# Rich Hill Quarry

- **MSHA mine ID:** 3600518
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Fayette, PA
- **Operator:** Hanson Aggregates BMC Inc
- **Controller:** Heidelberg Materials AG
- **Public source rows linked:** 2,122
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-18T09:31:49.615Z

## Current entity hierarchy

**Heidelberg Materials AG (M00004) → Hanson Aggregates BMC Inc (L16688) → Rich Hill Quarry (3600518)**

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

## Controller and operator valid-time history

- **Joseph H  Shearer → Commercial Stone Company Inc:** 1950-01-01 through 1999-10-03; derived from co-tenure at mine 3600518; source `msha-controller-operator-history`.
- **USS Holdings Inc → Hanson Aggregates BMC Inc:** 1999-10-04 through 2003-07-18; derived from co-tenure at mine 3600518; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Aggregates BMC Inc:** 2003-07-19 through 2007-08-22; derived from co-tenure at mine 3600518; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Hanson Aggregates BMC Inc:** 2007-08-23 through current/open; derived from co-tenure at mine 3600518; 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: 2026-10-18T09:31:49.615908+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 20 historical accident/injury rows; 0 coded fatalities and 305 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 77 violation rows across the full record; 24 carry an S&S flag and $11,547 appears in current assessed amounts.
3. **HEALTH — 23 samples:** Occupational health samples 22 personal; 1 area. 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 22K employee hours and 41 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 9 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 2 civil-penalty docket/decision rows, and 7 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 — 0 since 2021:** Inspections 27 inspection events and 661 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 56.5001 — 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 41.20 — Legal identity report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-C/section-41.20
- **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 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.14201 — Conveyor start-up warnings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14201
- **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 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
- **30 CFR 56.12040 — Installation of operating controls.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12040
- **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 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003

## Source coverage

- **Accident, Injuries, and Illnesses:** 20 rows; 2000-03-07 through 2007-11-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2008-01-08 through 2008-01-08; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 1 rows; 2007-10-31 through 2007-10-31; source ID `msha-area-samples`
- **Assessed Violations:** 76 rows; 2000-02-02 through 2008-02-25; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2004-12-15 through 2004-12-15; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2000-10-04 through 2002-12-06; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 1,465 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 311 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1999-10-04; source ID `msha-controller-operator-history`
- **Inspections:** 27 rows; 2000-02-01 through 2007-11-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 85 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 23 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:** 22 rows; 2002-06-19 through 2007-10-31; source ID `msha-personal-health-samples`
- **Violations:** 77 rows; 2000-02-02 through 2008-02-25; 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/rich-hill-quarry-3600518`
- JSON: `/api/v1/mines/rich-hill-quarry-3600518`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3600518/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3600518/relationships`
- MCP resource: `mine://3600518/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`