# SQMC 2

- **MSHA mine ID:** 4105597
- **Status:** Active
- **Type / commodity:** Surface / Sand, Common
- **Location:** Maverick, TX
- **Operator:** Select Quality Materials and Concrete
- **Controller:** Ruben  Garibay
- **Public source rows linked:** 228
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Ruben  Garibay (0175101) → Select Quality Materials and Concrete (0180093) → SQMC 2 (4105597)**

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

## Controller and operator valid-time history

- **Ruben  Garibay et al → Select Quality Materials and Concrete:** 2022-01-07 through 2023-01-07; derived from co-tenure at mine 4105597; source `msha-controller-operator-history`.
- **Arturo  Morales et al → Select Quality Materials and Concrete:** 2022-01-07 through 2023-01-07; derived from co-tenure at mine 4105597; source `msha-controller-operator-history`.
- **Ruben  Garibay → Select Quality Materials and Concrete:** 2023-01-08 through current/open; derived from co-tenure at mine 4105597; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 6
- 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 — 78 since 2021:** Violations and penalties 78 violation rows across the full record; 9 carry an S&S flag and $24,515 appears in current assessed amounts.
3. **HEALTH — 1 samples:** Occupational health samples 1 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 2K employee hours and 5 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 26 linked rows:** Contests, conferences and decisions 13 contested-violation rows, 13 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 — 17 since 2021:** Inspections 17 inspection events and 261 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 56.14100 — 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 56.14103 — Operators stations.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103
- **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 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 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.16003 — Storage of hazardous materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16003
- **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 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300

## Source coverage

- **Addresses of Record:** 1 rows; 2022-06-13 through 2022-06-13; source ID `msha-addresses`
- **Assessed Violations:** 78 rows; 2022-02-08 through 2026-04-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 13 rows; 2025-03-19 through 2025-03-19; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 13 rows; 2024-04-02 through 2024-04-04; source ID `msha-contested-violations`
- **Controller and Operator History:** 3 rows; 2022-01-07 through 2022-01-07; source ID `msha-controller-operator-history`
- **Inspections:** 17 rows; 2022-02-07 through 2026-05-07; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 18 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 5 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:** 1 rows; 2025-04-02 through 2025-04-02; source ID `msha-personal-health-samples`
- **Violations:** 78 rows; 2022-02-08 through 2026-04-29; 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/sqmc-2-4105597`
- JSON: `/api/v1/mines/sqmc-2-4105597`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4105597/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4105597/relationships`
- MCP resource: `mine://4105597/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`