# TIMM MINE

- **MSHA mine ID:** 0402459
- **Status:** Abandoned
- **Type / commodity:** Underground / Gold Ore
- **Location:** El Dorado, CA
- **Operator:** Lamplight, Inc
- **Controller:** Cole E  McGowan
- **Public source rows linked:** 99
- **Source coverage:** 9 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Cole E  McGowan (0091933) → Lamplight, Inc (0108645) → TIMM MINE (0402459)**

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

## Controller and operator valid-time history

- **Du Bois Francis E Iii → Alhambra Mines Inc:** 1950-01-01 through 1989-03-16; derived from co-tenure at mine 0402459; source `msha-controller-operator-history`.
- **Stevenson Charles → Traverse Creek Mining Company Ltd:** 1989-03-17 through 1990-09-15; derived from co-tenure at mine 0402459; source `msha-controller-operator-history`.
- **Anderson Ray → Anderson Mining & Metallurgical Inc:** 1990-09-16 through 1991-09-15; derived from co-tenure at mine 0402459; source `msha-controller-operator-history`.
- **Thompson Paul → Thompson Yellow Jacket Mining Company Inc:** 1991-09-16 through 2010-02-15; derived from co-tenure at mine 0402459; source `msha-controller-operator-history`.
- **Cole E  McGowan → Lamplight, Inc:** 2010-02-16 through current/open; derived from co-tenure at mine 0402459; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 15
- 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 0 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; 0 carry an S&S flag and $600 appears in current assessed amounts.
3. **HEALTH — 2 samples:** Occupational health samples 2 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 12 employee hours and 1 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 20 inspection events and 273 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 57.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4601
- **30 CFR 57.11054 — Communication with refuge chambers.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11054
- **30 CFR 57.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107
- **30 CFR 57.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12004
- **30 CFR 57.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20011

## Source coverage

- **Addresses of Record:** 1 rows; 2017-01-25 through 2017-01-25; source ID `msha-addresses`
- **Assessed Violations:** 6 rows; 2010-11-04 through 2012-09-12; source ID `msha-assessed-violations`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2010-02-16; source ID `msha-controller-operator-history`
- **Inspections:** 20 rows; 2010-11-03 through 2017-01-24; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 50 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 8 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:** 2 rows; 2010-11-04 through 2010-11-04; source ID `msha-personal-health-samples`
- **Violations:** 6 rows; 2010-11-04 through 2012-09-12; 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/timm-mine-0402459`
- JSON: `/api/v1/mines/timm-mine-0402459`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0402459/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0402459/relationships`
- MCP resource: `mine://0402459/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`