# Lippman Rip Rap

- **MSHA mine ID:** 1401709
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Dickinson, KS
- **Operator:** Martin Marietta Materials, Inc.
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 588
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Materials, Inc. (L16197) → Lippman Rip Rap (1401709)**

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

## Controller and operator valid-time history

- **N R  Hamm → Hamm Inc.:** 2009-09-14 through 2012-02-08; derived from co-tenure at mine 1401709; source `msha-controller-operator-history`.
- **Summit Materials LLC → Hamm Inc.:** 2012-02-09 through 2026-03-22; derived from co-tenure at mine 1401709; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials, Inc.:** 2026-03-23 through current/open; derived from co-tenure at mine 1401709; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- 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 — 2 since 2021:** Accidents and injuries 2 historical accident/injury rows; 0 coded fatalities and 30 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 6 violation rows across the full record; 2 carry an S&S flag and $730 appears in current assessed amounts.
3. **HEALTH — 2 samples:** Occupational health samples 2 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 726 employee hours and 3 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 — 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 — 7 since 2021:** Inspections 15 inspection events and 124 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 56.14132 — 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 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4601
- **30 CFR 56.7002 — Equipment defects.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-F/section-56.7002
- **30 CFR 58.620 — Drill dust control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-58/subpart-E/section-58.620

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2021-10-12 through 2021-11-30; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2017-05-10 through 2017-05-10; source ID `msha-addresses`
- **Assessed Violations:** 6 rows; 2009-09-14 through 2022-07-06; source ID `msha-assessed-violations`
- **Contractor Employment and Production — Quarterly:** 313 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 73 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2009-09-14 through 2026-03-23; source ID `msha-controller-operator-history`
- **Inspections:** 15 rows; 2009-09-14 through 2026-03-18; 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:** 2 rows; 2011-09-13 through 2017-10-12; source ID `msha-personal-health-samples`
- **Violations:** 6 rows; 2009-09-14 through 2022-07-06; 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/lippman-rip-rap-1401709`
- JSON: `/api/v1/mines/lippman-rip-rap-1401709`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1401709/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1401709/relationships`
- MCP resource: `mine://1401709/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`