# Cantera Puerto Ven

- **MSHA mine ID:** 5400455
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Ponce, PR
- **Operator:** Cantera  Puerto Ven, Inc
- **Controller:** Anillo  Alberti-Pruventud; Gian M Alberti-Pruventud
- **Public source rows linked:** 661
- **Source coverage:** 9 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Anillo  Alberti-Pruventud; Gian M Alberti-Pruventud (0135821) → Cantera  Puerto Ven, Inc (0153053) → Cantera Puerto Ven (5400455)**

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

## Controller and operator valid-time history

- **Erick J  Rodriguez → Puerto Ven Quarry, Inc.:** 2004-04-20 through 2005-02-27; derived from co-tenure at mine 5400455; source `msha-controller-operator-history`.
- **Enrique  Golderos → Cantera Gabriela Inc:** 2005-02-28 through 2015-12-27; derived from co-tenure at mine 5400455; source `msha-controller-operator-history`.
- **Meyleen G  Teissonniere → Cantera Real Anon LLC:** 2015-12-28 through 2017-08-27; derived from co-tenure at mine 5400455; source `msha-controller-operator-history`.
- **Gian M Alberti-Pruventud et al → Cantera  Puerto Ven, Inc:** 2017-08-28 through current/open; derived from co-tenure at mine 5400455; source `msha-controller-operator-history`.
- **Anillo  Alberti-Pruventud et al → Cantera  Puerto Ven, Inc:** 2017-08-28 through current/open; derived from co-tenure at mine 5400455; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 40 since 2021:** Violations and penalties 170 violation rows across the full record; 51 carry an S&S flag and $88,605 appears in current assessed amounts.
3. **HEALTH — 9 samples:** Occupational health samples 9 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 2K employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 — 76 since 2021:** Inspections 151 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 56.1000 — 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 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.18010 — First aid.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18010
- **30 CFR 56.23003 — Requirements for written safety program.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-T/section-56.23003
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 56.14103 — 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 56.15001 — First-aid materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15001
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.13015 — Inspection of compressed-air receivers and other unfired pressure vessels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13015
- **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

## Source coverage

- **Addresses of Record:** 1 rows; 2016-01-12 through 2016-01-12; source ID `msha-addresses`
- **Assessed Violations:** 166 rows; 2004-04-20 through 2026-07-29; source ID `msha-assessed-violations`
- **Controller and Operator History:** 5 rows; 2004-04-20 through 2017-08-28; source ID `msha-controller-operator-history`
- **Inspections:** 151 rows; 2004-04-20 through 2026-07-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 122 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 36 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:** 9 rows; 2004-04-20 through 2026-02-03; source ID `msha-personal-health-samples`
- **Violations:** 170 rows; 2004-04-20 through 2026-07-29; 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-puerto-ven-5400455`
- JSON: `/api/v1/mines/cantera-puerto-ven-5400455`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/5400455/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/5400455/relationships`
- MCP resource: `mine://5400455/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`