# Amrize Littleton Quarry

- **MSHA mine ID:** 1900359
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Granite
- **Location:** Middlesex, MA
- **Operator:** Amrize Northeast Inc.
- **Controller:** Amrize Ltd
- **Public source rows linked:** 1,673
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Amrize Ltd (0193740) → Amrize Northeast Inc. (L17298) → Amrize Littleton Quarry (1900359)**

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

## Controller and operator valid-time history

- **Millard O  Pierce → San-Vel Concrete Corp:** 1950-01-01 through 1979-06-25; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Lone Star Industries Inc → New York Trap Rock Corp:** 1979-06-26 through 1992-08-10; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Robert W  Pereira → Middlesex Materials Corp:** 1992-08-11 through 1999-06-10; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Bardon Trimount Inc:** 1999-06-11 through 2002-08-21; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Amrize Northeast Inc.:** 2002-08-22 through 2009-04-29; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize Northeast Inc.:** 2009-04-30 through 2015-07-09; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Holcim Ltd → Bardon Trimount Inc:** 2009-04-30 through 2002-08-21; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize Northeast Inc.:** 2015-07-10 through 2025-06-22; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.
- **Amrize Ltd → Amrize Northeast Inc.:** 2025-06-23 through current/open; derived from co-tenure at mine 1900359; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 23
- Interval anomalies: 1
- 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 — 1 since 2021:** Accidents and injuries 20 historical accident/injury rows; 0 coded fatalities and 134 lost days across the published record.
2. **COMPLIANCE — 19 since 2021:** Violations and penalties 169 violation rows across the full record; 19 carry an S&S flag and $40,329 appears in current assessed amounts.
3. **HEALTH — 36 samples:** Occupational health samples 36 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 7K employee hours and 12 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 46 linked rows:** Contests, conferences and decisions 17 contested-violation rows, 17 civil-penalty docket/decision rows, and 12 conference records linked by issuance number.
6. **CONTRACTORS — 10 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 — 12 since 2021:** Inspections 66 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 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 56.9300 — 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 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 56.18002 — 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 56.12032 — 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 56.16009 — Suspended loads.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16009
- **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 56.4501 — Fuel lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4501
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205
- **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 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9

## Source coverage

- **Accident, Injuries, and Illnesses:** 20 rows; 2000-05-10 through 2025-07-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-12-20 through 2024-12-20; source ID `msha-addresses`
- **Assessed Violations:** 168 rows; 2000-08-31 through 2025-12-01; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 17 rows; 2009-06-08 through 2015-08-13; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 12 rows; 2009-04-22 through 2012-01-19; source ID `msha-conferences`
- **Contested Violations:** 17 rows; 2007-10-23 through 2015-02-11; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 667 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 181 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 1950-01-01 through 2002-08-22; source ID `msha-controller-operator-history`
- **Inspections:** 66 rows; 2000-08-31 through 2025-12-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 255 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:** 36 rows; 2002-05-08 through 2020-01-16; source ID `msha-personal-health-samples`
- **Violations:** 169 rows; 2000-08-31 through 2025-12-01; 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/amrize-littleton-quarry-1900359`
- JSON: `/api/v1/mines/amrize-littleton-quarry-1900359`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1900359/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1900359/relationships`
- MCP resource: `mine://1900359/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`