# Stafford Quarry

- **MSHA mine ID:** 3000055
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Genesee, NY
- **Operator:** Heidelberg Materials Northeast-NY LLC
- **Controller:** Heidelberg Materials AG
- **Public source rows linked:** 740
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Heidelberg Materials AG (M00004) → Heidelberg Materials Northeast-NY LLC (L16397) → Stafford Quarry (3000055)**

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

## Controller and operator valid-time history

- **Gene Dewitt Corporation → Genesee Le Roy Stone Corp:** 1950-01-01 through 2000-02-10; derived from co-tenure at mine 3000055; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Aggregates Glsc Inc:** 2000-02-11 through 2003-02-04; derived from co-tenure at mine 3000055; source `msha-controller-operator-history`.
- **Hanson PLC → Heidelberg Materials Northeast-NY LLC:** 2003-02-05 through 2007-08-22; derived from co-tenure at mine 3000055; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Heidelberg Materials Northeast-NY LLC:** 2007-08-23 through current/open; derived from co-tenure at mine 3000055; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- 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 — 4 since 2021:** Accidents and injuries 11 historical accident/injury rows; 0 coded fatalities and 208 lost days across the published record.
2. **COMPLIANCE — 17 since 2021:** Violations and penalties 70 violation rows across the full record; 10 carry an S&S flag and $14,793 appears in current assessed amounts.
3. **HEALTH — 77 samples:** Occupational health samples 77 personal. 7 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 12K employee hours and 17 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 3 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 17 since 2021:** Inspections 61 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 50.20-1 — General instructions for completing MSHA Form 7000-1.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-1
- **30 CFR 56.5001 — Exposure limits for airborne contaminants.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.15005 — Safety belts and lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005
- **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 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 56.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15004
- **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 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30

## Source coverage

- **Accident, Injuries, and Illnesses:** 11 rows; 2000-10-05 through 2026-01-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-12-12 through 2024-12-12; source ID `msha-addresses`
- **Assessed Violations:** 70 rows; 2000-10-17 through 2026-08-10; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2011-06-22 through 2011-06-22; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2020-07-29 through 2020-07-29; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2010-07-08 through 2010-07-08; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 102 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 29 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2003-02-05; source ID `msha-controller-operator-history`
- **Inspections:** 61 rows; 2000-10-17 through 2026-09-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 257 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 77 rows; 2000-10-19 through 2025-11-25; source ID `msha-personal-health-samples`
- **Violations:** 70 rows; 2000-10-17 through 2026-08-10; 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/stafford-quarry-3000055`
- JSON: `/api/v1/mines/stafford-quarry-3000055`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3000055/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3000055/relationships`
- MCP resource: `mine://3000055/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`