# Uschak Operation

- **MSHA mine ID:** 3609311
- **Status:** Abandoned
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Butler, PA
- **Operator:** Carlson Mining
- **Controller:** Jack  Carlson
- **Public source rows linked:** 563
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Jack  Carlson (C04515) → Carlson Mining (P05438) → Uschak Operation (3609311)**

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

## Controller and operator valid-time history

- **Jack  Carlson → Carlson Mining:** 2005-03-28 through current/open; derived from co-tenure at mine 3609311; 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 — 0 since 2021:** Accidents and injuries 5 historical accident/injury rows; 0 coded fatalities and 56 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 56 violation rows across the full record; 24 carry an S&S flag and $14,017 appears in current assessed amounts.
3. **HEALTH — 64 samples:** Occupational health samples 41 coal dust; 2 coal quartz; 21 noise. 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 98 linked rows:** Contests, conferences and decisions 38 contested-violation rows, 38 civil-penalty docket/decision rows, and 22 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 — 0 since 2021:** Inspections 13 inspection events and 502 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 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 77.1110 — Examination and maintenance of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.410 — Mobile equipment; automatic warning devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 48.28 — Annual refresher training of miners; minimum courses of instruction; hours of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.28
- **30 CFR 77.1713 — Daily inspection of surface coal mine; certified person; reports of inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1713
- **30 CFR 48.10 — Compensation for training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-A/section-48.10
- **30 CFR 77.1000 — Highwalls, pits and spoil banks; plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-K/section-77.1000
- **30 CFR 77.400 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2005-12-02 through 2010-05-06; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2010-06-14 through 2010-06-14; source ID `msha-addresses`
- **Assessed Violations:** 55 rows; 2005-09-21 through 2010-05-27; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 38 rows; 2006-03-02 through 2011-08-29; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 41 rows; 2005-09-22 through 2010-05-26; source ID `msha-coal-dust-samples`
- **Conferences:** 22 rows; 2006-01-05 through 2011-07-02; source ID `msha-conferences`
- **Contested Violations:** 38 rows; 2005-11-01 through 2010-05-27; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 228 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 35 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 2005-03-28 through 2005-03-28; source ID `msha-controller-operator-history`
- **Inspections:** 13 rows; 2005-05-04 through 2010-05-20; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 6 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 21 rows; 2005-09-22 through 2009-11-03; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 2 rows; 2009-07-08 through 2010-05-26; source ID `msha-quartz-samples`
- **Violations:** 56 rows; 2005-09-21 through 2010-05-27; 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/uschak-operation-3609311`
- JSON: `/api/v1/mines/uschak-operation-3609311`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3609311/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3609311/relationships`
- MCP resource: `mine://3609311/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`