# CSI Rossa Mine

- **MSHA mine ID:** 4703731
- **Status:** Abandoned
- **Type / commodity:** Surface / Sand, Industrial NEC
- **Location:** Trempealeau, WI
- **Operator:** CSI Sands (Wisconsin) Ltd.
- **Controller:** 1442246 AB Ltd
- **Public source rows linked:** 163
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**1442246 AB Ltd (0115781) → CSI Sands (Wisconsin) Ltd. (0136033) → CSI Rossa Mine (4703731)**

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

## Controller and operator valid-time history

- **1442246 AB Ltd → CSI Sands (Wisconsin) Ltd.:** 2014-11-24 through current/open; derived from co-tenure at mine 4703731; 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 10 violation rows across the full record; 0 carry an S&S flag and $1,044 appears in current assessed amounts.
3. **HEALTH — 3 samples:** Occupational health samples 3 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 — 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 — 1 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 — 2 since 2021:** Inspections 11 inspection events and 83 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 56.1000 — Notification of commencement of operations and closing of mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **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 56.4201 — Inspection.** (6 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132

## Source coverage

- **Addresses of Record:** 1 rows; 2022-05-20 through 2022-05-20; source ID `msha-addresses`
- **Assessed Violations:** 10 rows; 2015-05-05 through 2020-04-03; source ID `msha-assessed-violations`
- **Contractor Employment and Production — Quarterly:** 63 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 17 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 2014-11-24 through 2014-11-24; source ID `msha-controller-operator-history`
- **Inspections:** 11 rows; 2015-05-04 through 2022-07-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 39 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 7 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:** 3 rows; 2019-06-05 through 2019-08-02; source ID `msha-personal-health-samples`
- **Violations:** 10 rows; 2015-05-05 through 2020-04-03; 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/csi-rossa-mine-4703731`
- JSON: `/api/v1/mines/csi-rossa-mine-4703731`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4703731/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4703731/relationships`
- MCP resource: `mine://4703731/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`