# Warfordsburg Quarry

- **MSHA mine ID:** 3600168
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Fulton, PA
- **Operator:** Bluegrass Materials Company, LLC
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 2,678
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Bluegrass Materials Company, LLC (0113025) → Warfordsburg Quarry (3600168)**

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

## Controller and operator valid-time history

- **H B Mellott Estate Inc → H B Mellott Estate Inc:** 1950-01-01 through 2007-08-31; derived from co-tenure at mine 3600168; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge Mid Atlantic, Inc.:** 2007-09-01 through 2009-10-05; derived from co-tenure at mine 3600168; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge Mid Atlantic, LLC:** 2009-10-06 through 2014-02-12; derived from co-tenure at mine 3600168; source `msha-controller-operator-history`.
- **Panadero Aggregates Holdings, LLC → Bluegrass Materials Company, LLC:** 2014-02-13 through 2018-04-26; derived from co-tenure at mine 3600168; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Bluegrass Materials Company, LLC:** 2018-04-27 through current/open; derived from co-tenure at mine 3600168; source `msha-controller-operator-history`.
- **Jonathan  Schilowitz → H B Mellott Estate Inc:** 2022-04-05 through 2007-08-31; derived from co-tenure at mine 3600168; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 16
- 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 — 2 since 2021:** Accidents and injuries 31 historical accident/injury rows; 0 coded fatalities and 1,014 lost days across the published record.
2. **COMPLIANCE — 7 since 2021:** Violations and penalties 64 violation rows across the full record; 11 carry an S&S flag and $8,968 appears in current assessed amounts.
3. **HEALTH — 28 samples:** Occupational health samples 28 personal. 1 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 2K employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 4 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 — 6 since 2021:** Inspections 49 inspection events and 853 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 56.14132 — Horns and backup alarms.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **30 CFR 56.4203 — Extinguisher recharging or replacement.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4203
- **30 CFR 56.9201 — Loading, hauling, and unloading of equipment or supplies.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9201
- **30 CFR 47.41 — Requirement for container labels.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.12018 — Identification of power switches.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **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:** 31 rows; 2000-03-01 through 2023-05-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-05-27 through 2025-05-27; source ID `msha-addresses`
- **Assessed Violations:** 63 rows; 2000-04-18 through 2025-10-21; source ID `msha-assessed-violations`
- **Conferences:** 4 rows; 2004-11-19 through 2006-01-30; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 1,771 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 330 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2014-02-13; source ID `msha-controller-operator-history`
- **Inspections:** 49 rows; 2000-04-12 through 2025-12-16; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 265 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 65 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:** 28 rows; 2004-11-09 through 2025-10-22; source ID `msha-personal-health-samples`
- **Violations:** 64 rows; 2000-04-18 through 2025-10-21; 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/warfordsburg-quarry-3600168`
- JSON: `/api/v1/mines/warfordsburg-quarry-3600168`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3600168/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3600168/relationships`
- MCP resource: `mine://3600168/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`