# Weeks Island Mine and Mill

- **MSHA mine ID:** 1600970
- **Status:** Active
- **Type / commodity:** Underground / Salt
- **Location:** Iberia, LA
- **Operator:** Morton Salt Inc
- **Controller:** SCIH Salt Holdings, Inc
- **Public source rows linked:** 14,656
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**SCIH Salt Holdings, Inc (0162861) → Morton Salt Inc (0114165) → Weeks Island Mine and Mill (1600970)**

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

## Controller and operator valid-time history

- **Morton International Inc → Morton Salt Division:** 1980-01-01 through 1999-06-20; derived from co-tenure at mine 1600970; source `msha-controller-operator-history`.
- **Rohm & Haas Company → Morton Salt Div/Morton International Inc:** 1999-06-21 through 2009-03-31; derived from co-tenure at mine 1600970; source `msha-controller-operator-history`.
- **Dow Chemical Company → Morton Salt Div/Morton International Inc:** 2009-04-01 through 2009-09-30; derived from co-tenure at mine 1600970; source `msha-controller-operator-history`.
- **K+S Aktiengesellschaft → Morton Salt Div/Morton International Inc:** 2009-10-01 through 2010-09-30; derived from co-tenure at mine 1600970; source `msha-controller-operator-history`.
- **K+S Aktiengesellschaft → Morton Salt Inc:** 2010-10-01 through 2021-04-29; derived from co-tenure at mine 1600970; source `msha-controller-operator-history`.
- **SCIH Salt Holdings, Inc → Morton Salt Inc:** 2021-04-30 through current/open; derived from co-tenure at mine 1600970; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 15
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 34 since 2021:** Accidents and injuries 171 historical accident/injury rows; 1 coded fatalities and 5,668 lost days across the published record.
2. **COMPLIANCE — 877 since 2021:** Violations and penalties 2,777 violation rows across the full record; 591 carry an S&S flag and $1,878,135 appears in current assessed amounts.
3. **HEALTH — 238 samples:** Occupational health samples 223 personal; 15 area. 3 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 134K employee hours and 223 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 991 linked rows:** Contests, conferences and decisions 424 contested-violation rows, 404 civil-penalty docket/decision rows, and 163 conference records linked by issuance number.
6. **CONTRACTORS — 31 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 — 240 since 2021:** Inspections 779 inspection events and 24K 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 57.22301 — Atmospheric monitoring systems (I-A, II-A, and V-A mines).** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-T/section-57.22301
- **30 CFR 50.10 — Immediate notification.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-B/section-50.10
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.12068 — Locking transformer enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12068
- **30 CFR 57.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14101
- **30 CFR 57.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107
- **30 CFR 57.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12032
- **30 CFR 57.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4201
- **30 CFR 57.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14112
- **30 CFR 57.12034 — Guarding around lights.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12034
- **30 CFR 57.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12019

## Source coverage

- **Accident, Injuries, and Illnesses:** 171 rows; 2000-01-20 through 2026-09-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1983-07-05 through 1983-07-05; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 15 rows; 2010-03-03 through 2026-03-31; source ID `msha-area-samples`
- **Assessed Violations:** 2,732 rows; 2000-01-27 through 2026-09-10; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 404 rows; 2000-09-20 through 2025-07-30; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 163 rows; 2000-05-23 through 2026-07-21; source ID `msha-conferences`
- **Contested Violations:** 424 rows; 2004-08-03 through 2026-05-04; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 5,546 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1,258 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1980-01-01 through 2010-10-01; source ID `msha-controller-operator-history`
- **Inspections:** 779 rows; 2000-01-05 through 2026-09-22; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 48 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 108 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:** 223 rows; 2002-04-24 through 2026-05-27; source ID `msha-personal-health-samples`
- **Violations:** 2,777 rows; 2000-01-27 through 2026-10-08; 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/weeks-island-mine-and-mill-1600970`
- JSON: `/api/v1/mines/weeks-island-mine-and-mill-1600970`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1600970/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1600970/relationships`
- MCP resource: `mine://1600970/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`