# 1014 EAGLE MOUNTAIN QUARRY

- **MSHA mine ID:** 0203146
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Maricopa, AZ
- **Operator:** Arcosa Aggregates West, LLC.
- **Controller:** Arcosa, Inc
- **Public source rows linked:** 378
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Arcosa, Inc (0144281) → Arcosa Aggregates West, LLC. (0186133) → 1014 EAGLE MOUNTAIN QUARRY (0203146)**

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

## Controller and operator valid-time history

- **Chris J  Reinesch et al → Southwest Rock Products:** 2006-11-06 through 2021-08-03; derived from co-tenure at mine 0203146; source `msha-controller-operator-history`.
- **Steve J  Hood et al → Southwest Rock Products:** 2006-11-06 through 2021-08-03; derived from co-tenure at mine 0203146; source `msha-controller-operator-history`.
- **Chris  Reinesch et al → Southwest Rock Products:** 2006-11-06 through 2005-12-18; derived from co-tenure at mine 0203146; source `msha-controller-operator-history`.
- **Rochelle  Reinesch et al → Southwest Rock Products:** 2006-11-06 through 2005-12-18; derived from co-tenure at mine 0203146; source `msha-controller-operator-history`.
- **Arcosa, Inc → Southwest Rock Products:** 2021-08-04 through 2022-12-11; derived from co-tenure at mine 0203146; source `msha-controller-operator-history`.
- **Arcosa, Inc → Arcosa Aggregates West, LLC.:** 2022-12-12 through current/open; derived from co-tenure at mine 0203146; source `msha-controller-operator-history`.

- History rows: 6
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 1 since 2021:** Accidents and injuries 4 historical accident/injury rows; 0 coded fatalities and 38 lost days across the published record.
2. **COMPLIANCE — 14 since 2021:** Violations and penalties 51 violation rows across the full record; 16 carry an S&S flag and $6,735 appears in current assessed amounts.
3. **HEALTH — 8 samples:** Occupational health samples 8 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 4K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 35 linked rows:** Contests, conferences and decisions 13 contested-violation rows, 13 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 41 inspection events and 366 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 56.12008 — 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
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **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 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 56.20003 — 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 56.4601 — 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 56.18009 — Designation of person in charge.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18009
- **30 CFR 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **30 CFR 56.12068 — Locking transformer enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12068
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 4 rows; 2016-11-07 through 2026-06-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2023-05-12 through 2023-05-12; source ID `msha-addresses`
- **Assessed Violations:** 51 rows; 2008-05-27 through 2026-08-12; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 13 rows; 2011-09-15 through 2023-07-07; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 9 rows; 2008-07-02 through 2025-02-12; source ID `msha-conferences`
- **Contested Violations:** 13 rows; 2009-09-08 through 2022-11-02; source ID `msha-contested-violations`
- **Controller and Operator History:** 6 rows; 2006-11-06 through 2022-12-12; source ID `msha-controller-operator-history`
- **Inspections:** 41 rows; 2007-07-09 through 2026-08-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 155 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 25 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:** 8 rows; 2011-04-20 through 2025-06-18; source ID `msha-personal-health-samples`
- **Violations:** 51 rows; 2008-05-27 through 2026-08-12; 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/1014-eagle-mountain-quarry-0203146`
- JSON: `/api/v1/mines/1014-eagle-mountain-quarry-0203146`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0203146/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0203146/relationships`
- MCP resource: `mine://0203146/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`