# T.J.S. No. 4

- **MSHA mine ID:** 3608694
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Armstrong, PA
- **Operator:** T.J.S. Mining, Inc.
- **Controller:** Thomas J  Smith
- **Public source rows linked:** 841
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Thomas J  Smith (C13674) → T.J.S. Mining, Inc. (P21491) → T.J.S. No. 4 (3608694)**

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

## Controller and operator valid-time history

- **Thomas J  Smith → T.J.S. Mining, Inc.:** 1997-08-01 through current/open; derived from co-tenure at mine 3608694; 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 32 historical accident/injury rows; 0 coded fatalities and 947 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 91 violation rows across the full record; 35 carry an S&S flag and $7,654 appears in current assessed amounts.
3. **HEALTH — 466 samples:** Occupational health samples 368 coal dust; 53 coal quartz; 45 noise. 0 personal-sample rows have a published C/E ratio above 1; 9 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 112 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 75.503 — Permissible electric face equipment; maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503
- **30 CFR 75.1100-2 — Quantity and location of firefighting equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-2
- **30 CFR 75.321 — Air quality.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.321
- **30 CFR 75.1202 — Temporary notations, revisions, and supplements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-M/section-75.1202
- **30 CFR 75.388 — Boreholes in advance of mining.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.388
- **30 CFR 75.1403-5 — Criteria—Belt conveyors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1403-5
- **30 CFR 75.202 — Protection from falls of roof, face and ribs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202
- **30 CFR 75.520 — Electric equipment; switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.520
- **30 CFR 75.1100-3 — Condition and examination of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-3

## Source coverage

- **Accident, Injuries, and Illnesses:** 32 rows; 2000-01-25 through 2003-10-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2004-08-11 through 2004-08-11; source ID `msha-addresses`
- **Assessed Violations:** 89 rows; 2000-01-04 through 2004-01-27; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 368 rows; 2000-01-07 through 2004-02-04; source ID `msha-coal-dust-samples`
- **Controller and Operator History:** 1 rows; 1997-08-01 through 1997-08-01; source ID `msha-controller-operator-history`
- **Inspections:** 112 rows; 2000-01-03 through 2004-08-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 38 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 10 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 45 rows; 2000-03-23 through 2003-12-04; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 53 rows; 2000-02-03 through 2004-02-04; source ID `msha-quartz-samples`
- **Violations:** 91 rows; 2000-01-04 through 2004-01-27; 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/t-j-s-no-4-3608694`
- JSON: `/api/v1/mines/t-j-s-no-4-3608694`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3608694/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3608694/relationships`
- MCP resource: `mine://3608694/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`