# Princeton

- **MSHA mine ID:** 3608093
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Lawrence, PA
- **Operator:** Allegheny Mineral Corp
- **Controller:** Snyder Associated Companies Inc
- **Public source rows linked:** 3,233
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Snyder Associated Companies Inc (M00734) → Allegheny Mineral Corp (L00874) → Princeton (3608093)**

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

## Controller and operator valid-time history

- **Joseph  Gizienski → Northern Allegheny Stone Inc:** 1989-07-01 through 1989-08-31; derived from co-tenure at mine 3608093; source `msha-controller-operator-history`.
- **Joseph  Aloe et al → Quality Aggregates Inc:** 1989-09-01 through 2013-06-25; derived from co-tenure at mine 3608093; source `msha-controller-operator-history`.
- **Snyder Associated Companies Inc → Allegheny Mineral Corp:** 2013-06-26 through current/open; derived from co-tenure at mine 3608093; 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 — 5 since 2021:** Accidents and injuries 50 historical accident/injury rows; 0 coded fatalities and 1,766 lost days across the published record.
2. **COMPLIANCE — 23 since 2021:** Violations and penalties 263 violation rows across the full record; 69 carry an S&S flag and $89,024 appears in current assessed amounts.
3. **HEALTH — 61 samples:** Occupational health samples 61 personal. 3 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 19K employee hours and 29 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 94 linked rows:** Contests, conferences and decisions 30 contested-violation rows, 51 civil-penalty docket/decision rows, and 13 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 — 15 since 2021:** Inspections 92 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 56.4104 — Combustible waste.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104
- **30 CFR 57.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14101
- **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 56.12032 — 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
- **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 56.14103 — Operators stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103
- **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 56.12004 — 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 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3200

## Source coverage

- **Accident, Injuries, and Illnesses:** 50 rows; 2000-06-08 through 2026-03-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1989-07-18 through 1989-07-18; source ID `msha-addresses`
- **Assessed Violations:** 260 rows; 2001-01-26 through 2026-07-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 51 rows; 2001-06-21 through 2013-12-19; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 13 rows; 2003-09-03 through 2012-07-13; source ID `msha-conferences`
- **Contested Violations:** 30 rows; 2005-04-20 through 2012-06-14; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,713 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 359 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1989-07-01 through 2013-06-26; source ID `msha-controller-operator-history`
- **Inspections:** 92 rows; 2000-01-10 through 2026-07-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 268 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 68 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:** 61 rows; 2002-05-30 through 2025-10-08; source ID `msha-personal-health-samples`
- **Violations:** 263 rows; 2001-01-26 through 2026-07-28; 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/princeton-3608093`
- JSON: `/api/v1/mines/princeton-3608093`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3608093/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3608093/relationships`
- MCP resource: `mine://3608093/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`