# Billings Pit

- **MSHA mine ID:** 2400478
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Yellowstone, MT
- **Operator:** Knife River Billings
- **Controller:** Knife River Corporation
- **Public source rows linked:** 469
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Knife River Corporation (0176802) → Knife River Billings (L17688) → Billings Pit (2400478)**

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

## Controller and operator valid-time history

- **United Companies → Midland Materials Company:** 1950-01-01 through 1987-07-05; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.
- **Dean  Studer → Midland O'Leary Inc:** 1987-07-06 through 1989-03-31; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.
- **United Companies → Midland O'Leary Inc:** 1989-04-01 through 1990-06-30; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.
- **JTL Group Inc → Midland O'Leary Inc:** 1990-07-01 through 1991-06-30; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.
- **Ralph J  Studer Jr → Midland O'Leary Inc:** 1991-07-01 through 1994-12-31; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.
- **JTL Group Inc → Jtl Group Inc:** 1995-01-01 through 2002-06-23; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.
- **MDU Resources Group Inc → Knife River Billings:** 2002-06-24 through 2023-05-31; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.
- **Knife River Corporation → Knife River Billings:** 2023-06-01 through current/open; derived from co-tenure at mine 2400478; source `msha-controller-operator-history`.

- History rows: 8
- Typed edges: 23
- 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 1 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 38 violation rows across the full record; 4 carry an S&S flag and $3,942 appears in current assessed amounts.
3. **HEALTH — 15 samples:** Occupational health samples 15 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 692 employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 5 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 1 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 — 8 since 2021:** Inspections 48 inspection events and 617 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 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.11003 — Construction and maintenance of ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11003
- **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 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **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 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **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
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2005-06-01 through 2005-06-01; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-11-12 through 2024-11-12; source ID `msha-addresses`
- **Assessed Violations:** 38 rows; 2001-08-09 through 2021-07-21; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2012-01-26 through 2015-06-23; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2003-06-25 through 2003-06-25; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2011-01-25 through 2014-05-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 90 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 23 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 8 rows; 1950-01-01 through 2002-06-24; source ID `msha-controller-operator-history`
- **Inspections:** 48 rows; 2000-12-19 through 2026-04-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 162 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:** 15 rows; 2002-05-16 through 2025-11-14; source ID `msha-personal-health-samples`
- **Violations:** 38 rows; 2001-08-09 through 2021-07-21; 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/billings-pit-2400478`
- JSON: `/api/v1/mines/billings-pit-2400478`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2400478/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2400478/relationships`
- MCP resource: `mine://2400478/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`