# Plant 5

- **MSHA mine ID:** 2102499
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** St Louis, MN
- **Operator:** Ulland Brothers Inc
- **Controller:** Jeff A  Carlson
- **Public source rows linked:** 512
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Jeff A  Carlson (0161621) → Ulland Brothers Inc (L00503) → Plant 5 (2102499)**

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

## Controller and operator valid-time history

- **Orlin L  Ofstad et al → Ulland Brothers Inc:** 1950-01-01 through 2020-12-31; derived from co-tenure at mine 2102499; source `msha-controller-operator-history`.
- **Jeff A  Carlson → Ulland Brothers Inc:** 2021-01-01 through current/open; derived from co-tenure at mine 2102499; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- 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 7 historical accident/injury rows; 0 coded fatalities and 6 lost days across the published record.
2. **COMPLIANCE — 9 since 2021:** Violations and penalties 36 violation rows across the full record; 9 carry an S&S flag and $4,562 appears in current assessed amounts.
3. **HEALTH — 10 samples:** Occupational health samples 10 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 525 employee hours and 9 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 3 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 3 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 — 9 since 2021:** Inspections 38 inspection events and 331 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 46.4 — Training plan implementation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.4
- **30 CFR 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **30 CFR 56.4101 — Warning signs.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **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 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 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 56.14100 — 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
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004

## Source coverage

- **Accident, Injuries, and Illnesses:** 7 rows; 2001-07-02 through 2013-10-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-04-15 through 2013-04-15; source ID `msha-addresses`
- **Assessed Violations:** 36 rows; 2001-10-04 through 2022-08-09; source ID `msha-assessed-violations`
- **Conferences:** 3 rows; 2021-07-23 through 2021-07-23; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 117 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 19 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 38 rows; 2001-07-05 through 2026-06-24; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 196 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 46 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:** 10 rows; 2007-05-23 through 2026-06-24; source ID `msha-personal-health-samples`
- **Violations:** 36 rows; 2001-10-04 through 2022-08-09; 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/plant-5-2102499`
- JSON: `/api/v1/mines/plant-5-2102499`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2102499/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2102499/relationships`
- MCP resource: `mine://2102499/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`