# S W Barrick & Sons

- **MSHA mine ID:** 1800008
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Frederick, MD
- **Operator:** S W Barrick & Sons
- **Controller:** Aggregate Management, Inc
- **Public source rows linked:** 3,428
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Aggregate Management, Inc (M10193) → S W Barrick & Sons (L12613) → S W Barrick & Sons (1800008)**

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

## Controller and operator valid-time history

- **Samuel W  Barrick → S W Barrick & Sons Inc:** 1950-01-01 through 1990-06-09; derived from co-tenure at mine 1800008; source `msha-controller-operator-history`.
- **Aggregate Management, Inc → S W Barrick & Sons:** 1990-06-10 through current/open; derived from co-tenure at mine 1800008; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 — 8 since 2021:** Accidents and injuries 53 historical accident/injury rows; 1 coded fatalities and 350 lost days across the published record.
2. **COMPLIANCE — 27 since 2021:** Violations and penalties 203 violation rows across the full record; 49 carry an S&S flag and $127,339 appears in current assessed amounts.
3. **HEALTH — 122 samples:** Occupational health samples 122 personal. 4 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 41K employee hours and 65 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 125 linked rows:** Contests, conferences and decisions 58 contested-violation rows, 58 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.
6. **CONTRACTORS — 16 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 — 17 since 2021:** Inspections 83 inspection events and 3K 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 56.23003 — Requirements for written safety program.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-T/section-56.23003
- **30 CFR 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.14132 — 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 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.7002 — Equipment defects.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-F/section-56.7002
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101

## Source coverage

- **Accident, Injuries, and Illnesses:** 53 rows; 2000-08-03 through 2025-01-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1976-03-08 through 1976-03-08; source ID `msha-addresses`
- **Assessed Violations:** 194 rows; 2000-02-23 through 2025-09-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 58 rows; 2000-08-21 through 2018-09-13; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 9 rows; 2008-05-01 through 2020-04-07; source ID `msha-conferences`
- **Contested Violations:** 58 rows; 2007-06-04 through 2018-03-27; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,849 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 396 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1990-06-10; source ID `msha-controller-operator-history`
- **Inspections:** 83 rows; 2000-02-23 through 2026-09-21; 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:** 122 rows; 2002-06-19 through 2025-12-03; source ID `msha-personal-health-samples`
- **Violations:** 203 rows; 2000-02-23 through 2026-09-02; 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/s-w-barrick-sons-1800008`
- JSON: `/api/v1/mines/s-w-barrick-sons-1800008`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1800008/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1800008/relationships`
- MCP resource: `mine://1800008/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`