# Tangerine Road Pit

- **MSHA mine ID:** 0200649
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Pima, AZ
- **Operator:** Granite Construction Company
- **Controller:** Granite Construction Inc
- **Public source rows linked:** 700
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Granite Construction Inc (M00079) → Granite Construction Company (L00039) → Tangerine Road Pit (0200649)**

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

## Controller and operator valid-time history

- **Robert  Bayles → Desert Materials Company:** 1950-01-01 through 1979-08-16; derived from co-tenure at mine 0200649; source `msha-controller-operator-history`.
- **Ellis Transportation → Massey Sand & Rock Company:** 1979-08-17 through 1986-12-26; derived from co-tenure at mine 0200649; source `msha-controller-operator-history`.
- **Tarmac Plc → Tarmac California Inc:** 1986-12-27 through 1992-06-21; derived from co-tenure at mine 0200649; source `msha-controller-operator-history`.
- **Granite Construction Inc → Granite Construction Company:** 1992-06-22 through current/open; derived from co-tenure at mine 0200649; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 12
- 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 6 historical accident/injury rows; 0 coded fatalities and 16 lost days across the published record.
2. **COMPLIANCE — 5 since 2021:** Violations and penalties 99 violation rows across the full record; 25 carry an S&S flag and $11,745 appears in current assessed amounts.
3. **HEALTH — 34 samples:** Occupational health samples 34 personal. 4 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 4K employee hours and 13 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 16 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 16 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 20 since 2021:** Inspections 72 inspection events and 999 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 56.14107 — 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 56.20003 — Housekeeping.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.5001 — Exposure limits for airborne contaminants.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001
- **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 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 56.12028 — 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 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205

## Source coverage

- **Accident, Injuries, and Illnesses:** 6 rows; 2000-09-06 through 2019-07-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2014-05-09 through 2014-05-09; source ID `msha-addresses`
- **Assessed Violations:** 99 rows; 2000-02-02 through 2024-04-17; source ID `msha-assessed-violations`
- **Conferences:** 16 rows; 2001-08-10 through 2022-09-30; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 84 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 18 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1992-06-22; source ID `msha-controller-operator-history`
- **Inspections:** 72 rows; 2000-02-02 through 2026-08-31; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 212 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 34 rows; 2001-07-11 through 2025-07-30; source ID `msha-personal-health-samples`
- **Violations:** 99 rows; 2000-02-02 through 2024-04-17; 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/tangerine-road-pit-0200649`
- JSON: `/api/v1/mines/tangerine-road-pit-0200649`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0200649/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0200649/relationships`
- MCP resource: `mine://0200649/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`