# Pakkebier Rock Quarry

- **MSHA mine ID:** 1401836
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Quartzite
- **Location:** Graham, KS
- **Operator:** AM Gravel LLC
- **Controller:** Adam  Pfeifer; Leon  Pfeifer; Pfeifer  Marcus
- **Public source rows linked:** 136
- **Source coverage:** 9 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Adam  Pfeifer; Leon  Pfeifer; Pfeifer  Marcus (0175440) → AM Gravel LLC (0187813) → Pakkebier Rock Quarry (1401836)**

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

## Controller and operator valid-time history

- **Adam  Pfeifer et al → AM Gravel LLC:** 2023-02-06 through current/open; derived from co-tenure at mine 1401836; source `msha-controller-operator-history`.
- **Leon  Pfeifer et al → AM Gravel LLC:** 2023-02-06 through current/open; derived from co-tenure at mine 1401836; source `msha-controller-operator-history`.
- **Pfeifer  Marcus et al → AM Gravel LLC:** 2023-02-06 through current/open; derived from co-tenure at mine 1401836; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 5
- 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 34 since 2021:** Violations and penalties 34 violation rows across the full record; 7 carry an S&S flag and $14,384 appears in current assessed amounts.
3. **HEALTH — 1 samples:** Occupational health samples 1 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 910 employee hours and 5 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 — 11 since 2021:** Inspections 11 inspection events and 133 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 56.12028 — Testing grounding systems.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **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 56.14105 — Procedures during repairs or maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14105
- **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 56.14107 — 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 56.14132 — 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 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **30 CFR 56.20008 — Toilet facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20008
- **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 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

## Source coverage

- **Addresses of Record:** 1 rows; 2024-10-01 through 2024-10-01; source ID `msha-addresses`
- **Assessed Violations:** 34 rows; 2023-06-06 through 2026-03-05; source ID `msha-assessed-violations`
- **Controller and Operator History:** 3 rows; 2023-02-06 through 2023-02-06; source ID `msha-controller-operator-history`
- **Inspections:** 11 rows; 2023-05-17 through 2026-08-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 39 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:** 1 rows; 2025-08-21 through 2025-08-21; source ID `msha-personal-health-samples`
- **Violations:** 34 rows; 2023-06-06 through 2026-03-05; 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/pakkebier-rock-quarry-1401836`
- JSON: `/api/v1/mines/pakkebier-rock-quarry-1401836`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1401836/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1401836/relationships`
- MCP resource: `mine://1401836/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`