# Lapis Plant

- **MSHA mine ID:** 0402843
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Monterey, CA
- **Operator:** Cemex Construction Materials Pacific LLC
- **Controller:** Cemex S A
- **Public source rows linked:** 1,305
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Cemex S A (M09149) → Cemex Construction Materials Pacific LLC (0103149) → Lapis Plant (0402843)**

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

## Controller and operator valid-time history

- **Lone Star Industries Inc → Lone Star Industries Inc:** 1950-01-01 through 1987-12-31; derived from co-tenure at mine 0402843; source `msha-controller-operator-history`.
- **RMC Group PLC → CEMEX:** 1988-01-01 through 2005-02-28; derived from co-tenure at mine 0402843; source `msha-controller-operator-history`.
- **Cemex S A → CEMEX:** 2005-03-01 through 2006-11-30; derived from co-tenure at mine 0402843; source `msha-controller-operator-history`.
- **Cemex S A → Cemex Construction Materials LP:** 2006-12-01 through 2012-11-28; derived from co-tenure at mine 0402843; source `msha-controller-operator-history`.
- **Cemex S A → Cemex Construction Materials Pacific LLC:** 2012-11-29 through current/open; derived from co-tenure at mine 0402843; 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 14 historical accident/injury rows; 0 coded fatalities and 648 lost days across the published record.
2. **COMPLIANCE — 41 since 2021:** Violations and penalties 186 violation rows across the full record; 38 carry an S&S flag and $63,414 appears in current assessed amounts.
3. **HEALTH — 44 samples:** Occupational health samples 44 personal. 7 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 11K employee hours and 23 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 38 linked rows:** Contests, conferences and decisions 13 contested-violation rows, 14 civil-penalty docket/decision rows, and 11 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 — 15 since 2021:** Inspections 84 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 56.20003 — Housekeeping.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.16001 — Stacking and storage of materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16001
- **30 CFR 56.15005 — Safety belts and lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005
- **30 CFR 56.14115 — Stationary grinding machines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14115
- **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 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004

## Source coverage

- **Accident, Injuries, and Illnesses:** 14 rows; 2000-08-03 through 2019-07-05; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-03-11 through 2024-03-11; source ID `msha-addresses`
- **Assessed Violations:** 181 rows; 2001-05-09 through 2023-07-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 14 rows; 2004-01-13 through 2015-05-06; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 11 rows; 2003-12-30 through 2013-12-13; source ID `msha-conferences`
- **Contested Violations:** 13 rows; 2013-10-29 through 2013-11-15; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 566 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 106 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2012-11-29; source ID `msha-controller-operator-history`
- **Inspections:** 84 rows; 2000-07-11 through 2024-03-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 55 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:** 44 rows; 2001-05-09 through 2023-03-01; source ID `msha-personal-health-samples`
- **Violations:** 186 rows; 2001-05-09 through 2023-07-14; 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/lapis-plant-0402843`
- JSON: `/api/v1/mines/lapis-plant-0402843`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0402843/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0402843/relationships`
- MCP resource: `mine://0402843/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`