# DEERFIELD SAND

- **MSHA mine ID:** 3800127
- **Status:** Active
- **Type / commodity:** Surface / Sand, Common
- **Location:** Jasper, SC
- **Operator:** CEMEX Construction Materials Florida, LLC
- **Controller:** Cemex S A
- **Public source rows linked:** 742
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Cemex S A (M09149) → CEMEX Construction Materials Florida, LLC (0106585) → DEERFIELD SAND (3800127)**

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

## Controller and operator valid-time history

- **W Perry  Gill → Deerfield Sand & Mining Company Inc:** 1950-01-01 through 1988-07-27; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.
- **CSR Ltd → Rinker Materials Corp:** 1988-07-28 through 2001-09-30; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.
- **CSR Ltd → Rinker Materials of FL Inc:** 2001-10-01 through 2003-03-31; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.
- **Rinker Group Ltd → Rinker Materials Corp:** 2003-04-01 through 2001-09-30; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.
- **Rinker Group Ltd → Rinker Materials of FL Inc:** 2003-04-01 through 2007-07-09; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.
- **Cemex S A → Rinker Materials Corp:** 2007-07-10 through 2001-09-30; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.
- **Cemex S A → Rinker Materials of FL Inc:** 2007-07-10 through 2008-12-18; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.
- **Cemex S A → CEMEX Construction Materials Florida, LLC:** 2008-12-19 through current/open; derived from co-tenure at mine 3800127; source `msha-controller-operator-history`.

- History rows: 8
- Typed edges: 18
- Interval anomalies: 2
- 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 4 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 3 since 2021:** Violations and penalties 50 violation rows across the full record; 9 carry an S&S flag and $12,040 appears in current assessed amounts.
3. **HEALTH — 23 samples:** Occupational health samples 23 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 5K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 65 inspection events and 905 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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.14206 — Securing movable parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14206
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.4600 — Extinguishing equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4600
- **30 CFR 56.12020 — Protection of persons at switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12020
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100

## Source coverage

- **Accident, Injuries, and Illnesses:** 4 rows; 2001-02-23 through 2007-09-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1978-12-18 through 1978-12-18; source ID `msha-addresses`
- **Assessed Violations:** 50 rows; 2000-04-04 through 2025-07-08; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2013-09-17 through 2020-03-12; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 2 rows; 2011-05-03 through 2019-09-13; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 252 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 67 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 8 rows; 1950-01-01 through 2008-12-19; source ID `msha-controller-operator-history`
- **Inspections:** 65 rows; 2000-04-04 through 2026-07-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 176 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 41 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:** 23 rows; 2000-11-01 through 2025-12-31; source ID `msha-personal-health-samples`
- **Violations:** 50 rows; 2000-04-04 through 2025-07-08; 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/deerfield-sand-3800127`
- JSON: `/api/v1/mines/deerfield-sand-3800127`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3800127/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3800127/relationships`
- MCP resource: `mine://3800127/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`