# Tampa Cement Grinding Plant

- **MSHA mine ID:** 0800159
- **Status:** Active
- **Type / commodity:** Facility / Cement
- **Location:** Hillsborough, FL
- **Operator:** Quikrete Construction Materials LLC
- **Controller:** Quikrete Holdings Inc.
- **Public source rows linked:** 1,825
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Quikrete Holdings Inc. (M12812) → Quikrete Construction Materials LLC (0119988) → Tampa Cement Grinding Plant (0800159)**

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

## Controller and operator valid-time history

- **General Portland Inc → General Portland Inc:** 1950-01-01 through 1981-11-11; derived from co-tenure at mine 0800159; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge Florida Inc:** 1981-11-12 through 2003-08-12; derived from co-tenure at mine 0800159; source `msha-controller-operator-history`.
- **Florida Rock Industries Inc → Florida Rock Industries Inc:** 2003-08-13 through 2007-11-15; derived from co-tenure at mine 0800159; source `msha-controller-operator-history`.
- **Vulcan Materials Company → Florida Rock Industries Inc:** 2007-11-16 through 2014-03-07; derived from co-tenure at mine 0800159; source `msha-controller-operator-history`.
- **Cementos Argos S A → Quikrete Construction Materials LLC:** 2014-03-08 through 2023-01-11; derived from co-tenure at mine 0800159; source `msha-controller-operator-history`.
- **Summit Materials LLC → Quikrete Construction Materials LLC:** 2023-01-12 through 2025-08-03; derived from co-tenure at mine 0800159; source `msha-controller-operator-history`.
- **Quikrete Holdings Inc. → Quikrete Construction Materials LLC:** 2025-08-04 through current/open; derived from co-tenure at mine 0800159; 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 12 since 2021:** Accidents and injuries 37 historical accident/injury rows; 0 coded fatalities and 422 lost days across the published record.
2. **COMPLIANCE — 40 since 2021:** Violations and penalties 300 violation rows across the full record; 61 carry an S&S flag and $72,616 appears in current assessed amounts.
3. **HEALTH — 28 samples:** Occupational health samples 28 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 23K employee hours and 42 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 121 linked rows:** Contests, conferences and decisions 46 contested-violation rows, 56 civil-penalty docket/decision rows, and 19 conference records linked by issuance number.
6. **CONTRACTORS — 10 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 — 19 since 2021:** Inspections 93 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 56.20003 — Housekeeping.** (2 retained recent rows) — 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
- **30 CFR 46.11 — Site-specific hazard awareness training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.11
- **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 56.14112 — 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 56.14109 — Unguarded conveyors with adjacent travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14109
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12068 — Locking transformer enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12068
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 37 rows; 2001-10-04 through 2025-02-19; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1976-04-30 through 1976-04-30; source ID `msha-addresses`
- **Assessed Violations:** 300 rows; 2000-02-24 through 2025-11-04; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 56 rows; 2004-03-01 through 2014-09-02; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 19 rows; 2003-05-23 through 2025-07-29; source ID `msha-conferences`
- **Contested Violations:** 46 rows; 2007-09-25 through 2013-07-18; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 714 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 145 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1950-01-01 through 2014-03-08; source ID `msha-controller-operator-history`
- **Inspections:** 93 rows; 2000-02-24 through 2026-09-29; 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:** 54 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:** 28 rows; 2001-07-26 through 2026-09-30; source ID `msha-personal-health-samples`
- **Violations:** 300 rows; 2000-02-24 through 2025-11-04; 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/tampa-cement-grinding-plant-0800159`
- JSON: `/api/v1/mines/tampa-cement-grinding-plant-0800159`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0800159/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0800159/relationships`
- MCP resource: `mine://0800159/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`