2012-02-10; source ID `msha-controller-operator-history`
- **Inspections:** 31 rows; 2002-04-30 through 2016-10-31; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 121 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 22 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:** 7 rows; 2002-05-01 through 2007-07-10; source ID `msha-personal-health-samples`
- **Violations:** 75 rows; 2002-04-30 through 2016-10-25; 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/543-crusher-2101504`
- JSON: `/api/v1/mines/543-crusher-2101504`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2101504/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2101504/relationships`
- MCP resource: `mine://2101504/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`