# Pumpkin Hollow East Underground

- **MSHA mine ID:** 2602711
- **Status:** NonProducing
- **Type / commodity:** Underground / Copper Ore NEC
- **Location:** Lyon, NV
- **Operator:** Southwest Critical Materials LLC
- **Controller:** Kinterra Capitol Corporation
- **Public source rows linked:** 7,057
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Kinterra Capitol Corporation (0188441) → Southwest Critical Materials LLC (0198994) → Pumpkin Hollow East Underground (2602711)**

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

## Controller and operator valid-time history

- **Nevada Copper Corporation → Nevada Copper Inc.:** 2012-03-15 through 2024-10-08; derived from co-tenure at mine 2602711; source `msha-controller-operator-history`.
- **Kinterra Capitol Corporation → Southwest Critical Materials LLC:** 2024-10-09 through current/open; derived from co-tenure at mine 2602711; source `msha-controller-operator-history`.

- History rows: 2
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 58 since 2021:** Accidents and injuries 94 historical accident/injury rows; 0 coded fatalities and 642 lost days across the published record.
2. **COMPLIANCE — 204 since 2021:** Violations and penalties 448 violation rows across the full record; 57 carry an S&S flag and $238,735 appears in current assessed amounts.
3. **HEALTH — 52 samples:** Occupational health samples 50 personal; 2 area. 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 126 linked rows:** Contests, conferences and decisions 36 contested-violation rows, 36 civil-penalty docket/decision rows, and 54 conference records linked by issuance number.
6. **CONTRACTORS — 27 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 — 75 since 2021:** Inspections 153 inspection events and 5K 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 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20011
- **30 CFR 57.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12004
- **30 CFR 49.6 — Equipment and maintenance requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-49/subpart-A/section-49.6
- **30 CFR 57.4460 — Storage of flammable liquids underground.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4460
- **30 CFR 57.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12030
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 57.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12032
- **30 CFR 57.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107
- **30 CFR 57.3360 — Ground support use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3360
- **30 CFR 57.11036 — Ladderway trap doors and guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11036
- **30 CFR 57.11027 — Scaffolds and working platforms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11027

## Source coverage

- **Accident, Injuries, and Illnesses:** 94 rows; 2012-05-31 through 2026-08-23; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-07-18 through 2022-07-18; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2026-04-02 through 2026-08-19; source ID `msha-area-samples`
- **Assessed Violations:** 437 rows; 2012-06-26 through 2026-08-20; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 36 rows; 2016-06-01 through 2023-11-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 54 rows; 2012-08-22 through 2026-04-30; source ID `msha-conferences`
- **Contested Violations:** 36 rows; 2015-06-23 through 2023-05-09; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 4,633 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1,058 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 2012-03-15 through 2024-10-09; source ID `msha-controller-operator-history`
- **Inspections:** 153 rows; 2012-06-26 through 2026-08-05; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 52 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:** 50 rows; 2013-01-15 through 2026-08-12; source ID `msha-personal-health-samples`
- **Violations:** 448 rows; 2012-06-26 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/pumpkin-hollow-east-underground-2602711`
- JSON: `/api/v1/mines/pumpkin-hollow-east-underground-2602711`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602711/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602711/relationships`
- MCP resource: `mine://2602711/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`