# HIGH RD QUARRY

- **MSHA mine ID:** 4300019
- **Status:** Intermittent
- **Type / commodity:** Surface / Dimension Slate
- **Location:** Rutland, VT
- **Operator:** HILLTOP SLATE INC
- **Controller:** Northeast Slate Incorporated
- **Public source rows linked:** 487
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Northeast Slate Incorporated (0086795) → HILLTOP SLATE INC (L08523) → HIGH RD QUARRY (4300019)**

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

## Controller and operator valid-time history

- **James M  Mertz → Rising & Nelson Slate Company Inc:** 1950-01-01 through 1986-01-21; derived from co-tenure at mine 4300019; source `msha-controller-operator-history`.
- **Richard R  Rupe et al → Rupe Slate Company:** 1986-01-22 through 2024-03-26; derived from co-tenure at mine 4300019; source `msha-controller-operator-history`.
- **Northeast Slate Incorporated → HILLTOP SLATE INC:** 2024-03-27 through current/open; derived from co-tenure at mine 4300019; source `msha-controller-operator-history`.
- **Alfred Mc Alpine Inc → HILLTOP SLATE INC:** 2024-03-27 through 2008-01-15; derived from co-tenure at mine 4300019; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- Interval anomalies: 1
- 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 5 historical accident/injury rows; 0 coded fatalities and 13 lost days across the published record.
2. **COMPLIANCE — 6 since 2021:** Violations and penalties 53 violation rows across the full record; 10 carry an S&S flag and $6,309 appears in current assessed amounts.
3. **HEALTH — 17 samples:** Occupational health samples 17 personal. 2 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 780 employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 1 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 — 9 since 2021:** Inspections 57 inspection events and 645 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 56.14100 — 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 56.9301 — Dump site restraints.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9301
- **30 CFR 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 56.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15004

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2001-12-18 through 2012-07-31; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-03-09 through 2020-03-09; source ID `msha-addresses`
- **Assessed Violations:** 51 rows; 2003-02-11 through 2026-08-19; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2006-05-11 through 2006-05-11; source ID `msha-conferences`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2024-03-27; source ID `msha-controller-operator-history`
- **Inspections:** 57 rows; 2000-06-20 through 2026-08-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 244 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 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:** 17 rows; 2003-10-15 through 2026-08-19; source ID `msha-personal-health-samples`
- **Violations:** 53 rows; 2003-02-11 through 2026-08-19; 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/high-rd-quarry-4300019`
- JSON: `/api/v1/mines/high-rd-quarry-4300019`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4300019/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4300019/relationships`
- MCP resource: `mine://4300019/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`