# Glacier Rock Pit

- **MSHA mine ID:** 0504634
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Larimer, CO
- **Operator:** Glacier Rock Company
- **Controller:** Roger Lee  Hageman
- **Public source rows linked:** 421
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Roger Lee  Hageman (0112421) → Glacier Rock Company (0132234) → Glacier Rock Pit (0504634)**

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

## Controller and operator valid-time history

- **Jim D  Krakel → Timberline Trucking & Excavating:** 1999-02-01 through 2002-08-19; derived from co-tenure at mine 0504634; source `msha-controller-operator-history`.
- **Robert  Pittington Sr  et al → High Plains Sand & Gravel LLC:** 2002-08-20 through 2014-03-18; derived from co-tenure at mine 0504634; source `msha-controller-operator-history`.
- **Robert  Pittington Jr  et al → High Plains Sand & Gravel LLC:** 2002-08-20 through 2014-03-18; derived from co-tenure at mine 0504634; source `msha-controller-operator-history`.
- **Roger Lee  Hageman → Glacier Rock Company:** 2014-03-19 through current/open; derived from co-tenure at mine 0504634; 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 — 1 since 2021:** Accidents and injuries 4 historical accident/injury rows; 1 coded fatalities and 1 lost days across the published record.
2. **COMPLIANCE — 14 since 2021:** Violations and penalties 75 violation rows across the full record; 18 carry an S&S flag and $9,836 appears in current assessed amounts.
3. **HEALTH — 7 samples:** Occupational health samples 7 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 25 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 1 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 — 10 since 2021:** Inspections 46 inspection events and 655 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **30 CFR 41.30 — Address of record and telephone number.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-C/section-41.30
- **30 CFR 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 46.8 — Annual refresher training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.8
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100

## Source coverage

- **Accident, Injuries, and Illnesses:** 4 rows; 2002-10-12 through 2022-08-25; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2023-11-06 through 2023-11-06; source ID `msha-addresses`
- **Assessed Violations:** 74 rows; 2002-08-20 through 2026-07-15; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2002-10-16 through 2002-10-16; source ID `msha-conferences`
- **Controller and Operator History:** 4 rows; 1999-02-01 through 2014-03-19; source ID `msha-controller-operator-history`
- **Inspections:** 46 rows; 2001-02-26 through 2026-07-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 165 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 43 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:** 7 rows; 2003-01-30 through 2020-05-27; source ID `msha-personal-health-samples`
- **Violations:** 75 rows; 2002-08-20 through 2026-07-15; 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/glacier-rock-pit-0504634`
- JSON: `/api/v1/mines/glacier-rock-pit-0504634`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0504634/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0504634/relationships`
- MCP resource: `mine://0504634/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`