# Huber Sand Pit #4

- **MSHA mine ID:** 1401355
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Hamilton, KS
- **Operator:** Huber Sand Inc
- **Controller:** Robin Lee  Huber
- **Public source rows linked:** 470
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Robin Lee  Huber (0177961) → Huber Sand Inc (L08239) → Huber Sand Pit #4 (1401355)**

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

## Controller and operator valid-time history

- **Huber Sand Company → Huber Sand Company:** 1980-03-01 through 2010-01-31; derived from co-tenure at mine 1401355; source `msha-controller-operator-history`.
- **Louis  Huber  et al → Huber Sand Inc:** 2010-02-01 through 2019-08-22; derived from co-tenure at mine 1401355; source `msha-controller-operator-history`.
- **Robin  Huber  et al → Huber Sand Inc:** 2010-02-01 through 2019-08-22; derived from co-tenure at mine 1401355; source `msha-controller-operator-history`.
- **Robin  Huber et al → Huber Sand Inc:** 2019-08-23 through 2023-04-24; derived from co-tenure at mine 1401355; source `msha-controller-operator-history`.
- **Barbara  Huber et al → Huber Sand Inc:** 2019-08-23 through 2023-04-24; derived from co-tenure at mine 1401355; source `msha-controller-operator-history`.
- **Robin Lee  Huber → Huber Sand Inc:** 2023-04-25 through current/open; derived from co-tenure at mine 1401355; source `msha-controller-operator-history`.

- History rows: 6
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 58 since 2021:** Violations and penalties 130 violation rows across the full record; 33 carry an S&S flag and $50,942 appears in current assessed amounts.
3. **HEALTH — 14 samples:** Occupational health samples 12 personal; 2 area. 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 10K employee hours and 17 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 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 — 13 since 2021:** Inspections 39 inspection events and 757 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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 56.16006 — Protection of gas cylinder valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16006
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.14132 — Horns and backup alarms.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **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 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **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 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300

## Source coverage

- **Addresses of Record:** 1 rows; 2015-07-01 through 2015-07-01; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2014-05-05 through 2014-05-05; source ID `msha-area-samples`
- **Assessed Violations:** 129 rows; 2010-03-31 through 2026-05-12; source ID `msha-assessed-violations`
- **Controller and Operator History:** 6 rows; 1980-03-01 through 2010-02-01; source ID `msha-controller-operator-history`
- **Inspections:** 39 rows; 2010-03-31 through 2026-05-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 119 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 31 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:** 12 rows; 2014-11-19 through 2024-09-18; source ID `msha-personal-health-samples`
- **Violations:** 130 rows; 2010-03-31 through 2026-05-12; 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/huber-sand-pit-4-1401355`
- JSON: `/api/v1/mines/huber-sand-pit-4-1401355`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1401355/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1401355/relationships`
- MCP resource: `mine://1401355/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`