# Velarde Mill

- **MSHA mine ID:** 2900751
- **Status:** Abandoned
- **Type / commodity:** Facility / Mica
- **Location:** Rio Arriba, NM
- **Operator:** Oglebay Norton Specialty Mineral Incorporated
- **Controller:** Oglebay Norton Company
- **Public source rows linked:** 346
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Oglebay Norton Company (M00581) → Oglebay Norton Specialty Mineral Incorporated (L17036) → Velarde Mill (2900751)**

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

## Controller and operator valid-time history

- **Mineral Industrial Commodities Of America → Mineral Industrial Commodities Of America Inc:** 1950-01-01 through 1990-07-22; derived from co-tenure at mine 2900751; source `msha-controller-operator-history`.
- **Franklin Industries Inc → Franklin Industrial Minerals:** 1990-07-23 through 1999-11-30; derived from co-tenure at mine 2900751; source `msha-controller-operator-history`.
- **Oglebay Norton Company → Oglebay Norton Specialty Mineral Incorporated:** 1999-12-01 through current/open; derived from co-tenure at mine 2900751; source `msha-controller-operator-history`.
- **Lhoist Group → Franklin Industrial Minerals:** 2006-12-01 through 1999-11-30; derived from co-tenure at mine 2900751; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- Interval anomalies: 1
- 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 16 historical accident/injury rows; 0 coded fatalities and 57 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 64 violation rows across the full record; 12 carry an S&S flag and $5,500 appears in current assessed amounts.
3. **HEALTH — 21 samples:** Occupational health samples 21 personal. 7 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 512 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 17 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 17 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 — 0 since 2021:** Inspections 32 inspection events and 616 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 56.5001 — Exposure limits for airborne contaminants.** (6 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **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 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **30 CFR 50.20-1 — General instructions for completing MSHA Form 7000-1.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-1
- **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 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004

## Source coverage

- **Accident, Injuries, and Illnesses:** 16 rows; 2000-05-28 through 2003-06-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2005-09-29 through 2005-09-29; source ID `msha-addresses`
- **Assessed Violations:** 62 rows; 2000-01-07 through 2004-07-01; source ID `msha-assessed-violations`
- **Conferences:** 17 rows; 2001-11-26 through 2003-10-07; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 61 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 14 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1999-12-01; source ID `msha-controller-operator-history`
- **Inspections:** 32 rows; 2000-01-07 through 2004-08-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 42 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 11 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:** 21 rows; 2000-08-08 through 2004-07-01; source ID `msha-personal-health-samples`
- **Violations:** 64 rows; 2000-01-07 through 2004-07-01; 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/velarde-mill-2900751`
- JSON: `/api/v1/mines/velarde-mill-2900751`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2900751/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2900751/relationships`
- MCP resource: `mine://2900751/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`