# Azusa Quarry

- **MSHA mine ID:** 0401696
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Los Angeles, CA
- **Operator:** L&G Portable Crushing and Materials
- **Controller:** Milan  Lubanko
- **Public source rows linked:** 871
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Milan  Lubanko (0155861) → L&G Portable Crushing and Materials (0132413) → Azusa Quarry (0401696)**

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

## Controller and operator valid-time history

- **Transmix Corp → Transit Mixed Concrete Company:** 1950-01-01 through 1990-02-07; derived from co-tenure at mine 0401696; source `msha-controller-operator-history`.
- **Southdown Inc → Southdown California Aggregates:** 1990-02-08 through 2001-12-31; derived from co-tenure at mine 0401696; source `msha-controller-operator-history`.
- **Cemex S A → Cemex Construction Materials LP:** 2002-01-01 through 2010-02-23; derived from co-tenure at mine 0401696; source `msha-controller-operator-history`.
- **Cemex S A → CEMEX Construction Materials Pacific, LLC:** 2010-02-24 through 2018-05-24; derived from co-tenure at mine 0401696; source `msha-controller-operator-history`.
- **Milan  Lubanko et al → L&G Portable Crushing and Materials:** 2018-05-25 through 2019-12-31; derived from co-tenure at mine 0401696; source `msha-controller-operator-history`.
- **Tim  Greenleaf et al → L&G Portable Crushing and Materials:** 2018-05-25 through 2019-12-31; derived from co-tenure at mine 0401696; source `msha-controller-operator-history`.
- **Milan  Lubanko → L&G Portable Crushing and Materials:** 2020-01-01 through current/open; derived from co-tenure at mine 0401696; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 18
- 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 — 0 since 2021:** Accidents and injuries 25 historical accident/injury rows; 0 coded fatalities and 368 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 126 violation rows across the full record; 35 carry an S&S flag and $65,625 appears in current assessed amounts.
3. **HEALTH — 11 samples:** Occupational health samples 11 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 16 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 5 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 0 since 2021:** Inspections 57 inspection events and 947 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 56.1000 — Notification of commencement of operations and closing of mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.18002 — Examination of working places.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205
- **30 CFR 56.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15004
- **30 CFR 56.15014 — Eye protection when operating grinding wheels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15014
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.11001 — 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 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025

## Source coverage

- **Accident, Injuries, and Illnesses:** 25 rows; 2000-01-12 through 2014-09-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-12-30 through 2019-12-30; source ID `msha-addresses`
- **Assessed Violations:** 125 rows; 2000-01-19 through 2020-02-24; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2011-08-29 through 2011-08-29; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2007-01-29 through 2007-01-29; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2010-04-08 through 2010-04-08; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 263 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 54 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1950-01-01 through 2018-05-25; source ID `msha-controller-operator-history`
- **Inspections:** 57 rows; 2000-01-19 through 2020-02-18; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 156 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:** 11 rows; 2000-08-14 through 2013-06-05; source ID `msha-personal-health-samples`
- **Violations:** 126 rows; 2000-01-19 through 2020-02-24; 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/azusa-quarry-0401696`
- JSON: `/api/v1/mines/azusa-quarry-0401696`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0401696/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0401696/relationships`
- MCP resource: `mine://0401696/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`