# Bluff Materials

- **MSHA mine ID:** 3401657
- **Status:** Abandoned
- **Type / commodity:** Surface / Sand, Common
- **Location:** Choctaw, OK
- **Operator:** Bluff Materials
- **Controller:** Ray Gene  Jeffries
- **Public source rows linked:** 165
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Ray Gene  Jeffries (M09535) → Bluff Materials (L12432) → Bluff Materials (3401657)**

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

## Controller and operator valid-time history

- **Ray Gene  Jeffries  et al → Bluff Materials:** 1988-08-01 through current/open; derived from co-tenure at mine 3401657; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 35 violation rows across the full record; 16 carry an S&S flag and $3,496 appears in current assessed amounts.
3. **HEALTH — 3 samples:** Occupational health samples 3 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 920 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 11 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 7 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 163 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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.12002 — Controls and switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12001 — Circuit overload protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12001
- **30 CFR 62.120 — Action level.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.120
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112

## Source coverage

- **Addresses of Record:** 1 rows; 2005-08-15 through 2005-08-15; source ID `msha-addresses`
- **Assessed Violations:** 35 rows; 2001-01-09 through 2005-08-08; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2004-08-20 through 2004-08-20; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2004-08-13 through 2004-08-13; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2002-08-06 through 2003-01-22; source ID `msha-contested-violations`
- **Controller and Operator History:** 1 rows; 1988-08-01 through 1988-08-01; source ID `msha-controller-operator-history`
- **Inspections:** 20 rows; 2000-08-10 through 2005-08-08; 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:** 3 rows; 2002-08-06 through 2003-01-22; source ID `msha-personal-health-samples`
- **Violations:** 35 rows; 2001-01-09 through 2005-08-08; 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/bluff-materials-3401657`
- JSON: `/api/v1/mines/bluff-materials-3401657`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3401657/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3401657/relationships`
- MCP resource: `mine://3401657/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`