# West Roxbury Crushed Stone

- **MSHA mine ID:** 1900076
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Suffolk, MA
- **Operator:** S M Lorusso & Sons Inc
- **Controller:** S M Lorusso & Sons Inc
- **Public source rows linked:** 1,847
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**S M Lorusso & Sons Inc (M00095) → S M Lorusso & Sons Inc (L00138) → West Roxbury Crushed Stone (1900076)**

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

## Controller and operator valid-time history

- **Browning-Ferris Industries Inc → West Roxbury Crushed Stone Company:** 1950-01-01 through 1978-12-28; derived from co-tenure at mine 1900076; source `msha-controller-operator-history`.
- **S M Lorusso & Sons Inc → S M Lorusso & Sons Inc:** 1978-12-29 through current/open; derived from co-tenure at mine 1900076; 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 — 12 since 2021:** Accidents and injuries 41 historical accident/injury rows; 0 coded fatalities and 396 lost days across the published record.
2. **COMPLIANCE — 47 since 2021:** Violations and penalties 224 violation rows across the full record; 58 carry an S&S flag and $64,229 appears in current assessed amounts.
3. **HEALTH — 26 samples:** Occupational health samples 26 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 11K employee hours and 15 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 78 linked rows:** Contests, conferences and decisions 39 contested-violation rows, 39 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 6 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 — 16 since 2021:** Inspections 75 inspection events and 1K 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 56.14107 — 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 56.9300 — Berms or guardrails.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **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 56.14103 — Operators stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005

## Source coverage

- **Accident, Injuries, and Illnesses:** 41 rows; 2004-05-17 through 2026-09-14; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1997-02-05 through 1997-02-05; source ID `msha-addresses`
- **Assessed Violations:** 222 rows; 2001-04-03 through 2026-08-07; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 39 rows; 2011-11-08 through 2024-11-13; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 39 rows; 2010-03-31 through 2024-04-22; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 709 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 156 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1978-12-29; source ID `msha-controller-operator-history`
- **Inspections:** 75 rows; 2001-04-03 through 2026-08-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 258 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 26 rows; 2002-05-01 through 2024-04-23; source ID `msha-personal-health-samples`
- **Violations:** 224 rows; 2001-04-03 through 2026-08-07; 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/west-roxbury-crushed-stone-1900076`
- JSON: `/api/v1/mines/west-roxbury-crushed-stone-1900076`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1900076/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1900076/relationships`
- MCP resource: `mine://1900076/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`