# Rock Ridge Quarries

- **MSHA mine ID:** 0202843
- **Status:** Active
- **Type / commodity:** Surface / Dimension Stone NEC
- **Location:** Yavapai, AZ
- **Operator:** ROCK RIDGE QUARRIES, INC.
- **Controller:** Leslie D Briggs
- **Public source rows linked:** 414
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Leslie D Briggs (0171460) → ROCK RIDGE QUARRIES, INC. (0062190) → Rock Ridge Quarries (0202843)**

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

## Controller and operator valid-time history

- **Richard  Gutierrez et al → 3 Winns Quarry's:** 1999-09-01 through 2005-07-18; derived from co-tenure at mine 0202843; source `msha-controller-operator-history`.
- **Lola  Gutierrez et al → 3 Winns Quarry's:** 1999-09-01 through 2005-07-18; derived from co-tenure at mine 0202843; source `msha-controller-operator-history`.
- **Robert J  Briggs → ROCK RIDGE QUARRIES, INC.:** 2005-07-19 through 2021-12-31; derived from co-tenure at mine 0202843; source `msha-controller-operator-history`.
- **Leslie D Briggs → ROCK RIDGE QUARRIES, INC.:** 2022-01-01 through current/open; derived from co-tenure at mine 0202843; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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 27 historical accident/injury rows; 0 coded fatalities and 797 lost days across the published record.
2. **COMPLIANCE — 3 since 2021:** Violations and penalties 112 violation rows across the full record; 35 carry an S&S flag and $28,818 appears in current assessed amounts.
3. **HEALTH — 15 samples:** Occupational health samples 15 personal. 1 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 — 14 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 12 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 — 9 since 2021:** Inspections 75 inspection events and 830 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 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 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
- **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 56.4201 — 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 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 56.18002 — 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 56.11001 — 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 56.14100 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 27 rows; 2002-09-26 through 2015-08-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-10-23 through 2025-10-23; source ID `msha-addresses`
- **Assessed Violations:** 109 rows; 2002-07-31 through 2024-07-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2006-02-09 through 2006-02-09; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 12 rows; 2005-08-15 through 2005-08-15; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2005-07-19 through 2005-07-19; source ID `msha-contested-violations`
- **Controller and Operator History:** 4 rows; 1999-09-01 through 2005-07-19; source ID `msha-controller-operator-history`
- **Inspections:** 75 rows; 2000-01-20 through 2026-07-07; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 23 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 33 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:** 15 rows; 2009-09-22 through 2026-02-23; source ID `msha-personal-health-samples`
- **Violations:** 112 rows; 2001-06-18 through 2024-07-16; 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/rock-ridge-quarries-0202843`
- JSON: `/api/v1/mines/rock-ridge-quarries-0202843`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0202843/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0202843/relationships`
- MCP resource: `mine://0202843/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`