# Topaz Mine

- **MSHA mine ID:** 2602440
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Clark, NV
- **Operator:** Precision Aggregate Products LLC
- **Controller:** Mastec Inc
- **Public source rows linked:** 677
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Mastec Inc (0160661) → Precision Aggregate Products LLC (L17864) → Topaz Mine (2602440)**

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

## Controller and operator valid-time history

- **Scott L  Bulloch et al → Precision Aggregate Products LLC:** 2000-11-01 through 2022-08-18; derived from co-tenure at mine 2602440; source `msha-controller-operator-history`.
- **Travis O  Eaton et al → Precision Aggregate Products LLC:** 2000-11-01 through 2022-08-18; derived from co-tenure at mine 2602440; source `msha-controller-operator-history`.
- **Mastec Inc → Precision Aggregate Products LLC:** 2022-08-19 through current/open; derived from co-tenure at mine 2602440; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 6
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 17 since 2021:** Violations and penalties 183 violation rows across the full record; 34 carry an S&S flag and $44,294 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 4K employee hours and 9 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 12 linked rows:** Contests, conferences and decisions 5 contested-violation rows, 5 civil-penalty docket/decision rows, and 2 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 — 12 since 2021:** Inspections 64 inspection events and 882 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 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 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 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **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 56.11012 — 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 56.14100 — 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 56.14207 — 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 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

## Source coverage

- **Addresses of Record:** 1 rows; 2019-10-01 through 2019-10-01; source ID `msha-addresses`
- **Assessed Violations:** 181 rows; 2001-02-15 through 2024-07-18; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2012-08-01 through 2012-08-01; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2023-04-24 through 2023-04-24; source ID `msha-conferences`
- **Contested Violations:** 5 rows; 2010-07-27 through 2010-07-27; source ID `msha-contested-violations`
- **Controller and Operator History:** 3 rows; 2000-11-01 through 2000-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 64 rows; 2001-01-31 through 2026-04-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 171 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 46 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; 2002-06-12 through 2025-04-29; source ID `msha-personal-health-samples`
- **Violations:** 183 rows; 2001-02-15 through 2024-07-18; 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/topaz-mine-2602440`
- JSON: `/api/v1/mines/topaz-mine-2602440`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602440/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602440/relationships`
- MCP resource: `mine://2602440/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`