# Shafter Mine

- **MSHA mine ID:** 4102905
- **Status:** NonProducing
- **Type / commodity:** Underground / Silver Ore
- **Location:** Presidio, TX
- **Operator:** JBM Project, LLC
- **Controller:** JBM Texas Inc
- **Public source rows linked:** 1,925
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**JBM Texas Inc (0202160) → JBM Project, LLC (0210953) → Shafter Mine (4102905)**

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

## Controller and operator valid-time history

- **Consolidated Gold Fields Limited → Gold Fields Operating Company:** 1979-01-01 through 2010-12-31; derived from co-tenure at mine 4102905; source `msha-controller-operator-history`.
- **Aurcana Corporation → Rio Grande Mining Company:** 2011-01-01 through 2026-07-08; derived from co-tenure at mine 4102905; source `msha-controller-operator-history`.
- **JBM Texas Inc → JBM Project, LLC:** 2026-07-09 through current/open; derived from co-tenure at mine 4102905; 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 37 historical accident/injury rows; 0 coded fatalities and 721 lost days across the published record.
2. **COMPLIANCE — 12 since 2021:** Violations and penalties 195 violation rows across the full record; 70 carry an S&S flag and $124,227 appears in current assessed amounts.
3. **HEALTH — 10 samples:** Occupational health samples 8 personal; 2 area. 1 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 65K employee hours and 133 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 9 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 — 1 since 2021:** Inspections 47 inspection events and 864 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 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
- **30 CFR 48.7 — Training of miners assigned to a task in which they have had no previous experience; minimum courses of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-A/section-48.7
- **30 CFR 57.16006 — Protection of gas cylinder valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-O/section-57.16006
- **30 CFR 57.14105 — Procedures during repairs or maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14105
- **30 CFR 57.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14207
- **30 CFR 57.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12019
- **30 CFR 57.12068 — Locking transformer enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12068
- **30 CFR 57.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4402
- **30 CFR 57.15006 — Protective equipment and clothing for hazards and irritants.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15006
- **30 CFR 57.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4101
- **30 CFR 57.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12018

## Source coverage

- **Accident, Injuries, and Illnesses:** 37 rows; 2011-06-10 through 2013-10-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-07-01 through 2026-07-01; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2013-01-15 through 2013-01-15; source ID `msha-area-samples`
- **Assessed Violations:** 180 rows; 2011-04-21 through 2013-11-06; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2012-10-23 through 2012-11-09; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 2 rows; 2012-02-07 through 2012-02-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,157 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 232 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1979-01-01 through 2026-07-09; source ID `msha-controller-operator-history`
- **Inspections:** 47 rows; 2011-04-21 through 2026-09-16; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 46 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 12 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:** 8 rows; 2012-02-08 through 2013-05-15; source ID `msha-personal-health-samples`
- **Violations:** 195 rows; 2011-04-21 through 2026-09-18; 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/shafter-mine-4102905`
- JSON: `/api/v1/mines/shafter-mine-4102905`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4102905/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4102905/relationships`
- MCP resource: `mine://4102905/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`