# Puunene Camp 10 Quarry

- **MSHA mine ID:** 5100004
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Maui, HI
- **Operator:** Kahala Concrete, LLC
- **Controller:** Nan Chul Patrick"  Shin"
- **Public source rows linked:** 1,348
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Nan Chul Patrick"  Shin" (0171400) → Kahala Concrete, LLC (0210533) → Puunene Camp 10 Quarry (5100004)**

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

## Controller and operator valid-time history

- **Concrete Industries Maui → Concrete Industries Maui:** 1950-01-01 through 1978-12-18; derived from co-tenure at mine 5100004; source `msha-controller-operator-history`.
- **Ameron International Corp → Ameron Hawaii:** 1978-12-19 through 2013-01-31; derived from co-tenure at mine 5100004; source `msha-controller-operator-history`.
- **National Oilwell Varco Inc → Ameron Hawaii:** 2013-02-01 through 2014-06-30; derived from co-tenure at mine 5100004; source `msha-controller-operator-history`.
- **Pohaku Paa LLC → HC&D, LLC:** 2014-07-01 through 2026-07-23; derived from co-tenure at mine 5100004; source `msha-controller-operator-history`.
- **Nan Chul Patrick"  Shin" → Kahala Concrete, LLC:** 2026-07-24 through current/open; derived from co-tenure at mine 5100004; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- 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 — 5 since 2021:** Accidents and injuries 41 historical accident/injury rows; 0 coded fatalities and 1,459 lost days across the published record.
2. **COMPLIANCE — 13 since 2021:** Violations and penalties 195 violation rows across the full record; 36 carry an S&S flag and $63,267 appears in current assessed amounts.
3. **HEALTH — 30 samples:** Occupational health samples 30 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 13K employee hours and 23 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 115 linked rows:** Contests, conferences and decisions 57 contested-violation rows, 57 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 11 since 2021:** Inspections 55 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 56.12004 — 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 56.14112 — 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 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.6132 — Magazine requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-E/section-56.6132
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 62.120 — Action level.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.120
- **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 56.4101 — 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:** 41 rows; 2001-06-07 through 2025-04-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-08-04 through 2026-08-04; source ID `msha-addresses`
- **Assessed Violations:** 195 rows; 2000-11-13 through 2025-04-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 57 rows; 2010-05-14 through 2020-01-22; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2013-02-27 through 2013-02-27; source ID `msha-conferences`
- **Contested Violations:** 57 rows; 2008-10-30 through 2019-04-09; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 251 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 60 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2026-07-24; source ID `msha-controller-operator-history`
- **Inspections:** 55 rows; 2000-11-15 through 2026-06-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 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:** 30 rows; 2007-05-10 through 2024-01-11; source ID `msha-personal-health-samples`
- **Violations:** 195 rows; 2000-11-13 through 2025-04-15; 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/puunene-camp-10-quarry-5100004`
- JSON: `/api/v1/mines/puunene-camp-10-quarry-5100004`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/5100004/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/5100004/relationships`
- MCP resource: `mine://5100004/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`