# OAKFIELD

- **MSHA mine ID:** 4702898
- **Status:** Active
- **Type / commodity:** Surface / Dimension Stone NEC
- **Location:** Fond Du Lac, WI
- **Operator:** Buechel Stone Corp
- **Controller:** Shaun  Buechel; Dominique  Von Wald; Michael  Buechel
- **Public source rows linked:** 484
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Shaun  Buechel; Dominique  Von Wald; Michael  Buechel (0189781) → Buechel Stone Corp (L03563) → OAKFIELD (4702898)**

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

## Controller and operator valid-time history

- **Timothy A  Buechel → Buechel Stone Corp:** 1990-03-01 through 2016-12-31; derived from co-tenure at mine 4702898; source `msha-controller-operator-history`.
- **Scott  Buechel et al → Buechel Stone Corp:** 2017-01-01 through 2025-01-07; derived from co-tenure at mine 4702898; source `msha-controller-operator-history`.
- **Michael  Buechel et al → Buechel Stone Corp:** 2017-01-01 through 2025-01-07; derived from co-tenure at mine 4702898; source `msha-controller-operator-history`.
- **Michael  Buechel → Buechel Stone Corp:** 2025-01-08 through current/open; derived from co-tenure at mine 4702898; source `msha-controller-operator-history`.
- **Shaun  Buechel → Buechel Stone Corp:** 2025-01-08 through current/open; derived from co-tenure at mine 4702898; source `msha-controller-operator-history`.
- **Dominique  Von Wald → Buechel Stone Corp:** 2025-01-08 through current/open; derived from co-tenure at mine 4702898; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 10
- 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 — 1 since 2021:** Accidents and injuries 40 historical accident/injury rows; 0 coded fatalities and 628 lost days across the published record.
2. **COMPLIANCE — 7 since 2021:** Violations and penalties 50 violation rows across the full record; 12 carry an S&S flag and $6,726 appears in current assessed amounts.
3. **HEALTH — 7 samples:** Occupational health samples 7 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 10 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 — 2 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 — 12 since 2021:** Inspections 63 inspection events and 764 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 56.14132 — Horns and backup alarms.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 46.7 — New task training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **30 CFR 56.4130 — Electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4130
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025
- **30 CFR 56.9301 — Dump site restraints.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9301

## Source coverage

- **Accident, Injuries, and Illnesses:** 40 rows; 2000-08-28 through 2026-08-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2011-12-12 through 2011-12-12; source ID `msha-addresses`
- **Assessed Violations:** 50 rows; 2001-04-25 through 2026-05-28; source ID `msha-assessed-violations`
- **Conferences:** 2 rows; 2007-11-14 through 2018-07-06; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 106 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 25 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1990-03-01 through 1990-03-01; source ID `msha-controller-operator-history`
- **Inspections:** 63 rows; 2001-04-25 through 2026-05-28; 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:** 27 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:** 7 rows; 2019-02-21 through 2025-09-03; source ID `msha-personal-health-samples`
- **Violations:** 50 rows; 2001-04-25 through 2026-05-28; 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/oakfield-4702898`
- JSON: `/api/v1/mines/oakfield-4702898`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4702898/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4702898/relationships`
- MCP resource: `mine://4702898/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`