# O'Brien Mine

- **MSHA mine ID:** 0801273
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Suwannee, FL
- **Operator:** Denali  Mining Inc
- **Controller:** Lisa Michelle  Sands; Wayne  Beaver
- **Public source rows linked:** 392
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Lisa Michelle  Sands; Wayne  Beaver (0186661) → Denali  Mining Inc (0149234) → O'Brien Mine (0801273)**

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

## Controller and operator valid-time history

- **Paul  Dickert  et al → Denali Investments Inc:** 1999-04-01 through 2000-09-30; derived from co-tenure at mine 0801273; source `msha-controller-operator-history`.
- **Wayne M  Beaver → Denali  Investments Inc:** 2000-10-01 through 2017-01-31; derived from co-tenure at mine 0801273; source `msha-controller-operator-history`.
- **Wayne M  Beaver → Denali  Mining Inc:** 2017-02-01 through 2024-07-31; derived from co-tenure at mine 0801273; source `msha-controller-operator-history`.
- **Wayne  Beaver et al → Denali  Mining Inc:** 2024-08-01 through current/open; derived from co-tenure at mine 0801273; source `msha-controller-operator-history`.
- **Lisa Michelle  Sands et al → Denali  Mining Inc:** 2024-08-01 through current/open; derived from co-tenure at mine 0801273; source `msha-controller-operator-history`.

- History rows: 5
- 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 1 historical accident/injury rows; 0 coded fatalities and 3 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 44 violation rows across the full record; 14 carry an S&S flag and $6,382 appears in current assessed amounts.
3. **HEALTH — 20 samples:** Occupational health samples 20 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 6K employee hours and 12 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 — 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 — 8 since 2021:** Inspections 72 inspection events and 708 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 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.9313 — Roadway maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9313
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.4102 — Spillage and leakage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4102
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 46.12 — Responsibility for independent contractor training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.12

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2005-02-08 through 2005-02-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-04-20 through 2022-04-20; source ID `msha-addresses`
- **Assessed Violations:** 43 rows; 2000-05-02 through 2020-10-07; source ID `msha-assessed-violations`
- **Contractor Employment and Production — Quarterly:** 102 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 29 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1999-04-01 through 2017-02-01; source ID `msha-controller-operator-history`
- **Inspections:** 72 rows; 2000-05-02 through 2026-03-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 21 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 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:** 20 rows; 2001-11-01 through 2026-03-27; source ID `msha-personal-health-samples`
- **Violations:** 44 rows; 2000-05-02 through 2020-10-07; 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/o-brien-mine-0801273`
- JSON: `/api/v1/mines/o-brien-mine-0801273`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0801273/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0801273/relationships`
- MCP resource: `mine://0801273/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`