# PWP #3

- **MSHA mine ID:** 1300645
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Polk, IA
- **Operator:** Hallett Materials
- **Controller:** CRH PLC
- **Public source rows linked:** 775
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → Hallett Materials (0085824) → PWP #3 (1300645)**

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

## Controller and operator valid-time history

- **G A  Finley → G A Finley Inc:** 1950-01-01 through 1989-01-31; derived from co-tenure at mine 1300645; source `msha-controller-operator-history`.
- **Mid America Materials Company → Hallett Materials:** 1989-02-01 through 1999-03-31; derived from co-tenure at mine 1300645; source `msha-controller-operator-history`.
- **Rasmussen Group Inc → Hallett Materials Inc:** 1999-04-01 through 2001-08-10; derived from co-tenure at mine 1300645; source `msha-controller-operator-history`.
- **CRH PLC → Hallett Materials Inc:** 2001-08-11 through 2008-01-02; derived from co-tenure at mine 1300645; source `msha-controller-operator-history`.
- **CRH PLC → Hallett Materials:** 2008-01-03 through current/open; derived from co-tenure at mine 1300645; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- 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 — 1 since 2021:** Accidents and injuries 6 historical accident/injury rows; 0 coded fatalities and 148 lost days across the published record.
2. **COMPLIANCE — 8 since 2021:** Violations and penalties 44 violation rows across the full record; 13 carry an S&S flag and $12,720 appears in current assessed amounts.
3. **HEALTH — 19 samples:** Occupational health samples 19 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 219 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 11 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 3 civil-penalty docket/decision rows, and 6 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 44 inspection events and 452 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 50.30-1 — General instructions for completing MSHA Form 7000-2.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30-1
- **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 56.14209 — Safety procedures for towing.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14209
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 50.20-1 — General instructions for completing MSHA Form 7000-1.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-1
- **30 CFR 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **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 56.12030 — 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 56.14116 — Hand-held power tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14116
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004

## Source coverage

- **Accident, Injuries, and Illnesses:** 6 rows; 2000-04-20 through 2022-04-27; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-11-21 through 2025-11-21; source ID `msha-addresses`
- **Assessed Violations:** 43 rows; 2000-03-01 through 2025-09-30; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2002-07-11 through 2016-10-19; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 6 rows; 2000-03-13 through 2007-12-04; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2007-10-24 through 2016-05-02; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 295 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 54 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2008-01-03; source ID `msha-controller-operator-history`
- **Inspections:** 44 rows; 2000-03-01 through 2025-09-23; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 203 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 49 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:** 19 rows; 2003-06-18 through 2025-09-23; source ID `msha-personal-health-samples`
- **Violations:** 44 rows; 2000-03-01 through 2025-09-30; 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/pwp-3-1300645`
- JSON: `/api/v1/mines/pwp-3-1300645`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1300645/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1300645/relationships`
- MCP resource: `mine://1300645/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`