# Rockcastle County Quarry

- **MSHA mine ID:** 1518933
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Rockcastle, KY
- **Operator:** Rockcastle Materials
- **Controller:** L-M Holdings Inc; Steve L Lawson; Shelbi M Lawson; Steve A Lawson; Tyler
- **Public source rows linked:** 691
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**L-M Holdings Inc; Steve L Lawson; Shelbi M Lawson; Steve A Lawson; Tyler (0163383) → Rockcastle Materials (0177673) → Rockcastle County Quarry (1518933)**

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

## Controller and operator valid-time history

- **Donnie  Hill et al → Hi-View, LLC:** 2012-11-27 through 2019-09-02; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **Tim  Hill et al → Hi-View, LLC:** 2012-11-27 through 2019-09-02; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **Julie  Hill et al → ROCK & DIRT, LLC:** 2019-09-03 through 2021-07-01; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **Tim  Hill et al → ROCK & DIRT, LLC:** 2019-09-03 through 2021-07-01; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **Shelbi M Lawson Et Al → Rockcastle Materials:** 2021-07-02 through current/open; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **Steve L Lawson Et Al → Rockcastle Materials:** 2021-07-02 through current/open; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **Steve A Lawson Et Al → Rockcastle Materials:** 2021-07-02 through current/open; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **Tyler G Lawson Et Al → Rockcastle Materials:** 2021-07-02 through current/open; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.
- **L-M Holdings Inc Et Al → Rockcastle Materials:** 2021-07-02 through current/open; derived from co-tenure at mine 1518933; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 15
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 4 since 2021:** Accidents and injuries 6 historical accident/injury rows; 0 coded fatalities and 162 lost days across the published record.
2. **COMPLIANCE — 24 since 2021:** Violations and penalties 84 violation rows across the full record; 26 carry an S&S flag and $11,352 appears in current assessed amounts.
3. **HEALTH — 23 samples:** Occupational health samples 23 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
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 — 14 since 2021:** Inspections 40 inspection events and 713 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 56.14107 — Moving machine parts.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **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 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 56.12001 — Circuit overload protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12001

## Source coverage

- **Accident, Injuries, and Illnesses:** 6 rows; 2015-10-30 through 2026-04-14; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-12-03 through 2012-12-03; source ID `msha-addresses`
- **Assessed Violations:** 80 rows; 2013-02-06 through 2026-07-01; source ID `msha-assessed-violations`
- **Contractor Employment and Production — Quarterly:** 343 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 75 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 2012-11-27 through 2021-07-02; source ID `msha-controller-operator-history`
- **Inspections:** 40 rows; 2013-02-06 through 2026-09-28; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 29 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:** 23 rows; 2013-06-26 through 2026-09-29; source ID `msha-personal-health-samples`
- **Violations:** 84 rows; 2013-02-06 through 2026-09-29; 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/rockcastle-county-quarry-1518933`
- JSON: `/api/v1/mines/rockcastle-county-quarry-1518933`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1518933/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1518933/relationships`
- MCP resource: `mine://1518933/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`