# Anderson Mine and Mill

- **MSHA mine ID:** 4000022
- **Status:** Active
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Franklin, TN
- **Operator:** Martin Marietta Materials, Inc
- **Controller:** Lhoist Group
- **Public source rows linked:** 5,659
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Lhoist Group (0041044) → Martin Marietta Materials, Inc (L12380) → Anderson Mine and Mill (4000022)**

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

## Controller and operator valid-time history

- **Cowan Stone Company → Cowan Stone Company:** 1950-01-01 through 1988-10-31; derived from co-tenure at mine 4000022; source `msha-controller-operator-history`.
- **Franklin Industries Inc → Lhoist North America Of Tennessee, LLC:** 1988-11-01 through 2006-11-30; derived from co-tenure at mine 4000022; source `msha-controller-operator-history`.
- **Lhoist Group → Lhoist North America Of Tennessee, LLC:** 2006-12-01 through current/open; derived from co-tenure at mine 4000022; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- 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 — 9 since 2021:** Accidents and injuries 28 historical accident/injury rows; 1 coded fatalities and 601 lost days across the published record.
2. **COMPLIANCE — 76 since 2021:** Violations and penalties 911 violation rows across the full record; 261 carry an S&S flag and $716,744 appears in current assessed amounts.
3. **HEALTH — 377 samples:** Occupational health samples 352 personal; 25 area. 20 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 29K employee hours and 54 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 416 linked rows:** Contests, conferences and decisions 172 contested-violation rows, 167 civil-penalty docket/decision rows, and 77 conference records linked by issuance number.
6. **CONTRACTORS — 22 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 — 38 since 2021:** Inspections 207 inspection events and 9K 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 57.11053 — Escape and evacuation plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11053
- **30 CFR 57.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20003
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 57.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20011
- **30 CFR 57.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12028
- **30 CFR 57.6306 — Loading, blasting, and security.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-E/section-57.6306
- **30 CFR 57.6311 — Handling of misfires.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-E/section-57.6311
- **30 CFR 57.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12032
- **30 CFR 57.11051 — Escape routes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11051
- **30 CFR 57.11058 — Check-in, check-out system.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11058
- **30 CFR 57.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107

## Source coverage

- **Accident, Injuries, and Illnesses:** 28 rows; 2001-12-05 through 2026-05-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1978-08-16 through 1978-08-16; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 25 rows; 2009-04-27 through 2026-02-10; source ID `msha-area-samples`
- **Assessed Violations:** 892 rows; 2000-02-10 through 2026-04-07; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 167 rows; 2007-05-29 through 2022-02-02; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 77 rows; 2000-02-08 through 2025-03-19; source ID `msha-conferences`
- **Contested Violations:** 172 rows; 2006-06-05 through 2021-08-10; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,881 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 411 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 1988-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 207 rows; 2000-02-08 through 2026-10-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 423 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 108 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:** 352 rows; 2001-04-25 through 2026-05-20; source ID `msha-personal-health-samples`
- **Violations:** 911 rows; 2000-02-10 through 2026-09-22; 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/anderson-mine-and-mill-4000022`
- JSON: `/api/v1/mines/anderson-mine-and-mill-4000022`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4000022/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4000022/relationships`
- MCP resource: `mine://4000022/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`