# Amrize Three Rivers Quarry

- **MSHA mine ID:** 1500100
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Livingston, KY
- **Operator:** Amrize South Central Inc.
- **Controller:** Amrize Ltd
- **Public source rows linked:** 9,365
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Amrize Ltd (0193740) → Amrize South Central Inc. (L00632) → Amrize Three Rivers Quarry (1500100)**

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

## Controller and operator valid-time history

- **Harbert Corp → Three Rivers Rock Company:** 1950-01-01 through 1982-11-02; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Cyprus Amax Minerals Company → Three Rivers Rock Company:** 1982-11-03 through 1988-02-29; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Dravo Corp → Dravo Basic Materials Company Inc:** 1988-03-01 through 1995-01-02; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Aggregates:** 1995-01-03 through 2005-05-23; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials, Inc.:** 2005-05-24 through 2011-12-09; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge West, Inc:** 2011-12-10 through 2015-07-09; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Holcim Ltd → Lafarge West, Inc:** 2015-07-10 through 2018-02-04; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize Mid-America Inc.:** 2018-02-05 through 2025-06-22; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Lafarge S A → Amrize Mid-America Inc.:** 2018-02-05 through 2015-07-09; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Amrize Ltd → Amrize Mid-America Inc.:** 2025-06-23 through 2026-04-14; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize South Central Inc.:** 2026-04-15 through 2025-06-22; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Amrize Ltd → Amrize South Central Inc.:** 2026-04-15 through current/open; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Lattimore Properties Inc → Amrize South Central Inc.:** 2026-04-15 through 2011-03-30; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize South Central Inc.:** 2026-04-15 through 2015-07-09; derived from co-tenure at mine 1500100; source `msha-controller-operator-history`.

- History rows: 14
- Typed edges: 33
- Interval anomalies: 4
- 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 — 16 since 2021:** Accidents and injuries 109 historical accident/injury rows; 1 coded fatalities and 3,105 lost days across the published record.
2. **COMPLIANCE — 374 since 2021:** Violations and penalties 1,098 violation rows across the full record; 286 carry an S&S flag and $834,107 appears in current assessed amounts.
3. **HEALTH — 117 samples:** Occupational health samples 117 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 54K employee hours and 115 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 156 linked rows:** Contests, conferences and decisions 66 contested-violation rows, 66 civil-penalty docket/decision rows, and 24 conference records linked by issuance number.
6. **CONTRACTORS — 35 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 — 35 since 2021:** Inspections 149 inspection events and 7K 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 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **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 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008

## Source coverage

- **Accident, Injuries, and Illnesses:** 109 rows; 2000-04-03 through 2026-07-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1976-07-04 through 1976-07-04; source ID `msha-addresses`
- **Assessed Violations:** 1,088 rows; 2000-03-15 through 2026-08-06; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 66 rows; 2007-01-29 through 2026-07-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 24 rows; 2000-04-10 through 2025-05-13; source ID `msha-conferences`
- **Contested Violations:** 66 rows; 2006-03-24 through 2025-11-10; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 5,333 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1,182 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 14 rows; 1950-01-01 through 2026-04-15; source ID `msha-controller-operator-history`
- **Inspections:** 149 rows; 2000-03-15 through 2026-08-03; 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:** 117 rows; 2001-05-09 through 2026-08-10; source ID `msha-personal-health-samples`
- **Violations:** 1,098 rows; 2000-03-15 through 2026-08-06; 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-three-rivers-quarry-1500100`
- JSON: `/api/v1/mines/amrize-three-rivers-quarry-1500100`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1500100/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1500100/relationships`
- MCP resource: `mine://1500100/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`