# Portable Screener #1

- **MSHA mine ID:** 2902158
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Rio Arriba, NM
- **Operator:** Red Hill Lava Products, Inc.
- **Controller:** Conner  Bjustrom
- **Public source rows linked:** 392
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Conner  Bjustrom (0126821) → Red Hill Lava Products, Inc. (0146013) → Portable Screener #1 (2902158)**

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

## Controller and operator valid-time history

- **Hecla Mining Company → Mwca Inc:** 1996-06-01 through 2000-06-05; derived from co-tenure at mine 2902158; source `msha-controller-operator-history`.
- **Dan  Marion et al → Colorado Lava Inc:** 2000-06-06 through 2016-07-31; derived from co-tenure at mine 2902158; source `msha-controller-operator-history`.
- **Ronald D  Bjustrom et al → Colorado Lava Inc:** 2000-06-06 through 2016-07-31; derived from co-tenure at mine 2902158; source `msha-controller-operator-history`.
- **Conner  Bjustrom → Red Hill Lava Products, Inc.:** 2016-08-01 through current/open; derived from co-tenure at mine 2902158; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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 5 historical accident/injury rows; 0 coded fatalities and 34 lost days across the published record.
2. **COMPLIANCE — 13 since 2021:** Violations and penalties 90 violation rows across the full record; 20 carry an S&S flag and $13,886 appears in current assessed amounts.
3. **HEALTH — 23 samples:** Occupational health samples 23 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 — 37 linked rows:** Contests, conferences and decisions 12 contested-violation rows, 25 civil-penalty docket/decision rows, and 0 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 — 5 since 2021:** Inspections 42 inspection events and 495 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 56.1000 — Notification of commencement of operations and closing of mines.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **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 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 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.4230 — Self-propelled equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4230
- **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 56.15001 — First-aid materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15001
- **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 56.14107 — 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 56.18002 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2001-05-25 through 2005-05-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-02-13 through 2026-02-13; source ID `msha-addresses`
- **Assessed Violations:** 90 rows; 2000-08-01 through 2024-08-27; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 25 rows; 2001-07-30 through 2019-11-25; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 12 rows; 2006-06-13 through 2019-07-15; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 18 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 7 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1996-06-01 through 2016-08-01; source ID `msha-controller-operator-history`
- **Inspections:** 42 rows; 2000-08-01 through 2025-08-20; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 58 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 16 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:** 23 rows; 2004-06-16 through 2008-02-07; source ID `msha-personal-health-samples`
- **Violations:** 90 rows; 2000-08-01 through 2024-08-27; 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-screener-1-2902158`
- JSON: `/api/v1/mines/portable-screener-1-2902158`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2902158/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2902158/relationships`
- MCP resource: `mine://2902158/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`