# Knife River Newman Aggregate

- **MSHA mine ID:** 0401774
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Stanislaus, CA
- **Operator:** Knifer River
- **Controller:** Knife River Corporation
- **Public source rows linked:** 466
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Knife River Corporation (0176802) → Knifer River (0109965) → Knife River Newman Aggregate (0401774)**

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

## Controller and operator valid-time history

- **Henry W  Marks et al → Frank B Marks & Son Inc:** 1950-01-01 through 2024-10-03; derived from co-tenure at mine 0401774; source `msha-controller-operator-history`.
- **Bernhard H  Marks et al → Frank B Marks & Son Inc:** 1950-01-01 through 2024-10-03; derived from co-tenure at mine 0401774; source `msha-controller-operator-history`.
- **Knife River Corporation → Knifer River:** 2024-10-04 through current/open; derived from co-tenure at mine 0401774; source `msha-controller-operator-history`.
- **MDU Resources Group Inc → Knifer River:** 2024-10-04 through 2023-05-31; derived from co-tenure at mine 0401774; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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 — 1 since 2021:** Accidents and injuries 8 historical accident/injury rows; 0 coded fatalities and 62 lost days across the published record.
2. **COMPLIANCE — 3 since 2021:** Violations and penalties 55 violation rows across the full record; 14 carry an S&S flag and $5,939 appears in current assessed amounts.
3. **HEALTH — 22 samples:** Occupational health samples 22 personal. 2 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 3K employee hours and 6 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 2 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 — 11 since 2021:** Inspections 56 inspection events and 781 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.14107 — 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 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **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
- **30 CFR 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **30 CFR 56.11004 — Portable rigid ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11004
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018

## Source coverage

- **Accident, Injuries, and Illnesses:** 8 rows; 2000-06-01 through 2025-07-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-03-06 through 2024-03-06; source ID `msha-addresses`
- **Assessed Violations:** 55 rows; 2001-05-08 through 2026-07-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2011-06-07 through 2011-06-07; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2002-12-23 through 2002-12-23; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2009-11-05 through 2009-11-05; source ID `msha-contested-violations`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2024-10-04; source ID `msha-controller-operator-history`
- **Inspections:** 56 rows; 2000-09-07 through 2026-07-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 206 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 22 rows; 2001-02-22 through 2026-07-30; source ID `msha-personal-health-samples`
- **Violations:** 55 rows; 2001-05-08 through 2026-07-29; 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/knife-river-newman-aggregate-0401774`
- JSON: `/api/v1/mines/knife-river-newman-aggregate-0401774`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0401774/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0401774/relationships`
- MCP resource: `mine://0401774/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`