# PRESCOTT QUARRY

- **MSHA mine ID:** 3600039
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Lebanon, PA
- **Operator:** Pennsy Supply Inc
- **Controller:** CRH PLC
- **Public source rows linked:** 1,140
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → Pennsy Supply Inc (L13625) → PRESCOTT QUARRY (3600039)**

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

## Controller and operator valid-time history

- **Iu Industrials Inc → Calcite Quarry Corp:** 1950-01-01 through 1981-10-15; derived from co-tenure at mine 3600039; source `msha-controller-operator-history`.
- **Rangaire Corp → Corson Lime Company:** 1981-10-16 through 1985-12-08; derived from co-tenure at mine 3600039; source `msha-controller-operator-history`.
- **Barbara M  Mumma → Lebanon Rock Inc:** 1985-12-09 through 1993-07-20; derived from co-tenure at mine 3600039; source `msha-controller-operator-history`.
- **CRH PLC → Pennsy Supply Inc:** 1993-07-21 through current/open; derived from co-tenure at mine 3600039; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 12
- 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 — 6 since 2021:** Accidents and injuries 15 historical accident/injury rows; 0 coded fatalities and 10 lost days across the published record.
2. **COMPLIANCE — 29 since 2021:** Violations and penalties 117 violation rows across the full record; 24 carry an S&S flag and $22,915 appears in current assessed amounts.
3. **HEALTH — 36 samples:** Occupational health samples 36 personal. 4 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 16 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 37 linked rows:** Contests, conferences and decisions 18 contested-violation rows, 18 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 — 16 since 2021:** Inspections 71 inspection events and 1K 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.14107 — 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 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 46.3 — Training plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.3
- **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 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 56.12068 — Locking transformer enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12068
- **30 CFR 56.14211 — Blocking equipment in a raised position.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14211
- **30 CFR 56.20003 — Housekeeping.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032

## Source coverage

- **Accident, Injuries, and Illnesses:** 15 rows; 2006-01-12 through 2026-01-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2010-10-13 through 2010-10-13; source ID `msha-addresses`
- **Assessed Violations:** 109 rows; 2000-03-15 through 2025-10-07; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 18 rows; 2007-07-19 through 2017-09-18; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2017-04-25 through 2017-04-25; source ID `msha-conferences`
- **Contested Violations:** 18 rows; 2006-08-23 through 2017-02-21; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 361 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 91 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1993-07-21; source ID `msha-controller-operator-history`
- **Inspections:** 71 rows; 2000-03-15 through 2026-05-19; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 244 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 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:** 36 rows; 2003-05-22 through 2025-10-07; source ID `msha-personal-health-samples`
- **Violations:** 117 rows; 2000-03-15 through 2025-10-07; 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/prescott-quarry-3600039`
- JSON: `/api/v1/mines/prescott-quarry-3600039`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3600039/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3600039/relationships`
- MCP resource: `mine://3600039/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`