# Hammett Gravel Company-Yazoo

- **MSHA mine ID:** 2200189
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Yazoo, MS
- **Operator:** Hammett Gravel Company Inc
- **Controller:** Harold P  Hammett Jr
- **Public source rows linked:** 715
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-18T09:31:49.615Z

## Current entity hierarchy

**Harold P  Hammett Jr (0150701) → Hammett Gravel Company Inc (L03919) → Hammett Gravel Company-Yazoo (2200189)**

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

## Controller and operator valid-time history

- **Ashland Inc → Apac-Mississippi Inc:** 1950-01-01 through 1981-06-30; derived from co-tenure at mine 2200189; source `msha-controller-operator-history`.
- **W C  Petermann → Petermann Gravel Inc:** 1981-07-01 through 1984-02-28; derived from co-tenure at mine 2200189; source `msha-controller-operator-history`.
- **Heyward C  Green  et al → Hammett Gravel Company Inc:** 1984-02-29 through 2019-08-15; derived from co-tenure at mine 2200189; source `msha-controller-operator-history`.
- **Harold P  Hammett Jr  et al → Hammett Gravel Company Inc:** 1984-02-29 through 2019-08-15; derived from co-tenure at mine 2200189; source `msha-controller-operator-history`.
- **CRH PLC → Apac-Mississippi Inc:** 2006-08-28 through 1981-06-30; derived from co-tenure at mine 2200189; source `msha-controller-operator-history`.
- **Harold P  Hammett Jr → Hammett Gravel Company Inc:** 2019-08-16 through current/open; derived from co-tenure at mine 2200189; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 14
- Interval anomalies: 1
- 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: 2026-10-18T09:31:49.615908+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 10 historical accident/injury rows; 0 coded fatalities and 281 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 149 violation rows across the full record; 55 carry an S&S flag and $89,498 appears in current assessed amounts.
3. **HEALTH — 34 samples:** Occupational health samples 34 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 5K employee hours and 8 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 77 linked rows:** Contests, conferences and decisions 38 contested-violation rows, 37 civil-penalty docket/decision rows, and 2 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 — 0 since 2021:** Inspections 40 inspection events and 728 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 46.9 — 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 56.14100 — 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 56.14101 — 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 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **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 56.14112 — 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 56.12040 — Installation of operating controls.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12040
- **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 56.4330 — Firefighting, evacuation, and rescue procedures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4330
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 10 rows; 2000-03-09 through 2015-10-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2016-06-10 through 2016-06-10; source ID `msha-addresses`
- **Assessed Violations:** 147 rows; 2000-04-06 through 2015-09-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 37 rows; 2007-04-26 through 2013-11-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2000-08-15 through 2000-08-15; source ID `msha-conferences`
- **Contested Violations:** 38 rows; 2006-06-22 through 2011-11-09; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 65 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:** 6 rows; 1950-01-01 through 1984-02-29; source ID `msha-controller-operator-history`
- **Inspections:** 40 rows; 2000-04-06 through 2015-09-21; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 132 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 34 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:** 34 rows; 2005-01-04 through 2012-10-25; source ID `msha-personal-health-samples`
- **Violations:** 149 rows; 2000-04-06 through 2015-09-22; 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/hammett-gravel-company-yazoo-2200189`
- JSON: `/api/v1/mines/hammett-gravel-company-yazoo-2200189`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2200189/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2200189/relationships`
- MCP resource: `mine://2200189/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`