# Emerald Mine No 1

- **MSHA mine ID:** 3605466
- **Status:** NonProducing
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Greene, PA
- **Operator:** Iron Emerald LLC
- **Controller:** Iron Senergy Holding LLC
- **Public source rows linked:** 26,897
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Iron Senergy Holding LLC (0159461) → Iron Emerald LLC (0146693) → Emerald Mine No 1 (3605466)**

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

## Controller and operator valid-time history

- **Lykes Resources Inc → Emerald Mines Corp:** 1975-02-12 through 1979-08-15; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.
- **LTV Corporation → Emerald Mines Corp:** 1979-08-16 through 1980-06-30; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.
- **Cyprus Amax Minerals Company → Cyprus Emerald Resources Corp:** 1980-07-01 through 1999-06-29; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.
- **Rag Aktiengesellschaft → Emerald Coal Resources LP:** 1999-06-30 through 2004-08-02; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.
- **Foundation Coal Corporation → Emerald Coal Resources LP:** 2004-08-03 through 2009-07-30; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Emerald Coal Resources LP:** 2009-07-31 through 2016-07-25; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.
- **Alpha Metallurgical Resources Inc → Iron Emerald LLC:** 2016-07-26 through 2020-12-09; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.
- **Iron Senergy Holding LLC → Iron Emerald LLC:** 2020-12-10 through current/open; derived from co-tenure at mine 3605466; source `msha-controller-operator-history`.

- History rows: 8
- Typed edges: 21
- 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 — 3 since 2021:** Accidents and injuries 1,155 historical accident/injury rows; 0 coded fatalities and 43,772 lost days across the published record.
2. **COMPLIANCE — 21 since 2021:** Violations and penalties 3,555 violation rows across the full record; 1,085 carry an S&S flag and $2,902,757 appears in current assessed amounts.
3. **HEALTH — 8K samples:** Occupational health samples 6,904 coal dust; 283 coal quartz; 428 noise. 0 personal-sample rows have a published C/E ratio above 1; 123 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 — 1.5M tons:** Quarterly production and employment 305K employee hours and 522 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1,452 linked rows:** Contests, conferences and decisions 588 contested-violation rows, 631 civil-penalty docket/decision rows, and 233 conference records linked by issuance number.
6. **CONTRACTORS — 48 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 — 32 since 2021:** Inspections 2,070 inspection events and 81K 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 77.216 — Water, sediment, or slurry impoundments and impounding structures; general.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216
- **30 CFR 77.216-3 — Water, sediment, or slurry impoundments and impounding structures; inspection requirements; correction of hazards; program requirements.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216-3
- **30 CFR 77.1103 — Flammable liquids; storage.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1103
- **30 CFR 77.400 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400
- **30 CFR 77.1109 — Quantity and location of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1109
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1,155 rows; 2000-01-08 through 2026-03-04; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2015-10-06 through 2015-10-06; source ID `msha-addresses`
- **Assessed Violations:** 3,437 rows; 2000-01-05 through 2026-09-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 631 rows; 2000-06-16 through 2020-02-28; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 6,904 rows; 2000-01-04 through 2023-01-09; source ID `msha-coal-dust-samples`
- **Conferences:** 233 rows; 2000-02-22 through 2019-08-14; source ID `msha-conferences`
- **Contested Violations:** 588 rows; 2004-11-10 through 2019-05-06; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 6,213 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1,276 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 8 rows; 1975-02-12 through 2016-07-26; source ID `msha-controller-operator-history`
- **Inspections:** 2,070 rows; 2000-01-03 through 2026-10-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 48 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 66 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 428 rows; 2000-04-12 through 2016-05-17; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 283 rows; 2000-03-07 through 2015-06-10; source ID `msha-quartz-samples`
- **Violations:** 3,555 rows; 2000-01-05 through 2026-09-02; 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/emerald-mine-no-1-3605466`
- JSON: `/api/v1/mines/emerald-mine-no-1-3605466`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3605466/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3605466/relationships`
- MCP resource: `mine://3605466/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`