# Prospect Park Quarry & Mill

- **MSHA mine ID:** 2800030
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Passaic, NJ
- **Operator:** Tilcon New York Inc
- **Controller:** CRH PLC
- **Public source rows linked:** 309
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**CRH PLC (M06183) → Tilcon New York Inc (L15562) → Prospect Park Quarry & Mill (2800030)**

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

## Controller and operator valid-time history

- **Ashland Inc → Ashland-Warren Inc:** 1950-01-01 through 1979-04-22; derived from co-tenure at mine 2800030; source `msha-controller-operator-history`.
- **BTR PLC → Tilcon New Jersey Inc:** 1979-04-23 through 1996-09-08; derived from co-tenure at mine 2800030; source `msha-controller-operator-history`.
- **CRH PLC → Tilcon New York Inc:** 1996-09-09 through current/open; derived from co-tenure at mine 2800030; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 9
- 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 — 0 since 2021:** Accidents and injuries 6 historical accident/injury rows; 0 coded fatalities and 214 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 30 violation rows across the full record; 5 carry an S&S flag and $2,461 appears in current assessed amounts.
3. **HEALTH — 12 samples:** Occupational health samples 12 personal. 0 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 11K employee hours and 20 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 3 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 2 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 31 inspection events and 482 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 56.11016 — Snow and ice on walkways and travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11016
- **30 CFR 46.3 — Training plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.3
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **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 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 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 56.7002 — Equipment defects.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-F/section-56.7002
- **30 CFR 46.8 — Annual refresher training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.8
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.12034 — Guarding around lights.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12034
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132

## Source coverage

- **Accident, Injuries, and Illnesses:** 6 rows; 2001-01-10 through 2009-12-31; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2010-03-26 through 2010-03-26; source ID `msha-addresses`
- **Assessed Violations:** 30 rows; 2000-03-22 through 2011-02-23; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2000-04-11 through 2000-04-11; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2003-11-25 through 2003-11-25; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 99 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 27 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 1996-09-09; source ID `msha-controller-operator-history`
- **Inspections:** 31 rows; 2000-03-21 through 2011-03-09; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 30 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 36 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:** 12 rows; 2003-10-08 through 2010-05-25; source ID `msha-personal-health-samples`
- **Violations:** 30 rows; 2000-03-22 through 2011-02-23; 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/prospect-park-quarry-mill-2800030`
- JSON: `/api/v1/mines/prospect-park-quarry-mill-2800030`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2800030/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2800030/relationships`
- MCP resource: `mine://2800030/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`