# Kapaa Quarry And Mill

- **MSHA mine ID:** 5100019
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Honolulu, HI
- **Operator:** HC&D, LLC
- **Controller:** Pohaku Paa LLC
- **Public source rows linked:** 2,054
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Pohaku Paa LLC (0114381) → HC&D, LLC (0134414) → Kapaa Quarry And Mill (5100019)**

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

## Controller and operator valid-time history

- **Ameron International Corp → Ameron Hawaii:** 1950-01-01 through 2013-01-31; derived from co-tenure at mine 5100019; source `msha-controller-operator-history`.
- **National Oilwell Varco Inc → Ameron Hawaii:** 2013-02-01 through 2014-06-30; derived from co-tenure at mine 5100019; source `msha-controller-operator-history`.
- **Pohaku Paa LLC → HC&D, LLC:** 2014-07-01 through current/open; derived from co-tenure at mine 5100019; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- 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 — 25 since 2021:** Accidents and injuries 147 historical accident/injury rows; 0 coded fatalities and 4,631 lost days across the published record.
2. **COMPLIANCE — 41 since 2021:** Violations and penalties 366 violation rows across the full record; 70 carry an S&S flag and $160,490 appears in current assessed amounts.
3. **HEALTH — 48 samples:** Occupational health samples 48 personal. 1 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 40K employee hours and 73 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 358 linked rows:** Contests, conferences and decisions 177 contested-violation rows, 177 civil-penalty docket/decision rows, and 4 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 — 23 since 2021:** Inspections 75 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 56.14100 — 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 56.20011 — 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 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **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 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.11004 — Portable rigid ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11004
- **30 CFR 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 56.4530 — Exits.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4530
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 147 rows; 2000-04-25 through 2026-09-14; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1978-06-08 through 1978-06-08; source ID `msha-addresses`
- **Assessed Violations:** 360 rows; 2000-01-17 through 2026-07-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 177 rows; 2010-02-18 through 2022-04-21; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 4 rows; 2009-01-20 through 2017-03-15; source ID `msha-conferences`
- **Contested Violations:** 177 rows; 2008-11-13 through 2021-11-30; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 231 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 68 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 2014-07-01; source ID `msha-controller-operator-history`
- **Inspections:** 75 rows; 2000-01-17 through 2026-07-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 315 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:** 48 rows; 2003-03-04 through 2023-12-09; source ID `msha-personal-health-samples`
- **Violations:** 366 rows; 2000-01-17 through 2026-07-14; 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/kapaa-quarry-and-mill-5100019`
- JSON: `/api/v1/mines/kapaa-quarry-and-mill-5100019`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/5100019/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/5100019/relationships`
- MCP resource: `mine://5100019/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`