# Nipton

- **MSHA mine ID:** 2602546
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Clark, NV
- **Operator:** Rock Pros USA LLC
- **Controller:** The Shepherd Family Living Trust; The Lin Irrevocable Trust
- **Public source rows linked:** 311
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**The Shepherd Family Living Trust; The Lin Irrevocable Trust (0152201) → Rock Pros USA LLC (0167653) → Nipton (2602546)**

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

## Controller and operator valid-time history

- **Erla  Serritella → Excavating and Lowboy Services LLC:** 2004-09-20 through 2005-07-26; derived from co-tenure at mine 2602546; source `msha-controller-operator-history`.
- **Paul E  D'Alessio → Southwest Granite Wholesalers Inc:** 2005-07-27 through 2014-12-16; derived from co-tenure at mine 2602546; source `msha-controller-operator-history`.
- **Paul E  D'Alessio → Kalamazoo Materials Inc:** 2014-12-17 through 2023-01-02; derived from co-tenure at mine 2602546; source `msha-controller-operator-history`.
- **The Shepherd Family Living Trust et al → Kalamazoo Materials Inc:** 2023-01-03 through 2025-06-15; derived from co-tenure at mine 2602546; source `msha-controller-operator-history`.
- **The Lin Irrevocable Trust et al → Kalamazoo Materials Inc:** 2023-01-03 through 2025-06-15; derived from co-tenure at mine 2602546; source `msha-controller-operator-history`.
- **The Lin Irrevocable Trust et al → Rock Pros USA LLC:** 2025-06-16 through current/open; derived from co-tenure at mine 2602546; source `msha-controller-operator-history`.
- **The Shepherd Family Living Trust et al → Rock Pros USA LLC:** 2025-06-16 through current/open; derived from co-tenure at mine 2602546; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 16
- 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 — 0 since 2021:** Violations and penalties 83 violation rows across the full record; 23 carry an S&S flag and $39,073 appears in current assessed amounts.
3. **HEALTH — 7 samples:** Occupational health samples 7 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 8 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 4 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 — 0 since 2021:** Inspections 28 inspection events and 440 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 56.14112 — 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 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.14101 — Brakes.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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 56.11012 — Protection for openings around travelways.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012

## Source coverage

- **Addresses of Record:** 1 rows; 2015-06-26 through 2015-06-26; source ID `msha-addresses`
- **Assessed Violations:** 82 rows; 2005-10-17 through 2014-12-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2011-03-29 through 2012-02-08; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 4 rows; 2006-11-22 through 2006-11-22; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2008-10-15 through 2010-01-21; source ID `msha-contested-violations`
- **Controller and Operator History:** 7 rows; 2004-09-20 through 2025-06-16; source ID `msha-controller-operator-history`
- **Inspections:** 28 rows; 2004-12-14 through 2015-05-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 78 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 16 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:** 7 rows; 2004-12-15 through 2015-05-15; source ID `msha-personal-health-samples`
- **Violations:** 83 rows; 2004-12-14 through 2014-12-29; 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/nipton-2602546`
- JSON: `/api/v1/mines/nipton-2602546`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602546/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602546/relationships`
- MCP resource: `mine://2602546/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`