# WATAUGA QUARRY

- **MSHA mine ID:** 4000124
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Carter, TN
- **Operator:** Martin Marietta Southeast Agg Operations, LLC
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 1,484
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Southeast Agg Operations, LLC (0200133) → WATAUGA QUARRY (4000124)**

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

## Controller and operator valid-time history

- **Asarco Inc → American Limestone Company Inc:** 1950-01-01 through 1999-11-16; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Grupo Mexico S A B de C V → American Limestone Company Inc:** 1999-11-17 through 2000-06-30; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **CSR Ltd → Rinker Materials South Central, Inc.:** 2000-07-01 through 2003-03-31; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Rinker Group Ltd → Rinker Materials South Central, Inc.:** 2003-04-01 through 2007-07-09; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Cemex S A → Rinker Materials South Central, Inc.:** 2007-07-10 through 2008-02-21; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Ready Mix USA Inc → Aggregates USA LLC:** 2008-02-22 through 2010-02-05; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Aggregates USA Holdings LLC → Aggregates USA LLC:** 2010-02-06 through 2017-12-29; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Blue Water Industries Holdings LLC → Blue Water Industries:** 2017-12-30 through 2024-04-28; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Blue Water Industries:** 2024-04-29 through 2024-12-11; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Southeast Agg Operations, LLC:** 2024-12-12 through current/open; derived from co-tenure at mine 4000124; source `msha-controller-operator-history`.

- History rows: 10
- Typed edges: 27
- 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 — 4 since 2021:** Accidents and injuries 12 historical accident/injury rows; 0 coded fatalities and 200 lost days across the published record.
2. **COMPLIANCE — 9 since 2021:** Violations and penalties 65 violation rows across the full record; 7 carry an S&S flag and $6,693 appears in current assessed amounts.
3. **HEALTH — 51 samples:** Occupational health samples 51 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 10K employee hours and 18 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 — 15 since 2021:** Inspections 82 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 56.14110 — Flying or falling materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14110
- **30 CFR 56.4501 — Fuel lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4501
- **30 CFR 50.20-7 — Criteria—MSHA Form 7000-1, Section D.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-7
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **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 56.12004 — 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 56.12065 — Short circuit and lightning protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12065
- **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 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101

## Source coverage

- **Accident, Injuries, and Illnesses:** 12 rows; 2000-08-16 through 2026-09-11; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-05-04 through 2012-05-04; source ID `msha-addresses`
- **Assessed Violations:** 61 rows; 2000-01-25 through 2026-08-06; source ID `msha-assessed-violations`
- **Conferences:** 2 rows; 2002-01-16 through 2002-06-03; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 634 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 166 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 10 rows; 1950-01-01 through 2024-12-12; source ID `msha-controller-operator-history`
- **Inspections:** 82 rows; 2000-01-25 through 2026-08-25; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 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:** 51 rows; 2004-03-18 through 2026-09-01; source ID `msha-personal-health-samples`
- **Violations:** 65 rows; 2000-01-25 through 2026-08-31; 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/watauga-quarry-4000124`
- JSON: `/api/v1/mines/watauga-quarry-4000124`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4000124/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4000124/relationships`
- MCP resource: `mine://4000124/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`