# Lorusso-Bristol Stone Corporation

- **MSHA mine ID:** 1900553
- **Status:** Active
- **Type / commodity:** Surface / Dimension Stone NEC
- **Location:** Norfolk, MA
- **Operator:** Lorusso-Bristol Stone Corporation
- **Controller:** S M Lorusso & Sons Inc
- **Public source rows linked:** 844
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**S M Lorusso & Sons Inc (M00095) → Lorusso-Bristol Stone Corporation (L04259) → Lorusso-Bristol Stone Corporation (1900553)**

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

## Controller and operator valid-time history

- **Sylvester A  Ray → Marshfield Sand & Gravel Inc:** 1950-01-01 through 1980-06-12; derived from co-tenure at mine 1900553; source `msha-controller-operator-history`.
- **S M Lorusso & Sons Inc → Lorusso-Bristol Stone Corporation:** 1980-06-13 through current/open; derived from co-tenure at mine 1900553; 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 9 since 2021:** Accidents and injuries 43 historical accident/injury rows; 0 coded fatalities and 1,693 lost days across the published record.
2. **COMPLIANCE — 43 since 2021:** Violations and penalties 138 violation rows across the full record; 20 carry an S&S flag and $23,816 appears in current assessed amounts.
3. **HEALTH — 48 samples:** Occupational health samples 48 personal. 1 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 22 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 2 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 — 13 since 2021:** Inspections 52 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 56.14112 — 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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **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 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 56.4603 — Closure of valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4603
- **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 56.20003 — 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 56.14100 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 43 rows; 2000-02-15 through 2026-06-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2009-03-12 through 2009-03-12; source ID `msha-addresses`
- **Assessed Violations:** 138 rows; 2001-08-20 through 2026-07-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2017-11-21 through 2017-11-21; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2015-10-07 through 2017-08-09; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2017-07-18 through 2017-07-18; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 270 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 69 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1980-06-13; source ID `msha-controller-operator-history`
- **Inspections:** 52 rows; 2000-07-29 through 2026-07-21; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 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:** 48 rows; 2005-07-20 through 2024-08-20; source ID `msha-personal-health-samples`
- **Violations:** 138 rows; 2001-08-20 through 2026-07-22; 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/lorusso-bristol-stone-corporation-1900553`
- JSON: `/api/v1/mines/lorusso-bristol-stone-corporation-1900553`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1900553/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1900553/relationships`
- MCP resource: `mine://1900553/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`