# Tuscarora Breaker

- **MSHA mine ID:** 3606428
- **Status:** Active
- **Type / commodity:** Facility / Coal (Anthracite)
- **Location:** Schuylkill, PA
- **Operator:** Kuperavage Ent Inc. / Tuscarora Coal
- **Controller:** David B  Kuperavage
- **Public source rows linked:** 1,193
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**David B  Kuperavage (0085797) → Kuperavage Ent Inc. / Tuscarora Coal (P13797) → Tuscarora Breaker (3606428)**

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

## Controller and operator valid-time history

- **Glen-Gery Corp → Tuscarora Coal Corp:** 1977-06-01 through 1982-10-29; derived from co-tenure at mine 3606428; source `msha-controller-operator-history`.
- **Bernard J  Kuperavage Jr et al → Kuperavage Enterprises Inc.:** 1982-10-30 through 2009-05-25; derived from co-tenure at mine 3606428; source `msha-controller-operator-history`.
- **David B  Kuperavage → Kuperavage Enterprises Inc.:** 2009-05-26 through 2011-12-31; derived from co-tenure at mine 3606428; source `msha-controller-operator-history`.
- **US Anthracite Corp → South Tamaqua Coal Pockets, Inc.:** 2012-01-01 through 2016-10-18; derived from co-tenure at mine 3606428; source `msha-controller-operator-history`.
- **David B  Kuperavage → Kuperavage Ent Inc. / Tuscarora Coal:** 2016-10-19 through current/open; derived from co-tenure at mine 3606428; source `msha-controller-operator-history`.
- **Bernard J  Kuperavage Jr et al → Kuperavage Ent Inc. / Tuscarora Coal:** 2016-10-19 through 2009-05-25; derived from co-tenure at mine 3606428; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 14
- Interval anomalies: 1
- 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 — 0 since 2021:** Accidents and injuries 8 historical accident/injury rows; 0 coded fatalities and 239 lost days across the published record.
2. **COMPLIANCE — 19 since 2021:** Violations and penalties 121 violation rows across the full record; 38 carry an S&S flag and $13,034 appears in current assessed amounts.
3. **HEALTH — 486 samples:** Occupational health samples 322 coal dust; 20 coal quartz; 144 noise. 0 personal-sample rows have a published C/E ratio above 1; 21 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 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 19 linked rows:** Contests, conferences and decisions 4 contested-violation rows, 10 civil-penalty docket/decision rows, and 5 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 — 16 since 2021:** Inspections 96 inspection events and 3K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 0 short tons
- **Labor hours:** 6,001
- **Average employees:** 3
- **Coal supply region:** Appalachia Northern
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **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 77.1713 — 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 77.200 — Surface installations; general.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.200
- **30 CFR 77.1109 — Quantity and location of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1109
- **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 77.1606 — Loading and haulage equipment; inspection and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **30 CFR 77.1102 — Warning signs; smoking and open flame.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1102
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 77.400 — Mechanical equipment guards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400

## Source coverage

- **Accident, Injuries, and Illnesses:** 8 rows; 2000-01-06 through 2015-03-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2018-11-12 through 2018-11-12; source ID `msha-addresses`
- **Assessed Violations:** 120 rows; 2000-01-24 through 2026-05-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 10 rows; 2003-09-15 through 2011-05-10; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 322 rows; 2000-01-04 through 2026-05-26; source ID `msha-coal-dust-samples`
- **Conferences:** 5 rows; 2001-02-02 through 2004-04-15; source ID `msha-conferences`
- **Contested Violations:** 4 rows; 2009-10-26 through 2009-12-14; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 42 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 4 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1977-06-01 through 2016-10-19; source ID `msha-controller-operator-history`
- **Inspections:** 96 rows; 2000-01-21 through 2026-05-21; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 240 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 49 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 144 rows; 2000-02-01 through 2025-10-28; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 20 rows; 2001-04-17 through 2017-11-14; source ID `msha-quartz-samples`
- **Violations:** 121 rows; 2000-01-24 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/tuscarora-breaker-3606428`
- JSON: `/api/v1/mines/tuscarora-breaker-3606428`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3606428/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3606428/relationships`
- MCP resource: `mine://3606428/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`