# Amrize Dundee Quarry

- **MSHA mine ID:** 2002383
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Monroe, MI
- **Operator:** AMRIZE GREAT LAKES INC.
- **Controller:** Amrize Ltd
- **Public source rows linked:** 1,480
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Amrize Ltd (0193740) → AMRIZE GREAT LAKES INC. (L16652) → Amrize Dundee Quarry (2002383)**

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

## Controller and operator valid-time history

- **Bill W  Smith → Bill Smith Sand & Gravel Inc:** 1950-01-01 through 1999-01-21; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Bill Smith Sand & Gravel:** 2004-06-10 through 2009-04-29; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Holcim Ltd → Bill Smith Sand & Gravel:** 2009-04-30 through 2011-07-11; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Meyer Material Acquisition Corp Et Al → Meyer Material CO, LLC:** 2011-07-12 through 2011-07-11; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Meyer Material CO, LLC:** 2011-07-12 through 2015-07-09; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Holcim Ltd → Meyer Material CO, LLC:** 2015-07-10 through 2025-06-22; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize Great Lakes Inc.:** 2025-06-23 through 2025-06-22; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Amrize Ltd → Meyer Material CO, LLC:** 2025-06-23 through 2025-06-22; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Amrize Ltd → Amrize Great Lakes Inc.:** 2025-06-23 through 2026-01-29; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Lafarge S A → Amrize Great Lakes Inc.:** 2025-06-23 through 2015-07-09; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize Midwest Inc.:** 2026-01-30 through 2025-06-22; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Amrize Ltd → Amrize Midwest Inc.:** 2026-01-30 through 2026-04-14; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize Midwest Inc.:** 2026-01-30 through 2015-07-09; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Amrize Midwest Inc.:** 2026-01-30 through 2009-04-29; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Holcim Ltd → AMRIZE GREAT LAKES INC.:** 2026-04-15 through 2025-06-22; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Amrize Ltd → AMRIZE GREAT LAKES INC.:** 2026-04-15 through current/open; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.
- **Lafarge S A → AMRIZE GREAT LAKES INC.:** 2026-04-15 through 2015-07-09; derived from co-tenure at mine 2002383; source `msha-controller-operator-history`.

- History rows: 17
- Typed edges: 33
- Interval anomalies: 9
- 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 — 2 since 2021:** Accidents and injuries 8 historical accident/injury rows; 0 coded fatalities and 206 lost days across the published record.
2. **COMPLIANCE — 10 since 2021:** Violations and penalties 56 violation rows across the full record; 9 carry an S&S flag and $7,864 appears in current assessed amounts.
3. **HEALTH — 31 samples:** Occupational health samples 31 personal. 1 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 6K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 — 14 since 2021:** Inspections 50 inspection events and 753 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 56.4501 — 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 56.16006 — Protection of gas cylinder valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16006
- **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 56.14100 — 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 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 50.20-7 — Criteria—MSHA Form 7000-1, Section D.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-7
- **30 CFR 56.3131 — Pit or quarry wall perimeter.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3131
- **30 CFR 56.9300 — Berms or guardrails.** (2 retained recent rows) — 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 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 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207

## Source coverage

- **Accident, Injuries, and Illnesses:** 8 rows; 2002-06-03 through 2023-11-01; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-04-15 through 2022-04-15; source ID `msha-addresses`
- **Assessed Violations:** 56 rows; 2000-10-25 through 2025-06-24; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2013-12-20 through 2013-12-20; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 814 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 200 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 17 rows; 1950-01-01 through 2026-04-15; source ID `msha-controller-operator-history`
- **Inspections:** 50 rows; 2000-10-25 through 2026-06-24; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 200 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 45 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:** 31 rows; 2002-09-12 through 2026-06-24; source ID `msha-personal-health-samples`
- **Violations:** 56 rows; 2000-10-25 through 2025-06-24; 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-dundee-quarry-2002383`
- JSON: `/api/v1/mines/amrize-dundee-quarry-2002383`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2002383/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2002383/relationships`
- MCP resource: `mine://2002383/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`