# PLANT #10  SAND CLASSIFIER

- **MSHA mine ID:** 4703157
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Dane, WI
- **Operator:** WINGRA STONE COMPANY INC.
- **Controller:** Robert M  Shea
- **Public source rows linked:** 264
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Robert M  Shea (M00821) → WINGRA STONE COMPANY INC. (L00961) → PLANT #10  SAND CLASSIFIER (4703157)**

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

## Controller and operator valid-time history

- **Robert M  Shea → WINGRA STONE COMPANY INC.:** 1998-08-01 through current/open; derived from co-tenure at mine 4703157; 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 2 historical accident/injury rows; 0 coded fatalities and 145 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 43 violation rows across the full record; 18 carry an S&S flag and $6,987 appears in current assessed amounts.
3. **HEALTH — 2 samples:** Occupational health samples 2 personal. 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 — 22 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 11 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 22 inspection events and 274 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 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.11001 — Safe access.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12006
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 46.10 — Compensation for training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.10
- **30 CFR 56.15005 — Safety belts and lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2012-10-29 through 2013-09-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-10-22 through 2019-10-22; source ID `msha-addresses`
- **Assessed Violations:** 42 rows; 2009-09-23 through 2016-11-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2010-11-09 through 2012-02-08; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 11 rows; 2009-09-23 through 2011-07-20; source ID `msha-contested-violations`
- **Controller and Operator History:** 1 rows; 1998-08-01 through 1998-08-01; source ID `msha-controller-operator-history`
- **Inspections:** 22 rows; 2002-08-13 through 2019-10-22; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 106 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 22 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:** 2 rows; 2010-06-15 through 2012-08-28; source ID `msha-personal-health-samples`
- **Violations:** 43 rows; 2009-09-23 through 2016-11-09; 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/plant-10-sand-classifier-4703157`
- JSON: `/api/v1/mines/plant-10-sand-classifier-4703157`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4703157/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4703157/relationships`
- MCP resource: `mine://4703157/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`