# Centerville Shop

- **MSHA mine ID:** 1302357
- **Status:** Abandoned
- **Type / commodity:** Facility / Crushed, Broken Limestone NEC
- **Location:** Appanoose, IA
- **Operator:** L & W Quarries, Inc.
- **Controller:** Rasmussen Group Inc
- **Public source rows linked:** 152
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Rasmussen Group Inc (M12677) → L & W Quarries, Inc. (L12248) → Centerville Shop (1302357)**

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

## Controller and operator valid-time history

- **Johnson Holding Company → L & W Quarries, Inc.:** 2008-01-08 through 2024-04-18; derived from co-tenure at mine 1302357; source `msha-controller-operator-history`.
- **Rasmussen Group Inc → L & W Quarries, Inc.:** 2024-04-19 through current/open; derived from co-tenure at mine 1302357; 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 — 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 24 violation rows across the full record; 3 carry an S&S flag and $2,903 appears in current assessed amounts.
3. **HEALTH — 17 samples:** Occupational health samples 17 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 — 12 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 6 civil-penalty docket/decision rows, and 0 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 23 inspection events and 234 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 56.12004 — 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 56.14100 — 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 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025
- **30 CFR 56.20003 — Housekeeping.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4601
- **30 CFR 47.51 — Requirement for an MSDS.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-F/section-47.51

## Source coverage

- **Addresses of Record:** 1 rows; 2017-04-10 through 2017-04-10; source ID `msha-addresses`
- **Assessed Violations:** 24 rows; 2008-01-08 through 2016-05-31; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2009-04-27 through 2009-04-27; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 6 rows; 2008-01-08 through 2008-01-08; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 2008-01-08 through 2008-01-08; source ID `msha-controller-operator-history`
- **Inspections:** 23 rows; 2008-01-08 through 2017-03-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 37 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 11 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:** 17 rows; 2010-02-24 through 2014-01-08; source ID `msha-personal-health-samples`
- **Violations:** 24 rows; 2008-01-08 through 2016-05-31; 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/centerville-shop-1302357`
- JSON: `/api/v1/mines/centerville-shop-1302357`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1302357/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1302357/relationships`
- MCP resource: `mine://1302357/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`