# Portable 3

- **MSHA mine ID:** 3503298
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Yamhill, OR
- **Operator:** Chavarria Construction Inc.
- **Controller:** Matthew  Chavarria
- **Public source rows linked:** 379
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Matthew  Chavarria (M14156) → Chavarria Construction Inc. (L18410) → Portable 3 (3503298)**

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

## Controller and operator valid-time history

- **Wendell  Lux et al → Three Way Portable Crushing:** 1987-11-01 through 2011-09-05; derived from co-tenure at mine 3503298; source `msha-controller-operator-history`.
- **Dave  Hanson et al → Three Way Portable Crushing:** 1987-11-01 through 2011-09-05; derived from co-tenure at mine 3503298; source `msha-controller-operator-history`.
- **Carl W  Greenlund → Three Way Portable Crushing II, Inc.:** 2011-09-06 through 2013-05-06; derived from co-tenure at mine 3503298; source `msha-controller-operator-history`.
- **Matthew  Chavarria → Chavarria Construction Inc.:** 2013-05-07 through current/open; derived from co-tenure at mine 3503298; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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 — 10 since 2021:** Violations and penalties 57 violation rows across the full record; 11 carry an S&S flag and $13,386 appears in current assessed amounts.
3. **HEALTH — 13 samples:** Occupational health samples 13 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 436 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 32 linked rows:** Contests, conferences and decisions 16 contested-violation rows, 16 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 — 5 since 2021:** Inspections 38 inspection events and 515 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 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 56.1000 — Notification of commencement of operations and closing of mines.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **30 CFR 56.12023 — Guarding electrical connections and resistor grids.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12023
- **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 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4601
- **30 CFR 47.41 — Requirement for container labels.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **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

## Source coverage

- **Addresses of Record:** 1 rows; 2024-11-11 through 2024-11-11; source ID `msha-addresses`
- **Assessed Violations:** 55 rows; 2001-06-20 through 2025-10-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 16 rows; 2010-04-28 through 2012-07-13; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 16 rows; 2008-01-15 through 2008-10-16; source ID `msha-contested-violations`
- **Controller and Operator History:** 4 rows; 1987-11-01 through 2013-05-07; source ID `msha-controller-operator-history`
- **Inspections:** 38 rows; 2001-06-19 through 2025-10-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 151 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 27 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:** 13 rows; 2005-02-17 through 2025-10-29; source ID `msha-personal-health-samples`
- **Violations:** 57 rows; 2001-06-20 through 2025-10-29; 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/portable-3-3503298`
- JSON: `/api/v1/mines/portable-3-3503298`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3503298/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3503298/relationships`
- MCP resource: `mine://3503298/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`