# Three Rivers Project

- **MSHA mine ID:** 5002061
- **Status:** Abandoned
- **Type / commodity:** Surface / Gold Ore
- **Location:** Matanuska-Susitna, AK
- **Operator:** Breaking Ground Resources
- **Controller:** Amanda M  Espinola; Nickolas D  Espinola
- **Public source rows linked:** 22
- **Source coverage:** 9 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Amanda M  Espinola; Nickolas D  Espinola (0134361) → Breaking Ground Resources (0151733) → Three Rivers Project (5002061)**

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

## Controller and operator valid-time history

- **Nickolas D  Espinola et al → Breaking Ground Resources:** 2017-05-04 through current/open; derived from co-tenure at mine 5002061; source `msha-controller-operator-history`.
- **Amanda M  Espinola et al → Breaking Ground Resources:** 2017-05-04 through current/open; derived from co-tenure at mine 5002061; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 4
- 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 1 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 6 violation rows across the full record; 4 carry an S&S flag and $11,484 appears in current assessed amounts.
3. **HEALTH — 0 samples:** Occupational health samples No published samples. 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 8K employee hours and 9 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 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 1 inspection events and 30 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 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **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 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 48.31 — Hazard training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.31
- **30 CFR 48.28 — Annual refresher training of miners; minimum courses of instruction; hours of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.28
- **30 CFR 48.25 — Training of new miners; minimum courses of instruction; hours of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.25

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2018-08-10 through 2018-08-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-06-12 through 2019-06-12; source ID `msha-addresses`
- **Assessed Violations:** 6 rows; 2018-08-29 through 2018-08-29; source ID `msha-assessed-violations`
- **Controller and Operator History:** 2 rows; 2017-05-04 through 2017-05-04; source ID `msha-controller-operator-history`
- **Inspections:** 1 rows; 2018-08-29 through 2018-08-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 3 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 1 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 6 rows; 2018-08-29 through 2018-08-29; 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/three-rivers-project-5002061`
- JSON: `/api/v1/mines/three-rivers-project-5002061`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/5002061/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/5002061/relationships`
- MCP resource: `mine://5002061/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`