# Walls Materials Plant 2

- **MSHA mine ID:** 3301384
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Darke, OH
- **Operator:** Walls Materials
- **Controller:** Jacqueline J  Alf; James P  Jurgensen II; Jason R  Jurgensen
- **Public source rows linked:** 665
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Jacqueline J  Alf; James P  Jurgensen II; Jason R  Jurgensen (0142503) → Walls Materials (L12945) → Walls Materials Plant 2 (3301384)**

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

## Controller and operator valid-time history

- **American Aggregates Corp → American Aggregates Corp:** 1950-01-01 through 1987-02-28; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.
- **Consolidated Gold Fields Limited → American Aggregates Corp:** 1987-03-01 through 1989-08-09; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.
- **Hanson PLC → American Aggregates Corp:** 1989-08-10 through 1990-02-01; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.
- **CSR Ltd → American Aggregates Corp:** 1990-02-02 through 1997-04-01; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.
- **James P  Jurgensen → Walls Materials:** 1997-04-02 through 2024-10-02; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.
- **Jacqueline J  Alf et al → Walls Materials:** 2024-10-03 through current/open; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.
- **Jason R  Jurgensen et al → Walls Materials:** 2024-10-03 through current/open; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.
- **James P  Jurgensen II et al → Walls Materials:** 2024-10-03 through current/open; derived from co-tenure at mine 3301384; source `msha-controller-operator-history`.

- History rows: 8
- Typed edges: 19
- 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 10 historical accident/injury rows; 0 coded fatalities and 244 lost days across the published record.
2. **COMPLIANCE — 2 since 2021:** Violations and penalties 65 violation rows across the full record; 19 carry an S&S flag and $7,099 appears in current assessed amounts.
3. **HEALTH — 22 samples:** Occupational health samples 22 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 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 16 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 8 civil-penalty docket/decision rows, and 2 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 — 12 since 2021:** Inspections 56 inspection events and 843 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 56.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12019
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 56.12035 — Weatherproof lamp sockets.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12035
- **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 56.14107 — 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 56.3401 — Examination of ground conditions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3401
- **30 CFR 56.3200 — Correction of hazardous conditions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3200
- **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 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 10 rows; 2000-06-27 through 2024-04-29; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-10-07 through 2025-10-07; source ID `msha-addresses`
- **Assessed Violations:** 64 rows; 2000-07-31 through 2022-03-07; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2001-02-28 through 2012-06-27; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2004-06-22 through 2004-10-19; source ID `msha-conferences`
- **Contested Violations:** 6 rows; 2004-06-08 through 2011-07-12; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 145 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 36 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 8 rows; 1950-01-01 through 1997-04-02; source ID `msha-controller-operator-history`
- **Inspections:** 56 rows; 2000-07-29 through 2026-10-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 206 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 35 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:** 22 rows; 2002-04-24 through 2026-06-23; source ID `msha-personal-health-samples`
- **Violations:** 65 rows; 2000-07-29 through 2022-03-07; 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/walls-materials-plant-2-3301384`
- JSON: `/api/v1/mines/walls-materials-plant-2-3301384`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3301384/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3301384/relationships`
- MCP resource: `mine://3301384/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`