# CAMPUS PLANT

- **MSHA mine ID:** 0401987
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** San Bernardino, CA
- **Operator:** Holliday Rock Company Inc
- **Controller:** Penny J  Holliday
- **Public source rows linked:** 799
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Penny J  Holliday (M00110) → Holliday Rock Company Inc (L01650) → CAMPUS PLANT (0401987)**

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

## Controller and operator valid-time history

- **Penny J  Holliday et al → Holliday Rock Company Inc:** 1950-01-01 through current/open; derived from co-tenure at mine 0401987; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 — 5 since 2021:** Accidents and injuries 18 historical accident/injury rows; 0 coded fatalities and 141 lost days across the published record.
2. **COMPLIANCE — 25 since 2021:** Violations and penalties 197 violation rows across the full record; 54 carry an S&S flag and $41,405 appears in current assessed amounts.
3. **HEALTH — 24 samples:** Occupational health samples 24 personal. 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 9K employee hours and 17 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 16 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 12 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 27 since 2021:** Inspections 84 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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **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 46.6 — Newly hired experienced miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.6
- **30 CFR 56.15007 — Protective equipment or clothing for welding, cutting, or working with molten metal.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15007
- **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
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205
- **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 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **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 56.20010 — Retaining dams.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20010

## Source coverage

- **Accident, Injuries, and Illnesses:** 18 rows; 2003-05-06 through 2026-03-24; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2003-05-29 through 2003-05-29; source ID `msha-addresses`
- **Assessed Violations:** 194 rows; 2000-03-13 through 2026-02-04; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2006-07-12 through 2011-08-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 12 rows; 2006-02-08 through 2026-09-23; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2006-02-02 through 2010-10-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 7 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 2 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 84 rows; 2000-03-13 through 2026-08-24; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 205 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 49 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:** 24 rows; 2001-07-11 through 2026-08-26; source ID `msha-personal-health-samples`
- **Violations:** 197 rows; 2000-03-13 through 2026-08-26; 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/campus-plant-0401987`
- JSON: `/api/v1/mines/campus-plant-0401987`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0401987/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0401987/relationships`
- MCP resource: `mine://0401987/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`