# Independence Portable

- **MSHA mine ID:** 2301301
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Warren, MO
- **Operator:** Capital Quarries Co. Inc.
- **Controller:** Michael K Farmer; Elliott (Bud) E Farmer
- **Public source rows linked:** 510
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Michael K Farmer; Elliott (Bud) E Farmer (M02148) → Capital Quarries Co. Inc. (L14846) → Independence Portable (2301301)**

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

## Controller and operator valid-time history

- **Michael  Mertens → Richard J Mertens Inc:** 1950-01-01 through 2025-04-15; derived from co-tenure at mine 2301301; source `msha-controller-operator-history`.
- **Eric S  Strope et al → Capital Quarries Co. Inc.:** 2025-04-16 through 2011-04-18; derived from co-tenure at mine 2301301; source `msha-controller-operator-history`.
- **Elliott (Bud) E Farmer  et al → Capital Quarries Co. Inc.:** 2025-04-16 through current/open; derived from co-tenure at mine 2301301; source `msha-controller-operator-history`.
- **Michael K Farmer  et al → Capital Quarries Co. Inc.:** 2025-04-16 through current/open; derived from co-tenure at mine 2301301; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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 — 1 since 2021:** Accidents and injuries 2 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 10 since 2021:** Violations and penalties 46 violation rows across the full record; 5 carry an S&S flag and $5,509 appears in current assessed amounts.
3. **HEALTH — 27 samples:** Occupational health samples 27 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 6K employee hours and 14 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 — 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 — 15 since 2021:** Inspections 68 inspection events and 686 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 46.11 — Site-specific hazard awareness training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.11
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **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 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.4203 — Extinguisher recharging or replacement.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4203
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2006-01-27 through 2026-03-25; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2011-09-20 through 2011-09-20; source ID `msha-addresses`
- **Assessed Violations:** 46 rows; 2003-04-01 through 2026-05-21; source ID `msha-assessed-violations`
- **Contractor Employment and Production — Quarterly:** 106 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 27 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2025-04-16; source ID `msha-controller-operator-history`
- **Inspections:** 68 rows; 2000-06-14 through 2026-05-21; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 144 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 38 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:** 27 rows; 2003-04-01 through 2025-10-15; source ID `msha-personal-health-samples`
- **Violations:** 46 rows; 2003-04-01 through 2026-05-21; 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/independence-portable-2301301`
- JSON: `/api/v1/mines/independence-portable-2301301`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2301301/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2301301/relationships`
- MCP resource: `mine://2301301/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`