# COY STONE PLANT ADDITION

- **MSHA mine ID:** 4002465
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Jefferson, TN
- **Operator:** Martin Marietta Southeast Agg Operations, LLC
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 562
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Southeast Agg Operations, LLC (0200133) → COY STONE PLANT ADDITION (4002465)**

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:** 1978-03-09 through 1999-11-16; derived from co-tenure at mine 4002465; 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 4002465; 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 4002465; 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 4002465; 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 4002465; 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 4002465; 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 4002465; 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 4002465; 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 4002465; 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 4002465; 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 38 lost days across the published record.
2. **COMPLIANCE — 4 since 2021:** Violations and penalties 16 violation rows across the full record; 2 carry an S&S flag and $1,610 appears in current assessed amounts.
3. **HEALTH — 8 samples:** Occupational health samples 8 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 4K employee hours and 6 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 18 since 2021:** Inspections 65 inspection events and 604 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 56.12001 — Circuit overload protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12001
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.18002 — 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 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 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 50.20-1 — General instructions for completing MSHA Form 7000-1.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-1
- **30 CFR 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **30 CFR 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 56.14115 — Stationary grinding machines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14115

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2004-08-09 through 2004-08-09; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-11-23 through 2012-11-23; source ID `msha-addresses`
- **Assessed Violations:** 16 rows; 2000-04-10 through 2026-01-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2022-10-12 through 2022-10-12; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2005-04-25 through 2026-03-04; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2022-02-16 through 2022-02-16; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 296 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 70 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 10 rows; 1978-03-09 through 2024-12-12; source ID `msha-controller-operator-history`
- **Inspections:** 65 rows; 2000-04-10 through 2026-04-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 50 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:** 8 rows; 2002-11-14 through 2023-09-07; source ID `msha-personal-health-samples`
- **Violations:** 16 rows; 2000-04-10 through 2026-01-14; 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/coy-stone-plant-addition-4002465`
- JSON: `/api/v1/mines/coy-stone-plant-addition-4002465`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4002465/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4002465/relationships`
- MCP resource: `mine://4002465/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`