# Pounding Mill Plant

- **MSHA mine ID:** 4400095
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Tazewell, VA
- **Operator:** Appalachian Aggregates, LLC
- **Controller:** CRH PLC
- **Public source rows linked:** 2,218
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → Appalachian Aggregates, LLC (L12054) → Pounding Mill Plant (4400095)**

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

## Controller and operator valid-time history

- **William C Hunter et al → Pounding Mill Quarry Corp:** 1950-01-01 through 2018-07-19; derived from co-tenure at mine 4400095; source `msha-controller-operator-history`.
- **C Mike  Hunter Jr et al → Pounding Mill Quarry Corp:** 1950-01-01 through 2018-07-19; derived from co-tenure at mine 4400095; source `msha-controller-operator-history`.
- **Boxley Materials Co → Appalachian Aggregates, LLC:** 2018-07-20 through 2015-12-31; derived from co-tenure at mine 4400095; source `msha-controller-operator-history`.
- **CRH PLC → Appalachian Aggregates, LLC:** 2018-07-20 through current/open; derived from co-tenure at mine 4400095; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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 26 historical accident/injury rows; 0 coded fatalities and 537 lost days across the published record.
2. **COMPLIANCE — 32 since 2021:** Violations and penalties 242 violation rows across the full record; 55 carry an S&S flag and $58,482 appears in current assessed amounts.
3. **HEALTH — 58 samples:** Occupational health samples 58 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 6K employee hours and 12 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 11 linked rows:** Contests, conferences and decisions 5 contested-violation rows, 5 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 9 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 — 13 since 2021:** Inspections 82 inspection events and 2K 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 56.14100 — Safety defects; examination, correction and records.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.12008 — 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 56.4130 — Electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4130
- **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 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **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 56.11001 — 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

- **Accident, Injuries, and Illnesses:** 26 rows; 2000-03-10 through 2020-08-18; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1978-08-15 through 1978-08-15; source ID `msha-addresses`
- **Assessed Violations:** 239 rows; 2000-04-18 through 2026-03-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2010-07-30 through 2019-05-03; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2018-11-15 through 2018-11-15; source ID `msha-conferences`
- **Contested Violations:** 5 rows; 2009-09-25 through 2018-09-19; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 921 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 234 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2018-07-20; source ID `msha-controller-operator-history`
- **Inspections:** 82 rows; 2000-04-18 through 2026-08-11; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 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:** 58 rows; 2000-12-06 through 2026-03-24; source ID `msha-personal-health-samples`
- **Violations:** 242 rows; 2000-04-18 through 2026-08-18; 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/pounding-mill-plant-4400095`
- JSON: `/api/v1/mines/pounding-mill-plant-4400095`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4400095/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4400095/relationships`
- MCP resource: `mine://4400095/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`