# New Britain Quarry

- **MSHA mine ID:** 0600022
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Hartford, CT
- **Operator:** Tilcon Connecticut Inc
- **Controller:** CRH PLC
- **Public source rows linked:** 1,842
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → Tilcon Connecticut Inc (L15563) → New Britain Quarry (0600022)**

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

## Controller and operator valid-time history

- **Ashland Inc → New Haven Trap Rock-Tomasso Inc:** 1950-01-01 through 1979-04-22; derived from co-tenure at mine 0600022; source `msha-controller-operator-history`.
- **BTR PLC → Tilcon Connecticut Inc:** 1979-04-23 through 1996-09-08; derived from co-tenure at mine 0600022; source `msha-controller-operator-history`.
- **CRH PLC → Tilcon Connecticut Inc:** 1996-09-09 through current/open; derived from co-tenure at mine 0600022; 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 6 since 2021:** Accidents and injuries 46 historical accident/injury rows; 0 coded fatalities and 384 lost days across the published record.
2. **COMPLIANCE — 24 since 2021:** Violations and penalties 122 violation rows across the full record; 15 carry an S&S flag and $16,578 appears in current assessed amounts.
3. **HEALTH — 191 samples:** Occupational health samples 191 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 43K employee hours and 73 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 25 linked rows:** Contests, conferences and decisions 7 contested-violation rows, 7 civil-penalty docket/decision rows, and 11 conference records linked by issuance number.
6. **CONTRACTORS — 7 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 72 inspection events and 2K 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 56.14101 — 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 56.12023 — Guarding electrical connections and resistor grids.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12023
- **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 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **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 56.14100 — 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 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **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
- **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 56.11027 — Scaffolds and working platforms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11027

## Source coverage

- **Accident, Injuries, and Illnesses:** 46 rows; 2000-01-31 through 2025-09-18; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1994-04-06 through 1994-04-06; source ID `msha-addresses`
- **Assessed Violations:** 122 rows; 2000-01-24 through 2026-05-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2015-08-17 through 2016-07-20; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 11 rows; 2007-04-30 through 2026-09-10; source ID `msha-conferences`
- **Contested Violations:** 7 rows; 2015-03-04 through 2016-03-09; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 703 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 157 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:** 72 rows; 2000-01-24 through 2026-07-24; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 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:** 191 rows; 2000-12-06 through 2025-05-22; source ID `msha-personal-health-samples`
- **Violations:** 122 rows; 2000-01-24 through 2026-05-28; 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/new-britain-quarry-0600022`
- JSON: `/api/v1/mines/new-britain-quarry-0600022`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0600022/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0600022/relationships`
- MCP resource: `mine://0600022/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`