# Welsch Mine

- **MSHA mine ID:** 3610308
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Lawrence, PA
- **Operator:** Amerikohl Aggregates
- **Controller:** John M  Stilley
- **Public source rows linked:** 884
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**John M  Stilley (C07677) → Amerikohl Aggregates (0121048) → Welsch Mine (3610308)**

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

## Controller and operator valid-time history

- **John M  Stilley → Amerikohl Aggregates:** 2019-11-21 through current/open; derived from co-tenure at mine 3610308; 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 — 1 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 16 lost days across the published record.
2. **COMPLIANCE — 25 since 2021:** Violations and penalties 26 violation rows across the full record; 2 carry an S&S flag and $4,265 appears in current assessed amounts.
3. **HEALTH — 5 samples:** Occupational health samples 5 personal. 1 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 7K employee hours and 14 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 5 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 1 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 — 12 since 2021:** Inspections 14 inspection events and 171 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 56.3200 — Correction of hazardous conditions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3200
- **30 CFR 56.18002 — Examination of working places.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **30 CFR 56.6306 — Loading, blasting, and security.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-E/section-56.6306
- **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 56.3131 — Pit or quarry wall perimeter.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3131
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2026-04-23 through 2026-04-23; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-03-09 through 2026-03-09; source ID `msha-addresses`
- **Assessed Violations:** 25 rows; 2020-06-15 through 2026-06-25; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; unknown through unknown; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2026-10-07 through 2026-10-07; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2026-06-25 through 2026-06-25; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 613 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 126 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 2019-11-21 through 2019-11-21; source ID `msha-controller-operator-history`
- **Inspections:** 14 rows; 2020-04-01 through 2026-07-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 52 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 14 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 5 rows; 2021-01-21 through 2025-03-07; source ID `msha-personal-health-samples`
- **Violations:** 26 rows; 2020-06-15 through 2026-06-25; 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/welsch-mine-3610308`
- JSON: `/api/v1/mines/welsch-mine-3610308`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3610308/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3610308/relationships`
- MCP resource: `mine://3610308/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`