# Amrize Daniels Sand Pit # 1 & 2

- **MSHA mine ID:** 0501902
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** El Paso, CO
- **Operator:** Amrize West Central Inc.
- **Controller:** Amrize Ltd
- **Public source rows linked:** 1,403
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Amrize Ltd (0193740) → Amrize West Central Inc. (L17266) → Amrize Daniels Sand Pit # 1 & 2 (0501902)**

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

## Controller and operator valid-time history

- **Continental Materials Corp → Daniels Sand/Transit Mix Concrete:** 1950-01-01 through 2019-01-31; derived from co-tenure at mine 0501902; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize West Central Inc.:** 2019-02-01 through 2025-06-22; derived from co-tenure at mine 0501902; source `msha-controller-operator-history`.
- **Holcim Ltd → Amrize West Central Inc.:** 2019-02-01 through 2015-07-09; derived from co-tenure at mine 0501902; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Amrize West Central Inc.:** 2019-02-01 through 2009-04-29; derived from co-tenure at mine 0501902; source `msha-controller-operator-history`.
- **Amrize Ltd → Amrize West Central Inc.:** 2025-06-23 through current/open; derived from co-tenure at mine 0501902; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 12
- Interval anomalies: 2
- 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 18 historical accident/injury rows; 0 coded fatalities and 440 lost days across the published record.
2. **COMPLIANCE — 98 since 2021:** Violations and penalties 300 violation rows across the full record; 52 carry an S&S flag and $126,364 appears in current assessed amounts.
3. **HEALTH — 37 samples:** Occupational health samples 37 personal. 3 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 9 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 11 linked rows:** Contests, conferences and decisions 5 contested-violation rows, 5 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 95 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 56.12028 — Testing grounding systems.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.11012 — Protection for openings around travelways.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4601
- **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 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.4230 — Self-propelled equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4230
- **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
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 18 rows; 2000-04-03 through 2019-03-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1992-10-01 through 1992-10-01; source ID `msha-addresses`
- **Assessed Violations:** 298 rows; 2000-10-31 through 2026-06-10; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2011-11-22 through 2012-01-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2023-04-25 through 2023-04-25; source ID `msha-conferences`
- **Contested Violations:** 5 rows; 2011-04-05 through 2011-04-25; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 498 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 61 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2019-02-01; source ID `msha-controller-operator-history`
- **Inspections:** 95 rows; 2000-10-31 through 2026-08-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 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:** 37 rows; 2005-06-02 through 2024-05-15; source ID `msha-personal-health-samples`
- **Violations:** 300 rows; 2000-10-31 through 2026-06-10; 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-daniels-sand-pit-1-2-0501902`
- JSON: `/api/v1/mines/amrize-daniels-sand-pit-1-2-0501902`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0501902/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0501902/relationships`
- MCP resource: `mine://0501902/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`