# Mary-D Strip Operation

- **MSHA mine ID:** 3608681
- **Status:** Active
- **Type / commodity:** Surface / Coal (Anthracite)
- **Location:** Schuylkill, PA
- **Operator:** Premium Fine Coal, Inc.
- **Controller:** Michael S  Carsia
- **Public source rows linked:** 1,093
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Michael S  Carsia (C09896) → Premium Fine Coal, Inc. (0076345) → Mary-D Strip Operation (3608681)**

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

## Controller and operator valid-time history

- **Greg  Schenck → J C Coal Inc:** 1997-07-01 through 2006-09-05; derived from co-tenure at mine 3608681; source `msha-controller-operator-history`.
- **Michael S  Carsia → Premium Fine Coal Inc:** 2006-09-06 through 2010-03-14; derived from co-tenure at mine 3608681; source `msha-controller-operator-history`.
- **Scott B  Kimmel → Michael Coal Company, Inc.:** 2010-03-15 through 2017-02-27; derived from co-tenure at mine 3608681; source `msha-controller-operator-history`.
- **Neil  Schenck → J C Coal Inc:** 2012-04-16 through 2006-09-05; derived from co-tenure at mine 3608681; source `msha-controller-operator-history`.
- **Michael S  Carsia → Premium Fine Coal, Inc.:** 2017-02-28 through 2017-04-16; derived from co-tenure at mine 3608681; source `msha-controller-operator-history`.
- **Charlie  Sorokach et al → Char-Pac Coal Company LLC:** 2017-04-17 through 2019-09-08; derived from co-tenure at mine 3608681; source `msha-controller-operator-history`.
- **Michael S  Carsia → Premium Fine Coal, Inc.:** 2019-09-09 through current/open; derived from co-tenure at mine 3608681; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 18
- 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 2 historical accident/injury rows; 0 coded fatalities and 39 lost days across the published record.
2. **COMPLIANCE — 6 since 2021:** Violations and penalties 57 violation rows across the full record; 15 carry an S&S flag and $6,258 appears in current assessed amounts.
3. **HEALTH — 224 samples:** Occupational health samples 143 coal dust; 8 coal quartz; 73 noise. 0 personal-sample rows have a published C/E ratio above 1; 1 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 — 3 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 3 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 — 12 since 2021:** Inspections 85 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 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 77.208 — Storage of materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.208
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 71.501 — Sanitary toilet facilities; maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-F/section-71.501
- **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 71.400 — Bathing facilities; change rooms; sanitary flush toilet facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.400
- **30 CFR 71.201 — Sampling; general and technical requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-C/section-71.201
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2009-06-16 through 2011-02-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-01-06 through 2020-01-06; source ID `msha-addresses`
- **Assessed Violations:** 56 rows; 2003-02-21 through 2025-06-16; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 143 rows; 2000-01-18 through 2026-09-21; source ID `msha-coal-dust-samples`
- **Conferences:** 3 rows; 2003-03-17 through 2007-04-13; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 475 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 57 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1997-07-01 through 2019-09-09; source ID `msha-controller-operator-history`
- **Inspections:** 85 rows; 2000-03-21 through 2026-07-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 104 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 21 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 73 rows; 2000-09-20 through 2026-03-17; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 8 rows; 2009-05-12 through 2026-07-01; source ID `msha-quartz-samples`
- **Violations:** 57 rows; 2003-02-21 through 2025-06-16; 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/mary-d-strip-operation-3608681`
- JSON: `/api/v1/mines/mary-d-strip-operation-3608681`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3608681/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3608681/relationships`
- MCP resource: `mine://3608681/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`