# Plant #65

- **MSHA mine ID:** 2301922
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Andrew, MO
- **Operator:** Martin Marietta Materials, Inc.
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 1,632
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Martin Marietta Materials, Inc. (L16197) → Plant #65 (2301922)**

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

## Controller and operator valid-time history

- **Martin Marietta Materials Inc → Martin Marietta Aggregates:** 1985-07-01 through 2003-09-14; derived from co-tenure at mine 2301922; source `msha-controller-operator-history`.
- **Brady D  Meldrem → Norris Asphalt Paving Company:** 2003-09-15 through 2012-02-28; derived from co-tenure at mine 2301922; source `msha-controller-operator-history`.
- **Summit Materials LLC → Norris Quarries, LLC:** 2012-02-29 through 2016-05-19; derived from co-tenure at mine 2301922; source `msha-controller-operator-history`.
- **Con-Agg Llc → Con-Agg Companies, LLC:** 2016-05-20 through 2010-09-14; derived from co-tenure at mine 2301922; source `msha-controller-operator-history`.
- **Summit Materials LLC → Con-Agg Companies, LLC:** 2016-05-20 through 2026-03-23; derived from co-tenure at mine 2301922; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Martin Marietta Materials, Inc.:** 2026-03-24 through current/open; derived from co-tenure at mine 2301922; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 16
- Interval anomalies: 1
- 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 9 historical accident/injury rows; 0 coded fatalities and 9 lost days across the published record.
2. **COMPLIANCE — 35 since 2021:** Violations and penalties 137 violation rows across the full record; 31 carry an S&S flag and $31,427 appears in current assessed amounts.
3. **HEALTH — 97 samples:** Occupational health samples 97 personal. 11 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 21K employee hours and 38 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 9 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 — 22 since 2021:** Inspections 98 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 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **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 56.4102 — Spillage and leakage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4102
- **30 CFR 56.20010 — Retaining dams.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20010
- **30 CFR 56.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3200
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2000-03-24 through 2016-11-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1995-04-07 through 1995-04-07; source ID `msha-addresses`
- **Assessed Violations:** 136 rows; 2002-04-03 through 2026-05-20; source ID `msha-assessed-violations`
- **Conferences:** 9 rows; 2002-12-18 through 2023-08-08; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 599 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 140 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1985-07-01 through 2026-03-24; source ID `msha-controller-operator-history`
- **Inspections:** 98 rows; 2001-04-30 through 2026-05-19; 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:** 97 rows; 2002-12-04 through 2026-05-27; source ID `msha-personal-health-samples`
- **Violations:** 137 rows; 2002-04-03 through 2026-05-20; 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/plant-65-2301922`
- JSON: `/api/v1/mines/plant-65-2301922`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2301922/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2301922/relationships`
- MCP resource: `mine://2301922/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`