# Crusher #1

- **MSHA mine ID:** 2901968
- **Status:** Active
- **Type / commodity:** Surface / Sand, Industrial NEC
- **Location:** Eddy, NM
- **Operator:** James Hamilton Construction Company
- **Controller:** Charles E  Hamilton; Carroll  Hamilton
- **Public source rows linked:** 1,572
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Charles E  Hamilton; Carroll  Hamilton (M01538) → James Hamilton Construction Company (L01714) → Crusher #1 (2901968)**

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

## Controller and operator valid-time history

- **Carroll  Hamilton  et al → James Hamilton Construction Company:** 1984-08-01 through current/open; derived from co-tenure at mine 2901968; source `msha-controller-operator-history`.
- **Charles E  Hamilton  et al → James Hamilton Construction Company:** 1984-08-01 through current/open; derived from co-tenure at mine 2901968; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 4
- Interval anomalies: 0
- 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 — 7 since 2021:** Accidents and injuries 26 historical accident/injury rows; 1 coded fatalities and 106 lost days across the published record.
2. **COMPLIANCE — 48 since 2021:** Violations and penalties 191 violation rows across the full record; 42 carry an S&S flag and $80,894 appears in current assessed amounts.
3. **HEALTH — 38 samples:** Occupational health samples 38 personal. 2 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 5K employee hours and 20 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 59 linked rows:** Contests, conferences and decisions 28 contested-violation rows, 29 civil-penalty docket/decision rows, and 2 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 — 19 since 2021:** Inspections 81 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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **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 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 56.23003 — Requirements for written safety program.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-T/section-56.23003
- **30 CFR 41.20 — Legal identity report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-C/section-41.20
- **30 CFR 45.4 — Independent contractor register.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-45/section-45.4
- **30 CFR 56.11010 — Stairstep clearance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11010
- **30 CFR 56.15001 — First-aid materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15001

## Source coverage

- **Accident, Injuries, and Illnesses:** 26 rows; 2000-05-26 through 2026-06-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2014-07-08 through 2014-07-08; source ID `msha-addresses`
- **Assessed Violations:** 185 rows; 2000-02-15 through 2026-03-18; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 29 rows; 2005-01-06 through 2023-05-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2003-07-09 through 2003-09-22; source ID `msha-conferences`
- **Contested Violations:** 28 rows; 2008-09-03 through 2022-09-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 769 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 167 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1984-08-01 through 1984-08-01; source ID `msha-controller-operator-history`
- **Inspections:** 81 rows; 2000-02-01 through 2026-09-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 12 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 40 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:** 38 rows; 2005-09-08 through 2026-09-15; source ID `msha-personal-health-samples`
- **Violations:** 191 rows; 2000-02-15 through 2026-09-01; 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/crusher-1-2901968`
- JSON: `/api/v1/mines/crusher-1-2901968`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2901968/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2901968/relationships`
- MCP resource: `mine://2901968/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`