# Mosby Quarry

- **MSHA mine ID:** 2302447
- **Status:** Active
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Clay, MO
- **Operator:** Ideker Mining LLC
- **Controller:** Roger  Ideker
- **Public source rows linked:** 1,181
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Roger  Ideker (M34468) → Ideker Mining LLC (0200233) → Mosby Quarry (2302447)**

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

## Controller and operator valid-time history

- **Roger  Ideker → Ideker Inc:** 2013-01-31 through 2024-12-31; derived from co-tenure at mine 2302447; source `msha-controller-operator-history`.
- **Roger  Ideker → Ideker Mining LLC:** 2025-01-01 through current/open; derived from co-tenure at mine 2302447; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 — 3 since 2021:** Accidents and injuries 3 historical accident/injury rows; 0 coded fatalities and 39 lost days across the published record.
2. **COMPLIANCE — 104 since 2021:** Violations and penalties 129 violation rows across the full record; 21 carry an S&S flag and $36,701 appears in current assessed amounts.
3. **HEALTH — 63 samples:** Occupational health samples 59 personal; 4 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 11K employee hours and 21 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 50 since 2021:** Inspections 65 inspection events and 1K 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 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 57.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14112
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **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 57.4203 — Extinguisher recharging or replacement.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4203
- **30 CFR 57.11053 — Escape and evacuation plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11053
- **30 CFR 57.8520 — Ventilation plan.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-G/section-57.8520
- **30 CFR 57.14132 — Horns and backup alarms for surface equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14132

## Source coverage

- **Accident, Injuries, and Illnesses:** 3 rows; 2022-12-27 through 2026-08-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2015-10-26 through 2015-10-26; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 4 rows; 2025-01-15 through 2026-08-18; source ID `msha-area-samples`
- **Assessed Violations:** 119 rows; 2014-07-08 through 2026-08-20; source ID `msha-assessed-violations`
- **Conferences:** 2 rows; 2026-06-10 through 2026-09-30; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 475 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 109 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 2013-01-31 through 2025-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 65 rows; 2014-07-08 through 2026-09-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 167 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 45 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:** 59 rows; 2015-09-02 through 2026-08-18; source ID `msha-personal-health-samples`
- **Violations:** 129 rows; 2014-07-08 through 2026-08-20; 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/mosby-quarry-2302447`
- JSON: `/api/v1/mines/mosby-quarry-2302447`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2302447/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2302447/relationships`
- MCP resource: `mine://2302447/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`