# Chantilly Crushed Stone Incorporated

- **MSHA mine ID:** 4400024
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Loudoun, VA
- **Operator:** Chantilly Crushed Stone Inc
- **Controller:** John  Gudelsky
- **Public source rows linked:** 3,661
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**John  Gudelsky (M02210) → Chantilly Crushed Stone Inc (L02607) → Chantilly Crushed Stone Incorporated (4400024)**

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

## Controller and operator valid-time history

- **John  Gudelsky  et al → Chantilly Crushed Stone Inc:** 1950-01-01 through current/open; derived from co-tenure at mine 4400024; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 10 since 2021:** Accidents and injuries 26 historical accident/injury rows; 1 coded fatalities and 201 lost days across the published record.
2. **COMPLIANCE — 7 since 2021:** Violations and penalties 172 violation rows across the full record; 40 carry an S&S flag and $29,462 appears in current assessed amounts.
3. **HEALTH — 94 samples:** Occupational health samples 90 personal; 4 area. 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 36K employee hours and 55 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 151 linked rows:** Contests, conferences and decisions 64 contested-violation rows, 80 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 14 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 — 16 since 2021:** Inspections 84 inspection events and 3K 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 46.12 — Responsibility for independent contractor training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.12
- **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 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.4430 — Storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4430
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205

## Source coverage

- **Accident, Injuries, and Illnesses:** 26 rows; 2000-08-07 through 2026-01-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-03-14 through 2019-03-14; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 4 rows; 2015-06-16 through 2015-06-16; source ID `msha-area-samples`
- **Assessed Violations:** 168 rows; 2000-08-15 through 2024-08-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 80 rows; 2000-04-19 through 2023-11-20; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2014-07-14 through 2017-06-12; source ID `msha-conferences`
- **Contested Violations:** 64 rows; 2006-06-07 through 2023-04-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,425 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 421 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 84 rows; 2000-08-15 through 2026-07-20; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 36 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 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:** 90 rows; 2002-03-21 through 2026-04-28; source ID `msha-personal-health-samples`
- **Violations:** 172 rows; 2000-08-15 through 2024-08-02; 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/chantilly-crushed-stone-incorporated-4400024`
- JSON: `/api/v1/mines/chantilly-crushed-stone-incorporated-4400024`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4400024/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4400024/relationships`
- MCP resource: `mine://4400024/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`