# Musgrave Pit

- **MSHA mine ID:** 4105118
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Jim Hogg, TX
- **Operator:** Anderson Columbia Co., Inc.
- **Controller:** Joseph H  Anderson
- **Public source rows linked:** 794
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Joseph H  Anderson (M04840) → Anderson Columbia Co., Inc. (L15363) → Musgrave Pit (4105118)**

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

## Controller and operator valid-time history

- **Joseph H  Anderson et al → Anderson Columbia Co., Inc.:** 2015-02-18 through current/open; derived from co-tenure at mine 4105118; 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 2 historical accident/injury rows; 0 coded fatalities and 415 lost days across the published record.
2. **COMPLIANCE — 65 since 2021:** Violations and penalties 144 violation rows across the full record; 31 carry an S&S flag and $65,161 appears in current assessed amounts.
3. **HEALTH — 5 samples:** Occupational health samples 5 personal. 1 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 17K employee hours and 22 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 72 linked rows:** Contests, conferences and decisions 35 contested-violation rows, 35 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 — 16 since 2021:** Inspections 40 inspection events and 607 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 56.12023 — 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 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 56.11003 — 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 56.14112 — 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 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **30 CFR 46.7 — New task training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **30 CFR 56.18002 — Examination of working places.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.12027 — Grounding mobile equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12027

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2016-06-24 through 2019-01-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2015-03-30 through 2015-03-30; source ID `msha-addresses`
- **Assessed Violations:** 138 rows; 2015-03-31 through 2026-07-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 35 rows; 2016-07-15 through 2025-04-15; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2021-01-08 through 2025-05-06; source ID `msha-conferences`
- **Contested Violations:** 35 rows; 2015-10-27 through 2026-01-29; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 288 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 44 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 2015-02-18 through 2015-02-18; source ID `msha-controller-operator-history`
- **Inspections:** 40 rows; 2015-03-31 through 2026-07-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 46 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 12 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:** 5 rows; 2015-04-02 through 2024-12-04; source ID `msha-personal-health-samples`
- **Violations:** 144 rows; 2015-03-31 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/musgrave-pit-4105118`
- JSON: `/api/v1/mines/musgrave-pit-4105118`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4105118/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4105118/relationships`
- MCP resource: `mine://4105118/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`