# SWEETHOME

- **MSHA mine ID:** 0503062
- **Status:** Abandoned
- **Type / commodity:** Underground / Gemstones
- **Location:** Park, CO
- **Operator:** Colorado Calumet Company Inc
- **Controller:** Bryan K  Lees
- **Public source rows linked:** 85
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Bryan K  Lees (M38926) → Colorado Calumet Company Inc (L18051) → SWEETHOME (0503062)**

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

## Controller and operator valid-time history

- **Bryan K  Lees → Colorado Calumet Company Inc:** 1950-01-01 through current/open; derived from co-tenure at mine 0503062; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 — 0 since 2021:** Violations and penalties 7 violation rows across the full record; 3 carry an S&S flag and $922 appears in current assessed amounts.
3. **HEALTH — 14 samples:** Occupational health samples 12 personal; 2 area. 2 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 986 employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 2 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 — 0 since 2021:** Inspections 10 inspection events and 175 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 49.6 — Equipment and maintenance requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-49/subpart-A/section-49.6
- **30 CFR 57.12001 — Circuit overload protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12001
- **30 CFR 57.4760 — Shaft mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4760
- **30 CFR 57.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12004
- **30 CFR 57.14130 — Roll-over protective structures (ROPS) and seat belts for surface equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14130
- **30 CFR 57.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11001

## Source coverage

- **Addresses of Record:** 1 rows; 2004-11-01 through 2004-11-01; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2003-09-03 through 2003-09-03; source ID `msha-area-samples`
- **Assessed Violations:** 7 rows; 2001-06-21 through 2003-11-13; source ID `msha-assessed-violations`
- **Conferences:** 2 rows; 2001-08-09 through 2003-11-26; source ID `msha-conferences`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 10 rows; 2000-01-20 through 2004-09-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 33 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 9 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; 2003-09-03 through 2004-06-30; source ID `msha-personal-health-samples`
- **Violations:** 7 rows; 2001-06-21 through 2003-11-13; 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/sweethome-0503062`
- JSON: `/api/v1/mines/sweethome-0503062`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0503062/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0503062/relationships`
- MCP resource: `mine://0503062/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`