# Hilo Crusher

- **MSHA mine ID:** 5100008
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Hawaii, HI
- **Operator:** James W Glover Ltd
- **Controller:** James W Glover Holding Company Ltd
- **Public source rows linked:** 1,450
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**James W Glover Holding Company Ltd (M34773) → James W Glover Ltd (L34773) → Hilo Crusher (5100008)**

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

## Controller and operator valid-time history

- **James W Glover Holding Company Ltd → James W Glover Ltd:** 1950-01-01 through current/open; derived from co-tenure at mine 5100008; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 4 since 2021:** Accidents and injuries 9 historical accident/injury rows; 0 coded fatalities and 269 lost days across the published record.
2. **COMPLIANCE — 42 since 2021:** Violations and penalties 181 violation rows across the full record; 35 carry an S&S flag and $30,528 appears in current assessed amounts.
3. **HEALTH — 25 samples:** Occupational health samples 25 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 7K employee hours and 14 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 16 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 14 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 63 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 56.14101 — 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 56.12032 — 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 56.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12006
- **30 CFR 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **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 56.12004 — 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 56.12008 — Insulation and fittings for power wires and cables.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2002-04-03 through 2026-09-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1973-04-26 through 1973-04-26; source ID `msha-addresses`
- **Assessed Violations:** 178 rows; 2000-10-30 through 2026-07-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2019-04-17 through 2019-04-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 14 rows; 2017-05-08 through 2025-07-18; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2018-06-25 through 2018-06-25; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 564 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 118 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 63 rows; 2000-10-30 through 2026-07-22; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 245 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 48 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:** 25 rows; 2002-12-18 through 2024-01-25; source ID `msha-personal-health-samples`
- **Violations:** 181 rows; 2000-10-30 through 2026-07-09; 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/hilo-crusher-5100008`
- JSON: `/api/v1/mines/hilo-crusher-5100008`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/5100008/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/5100008/relationships`
- MCP resource: `mine://5100008/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`