# Hidden Valley

- **MSHA mine ID:** 5001861
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Juneau, AK
- **Operator:** Colaska Inc. dba Secon
- **Controller:** Colas S A
- **Public source rows linked:** 522
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Colas S A (M03183) → Colaska Inc. dba Secon (0070323) → Hidden Valley (5001861)**

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

## Controller and operator valid-time history

- **Colas S A → Secon:** 2007-04-10 through current/open; derived from co-tenure at mine 5001861; source `msha-controller-operator-history`.
- **Gordon  Crawley → Secon:** 2007-04-10 through 2000-08-31; derived from co-tenure at mine 5001861; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- 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 — 0 since 2021:** Accidents and injuries 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 10 violation rows across the full record; 6 carry an S&S flag and $5,983 appears in current assessed amounts.
3. **HEALTH — 0 samples:** Occupational health samples No published samples. 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 0 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 — 6 since 2021:** Inspections 9 inspection events and 72 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 46.6 — Newly hired experienced miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.6
- **30 CFR 56.6101 — Areas around explosive material storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-E/section-56.6101
- **30 CFR 56.14132 — Horns and backup alarms.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **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 56.9300 — Berms or guardrails.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.6132 — Magazine requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-E/section-56.6132

## Source coverage

- **Addresses of Record:** 1 rows; 2020-07-10 through 2020-07-10; source ID `msha-addresses`
- **Assessed Violations:** 10 rows; 2008-04-30 through 2008-04-30; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2009-10-14 through 2009-10-14; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 2 rows; 2008-04-30 through 2008-04-30; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 399 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 76 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 2007-04-10 through 2007-04-10; source ID `msha-controller-operator-history`
- **Inspections:** 9 rows; 2008-04-30 through 2026-04-10; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 10 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 10 rows; 2008-04-30 through 2008-04-30; 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/hidden-valley-5001861`
- JSON: `/api/v1/mines/hidden-valley-5001861`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/5001861/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/5001861/relationships`
- MCP resource: `mine://5001861/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`