# Alvarado Sand and Gravel #2

- **MSHA mine ID:** 4105784
- **Status:** Intermittent
- **Type / commodity:** Surface / Sand, Common
- **Location:** Johnson, TX
- **Operator:** Alvarado Sand and Gravel LLC
- **Controller:** Pedro  Martinez
- **Public source rows linked:** 26
- **Source coverage:** 8 / 20
- **Generated:** 2026-10-18T09:31:49.615Z

## Current entity hierarchy

**Pedro  Martinez (0123641) → Alvarado Sand and Gravel LLC (0143894) → Alvarado Sand and Gravel #2 (4105784)**

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

## Controller and operator valid-time history

- **Pedro  Martinez → Alvarado Sand and Gravel LLC:** 2025-03-17 through current/open; derived from co-tenure at mine 4105784; 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: 2026-10-18T09:31:49.615908+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 — 3 since 2021:** Violations and penalties 3 violation rows across the full record; 0 carry an S&S flag and $453 appears in current assessed amounts.
3. **HEALTH — 0 samples:** Occupational health samples No published samples. 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 3K 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 — 2 since 2021:** Inspections 2 inspection events and 9 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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **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 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

## Source coverage

- **Addresses of Record:** 1 rows; 2025-03-17 through 2025-03-17; source ID `msha-addresses`
- **Assessed Violations:** 3 rows; 2025-06-04 through 2025-11-04; source ID `msha-assessed-violations`
- **Controller and Operator History:** 1 rows; 2025-03-17 through 2025-03-17; source ID `msha-controller-operator-history`
- **Inspections:** 2 rows; 2025-06-04 through 2025-11-04; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 11 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 4 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 3 rows; 2025-06-04 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/alvarado-sand-and-gravel-2-4105784`
- JSON: `/api/v1/mines/alvarado-sand-and-gravel-2-4105784`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4105784/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4105784/relationships`
- MCP resource: `mine://4105784/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`