# Krome Quarry

- **MSHA mine ID:** 0801015
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Miami-Dade, FL
- **Operator:** CEMEX Construction Materials Florida, LLC
- **Controller:** Cemex S A
- **Public source rows linked:** 2,520
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Cemex S A (M09149) → CEMEX Construction Materials Florida, LLC (0106585) → Krome Quarry (0801015)**

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

## Controller and operator valid-time history

- **David E  Coay → Krome Aggregates Inc:** 1984-05-01 through 1988-07-19; derived from co-tenure at mine 0801015; source `msha-controller-operator-history`.
- **CSR Ltd → Rinker Materials Of Florida Inc:** 1988-07-20 through 2003-03-31; derived from co-tenure at mine 0801015; source `msha-controller-operator-history`.
- **Rinker Group Ltd → Rinker Materials Of Florida Inc:** 2003-04-01 through 2007-07-09; derived from co-tenure at mine 0801015; source `msha-controller-operator-history`.
- **Cemex S A → Rinker Materials Of Florida Inc:** 2007-07-10 through 2008-12-03; derived from co-tenure at mine 0801015; source `msha-controller-operator-history`.
- **Cemex S A → CEMEX Construction Materials Florida, LLC:** 2008-12-04 through current/open; derived from co-tenure at mine 0801015; 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 — 4 since 2021:** Accidents and injuries 30 historical accident/injury rows; 0 coded fatalities and 698 lost days across the published record.
2. **COMPLIANCE — 22 since 2021:** Violations and penalties 164 violation rows across the full record; 30 carry an S&S flag and $26,322 appears in current assessed amounts.
3. **HEALTH — 42 samples:** Occupational health samples 42 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 36K employee hours and 54 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 19 linked rows:** Contests, conferences and decisions 8 contested-violation rows, 8 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.
6. **CONTRACTORS — 13 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 — 17 since 2021:** Inspections 82 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 56.14107 — 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 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 46.3 — Training plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.3
- **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
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.12018 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 30 rows; 2000-06-13 through 2025-04-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2008-12-04 through 2008-12-04; source ID `msha-addresses`
- **Assessed Violations:** 163 rows; 2000-01-28 through 2026-07-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2010-11-19 through 2015-03-27; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 3 rows; 2004-07-06 through 2020-01-28; source ID `msha-conferences`
- **Contested Violations:** 8 rows; 2009-02-18 through 2014-10-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,338 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 276 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1984-05-01 through 2008-12-04; source ID `msha-controller-operator-history`
- **Inspections:** 82 rows; 2000-01-28 through 2026-07-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 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:** 42 rows; 2002-01-29 through 2025-03-26; source ID `msha-personal-health-samples`
- **Violations:** 164 rows; 2000-01-28 through 2026-07-16; 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/krome-quarry-0801015`
- JSON: `/api/v1/mines/krome-quarry-0801015`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0801015/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0801015/relationships`
- MCP resource: `mine://0801015/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`