# Sierra White

- **MSHA mine ID:** 0400232
- **Status:** Active
- **Type / commodity:** Surface / Dimension Stone NEC
- **Location:** Madera, CA
- **Operator:** Cold Spring Granite Company
- **Controller:** Patrick  Alexander; Michael  O'Connor
- **Public source rows linked:** 593
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Patrick  Alexander; Michael  O'Connor (0184723) → Cold Spring Granite Company (L00067) → Sierra White (0400232)**

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

## Controller and operator valid-time history

- **Patrick  Alexander → Cold Spring Granite Company:** 1950-01-01 through 2024-05-20; derived from co-tenure at mine 0400232; source `msha-controller-operator-history`.
- **Michael  O'Connor → Cold Spring Granite Company:** 2024-05-21 through current/open; derived from co-tenure at mine 0400232; source `msha-controller-operator-history`.
- **Patrick  Alexander → Cold Spring Granite Company:** 2024-05-21 through current/open; derived from co-tenure at mine 0400232; 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 — 3 since 2021:** Accidents and injuries 15 historical accident/injury rows; 0 coded fatalities and 78 lost days across the published record.
2. **COMPLIANCE — 16 since 2021:** Violations and penalties 87 violation rows across the full record; 16 carry an S&S flag and $11,929 appears in current assessed amounts.
3. **HEALTH — 27 samples:** Occupational health samples 27 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 3K employee hours and 10 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 9 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 3 civil-penalty docket/decision rows, and 6 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 — 15 since 2021:** Inspections 65 inspection events and 1K 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 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.13015 — Inspection of compressed-air receivers and other unfired pressure vessels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13015
- **30 CFR 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.11003 — Construction and maintenance of ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11003
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.15005 — Safety belts and lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005

## Source coverage

- **Accident, Injuries, and Illnesses:** 15 rows; 2000-08-22 through 2024-05-06; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1975-02-05 through 1975-02-05; source ID `msha-addresses`
- **Assessed Violations:** 87 rows; 2000-01-04 through 2026-03-12; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2002-01-28 through 2002-01-28; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 6 rows; 2000-05-31 through 2024-04-24; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 28 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 7 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 65 rows; 2000-01-04 through 2026-06-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 210 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 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:** 27 rows; 2001-03-15 through 2026-03-17; source ID `msha-personal-health-samples`
- **Violations:** 87 rows; 2000-01-04 through 2026-03-12; 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/sierra-white-0400232`
- JSON: `/api/v1/mines/sierra-white-0400232`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0400232/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0400232/relationships`
- MCP resource: `mine://0400232/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`