# SAWYER

- **MSHA mine ID:** 3401634
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Choctaw, OK
- **Operator:** Meridian Aggregates Company, a Limited Partnership
- **Controller:** Martin Marietta Materials Inc
- **Public source rows linked:** 5,173
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Martin Marietta Materials Inc (M00174) → Meridian Aggregates Company, a Limited Partnership (L18213) → SAWYER (3401634)**

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

## Controller and operator valid-time history

- **Wallace T  Langston → Oklahoma Stone Inc:** 1988-02-01 through 1991-02-13; derived from co-tenure at mine 3401634; source `msha-controller-operator-history`.
- **American Rock Products Inc → Amrock Inc:** 1991-02-14 through 1992-12-22; derived from co-tenure at mine 3401634; source `msha-controller-operator-history`.
- **William  Boorhem  et al → Boorhem-Fields Inc:** 1992-12-23 through 1993-03-14; derived from co-tenure at mine 3401634; source `msha-controller-operator-history`.
- **Meridian Aggregates Company LP → Meridian Aggregates Company:** 1993-03-15 through 2001-04-02; derived from co-tenure at mine 3401634; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Meridian Aggregates Company, a Limited Partnership:** 2001-04-03 through current/open; derived from co-tenure at mine 3401634; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 15
- 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 — 3 since 2021:** Accidents and injuries 33 historical accident/injury rows; 0 coded fatalities and 534 lost days across the published record.
2. **COMPLIANCE — 24 since 2021:** Violations and penalties 244 violation rows across the full record; 70 carry an S&S flag and $39,219 appears in current assessed amounts.
3. **HEALTH — 78 samples:** Occupational health samples 78 personal. 10 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 16K employee hours and 24 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 42 linked rows:** Contests, conferences and decisions 9 contested-violation rows, 10 civil-penalty docket/decision rows, and 23 conference records linked by issuance number.
6. **CONTRACTORS — 21 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 — 14 since 2021:** Inspections 79 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 56.20003 — 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 56.3131 — Pit or quarry wall perimeter.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3131
- **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 56.12008 — 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 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 56.4201 — 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 56.12023 — Guarding electrical connections and resistor grids.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12023
- **30 CFR 56.14211 — Blocking equipment in a raised position.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14211
- **30 CFR 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205

## Source coverage

- **Accident, Injuries, and Illnesses:** 33 rows; 2001-03-14 through 2026-08-05; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1993-01-19 through 1993-01-19; source ID `msha-addresses`
- **Assessed Violations:** 243 rows; 2000-05-18 through 2026-06-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 10 rows; 2002-03-12 through 2022-10-13; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 23 rows; 2000-06-30 through 2019-10-04; source ID `msha-conferences`
- **Contested Violations:** 9 rows; 2009-01-06 through 2022-03-01; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 3,261 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 787 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1988-02-01 through 2001-04-03; source ID `msha-controller-operator-history`
- **Inspections:** 79 rows; 2000-05-18 through 2026-06-02; 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:** 78 rows; 2001-07-27 through 2026-03-24; source ID `msha-personal-health-samples`
- **Violations:** 244 rows; 2000-05-18 through 2026-06-03; 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/sawyer-3401634`
- JSON: `/api/v1/mines/sawyer-3401634`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3401634/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3401634/relationships`
- MCP resource: `mine://3401634/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`