# Pit  #1 43rd Ave

- **MSHA mine ID:** 0202867
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Maricopa, AZ
- **Operator:** Arizona Materials
- **Controller:** Summit Materials LLC
- **Public source rows linked:** 1,194
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Summit Materials LLC (M02046) → Arizona Materials (L01838) → Pit  #1 43rd Ave (0202867)**

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

## Controller and operator valid-time history

- **Grant H  Goodman → Rockland Materials:** 1999-12-01 through 2004-02-18; derived from co-tenure at mine 0202867; source `msha-controller-operator-history`.
- **DBJ Enterprises LLC  et al → Arizona Materials LLC:** 2004-02-19 through 2023-06-18; derived from co-tenure at mine 0202867; source `msha-controller-operator-history`.
- **Arms Length Investors LLC  et al → Arizona Materials LLC:** 2004-02-19 through 2023-06-18; derived from co-tenure at mine 0202867; source `msha-controller-operator-history`.
- **Harold  Elam → Arizona Materials:** 2023-06-19 through 2011-03-31; derived from co-tenure at mine 0202867; source `msha-controller-operator-history`.
- **Summit Materials LLC → Arizona Materials:** 2023-06-19 through current/open; derived from co-tenure at mine 0202867; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 12
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 4 since 2021:** Accidents and injuries 7 historical accident/injury rows; 1 coded fatalities and 127 lost days across the published record.
2. **COMPLIANCE — 31 since 2021:** Violations and penalties 314 violation rows across the full record; 77 carry an S&S flag and $159,152 appears in current assessed amounts.
3. **HEALTH — 20 samples:** Occupational health samples 20 personal. 1 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 6K employee hours and 12 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 164 linked rows:** Contests, conferences and decisions 26 contested-violation rows, 85 civil-penalty docket/decision rows, and 53 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 18 since 2021:** Inspections 85 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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **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 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **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 56.11001 — Safe access.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101

## Source coverage

- **Accident, Injuries, and Illnesses:** 7 rows; 2000-07-21 through 2026-04-13; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1999-12-07 through 1999-12-07; source ID `msha-addresses`
- **Assessed Violations:** 311 rows; 2000-02-10 through 2026-08-31; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 85 rows; 2000-09-21 through 2014-08-22; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 53 rows; 2000-02-25 through 2007-05-14; source ID `msha-conferences`
- **Contested Violations:** 26 rows; 2009-12-02 through 2013-07-17; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 178 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 41 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1999-12-01 through 2023-06-19; source ID `msha-controller-operator-history`
- **Inspections:** 85 rows; 2000-02-10 through 2026-08-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 14 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 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:** 20 rows; 2001-05-09 through 2024-09-18; source ID `msha-personal-health-samples`
- **Violations:** 314 rows; 2000-02-10 through 2026-08-31; 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/pit-1-43rd-ave-0202867`
- JSON: `/api/v1/mines/pit-1-43rd-ave-0202867`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0202867/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0202867/relationships`
- MCP resource: `mine://0202867/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`