# Gum Log Quarry

- **MSHA mine ID:** 0301618
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Sandstone
- **Location:** Pope, AR
- **Operator:** Ronnie Duffield Gravel Company
- **Controller:** Matt  Duffield; Luke B Duffield; David D Duffield
- **Public source rows linked:** 860
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Matt  Duffield; Luke B Duffield; David D Duffield (0169560) → Ronnie Duffield Gravel Company (L03692) → Gum Log Quarry (0301618)**

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

## Controller and operator valid-time history

- **Ronald  Duffield → Ronnie Duffield Gravel Company:** 1987-01-01 through 2020-06-07; derived from co-tenure at mine 0301618; source `msha-controller-operator-history`.
- **Luke B Duffield et al → Ronnie Duffield Gravel Company:** 2020-06-08 through 2022-06-02; derived from co-tenure at mine 0301618; source `msha-controller-operator-history`.
- **Ronald M Duffield et al → Ronnie Duffield Gravel Company:** 2020-06-08 through 2022-06-02; derived from co-tenure at mine 0301618; source `msha-controller-operator-history`.
- **David D Duffield et al → Ronnie Duffield Gravel Company:** 2020-06-08 through 2022-06-02; derived from co-tenure at mine 0301618; source `msha-controller-operator-history`.
- **Matt  Duffield et al → Ronnie Duffield Gravel Company:** 2022-06-03 through current/open; derived from co-tenure at mine 0301618; source `msha-controller-operator-history`.
- **David D Duffield et al → Ronnie Duffield Gravel Company:** 2022-06-03 through current/open; derived from co-tenure at mine 0301618; source `msha-controller-operator-history`.
- **Luke B Duffield et al → Ronnie Duffield Gravel Company:** 2022-06-03 through current/open; derived from co-tenure at mine 0301618; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 11
- 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 — 1 since 2021:** Accidents and injuries 5 historical accident/injury rows; 0 coded fatalities and 424 lost days across the published record.
2. **COMPLIANCE — 27 since 2021:** Violations and penalties 105 violation rows across the full record; 20 carry an S&S flag and $22,104 appears in current assessed amounts.
3. **HEALTH — 98 samples:** Occupational health samples 98 personal. 4 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 14K employee hours and 23 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 15 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 7 civil-penalty docket/decision rows, and 8 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 — 14 since 2021:** Inspections 64 inspection events and 1K 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 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **30 CFR 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.14112 — Construction and maintenance of guards.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 50.20-1 — General instructions for completing MSHA Form 7000-1.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-1
- **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 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2005-09-29 through 2025-01-13; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2004-04-23 through 2004-04-23; source ID `msha-addresses`
- **Assessed Violations:** 104 rows; 2001-03-12 through 2026-05-13; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2003-11-05 through 2003-11-05; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 8 rows; 2003-02-28 through 2003-02-28; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 163 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 35 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1987-01-01 through 1987-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 64 rows; 2001-03-12 through 2026-05-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 208 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 98 rows; 2001-11-07 through 2025-09-16; source ID `msha-personal-health-samples`
- **Violations:** 105 rows; 2001-03-12 through 2026-05-13; 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/gum-log-quarry-0301618`
- JSON: `/api/v1/mines/gum-log-quarry-0301618`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0301618/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0301618/relationships`
- MCP resource: `mine://0301618/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`