# CANTERA CARRAIZO

- **MSHA mine ID:** 5400019
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Bayamon, PR
- **Operator:** Cantera Carraizo Inc
- **Controller:** Alfonso M  Diaz Jr
- **Public source rows linked:** 1,194
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alfonso M  Diaz Jr (0155361) → Cantera Carraizo Inc (L12778) → CANTERA CARRAIZO (5400019)**

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

## Controller and operator valid-time history

- **Alfonso M  Diaz → Cantera Carraizo Inc:** 1950-01-01 through 2012-04-30; derived from co-tenure at mine 5400019; source `msha-controller-operator-history`.
- **Milagros D  Merheb → Cantera Carraizo Inc:** 2012-05-01 through 2019-02-19; derived from co-tenure at mine 5400019; source `msha-controller-operator-history`.
- **Alfonso M  Diaz Jr → Cantera Carraizo Inc:** 2019-02-20 through current/open; derived from co-tenure at mine 5400019; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- 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 — 16 since 2021:** Accidents and injuries 47 historical accident/injury rows; 0 coded fatalities and 1,598 lost days across the published record.
2. **COMPLIANCE — 50 since 2021:** Violations and penalties 194 violation rows across the full record; 73 carry an S&S flag and $62,462 appears in current assessed amounts.
3. **HEALTH — 92 samples:** Occupational health samples 92 personal. 2 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 23K employee hours and 43 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 56 linked rows:** Contests, conferences and decisions 28 contested-violation rows, 28 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 62 since 2021:** Inspections 190 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 50.20-1 — General instructions for completing MSHA Form 7000-1.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-1
- **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 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 46.7 — New task training.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **30 CFR 56.14105 — Procedures during repairs or maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14105
- **30 CFR 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **30 CFR 56.9101 — Operating speeds and control of equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9101
- **30 CFR 56.14103 — Operators stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 47 rows; 2000-01-19 through 2025-09-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1975-12-01 through 1975-12-01; source ID `msha-addresses`
- **Assessed Violations:** 189 rows; 2000-06-13 through 2026-08-18; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 28 rows; 2012-02-09 through 2024-03-07; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 28 rows; 2011-03-02 through 2023-09-06; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 19 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 4 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 190 rows; 2000-06-13 through 2026-08-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 317 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:** 92 rows; 2002-08-06 through 2026-04-16; source ID `msha-personal-health-samples`
- **Violations:** 194 rows; 2000-06-13 through 2026-08-18; 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/cantera-carraizo-5400019`
- JSON: `/api/v1/mines/cantera-carraizo-5400019`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/5400019/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/5400019/relationships`
- MCP resource: `mine://5400019/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`