# Tipton Ridge Quarry

- **MSHA mine ID:** 1500019
- **Status:** Temporarily Idled
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Estill, KY
- **Operator:** Hinkle Contracting Company LLC
- **Controller:** CRH PLC
- **Public source rows linked:** 717
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CRH PLC (M06183) → Hinkle Contracting Company LLC (L02333) → Tipton Ridge Quarry (1500019)**

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

## Controller and operator valid-time history

- **Summit Materials LLC → Hinkle Contracting Company LLC:** 1950-01-01 through 2022-05-13; derived from co-tenure at mine 1500019; source `msha-controller-operator-history`.
- **CRH PLC → Hinkle Contracting Company LLC:** 2022-05-14 through current/open; derived from co-tenure at mine 1500019; source `msha-controller-operator-history`.

- History rows: 2
- 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 — 6 since 2021:** Violations and penalties 68 violation rows across the full record; 14 carry an S&S flag and $8,955 appears in current assessed amounts.
3. **HEALTH — 81 samples:** Occupational health samples 79 personal; 2 area. 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 — 6 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 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 — 21 since 2021:** Inspections 120 inspection events and 2K 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 57.20021 — Abandoned mine openings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20021
- **30 CFR 57.18013 — Emergency communications system.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-Q/section-57.18013
- **30 CFR 57.14207 — Parking procedures for unattended equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14207
- **30 CFR 57.12035 — Weatherproof lamp sockets.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12035
- **30 CFR 57.9100 — Traffic control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-H/section-57.9100
- **30 CFR 57.5002 — Exposure monitoring.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-D/section-57.5002
- **30 CFR 57.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12008
- **30 CFR 57.4160 — Underground electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4160
- **30 CFR 57.3200 — Correction of hazardous conditions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3200
- **30 CFR 57.15031 — Location of self-rescue devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15031

## Source coverage

- **Addresses of Record:** 1 rows; 2023-09-12 through 2023-09-12; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2022-03-03 through 2022-03-03; source ID `msha-area-samples`
- **Assessed Violations:** 67 rows; 2000-04-12 through 2026-03-25; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2011-07-21 through 2011-07-21; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 4 rows; 2013-01-18 through 2026-05-14; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2010-12-29 through 2010-12-29; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 120 rows; 2000-01-10 through 2026-07-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 311 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 60 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:** 79 rows; 2002-07-03 through 2022-03-03; source ID `msha-personal-health-samples`
- **Violations:** 68 rows; 2000-04-12 through 2026-03-25; 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/tipton-ridge-quarry-1500019`
- JSON: `/api/v1/mines/tipton-ridge-quarry-1500019`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1500019/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1500019/relationships`
- MCP resource: `mine://1500019/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`