# Base Rock Burfordville

- **MSHA mine ID:** 2302446
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Cape Girardeau, MO
- **Operator:** Base Rock Minerals
- **Controller:** BMC Enterprises Inc
- **Public source rows linked:** 303
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**BMC Enterprises Inc (0115581) → Base Rock Minerals (0129075) → Base Rock Burfordville (2302446)**

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

## Controller and operator valid-time history

- **Leroy  Tarr et al → T & M Stone Quarry LLC:** 2013-01-16 through 2016-11-28; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Wanda  Tarr et al → T & M Stone Quarry LLC:** 2013-01-16 through 2016-11-28; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Francis P  Fischer  et al → Fischer Quarry & Hauling, LLC:** 2016-11-29 through 2026-01-04; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Robert G  Fischer  et al → Fischer Quarry & Hauling, LLC:** 2016-11-29 through 2026-01-04; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **BMC Enterprises Inc → Base Rock Minerals:** 2026-01-05 through current/open; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Kerry  Bauman et al → Base Rock Minerals:** 2026-01-05 through 2023-04-02; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Andy  Arnold et al → Base Rock Minerals:** 2026-01-05 through 2023-04-02; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Aggregate Holdings LLC et al → Base Rock Minerals:** 2026-01-05 through 2024-04-24; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Bauman Brothers LLC et al → Base Rock Minerals:** 2026-01-05 through 2024-04-24; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.
- **Vernon J  Bauman → Base Rock Minerals:** 2026-01-05 through 2017-04-13; derived from co-tenure at mine 2302446; source `msha-controller-operator-history`.

- History rows: 10
- Typed edges: 19
- Interval anomalies: 5
- 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 83 lost days across the published record.
2. **COMPLIANCE — 25 since 2021:** Violations and penalties 52 violation rows across the full record; 10 carry an S&S flag and $9,426 appears in current assessed amounts.
3. **HEALTH — 15 samples:** Occupational health samples 13 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 2K employee hours and 12 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 8 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 2 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 — 13 since 2021:** Inspections 28 inspection events and 420 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 56.12008 — 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 56.12001 — 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 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 56.5001 — Exposure limits for airborne contaminants.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001
- **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 56.11003 — Construction and maintenance of ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11003
- **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 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 56.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4601
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2014-02-13 through 2023-08-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-10-10 through 2019-10-10; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2024-08-28 through 2024-08-28; source ID `msha-area-samples`
- **Assessed Violations:** 52 rows; 2013-02-26 through 2025-07-07; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2013-11-26 through 2016-06-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2016-03-15 through 2016-03-15; source ID `msha-conferences`
- **Contested Violations:** 3 rows; 2013-05-07 through 2015-08-24; source ID `msha-contested-violations`
- **Controller and Operator History:** 10 rows; 2013-01-16 through 2026-01-05; source ID `msha-controller-operator-history`
- **Inspections:** 28 rows; 2013-02-26 through 2026-04-22; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 106 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 28 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:** 13 rows; 2013-02-28 through 2024-10-10; source ID `msha-personal-health-samples`
- **Violations:** 52 rows; 2013-02-26 through 2025-07-07; 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/base-rock-burfordville-2302446`
- JSON: `/api/v1/mines/base-rock-burfordville-2302446`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2302446/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2302446/relationships`
- MCP resource: `mine://2302446/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`