# Radnor Quarry

- **MSHA mine ID:** 3300137
- **Status:** Temporarily Idled
- **Type / commodity:** Surface / Dimension Limestone
- **Location:** Hancock, OH
- **Operator:** The National Lime and Stone Company
- **Controller:** National Lime & Stone Co.
- **Public source rows linked:** 178
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**National Lime & Stone Co. (M00255) → The National Lime and Stone Company (L00317) → Radnor Quarry (3300137)**

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

## Controller and operator valid-time history

- **Walter P Penry et al → Penry Stone Company:** 1950-01-01 through 2000-02-16; derived from co-tenure at mine 3300137; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Aggregates:** 2000-02-17 through 2003-03-17; derived from co-tenure at mine 3300137; source `msha-controller-operator-history`.
- **National Lime & Stone Co. → The National Lime & Stone Company:** 2003-03-18 through 2004-09-21; derived from co-tenure at mine 3300137; source `msha-controller-operator-history`.
- **Cliff L  Hill → The Hill Stone Company:** 2004-09-22 through 2007-03-29; derived from co-tenure at mine 3300137; source `msha-controller-operator-history`.
- **National Lime & Stone Co. → Cascades Cut Stone Company:** 2007-03-30 through 2024-11-17; derived from co-tenure at mine 3300137; source `msha-controller-operator-history`.
- **National Lime & Stone Co. → The National Lime and Stone Company:** 2024-11-18 through current/open; derived from co-tenure at mine 3300137; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 17
- 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 3 historical accident/injury rows; 0 coded fatalities and 2 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 20 violation rows across the full record; 8 carry an S&S flag and $6,056 appears in current assessed amounts.
3. **HEALTH — 3 samples:** Occupational health samples 3 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 4 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 — 0 since 2021:** Inspections 17 inspection events and 194 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 47.31 — Requirement for a HazCom program.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-D/section-47.31
- **30 CFR 56.9100 — Traffic control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9100
- **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 56.18009 — Designation of person in charge.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18009
- **30 CFR 56.9301 — Dump site restraints.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9301
- **30 CFR 56.9303 — Construction of ramps and dumping facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9303
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 46.11 — Site-specific hazard awareness training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.11
- **30 CFR 62.120 — Action level.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.120

## Source coverage

- **Accident, Injuries, and Illnesses:** 3 rows; 2007-11-02 through 2008-08-19; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-12-16 through 2024-12-16; source ID `msha-addresses`
- **Assessed Violations:** 20 rows; 2000-07-05 through 2007-07-02; source ID `msha-assessed-violations`
- **Conferences:** 4 rows; 2006-06-28 through 2006-06-28; source ID `msha-conferences`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2024-11-18; source ID `msha-controller-operator-history`
- **Inspections:** 17 rows; 2000-07-05 through 2010-09-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 84 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 19 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:** 3 rows; 2002-09-10 through 2002-09-10; source ID `msha-personal-health-samples`
- **Violations:** 20 rows; 2000-07-05 through 2007-07-02; 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/radnor-quarry-3300137`
- JSON: `/api/v1/mines/radnor-quarry-3300137`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3300137/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3300137/relationships`
- MCP resource: `mine://3300137/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`