# Eagle Pit

- **MSHA mine ID:** 1000740
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Ada, ID
- **Operator:** Idaho Materials & Construction
- **Controller:** CRH PLC
- **Public source rows linked:** 228
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → Idaho Materials & Construction (L17959) → Eagle Pit (1000740)**

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

## Controller and operator valid-time history

- **Wel-Com Financial Services & M-K Holding Corp → Monroc Inc:** 1950-01-01 through 1978-08-31; derived from co-tenure at mine 1000740; source `msha-controller-operator-history`.
- **Floyd A  Patterson → Masterpiece Corp Inc:** 1978-09-01 through 1979-09-30; derived from co-tenure at mine 1000740; source `msha-controller-operator-history`.
- **C D  Tarter  et al → R & T Construction:** 1979-10-01 through 1980-12-31; derived from co-tenure at mine 1000740; source `msha-controller-operator-history`.
- **Wel-Com Financial Services & M-K Holding Corp → Monroc Inc:** 1981-01-01 through 1994-09-11; derived from co-tenure at mine 1000740; source `msha-controller-operator-history`.
- **U S Aggregate Inc → Monroc Inc:** 1994-09-12 through 2002-02-05; derived from co-tenure at mine 1000740; source `msha-controller-operator-history`.
- **CRH PLC → Idaho Materials & Construction:** 2002-02-06 through current/open; derived from co-tenure at mine 1000740; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 17
- 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 1 historical accident/injury rows; 0 coded fatalities and 38 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 19 violation rows across the full record; 3 carry an S&S flag and $1,734 appears in current assessed amounts.
3. **HEALTH — 8 samples:** Occupational health samples 8 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 0 employee hours and 0 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 — 0 since 2021:** Inspections 33 inspection events and 348 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 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **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 56.12028 — 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 56.15005 — 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
- **30 CFR 56.11002 — Handrails and toeboards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **30 CFR 56.11027 — Scaffolds and working platforms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11027
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2000-04-04 through 2000-04-04; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-08-13 through 2020-08-13; source ID `msha-addresses`
- **Assessed Violations:** 18 rows; 2000-09-13 through 2014-03-24; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2009-07-17 through 2009-07-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2008-03-27 through 2008-04-22; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2008-03-19 through 2008-03-19; source ID `msha-contested-violations`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2002-02-06; source ID `msha-controller-operator-history`
- **Inspections:** 33 rows; 2000-01-03 through 2018-10-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 114 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 23 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:** 8 rows; 2002-01-16 through 2017-02-01; source ID `msha-personal-health-samples`
- **Violations:** 19 rows; 2000-09-13 through 2014-03-24; 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/eagle-pit-1000740`
- JSON: `/api/v1/mines/eagle-pit-1000740`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1000740/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1000740/relationships`
- MCP resource: `mine://1000740/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`