# Nelms Mine - Cadiz Portal

- **MSHA mine ID:** 3303349
- **Status:** Abandoned
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Harrison, OH
- **Operator:** Hopedale Mining LLC
- **Controller:** Rhino Resource Partners LP
- **Public source rows linked:** 5,791
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-18T09:31:49.615Z

## Current entity hierarchy

**Rhino Resource Partners LP (0098293) → Hopedale Mining LLC (0052243) → Nelms Mine - Cadiz Portal (3303349)**

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

## Controller and operator valid-time history

- **Panhandle Eastern Corp → Youghiogheny & Ohio Coal Company:** 1975-08-11 through 1990-03-11; derived from co-tenure at mine 3303349; source `msha-controller-operator-history`.
- **Donn A  Chickering → Harrison Mining Corp:** 1990-03-12 through 2001-10-29; derived from co-tenure at mine 3303349; source `msha-controller-operator-history`.
- **American Electric Power Company Inc → AEP Ohio Coal, L.L.C.:** 2001-10-30 through 2004-04-15; derived from co-tenure at mine 3303349; source `msha-controller-operator-history`.
- **Wexford Capital LLC → Hopedale Mining LLC:** 2004-04-16 through 2010-10-04; derived from co-tenure at mine 3303349; source `msha-controller-operator-history`.
- **Rhino Resource Partners LP → Hopedale Mining LLC:** 2010-10-05 through current/open; derived from co-tenure at mine 3303349; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- 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: 2026-10-18T09:31:49.615908+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 162 historical accident/injury rows; 1 coded fatalities and 2,179 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 1,439 violation rows across the full record; 811 carry an S&S flag and $288,948 appears in current assessed amounts.
3. **HEALTH — 2K samples:** Occupational health samples 1,499 coal dust; 257 coal quartz; 125 noise. 0 personal-sample rows have a published C/E ratio above 1; 90 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 — 10 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 1 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 398 inspection events and 15K 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 75.1702-1 — Smoking programs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1702-1
- **30 CFR 75.1107-16 — Inspection of fire suppression devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1107-16
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 75.701 — Grounding metallic frames, casings, and other enclosures of electric equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-H/section-75.701
- **30 CFR 75.1400 — Hoisting equipment; general.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1400
- **30 CFR 75.1400-1 — Hoists; brakes, capability.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1400-1
- **30 CFR 75.512 — Electric equipment; examination, testing and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512
- **30 CFR 75.1505 — Escapeway maps.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1505
- **30 CFR 77.1104 — Accumulations of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104
- **30 CFR 75.400 — Accumulation of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.604 — Permanent splicing of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.604

## Source coverage

- **Accident, Injuries, and Illnesses:** 162 rows; 2000-01-08 through 2007-07-06; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2018-08-31 through 2018-08-31; source ID `msha-addresses`
- **Assessed Violations:** 1,415 rows; 2000-01-04 through 2007-06-19; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2003-03-26 through 2003-03-26; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 1,499 rows; 2000-01-04 through 2007-03-09; source ID `msha-coal-dust-samples`
- **Conferences:** 9 rows; 2001-10-11 through 2004-04-20; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 278 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 59 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1975-08-11 through 2004-04-16; source ID `msha-controller-operator-history`
- **Inspections:** 398 rows; 2000-01-03 through 2017-10-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 118 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 24 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 125 rows; 2000-03-27 through 2007-01-24; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 257 rows; 2000-01-04 through 2007-01-10; source ID `msha-quartz-samples`
- **Violations:** 1,439 rows; 2000-01-04 through 2007-06-19; 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/nelms-mine-cadiz-portal-3303349`
- JSON: `/api/v1/mines/nelms-mine-cadiz-portal-3303349`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3303349/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3303349/relationships`
- MCP resource: `mine://3303349/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`