# Mount Hope Quarry

- **MSHA mine ID:** 2800026
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Granite
- **Location:** Morris, NJ
- **Operator:** Tilcon New York, Inc.
- **Controller:** CRH PLC
- **Public source rows linked:** 2,381
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**CRH PLC (M06183) → Tilcon New York, Inc. (L15562) → Mount Hope Quarry (2800026)**

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

## Controller and operator valid-time history

- **Mt Hope Materials Corp → Mt Hope Materials Corp:** 1950-01-01 through 1980-03-13; derived from co-tenure at mine 2800026; source `msha-controller-operator-history`.
- **Herbert  Hochreiter → Mt Hope Rock Products Inc:** 1980-03-14 through 1987-11-23; derived from co-tenure at mine 2800026; source `msha-controller-operator-history`.
- **Carballal Robert E → Mt Hope Rock Products Inc:** 1987-11-24 through 2001-04-26; derived from co-tenure at mine 2800026; source `msha-controller-operator-history`.
- **CRH PLC → Mt Hope Rock Products Inc:** 2001-04-27 through 2002-08-27; derived from co-tenure at mine 2800026; source `msha-controller-operator-history`.
- **CRH PLC → Tilcon New York, Inc.:** 2002-08-28 through current/open; derived from co-tenure at mine 2800026; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- 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 — 17 since 2021:** Accidents and injuries 51 historical accident/injury rows; 0 coded fatalities and 1,266 lost days across the published record.
2. **COMPLIANCE — 49 since 2021:** Violations and penalties 223 violation rows across the full record; 32 carry an S&S flag and $38,655 appears in current assessed amounts.
3. **HEALTH — 96 samples:** Occupational health samples 96 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 86K employee hours and 167 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 50 linked rows:** Contests, conferences and decisions 20 contested-violation rows, 21 civil-penalty docket/decision rows, and 9 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 — 20 since 2021:** Inspections 86 inspection events and 3K 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 56.11013 — Conveyor crossovers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11013
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.20003 — Housekeeping.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.11001 — Safe access.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **30 CFR 56.14213 — Ventilation and shielding for welding.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14213

## Source coverage

- **Accident, Injuries, and Illnesses:** 51 rows; 2000-06-30 through 2026-08-14; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1982-12-28 through 1982-12-28; source ID `msha-addresses`
- **Assessed Violations:** 220 rows; 2000-01-11 through 2026-04-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 21 rows; 2002-10-29 through 2012-10-05; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 9 rows; 2006-10-16 through 2020-05-12; source ID `msha-conferences`
- **Contested Violations:** 20 rows; 2006-08-29 through 2011-09-20; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,248 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 283 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2002-08-28; source ID `msha-controller-operator-history`
- **Inspections:** 86 rows; 2000-01-11 through 2026-05-07; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 36 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 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:** 96 rows; 2000-11-29 through 2026-04-08; source ID `msha-personal-health-samples`
- **Violations:** 223 rows; 2000-01-11 through 2026-04-15; 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/mount-hope-quarry-2800026`
- JSON: `/api/v1/mines/mount-hope-quarry-2800026`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2800026/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2800026/relationships`
- MCP resource: `mine://2800026/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`