# Pine Mountain Stone

- **MSHA mine ID:** 1500056
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Letcher, KY
- **Operator:** Mountain Aggregates, Inc
- **Controller:** CRH PLC
- **Public source rows linked:** 3,398
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → Mountain Aggregates, Inc (0067904) → Pine Mountain Stone (1500056)**

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

## Controller and operator valid-time history

- **Stuart H  Adams → Adams Stone Corp:** 1950-01-01 through 1992-06-30; derived from co-tenure at mine 1500056; source `msha-controller-operator-history`.
- **Steve L  Lawson et al → Pine Mountain Stone LLC:** 1992-07-01 through 2006-01-22; derived from co-tenure at mine 1500056; source `msha-controller-operator-history`.
- **CRH PLC → Mountain Aggregates, Inc:** 2006-01-23 through current/open; derived from co-tenure at mine 1500056; 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 — 3 since 2021:** Accidents and injuries 18 historical accident/injury rows; 0 coded fatalities and 489 lost days across the published record.
2. **COMPLIANCE — 85 since 2021:** Violations and penalties 293 violation rows across the full record; 112 carry an S&S flag and $226,791 appears in current assessed amounts.
3. **HEALTH — 43 samples:** Occupational health samples 43 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 13K employee hours and 22 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 78 linked rows:** Contests, conferences and decisions 38 contested-violation rows, 36 civil-penalty docket/decision rows, and 4 conference records linked by issuance number.
6. **CONTRACTORS — 14 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 — 25 since 2021:** Inspections 109 inspection events and 3K 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 56.9315 — Dust control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9315
- **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 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **30 CFR 56.11001 — Safe access.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.14101 — Brakes.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 56.20003 — 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

- **Accident, Injuries, and Illnesses:** 18 rows; 2001-01-26 through 2025-04-18; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1976-07-04 through 1976-07-04; source ID `msha-addresses`
- **Assessed Violations:** 287 rows; 2000-08-08 through 2026-08-24; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 36 rows; 2006-09-14 through 2026-01-22; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 4 rows; 2005-11-06 through 2007-07-02; source ID `msha-conferences`
- **Contested Violations:** 38 rows; 2005-10-17 through 2025-03-18; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,766 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 400 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 2006-01-23; source ID `msha-controller-operator-history`
- **Inspections:** 109 rows; 2000-01-31 through 2026-08-24; 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:** 43 rows; 2001-08-15 through 2026-08-25; source ID `msha-personal-health-samples`
- **Violations:** 293 rows; 2000-08-08 through 2026-08-24; 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/pine-mountain-stone-1500056`
- JSON: `/api/v1/mines/pine-mountain-stone-1500056`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1500056/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1500056/relationships`
- MCP resource: `mine://1500056/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`