# Oracle Ridge Mine

- **MSHA mine ID:** 0200840
- **Status:** Abandoned
- **Type / commodity:** Surface / Copper Ore NEC
- **Location:** Pima, AZ
- **Operator:** Wedgetail Operations LLC
- **Controller:** Wedgetail Holdings LLC
- **Public source rows linked:** 690
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Wedgetail Holdings LLC (0152821) → Wedgetail Operations LLC (0168273) → Oracle Ridge Mine (0200840)**

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

## Controller and operator valid-time history

- **Santa Catalina Corp & Continental Materials Corp → Oracle Ridge Mining Partners:** 1950-01-01 through 2012-06-21; derived from co-tenure at mine 0200840; source `msha-controller-operator-history`.
- **Oracle Mining Corp → Oracle Ridge Mining LLC:** 2012-06-22 through 2019-11-27; derived from co-tenure at mine 0200840; source `msha-controller-operator-history`.
- **Wedgetail Holdings LLC → Wedgetail Operations LLC:** 2019-11-28 through current/open; derived from co-tenure at mine 0200840; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 9
- 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 — 2 since 2021:** Violations and penalties 26 violation rows across the full record; 6 carry an S&S flag and $11,687 appears in current assessed amounts.
3. **HEALTH — 9 samples:** Occupational health samples 9 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 — 0 tons:** Quarterly production and employment 2K employee hours and 6 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 10 linked rows:** Contests, conferences and decisions 5 contested-violation rows, 5 civil-penalty docket/decision rows, and 0 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 — 9 since 2021:** Inspections 29 inspection events and 720 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 57.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4200
- **30 CFR 57.3360 — Ground support use.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3360
- **30 CFR 57.3401 — Examination of ground conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3401
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 57.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11012
- **30 CFR 57.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3200
- **30 CFR 56.16012 — Storage of incompatible substances.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16012
- **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 57.11051 — Escape routes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11051
- **30 CFR 48.23 — Training plans; time of submission; where filed; information required; time for approval; method for disapproval; commencement of training; approval of instructors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.23
- **30 CFR 48.26 — Experienced miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.26

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2013-09-27 through 2013-09-27; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-12-20 through 2024-12-20; source ID `msha-addresses`
- **Assessed Violations:** 26 rows; 2012-10-16 through 2023-04-05; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2015-10-07 through 2015-10-07; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 5 rows; 2015-02-03 through 2015-02-11; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 420 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 75 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 2019-11-28; source ID `msha-controller-operator-history`
- **Inspections:** 29 rows; 2012-10-15 through 2024-12-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 67 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 22 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:** 9 rows; 2012-10-17 through 2013-11-14; source ID `msha-personal-health-samples`
- **Violations:** 26 rows; 2012-10-16 through 2023-04-05; 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/oracle-ridge-mine-0200840`
- JSON: `/api/v1/mines/oracle-ridge-mine-0200840`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0200840/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0200840/relationships`
- MCP resource: `mine://0200840/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`