# CHRISTIE BAR

- **MSHA mine ID:** 0401760
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Humboldt, CA
- **Operator:** Eureka Sand & Gravel Co. Inc.
- **Controller:** Robert C  McLaughlin; Michael J  McLaughlin
- **Public source rows linked:** 644
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Robert C  McLaughlin; Michael J  McLaughlin (M04596) → Eureka Sand & Gravel Co. Inc. (L05691) → CHRISTIE BAR (0401760)**

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

## Controller and operator valid-time history

- **Robert C  McLaughlin et al → Eureka Sand & Gravel Co. Inc.:** 1950-01-01 through current/open; derived from co-tenure at mine 0401760; source `msha-controller-operator-history`.
- **Michael J  McLaughlin et al → Eureka Sand & Gravel Co. Inc.:** 1950-01-01 through current/open; derived from co-tenure at mine 0401760; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 4
- 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 1 historical accident/injury rows; 0 coded fatalities and 79 lost days across the published record.
2. **COMPLIANCE — 17 since 2021:** Violations and penalties 91 violation rows across the full record; 24 carry an S&S flag and $13,960 appears in current assessed amounts.
3. **HEALTH — 14 samples:** Occupational health samples 14 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 1K employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 19 linked rows:** Contests, conferences and decisions 8 contested-violation rows, 8 civil-penalty docket/decision rows, and 3 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 881 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 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **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 46.8 — Annual refresher training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.8
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **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 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.4230 — Self-propelled equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4230
- **30 CFR 46.7 — New task training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **30 CFR 56.14103 — Operators stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2013-04-03 through 2013-04-03; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1990-11-05 through 1990-11-05; source ID `msha-addresses`
- **Assessed Violations:** 90 rows; 2001-01-10 through 2026-04-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2011-11-21 through 2013-02-27; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 3 rows; 2010-12-22 through 2010-12-22; source ID `msha-conferences`
- **Contested Violations:** 8 rows; 2010-01-11 through 2012-10-03; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 83 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 23 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 65 rows; 2000-06-14 through 2026-09-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 200 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 14 rows; 2009-07-10 through 2026-09-15; source ID `msha-personal-health-samples`
- **Violations:** 91 rows; 2001-01-10 through 2026-04-29; 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/christie-bar-0401760`
- JSON: `/api/v1/mines/christie-bar-0401760`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0401760/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0401760/relationships`
- MCP resource: `mine://0401760/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`