# D E Materials

- **MSHA mine ID:** 2902386
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Dona Ana, NM
- **Operator:** D E Ready Mix Inc
- **Controller:** David  Hernandez
- **Public source rows linked:** 521
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**David  Hernandez (M30634) → D E Ready Mix Inc (0097166) → D E Materials (2902386)**

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

## Controller and operator valid-time history

- **David  Hernandez → D E Ready Mix Inc:** 2009-01-13 through current/open; derived from co-tenure at mine 2902386; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 — 26 since 2021:** Violations and penalties 123 violation rows across the full record; 45 carry an S&S flag and $31,313 appears in current assessed amounts.
3. **HEALTH — 6 samples:** Occupational health samples 6 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 416 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 58 linked rows:** Contests, conferences and decisions 29 contested-violation rows, 29 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 — 15 since 2021:** Inspections 44 inspection events and 567 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 56.14132 — Horns and backup alarms.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **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 56.12028 — 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 56.18002 — Examination of working places.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 56.14101 — Brakes.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.23002 — Written safety program.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-T/section-56.23002

## Source coverage

- **Addresses of Record:** 1 rows; 2023-10-25 through 2023-10-25; source ID `msha-addresses`
- **Assessed Violations:** 121 rows; 2009-01-27 through 2026-05-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 29 rows; 2012-01-23 through 2013-11-20; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 29 rows; 2011-06-15 through 2012-08-07; source ID `msha-contested-violations`
- **Controller and Operator History:** 1 rows; 2009-01-13 through 2009-01-13; source ID `msha-controller-operator-history`
- **Inspections:** 44 rows; 2009-01-26 through 2026-06-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 130 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:** 6 rows; 2009-01-28 through 2011-09-14; source ID `msha-personal-health-samples`
- **Violations:** 123 rows; 2009-01-27 through 2026-05-28; 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/d-e-materials-2902386`
- JSON: `/api/v1/mines/d-e-materials-2902386`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2902386/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2902386/relationships`
- MCP resource: `mine://2902386/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`