# Lake Lynn Quarry 1366

- **MSHA mine ID:** 3608891
- **Status:** Active
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Fayette, PA
- **Operator:** Laurel Aggregates of Delaware LLC
- **Controller:** Arcosa, Inc
- **Public source rows linked:** 5,069
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Arcosa, Inc (0144281) → Laurel Aggregates of Delaware LLC (0124050) → Lake Lynn Quarry 1366 (3608891)**

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

## Controller and operator valid-time history

- **James L  Laurita Jr et al → Laurel Aggregates Inc:** 2000-12-01 through 2012-06-07; derived from co-tenure at mine 3608891; source `msha-controller-operator-history`.
- **VantaCore Partners LP et al → Laurel Aggregates of Delaware LLC:** 2012-06-08 through 2018-12-10; derived from co-tenure at mine 3608891; source `msha-controller-operator-history`.
- **Sun Capital Partners Inc → Laurel Aggregates of Delaware LLC:** 2018-12-11 through 2021-05-20; derived from co-tenure at mine 3608891; source `msha-controller-operator-history`.
- **Arcosa, Inc → Laurel Aggregates of Delaware LLC:** 2021-05-21 through current/open; derived from co-tenure at mine 3608891; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 2 since 2021:** Accidents and injuries 51 historical accident/injury rows; 1 coded fatalities and 1,565 lost days across the published record.
2. **COMPLIANCE — 50 since 2021:** Violations and penalties 357 violation rows across the full record; 69 carry an S&S flag and $118,851 appears in current assessed amounts.
3. **HEALTH — 401 samples:** Occupational health samples 389 personal; 12 area. 9 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 9K employee hours and 18 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 159 linked rows:** Contests, conferences and decisions 69 contested-violation rows, 66 civil-penalty docket/decision rows, and 24 conference records linked by issuance number.
6. **CONTRACTORS — 20 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 — 40 since 2021:** Inspections 145 inspection events and 6K 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 57.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12006
- **30 CFR 57.14107 — Moving machine parts.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.14211 — Blocking equipment in a raised position.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14211
- **30 CFR 57.12068 — Locking transformer enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12068
- **30 CFR 57.4102 — Spillage and leakage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4102
- **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 57.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12032

## Source coverage

- **Accident, Injuries, and Illnesses:** 51 rows; 2002-04-22 through 2026-04-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2001-07-11 through 2001-07-11; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 12 rows; 2021-08-25 through 2026-08-27; source ID `msha-area-samples`
- **Assessed Violations:** 351 rows; 2002-03-05 through 2026-01-23; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 66 rows; 2007-11-30 through 2026-03-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 24 rows; 2016-09-21 through 2023-11-30; source ID `msha-conferences`
- **Contested Violations:** 69 rows; 2006-05-25 through 2025-01-22; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,866 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 634 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 2000-12-01 through 2012-06-08; source ID `msha-controller-operator-history`
- **Inspections:** 145 rows; 2001-07-12 through 2026-10-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 10 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 89 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:** 389 rows; 2002-10-03 through 2026-08-27; source ID `msha-personal-health-samples`
- **Violations:** 357 rows; 2002-03-05 through 2026-10-06; 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/lake-lynn-quarry-1366-3608891`
- JSON: `/api/v1/mines/lake-lynn-quarry-1366-3608891`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3608891/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3608891/relationships`
- MCP resource: `mine://3608891/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`