# Chelmsford Quarry

- **MSHA mine ID:** 1900008
- **Status:** Active
- **Type / commodity:** Surface / Dimension Stone NEC
- **Location:** Middlesex, MA
- **Operator:** Georgia Stone Management LLC
- **Controller:** Donald  Conte
- **Public source rows linked:** 1,211
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Donald  Conte (0187481) → Georgia Stone Management LLC (0198133) → Chelmsford Quarry (1900008)**

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

## Controller and operator valid-time history

- **Herbert E  Fletcher → H E Fletcher Company:** 1950-01-01 through 1985-11-26; derived from co-tenure at mine 1900008; source `msha-controller-operator-history`.
- **Paul A  Keany → Fletcher Granite Company Inc:** 1985-11-27 through 1989-01-02; derived from co-tenure at mine 1900008; source `msha-controller-operator-history`.
- **Pioneer International Ltd → Fletcher Granite Company Inc:** 1989-01-03 through 1999-04-01; derived from co-tenure at mine 1900008; source `msha-controller-operator-history`.
- **V B  Castellani  et al → Fletcher Granite Co LLC:** 1999-04-02 through 2010-11-15; derived from co-tenure at mine 1900008; source `msha-controller-operator-history`.
- **Kathleen  Herbert et al → Fletcher Granite Co LLC:** 1999-04-02 through 2010-11-15; derived from co-tenure at mine 1900008; source `msha-controller-operator-history`.
- **Antonio C  Ramos → Georgia Stone Industries, Inc.:** 2010-11-16 through 2025-01-04; derived from co-tenure at mine 1900008; source `msha-controller-operator-history`.
- **Donald  Conte → Georgia Stone Management LLC:** 2025-01-05 through current/open; derived from co-tenure at mine 1900008; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 19
- 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 — 1 since 2021:** Accidents and injuries 66 historical accident/injury rows; 0 coded fatalities and 1,253 lost days across the published record.
2. **COMPLIANCE — 22 since 2021:** Violations and penalties 345 violation rows across the full record; 86 carry an S&S flag and $175,130 appears in current assessed amounts.
3. **HEALTH — 64 samples:** Occupational health samples 64 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 16K employee hours and 27 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 82 linked rows:** Contests, conferences and decisions 38 contested-violation rows, 38 civil-penalty docket/decision rows, and 6 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 9 since 2021:** Inspections 90 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 56.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12019
- **30 CFR 45.4 — Independent contractor register.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-45/section-45.4
- **30 CFR 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 56.11002 — 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 46.6 — Newly hired experienced miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.6
- **30 CFR 56.15005 — Safety belts and lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005

## Source coverage

- **Accident, Injuries, and Illnesses:** 66 rows; 2000-01-04 through 2022-08-18; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-07-15 through 2026-07-15; source ID `msha-addresses`
- **Assessed Violations:** 342 rows; 2000-03-14 through 2026-07-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 38 rows; 2014-09-29 through 2023-10-20; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 6 rows; 2003-10-30 through 2017-10-06; source ID `msha-conferences`
- **Contested Violations:** 38 rows; 2014-05-27 through 2022-08-23; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 100 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 27 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1950-01-01 through 2025-01-05; source ID `msha-controller-operator-history`
- **Inspections:** 90 rows; 2000-03-14 through 2026-07-15; 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:** 62 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:** 64 rows; 2001-04-05 through 2022-09-14; source ID `msha-personal-health-samples`
- **Violations:** 345 rows; 2000-03-14 through 2026-07-15; 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/chelmsford-quarry-1900008`
- JSON: `/api/v1/mines/chelmsford-quarry-1900008`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1900008/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1900008/relationships`
- MCP resource: `mine://1900008/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`