# North Wilkesboro Quarry

- **MSHA mine ID:** 3102253
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Granite
- **Location:** Wilkes, NC
- **Operator:** Blue Water Industries II LLC
- **Controller:** Blue Water Industries Holdings 2 LLC
- **Public source rows linked:** 559
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Blue Water Industries Holdings 2 LLC (0184981) → Blue Water Industries II LLC (0195893) → North Wilkesboro Quarry (3102253)**

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

## Controller and operator valid-time history

- **Bart Christopher  Mathis → Mathis Quarries, Inc.:** 2009-10-01 through 2023-01-12; derived from co-tenure at mine 3102253; source `msha-controller-operator-history`.
- **Blue Water Industries Holdings LLC → Blue Water Industries LLC:** 2023-01-13 through 2024-04-28; derived from co-tenure at mine 3102253; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Blue Water Industries LLC:** 2024-04-29 through 2024-05-09; derived from co-tenure at mine 3102253; source `msha-controller-operator-history`.
- **Blue Water Industries Holdings 2 LLC → Blue Water Industries II LLC:** 2024-05-10 through current/open; derived from co-tenure at mine 3102253; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- 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 — 1 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 2 since 2021:** Violations and penalties 41 violation rows across the full record; 8 carry an S&S flag and $7,058 appears in current assessed amounts.
3. **HEALTH — 24 samples:** Occupational health samples 21 personal; 3 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 10 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 4 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 13 since 2021:** Inspections 54 inspection events and 732 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 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.14132 — Horns and backup alarms.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **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 56.11016 — Snow and ice on walkways and travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11016
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2026-07-02 through 2026-07-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2010-01-22 through 2010-01-22; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 3 rows; 2021-02-03 through 2023-02-28; source ID `msha-area-samples`
- **Assessed Violations:** 41 rows; 2010-01-20 through 2026-04-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2011-04-19 through 2014-10-15; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 4 rows; 2011-05-24 through 2011-05-24; source ID `msha-conferences`
- **Contested Violations:** 3 rows; 2010-01-20 through 2014-02-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 276 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 61 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 2009-10-01 through 2024-05-10; source ID `msha-controller-operator-history`
- **Inspections:** 54 rows; 2010-01-20 through 2026-04-22; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 45 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:** 21 rows; 2010-05-11 through 2025-11-05; source ID `msha-personal-health-samples`
- **Violations:** 41 rows; 2010-01-20 through 2026-04-22; 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/north-wilkesboro-quarry-3102253`
- JSON: `/api/v1/mines/north-wilkesboro-quarry-3102253`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3102253/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3102253/relationships`
- MCP resource: `mine://3102253/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`