# Chilton Quarry

- **MSHA mine ID:** 4700398
- **Status:** Active
- **Type / commodity:** Surface / Dimension Limestone
- **Location:** Calumet, WI
- **Operator:** Buechel Stone Corp
- **Controller:** Shaun  Buechel; Dominique  Von Wald; Michael  Buechel
- **Public source rows linked:** 1,789
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Shaun  Buechel; Dominique  Von Wald; Michael  Buechel (0189781) → Buechel Stone Corp (L03563) → Chilton Quarry (4700398)**

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

## Controller and operator valid-time history

- **Francis  Buechel → Buechels Stone Quarry:** 1950-01-01 through 1979-10-15; derived from co-tenure at mine 4700398; source `msha-controller-operator-history`.
- **Timothy A  Buechel → Buechel Stone Corp:** 1979-10-16 through 2016-12-31; derived from co-tenure at mine 4700398; 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 4700398; 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 4700398; source `msha-controller-operator-history`.
- **Dominique  Von Wald → Buechel Stone Corp:** 2025-01-08 through current/open; derived from co-tenure at mine 4700398; source `msha-controller-operator-history`.
- **Michael  Buechel → Buechel Stone Corp:** 2025-01-08 through current/open; derived from co-tenure at mine 4700398; source `msha-controller-operator-history`.
- **Shaun  Buechel → Buechel Stone Corp:** 2025-01-08 through current/open; derived from co-tenure at mine 4700398; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 13
- 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 — 22 since 2021:** Accidents and injuries 422 historical accident/injury rows; 0 coded fatalities and 1,963 lost days across the published record.
2. **COMPLIANCE — 59 since 2021:** Violations and penalties 318 violation rows across the full record; 65 carry an S&S flag and $103,728 appears in current assessed amounts.
3. **HEALTH — 44 samples:** Occupational health samples 44 personal. 6 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 54K employee hours and 105 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 54 linked rows:** Contests, conferences and decisions 26 contested-violation rows, 26 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 — 15 since 2021:** Inspections 106 inspection events and 2K 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 56.12004 — 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 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.23003 — Requirements for written safety program.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-T/section-56.23003
- **30 CFR 56.14112 — Construction and maintenance of guards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.14109 — Unguarded conveyors with adjacent travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14109
- **30 CFR 56.14116 — Hand-held power tools.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14116
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 422 rows; 2000-01-05 through 2026-09-14; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1974-08-14 through 1974-08-14; source ID `msha-addresses`
- **Assessed Violations:** 316 rows; 2000-04-12 through 2026-04-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 26 rows; 2011-06-29 through 2014-02-28; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2006-03-14 through 2006-03-14; source ID `msha-conferences`
- **Contested Violations:** 26 rows; 2008-01-09 through 2010-03-10; source ID `msha-contested-violations`
- **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:** 7 rows; 1950-01-01 through 1979-10-16; source ID `msha-controller-operator-history`
- **Inspections:** 106 rows; 2000-04-12 through 2026-07-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 310 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 79 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:** 44 rows; 2010-03-10 through 2025-09-16; source ID `msha-personal-health-samples`
- **Violations:** 318 rows; 2000-04-12 through 2026-04-15; 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/chilton-quarry-4700398`
- JSON: `/api/v1/mines/chilton-quarry-4700398`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4700398/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4700398/relationships`
- MCP resource: `mine://4700398/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`