# C-JD-6

- **MSHA mine ID:** 0502912
- **Status:** Abandoned
- **Type / commodity:** Underground / Uranium Ore
- **Location:** Montrose, CO
- **Operator:** Highbury Resources Inc.
- **Controller:** Anfield Energy Inc
- **Public source rows linked:** 105
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Anfield Energy Inc (0194380) → Highbury Resources Inc. (0204073) → C-JD-6 (0502912)**

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

## Controller and operator valid-time history

- **Colorado Kenworth Inc → Kelmine Corp:** 1950-01-01 through 1984-08-07; derived from co-tenure at mine 0502912; source `msha-controller-operator-history`.
- **Commonwealth Edison Company → Cotter Corp:** 1984-08-08 through 2000-02-17; derived from co-tenure at mine 0502912; source `msha-controller-operator-history`.
- **General Atomics Uranium Resources → Cotter Corp:** 2000-02-18 through 2025-06-24; derived from co-tenure at mine 0502912; source `msha-controller-operator-history`.
- **Anfield Energy Inc → Highbury Resources Inc.:** 2025-06-25 through current/open; derived from co-tenure at mine 0502912; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 12
- 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 — 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 31 violation rows across the full record; 2 carry an S&S flag and $6,331 appears in current assessed amounts.
3. **HEALTH — 5 samples:** Occupational health samples 5 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 17 linked rows:** Contests, conferences and decisions 8 contested-violation rows, 8 civil-penalty docket/decision rows, and 1 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 13 inspection events and 254 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 57.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12028
- **30 CFR 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **30 CFR 57.5067 — Engines.** (8 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-D/section-57.5067
- **30 CFR 57.11058 — Check-in, check-out system.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11058
- **30 CFR 57.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4201

## Source coverage

- **Addresses of Record:** 1 rows; 2011-10-18 through 2011-10-18; source ID `msha-addresses`
- **Assessed Violations:** 23 rows; 2004-12-14 through 2011-02-24; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2009-05-19 through 2009-05-19; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2005-01-12 through 2005-01-12; source ID `msha-conferences`
- **Contested Violations:** 8 rows; 2005-06-29 through 2005-07-07; source ID `msha-contested-violations`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2025-06-25; source ID `msha-controller-operator-history`
- **Inspections:** 13 rows; 2004-12-14 through 2011-08-09; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 10 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:** 5 rows; 2005-03-30 through 2005-09-28; source ID `msha-personal-health-samples`
- **Violations:** 31 rows; 2004-12-14 through 2011-02-24; 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/c-jd-6-0502912`
- JSON: `/api/v1/mines/c-jd-6-0502912`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0502912/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0502912/relationships`
- MCP resource: `mine://0502912/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`