# Greenstone Materials Quarry

- **MSHA mine ID:** 0403299
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Orange, CA
- **Operator:** Greenstone Materials, Inc.
- **Controller:** Rich  Holt
- **Public source rows linked:** 261
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Rich  Holt (0097253) → Greenstone Materials, Inc. (0114725) → Greenstone Materials Quarry (0403299)**

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

## Controller and operator valid-time history

- **Fred G Jones → Ortega Rock Company:** 1950-01-01 through 1984-05-14; derived from co-tenure at mine 0403299; source `msha-controller-operator-history`.
- **John R Schmutz et al → Ortega Rock Quarry:** 1984-05-15 through 2010-03-31; derived from co-tenure at mine 0403299; source `msha-controller-operator-history`.
- **Paul J Hubbs et al → Ortega Rock Quarry:** 1984-05-15 through 2010-03-31; derived from co-tenure at mine 0403299; source `msha-controller-operator-history`.
- **James A  Canger et al → Tabosa Stone, Inc.:** 2010-04-01 through 2012-02-29; derived from co-tenure at mine 0403299; source `msha-controller-operator-history`.
- **Rich  Holt → Greenstone Materials, Inc.:** 2012-03-01 through current/open; derived from co-tenure at mine 0403299; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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: 2026-10-17T05:35:58.500035+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 — 34 since 2021:** Violations and penalties 82 violation rows across the full record; 19 carry an S&S flag and $24,700 appears in current assessed amounts.
3. **HEALTH — 4 samples:** Occupational health samples 4 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 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 17 linked rows:** Contests, conferences and decisions 4 contested-violation rows, 4 civil-penalty docket/decision rows, and 9 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 — 14 since 2021:** Inspections 36 inspection events and 559 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 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **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 56.14112 — Construction and maintenance of guards.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **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 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **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 56.11003 — 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 56.15001 — First-aid materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15001

## Source coverage

- **Addresses of Record:** 1 rows; 2015-10-01 through 2015-10-01; source ID `msha-addresses`
- **Assessed Violations:** 82 rows; 2000-05-03 through 2026-08-20; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 4 rows; 2016-10-12 through 2023-06-13; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 9 rows; 2016-09-23 through 2024-09-06; source ID `msha-conferences`
- **Contested Violations:** 4 rows; 2016-03-29 through 2023-02-02; source ID `msha-contested-violations`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2012-03-01; source ID `msha-controller-operator-history`
- **Inspections:** 36 rows; 2000-05-03 through 2026-08-20; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 4 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 29 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:** 4 rows; 2015-02-12 through 2024-11-07; source ID `msha-personal-health-samples`
- **Violations:** 82 rows; 2000-05-03 through 2026-08-20; 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/greenstone-materials-quarry-0403299`
- JSON: `/api/v1/mines/greenstone-materials-quarry-0403299`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0403299/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0403299/relationships`
- MCP resource: `mine://0403299/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`