# PLANT 15

- **MSHA mine ID:** 1601550
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Livingston, LA
- **Operator:** SOUTHERN AGGREGATES LLC
- **Controller:** Arcosa, Inc
- **Public source rows linked:** 135
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Arcosa, Inc (0144281) → SOUTHERN AGGREGATES LLC (0094765) → PLANT 15 (1601550)**

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

## Controller and operator valid-time history

- **VantaCore Partners LP et al → SOUTHERN AGGREGATES LLC:** 2015-04-10 through 2018-12-10; derived from co-tenure at mine 1601550; source `msha-controller-operator-history`.
- **Sun Capital Partners Inc → SOUTHERN AGGREGATES LLC:** 2018-12-11 through 2021-04-05; derived from co-tenure at mine 1601550; source `msha-controller-operator-history`.
- **Arcosa, Inc → SOUTHERN AGGREGATES LLC:** 2021-04-06 through current/open; derived from co-tenure at mine 1601550; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- 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 — 0 since 2021:** Violations and penalties 5 violation rows across the full record; 0 carry an S&S flag and $544 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 5 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 6 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 0 since 2021:** Inspections 6 inspection events and 55 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 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
- **30 CFR 47.41 — Requirement for container labels.** (2 retained recent rows) — 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 56.9100 — Traffic control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9100

## Source coverage

- **Addresses of Record:** 1 rows; 2017-12-05 through 2017-12-05; source ID `msha-addresses`
- **Assessed Violations:** 5 rows; 2015-06-09 through 2017-04-04; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2016-04-20 through 2017-06-28; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 3 rows; 2015-06-09 through 2016-10-27; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 59 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 21 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2015-04-10 through 2015-04-10; source ID `msha-controller-operator-history`
- **Inspections:** 6 rows; 2015-06-09 through 2017-12-20; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 22 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 6 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 5 rows; 2015-06-09 through 2017-04-04; 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/plant-15-1601550`
- JSON: `/api/v1/mines/plant-15-1601550`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1601550/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1601550/relationships`
- MCP resource: `mine://1601550/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`