# Portable Crusher# 1

- **MSHA mine ID:** 0505028
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Montrose, CO
- **Operator:** Rocky Mountain Aggregate & Construction LLC
- **Controller:** Erin  Luttrell; C Zane  Luttrell
- **Public source rows linked:** 219
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Erin  Luttrell; C Zane  Luttrell (0113581) → Rocky Mountain Aggregate & Construction LLC (0133473) → Portable Crusher# 1 (0505028)**

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

## Controller and operator valid-time history

- **C Zane  Luttrell et al → Rocky Mountain Aggregate & Construction LLC:** 2014-05-05 through current/open; derived from co-tenure at mine 0505028; source `msha-controller-operator-history`.
- **Erin  Luttrell et al → Rocky Mountain Aggregate & Construction LLC:** 2014-05-05 through current/open; derived from co-tenure at mine 0505028; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 4
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 23 since 2021:** Violations and penalties 37 violation rows across the full record; 9 carry an S&S flag and $9,511 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 5K employee hours and 8 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 12 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 6 civil-penalty docket/decision rows, and 0 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 — 7 since 2021:** Inspections 17 inspection events and 294 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 56.14101 — Brakes.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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 56.14107 — 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 56.12004 — 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 56.12032 — 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 56.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104
- **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 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **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

## Source coverage

- **Addresses of Record:** 1 rows; 2023-06-13 through 2023-06-13; source ID `msha-addresses`
- **Assessed Violations:** 36 rows; 2017-05-23 through 2025-10-21; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2018-01-10 through 2021-06-04; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 6 rows; 2017-05-23 through 2020-08-25; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 2014-05-05 through 2014-05-05; source ID `msha-controller-operator-history`
- **Inspections:** 17 rows; 2016-08-03 through 2025-10-21; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 80 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 19 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; 2016-08-03 through 2025-10-21; source ID `msha-personal-health-samples`
- **Violations:** 37 rows; 2017-05-23 through 2025-10-21; 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/portable-crusher-1-0505028`
- JSON: `/api/v1/mines/portable-crusher-1-0505028`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0505028/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0505028/relationships`
- MCP resource: `mine://0505028/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`