# Sheyenne Pit

- **MSHA mine ID:** 3200195
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Eddy, ND
- **Operator:** Gowan Construction Inc
- **Controller:** Mike Roy Gowan; Milton R Gowan
- **Public source rows linked:** 478
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Mike Roy Gowan; Milton R Gowan (0193400) → Gowan Construction Inc (0102967) → Sheyenne Pit (3200195)**

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

## Controller and operator valid-time history

- **Virgil A  Berglund → Sheyenne Sand & Gravel Inc:** 1950-01-01 through 1988-08-08; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Kost Brothers Inc → Sheyenne Sand & Gravel Inc:** 1988-08-09 through 1994-02-28; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Camas Plc → Camas Minndak Inc:** 1994-03-01 through 1997-05-13; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Camas Minndak Inc:** 1997-05-14 through 2002-03-06; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Aggregate Industries Inc:** 2002-03-07 through 2003-11-25; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Aggregate Industries-North Central Region Inc:** 2003-11-26 through 2009-04-29; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries Inc:** 2009-04-30 through 2003-11-25; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries-North Central Region Inc:** 2009-04-30 through 2009-07-23; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Milton R  Gowan → Gowan Construction Inc:** 2009-07-24 through 2025-05-18; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries Inc:** 2015-07-10 through 2003-11-25; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries-North Central Region Inc:** 2015-07-10 through 2009-07-23; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Milton R Gowan et al → Gowan Construction Inc:** 2025-05-19 through current/open; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Mike Roy Gowan et al → Gowan Construction Inc:** 2025-05-19 through current/open; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Amrize Ltd → Aggregate Industries Inc:** 2025-06-23 through 2003-11-25; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.
- **Amrize Ltd → Aggregate Industries-North Central Region Inc:** 2025-06-23 through 2009-07-23; derived from co-tenure at mine 3200195; source `msha-controller-operator-history`.

- History rows: 15
- Typed edges: 33
- Interval anomalies: 5
- 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 2 historical accident/injury rows; 0 coded fatalities and 21 lost days across the published record.
2. **COMPLIANCE — 4 since 2021:** Violations and penalties 51 violation rows across the full record; 10 carry an S&S flag and $6,886 appears in current assessed amounts.
3. **HEALTH — 4 samples:** Occupational health samples 4 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 4K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 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 38 inspection events and 530 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 56.12013 — Splices and repairs of power cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12013
- **30 CFR 56.14112 — Construction and maintenance of guards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 56.14101 — 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 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.12023 — Guarding electrical connections and resistor grids.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12023

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2008-08-28 through 2010-04-30; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1978-08-28 through 1978-08-28; source ID `msha-addresses`
- **Assessed Violations:** 51 rows; 2004-07-24 through 2023-08-21; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2015-11-10 through 2015-11-10; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 1 rows; 2015-05-08 through 2015-05-08; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 79 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 20 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 15 rows; 1950-01-01 through 2009-07-24; source ID `msha-controller-operator-history`
- **Inspections:** 38 rows; 2000-05-02 through 2026-08-19; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 175 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 39 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:** 4 rows; 2010-06-29 through 2021-07-15; source ID `msha-personal-health-samples`
- **Violations:** 51 rows; 2004-07-24 through 2023-08-21; 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/sheyenne-pit-3200195`
- JSON: `/api/v1/mines/sheyenne-pit-3200195`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3200195/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3200195/relationships`
- MCP resource: `mine://3200195/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`