# Avery Pit

- **MSHA mine ID:** 4500671
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Klickitat, WA
- **Operator:** Pacific Northwest Aggregates Inc
- **Controller:** R B Pamplin Corp
- **Public source rows linked:** 650
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**R B Pamplin Corp (M37998) → Pacific Northwest Aggregates Inc (L18224) → Avery Pit (4500671)**

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

## Controller and operator valid-time history

- **Craig  Warnock → Pacific Northwest Aggregates Inc:** 1950-01-01 through 1990-11-30; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Fred W  Ashley → Dalles Concrete Inc:** 1990-12-01 through 1992-10-26; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Craig  Warnock → Pacific Northwest Aggregates Inc:** 1992-10-27 through 1994-10-03; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Fred W  Ashley → Dalles Concrete Inc:** 1994-10-04 through 1996-11-30; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Randy A Dyche et al → Pacific Northwest Aggregates Inc:** 1996-12-01 through 1999-02-23; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Ross  Triplett → Tripco Inc:** 1999-02-24 through 2000-06-30; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Ty  Ross et al → Pacific Northwest Aggregates Inc:** 2000-07-01 through 2001-03-18; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Ross Island Sand & Gravel Company → Pacific Northwest Aggregates Inc:** 2001-03-19 through 2001-12-31; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **R B Pamplin Corp → Pacific Northwest Aggregates Inc:** 2002-01-01 through current/open; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.
- **Case E  Stedham → Tripco Inc:** 2021-06-30 through 2000-06-30; derived from co-tenure at mine 4500671; source `msha-controller-operator-history`.

- History rows: 10
- Typed edges: 26
- 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 — 0 since 2021:** Accidents and injuries 10 historical accident/injury rows; 0 coded fatalities and 197 lost days across the published record.
2. **COMPLIANCE — 13 since 2021:** Violations and penalties 145 violation rows across the full record; 35 carry an S&S flag and $19,369 appears in current assessed amounts.
3. **HEALTH — 14 samples:** Occupational health samples 14 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 46 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 18 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 16 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 — 8 since 2021:** Inspections 62 inspection events and 1K 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 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 56.14100 — 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 56.12004 — Electrical conductors.** (3 retained recent rows) — 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.14108 — Overhead drive belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14108
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005

## Source coverage

- **Accident, Injuries, and Illnesses:** 10 rows; 2001-01-05 through 2016-09-13; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-08-07 through 2025-08-07; source ID `msha-addresses`
- **Assessed Violations:** 143 rows; 2001-06-27 through 2025-07-01; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2013-09-11 through 2013-09-11; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 16 rows; 2001-07-12 through 2001-07-12; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2012-12-07 through 2012-12-07; source ID `msha-contested-violations`
- **Controller and Operator History:** 10 rows; 1950-01-01 through 2001-03-19; source ID `msha-controller-operator-history`
- **Inspections:** 62 rows; 2001-06-27 through 2025-06-30; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 196 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 50 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:** 14 rows; 2003-06-25 through 2021-11-02; source ID `msha-personal-health-samples`
- **Violations:** 145 rows; 2001-06-27 through 2025-07-01; 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/avery-pit-4500671`
- JSON: `/api/v1/mines/avery-pit-4500671`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4500671/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4500671/relationships`
- MCP resource: `mine://4500671/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`