# Robert L Derck Mine

- **MSHA mine ID:** 3607018
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Anthracite)
- **Location:** Northumberland, PA
- **Operator:** A L Coal Company
- **Controller:** Derck Robert L Sr & Jr
- **Public source rows linked:** 79
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Derck Robert L Sr & Jr (C15788) → A L Coal Company (P24084) → Robert L Derck Mine (3607018)**

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

## Controller and operator valid-time history

- **Grego Stanley F Et Al → T A G Coal Company:** 1980-08-01 through 1984-01-18; derived from co-tenure at mine 3607018; source `msha-controller-operator-history`.
- **Troxell C Wayne Jr → T A G Coal Company:** 1984-01-19 through 1990-04-18; derived from co-tenure at mine 3607018; source `msha-controller-operator-history`.
- **Sheldon  Derck → Sheldon Derck:** 1990-04-19 through 1998-07-12; derived from co-tenure at mine 3607018; source `msha-controller-operator-history`.
- **Derck Robert L Sr & Jr → A L Coal Company:** 1998-07-13 through current/open; derived from co-tenure at mine 3607018; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 12
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 20 violation rows across the full record; 2 carry an S&S flag and $2,517 appears in current assessed amounts.
3. **HEALTH — 7 samples:** Occupational health samples 4 coal dust; 3 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 — 0 tons:** Quarterly production and employment 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 3 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 3 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 32 inspection events and 241 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 75.1711 — Sealing of mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1711
- **30 CFR 75.1204 — Mine closure; filing of map with Secretary.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-M/section-75.1204
- **30 CFR 75.203 — Mining methods.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.203
- **30 CFR 75.512-2 — Frequency of examinations.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512-2
- **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 77.516 — Electric wiring and equipment; installation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.516
- **30 CFR 49.2 — Availability of mine rescue teams.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-49/subpart-A/section-49.2
- **30 CFR 75.372 — Mine ventilation map.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.372
- **30 CFR 75.1203 — Availability of mine map.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-M/section-75.1203

## Source coverage

- **Addresses of Record:** 1 rows; 2001-09-26 through 2001-09-26; source ID `msha-addresses`
- **Assessed Violations:** 7 rows; 2000-05-08 through 2001-03-30; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2002-03-22 through 2002-04-10; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 4 rows; 2000-06-19 through 2000-06-19; source ID `msha-coal-dust-samples`
- **Controller and Operator History:** 4 rows; 1980-08-01 through 1998-07-13; source ID `msha-controller-operator-history`
- **Inspections:** 32 rows; 2000-01-03 through 2001-09-26; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 3 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 1 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 3 rows; 2000-06-19 through 2000-06-19; source ID `msha-noise-samples`
- **Violations:** 20 rows; 2000-01-03 through 2001-03-30; 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/robert-l-derck-mine-3607018`
- JSON: `/api/v1/mines/robert-l-derck-mine-3607018`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3607018/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3607018/relationships`
- MCP resource: `mine://3607018/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`