# Becker Portable Plant #3

- **MSHA mine ID:** 1302223
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Woodbury, IA
- **Operator:** Knife River Midwest LLC
- **Controller:** MDU Resources Group Inc
- **Public source rows linked:** 225
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**MDU Resources Group Inc (M09717) → Knife River Midwest LLC (L00546) → Becker Portable Plant #3 (1302223)**

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

## Controller and operator valid-time history

- **Charles P  Becker → Becker Gravel Company Inc:** 1998-11-01 through 2004-09-12; derived from co-tenure at mine 1302223; source `msha-controller-operator-history`.
- **Jeff C Roverud et al → Knife River Midwest LLC:** 2004-09-13 through 2004-02-04; derived from co-tenure at mine 1302223; source `msha-controller-operator-history`.
- **Curtis G Roverud et al → Knife River Midwest LLC:** 2004-09-13 through 2004-02-04; derived from co-tenure at mine 1302223; source `msha-controller-operator-history`.
- **MDU Resources Group Inc → Knife River Midwest LLC:** 2004-09-13 through current/open; derived from co-tenure at mine 1302223; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- Interval anomalies: 2
- 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 30 violation rows across the full record; 9 carry an S&S flag and $10,303 appears in current assessed amounts.
3. **HEALTH — 4 samples:** Occupational health samples 4 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 1 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 34 linked rows:** Contests, conferences and decisions 12 contested-violation rows, 16 civil-penalty docket/decision rows, and 6 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 19 inspection events and 183 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 56.9300 — Berms or guardrails.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.14101 — Brakes.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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 56.14107 — Moving machine parts.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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

- **Addresses of Record:** 1 rows; 2010-08-03 through 2010-08-03; source ID `msha-addresses`
- **Assessed Violations:** 29 rows; 2000-08-30 through 2007-05-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 16 rows; 2001-04-23 through 2007-12-19; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 6 rows; 2001-11-26 through 2005-03-29; source ID `msha-conferences`
- **Contested Violations:** 12 rows; 2005-03-09 through 2007-05-16; source ID `msha-contested-violations`
- **Controller and Operator History:** 4 rows; 1998-11-01 through 2004-09-13; source ID `msha-controller-operator-history`
- **Inspections:** 19 rows; 2000-08-30 through 2009-08-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 83 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 20 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:** 4 rows; 2004-06-17 through 2007-05-16; source ID `msha-personal-health-samples`
- **Violations:** 30 rows; 2000-08-30 through 2007-05-16; 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/becker-portable-plant-3-1302223`
- JSON: `/api/v1/mines/becker-portable-plant-3-1302223`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1302223/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1302223/relationships`
- MCP resource: `mine://1302223/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`