# Banning

- **MSHA mine ID:** 0402815
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Riverside, CA
- **Operator:** Robertson's
- **Controller:** RRM Development Corporation; Mitsubishi Corp
- **Public source rows linked:** 583
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**RRM Development Corporation; Mitsubishi Corp (M11611) → Robertson's (L14361) → Banning (0402815)**

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

## Controller and operator valid-time history

- **Matich Corp → Beckham Brothers Ready Mix:** 1950-01-01 through 1991-01-29; derived from co-tenure at mine 0402815; source `msha-controller-operator-history`.
- **Thomas L  Daniel → Beaumont Concrete Company:** 1991-01-30 through 1998-11-30; derived from co-tenure at mine 0402815; source `msha-controller-operator-history`.
- **RRM Development Corporation et al → Robertson's:** 1998-12-01 through current/open; derived from co-tenure at mine 0402815; source `msha-controller-operator-history`.
- **Mitsubishi Corp  et al → Robertson's:** 1998-12-01 through current/open; derived from co-tenure at mine 0402815; source `msha-controller-operator-history`.

- History rows: 4
- 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 — 6 since 2021:** Accidents and injuries 16 historical accident/injury rows; 0 coded fatalities and 503 lost days across the published record.
2. **COMPLIANCE — 10 since 2021:** Violations and penalties 96 violation rows across the full record; 22 carry an S&S flag and $42,289 appears in current assessed amounts.
3. **HEALTH — 17 samples:** Occupational health samples 17 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 5K employee hours and 11 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 4 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 — 26 since 2021:** Inspections 78 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 56.12004 — 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 56.14112 — Construction and maintenance of guards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.4430 — Storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4430
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **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 56.9100 — Traffic control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9100
- **30 CFR 56.9101 — Operating speeds and control of equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9101
- **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 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:** 16 rows; 2001-03-20 through 2024-03-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2017-07-17 through 2017-07-17; source ID `msha-addresses`
- **Assessed Violations:** 95 rows; 2001-06-20 through 2025-09-10; source ID `msha-assessed-violations`
- **Conferences:** 4 rows; 2010-08-02 through 2015-01-23; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 16 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:** 4 rows; 1950-01-01 through 1998-12-01; source ID `msha-controller-operator-history`
- **Inspections:** 78 rows; 2001-06-20 through 2026-08-24; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 212 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 41 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:** 17 rows; 2002-03-21 through 2023-08-25; source ID `msha-personal-health-samples`
- **Violations:** 96 rows; 2001-06-20 through 2025-09-10; 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/banning-0402815`
- JSON: `/api/v1/mines/banning-0402815`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0402815/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0402815/relationships`
- MCP resource: `mine://0402815/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`