# SOUTH LIBERTY PLANT

- **MSHA mine ID:** 4105801
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Liberty, TX
- **Operator:** BLUEBONNET MATERIALS LLC
- **Controller:** Scott  Spinella
- **Public source rows linked:** 31
- **Source coverage:** 7 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Scott  Spinella (0190061) → BLUEBONNET MATERIALS LLC (0162133) → SOUTH LIBERTY PLANT (4105801)**

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

## Controller and operator valid-time history

- **John G  Kissane et al → BLUEBONNET MATERIALS LLC:** 2025-05-20 through 2025-01-26; derived from co-tenure at mine 4105801; source `msha-controller-operator-history`.
- **Scott  Spinella et al → BLUEBONNET MATERIALS LLC:** 2025-05-20 through 2025-01-26; derived from co-tenure at mine 4105801; source `msha-controller-operator-history`.
- **Scott  Spinella → BLUEBONNET MATERIALS LLC:** 2025-05-20 through current/open; derived from co-tenure at mine 4105801; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 6
- 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: 2026-10-17T05:35:58.500035+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 — 10 since 2021:** Violations and penalties 10 violation rows across the full record; 0 carry an S&S flag and $1,510 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
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 — 4 since 2021:** Inspections 4 inspection events and 56 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 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **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 56.9300 — 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
- **30 CFR 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **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 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200

## Source coverage

- **Addresses of Record:** 1 rows; 2025-06-01 through 2025-06-01; source ID `msha-addresses`
- **Assessed Violations:** 10 rows; 2025-07-07 through 2026-08-05; source ID `msha-assessed-violations`
- **Controller and Operator History:** 3 rows; 2025-05-20 through 2025-05-20; source ID `msha-controller-operator-history`
- **Inspections:** 4 rows; 2025-07-07 through 2026-08-13; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 2 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 10 rows; 2025-07-07 through 2026-08-05; 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/south-liberty-plant-4105801`
- JSON: `/api/v1/mines/south-liberty-plant-4105801`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4105801/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4105801/relationships`
- MCP resource: `mine://4105801/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`