# TRI-CITIES AIRPORT QUARRY

- **MSHA mine ID:** 4001657
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Sullivan, TN
- **Operator:** Martin Marietta Southeast Agg Operations, LLC
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 1,320
- **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) → TRI-CITIES AIRPORT QUARRY (4001657)**

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 4001657; 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 4001657; 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 4001657; 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 4001657; 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 4001657; 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 4001657; 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 4001657; 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 4001657; 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 4001657; 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 4001657; 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 — 0 since 2021:** Accidents and injuries 2 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 6 since 2021:** Violations and penalties 64 violation rows across the full record; 15 carry an S&S flag and $8,774 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 8K employee hours and 15 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 — 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 — 13 since 2021:** Inspections 71 inspection events and 1K 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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.14132 — 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 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 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.13011 — Air receiver tanks.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13011
- **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 56.12020 — Protection of persons at switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12020
- **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 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.14201 — Conveyor start-up warnings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14201

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2008-07-02 through 2014-05-27; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-05-04 through 2012-05-04; source ID `msha-addresses`
- **Assessed Violations:** 63 rows; 2000-01-19 through 2025-04-29; source ID `msha-assessed-violations`
- **Conferences:** 4 rows; 2000-09-12 through 2013-05-30; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 564 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 90 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:** 71 rows; 2000-01-19 through 2026-08-31; 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; 2002-01-23 through 2026-09-03; source ID `msha-personal-health-samples`
- **Violations:** 64 rows; 2000-01-19 through 2025-04-29; 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/tri-cities-airport-quarry-4001657`
- JSON: `/api/v1/mines/tri-cities-airport-quarry-4001657`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4001657/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4001657/relationships`
- MCP resource: `mine://4001657/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`