# VALLEY SALT

- **MSHA mine ID:** 0405950
- **Status:** Active
- **Type / commodity:** Surface / Salt
- **Location:** San Bernardino, CA
- **Operator:** WEST COAST AGGREGATE SUPPLY INC.
- **Controller:** John R  Struiksma
- **Public source rows linked:** 174
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**John R  Struiksma (0197580) → WEST COAST AGGREGATE SUPPLY INC. (L17526) → VALLEY SALT (0405950)**

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

## Controller and operator valid-time history

- **Terry  Walker et al → Valley Salt LLC:** 2020-10-15 through 2022-08-31; derived from co-tenure at mine 0405950; source `msha-controller-operator-history`.
- **Jerry  Coleman → Valley Salt LLC:** 2020-10-15 through 2022-08-31; derived from co-tenure at mine 0405950; source `msha-controller-operator-history`.
- **Gary A Pedersen et al → Valley Salt LLC:** 2020-10-15 through 2022-08-31; derived from co-tenure at mine 0405950; source `msha-controller-operator-history`.
- **Marvin J  Struiksma et al → West Coast Aggregate Supply Inc.:** 2022-09-01 through 2026-01-26; derived from co-tenure at mine 0405950; source `msha-controller-operator-history`.
- **John R  Struiksma et al → West Coast Aggregate Supply Inc.:** 2026-01-27 through current/open; derived from co-tenure at mine 0405950; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 10
- 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 — 24 since 2021:** Violations and penalties 40 violation rows across the full record; 19 carry an S&S flag and $19,702 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 4K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 22 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 11 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 — 12 since 2021:** Inspections 14 inspection events and 404 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 48.26 — Experienced miner training.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.26
- **30 CFR 48.23 — Training plans; time of submission; where filed; information required; time for approval; method for disapproval; commencement of training; approval of instructors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.23
- **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 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **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 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12013 — Splices and repairs of power cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12013
- **30 CFR 56.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4601
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **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

## Source coverage

- **Addresses of Record:** 1 rows; 2020-10-20 through 2020-10-20; source ID `msha-addresses`
- **Assessed Violations:** 39 rows; 2020-10-15 through 2024-03-06; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2021-06-25 through 2021-06-25; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 11 rows; 2020-11-05 through 2020-11-05; source ID `msha-contested-violations`
- **Controller and Operator History:** 5 rows; 2020-10-15 through 2022-09-01; source ID `msha-controller-operator-history`
- **Inspections:** 14 rows; 2020-10-15 through 2026-05-11; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 38 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 14 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 40 rows; 2020-10-15 through 2024-03-06; 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/valley-salt-0405950`
- JSON: `/api/v1/mines/valley-salt-0405950`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0405950/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0405950/relationships`
- MCP resource: `mine://0405950/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`