# Ashland Quarry

- **MSHA mine ID:** 1900001
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Middlesex, MA
- **Operator:** Aggregate Industries Northeast Region Inc
- **Controller:** Amrize Ltd
- **Public source rows linked:** 413
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Amrize Ltd (0193740) → Aggregate Industries Northeast Region Inc (L17298) → Ashland Quarry (1900001)**

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

## Controller and operator valid-time history

- **Guyott Company → Trimount Bituminous Products Company:** 1950-01-01 through 1979-12-31; derived from co-tenure at mine 1900001; source `msha-controller-operator-history`.
- **S M Lorusso & Sons Inc → S M Lorusso & Sons Inc:** 1980-01-01 through 1985-04-17; derived from co-tenure at mine 1900001; source `msha-controller-operator-history`.
- **Guyott Company → Trimount Bituminous Products Company:** 1985-04-18 through 1988-05-03; derived from co-tenure at mine 1900001; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Aggregate Industries Northeast Region Inc:** 2001-06-01 through 2009-04-29; derived from co-tenure at mine 1900001; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries Northeast Region Inc:** 2009-04-30 through 2015-07-09; derived from co-tenure at mine 1900001; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries Northeast Region Inc:** 2015-07-10 through 2025-06-22; derived from co-tenure at mine 1900001; source `msha-controller-operator-history`.
- **Amrize Ltd → Aggregate Industries Northeast Region Inc:** 2025-06-23 through current/open; derived from co-tenure at mine 1900001; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 17
- 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 — 0 since 2021:** Accidents and injuries 9 historical accident/injury rows; 0 coded fatalities and 49 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 52 violation rows across the full record; 14 carry an S&S flag and $15,085 appears in current assessed amounts.
3. **HEALTH — 8 samples:** Occupational health samples 8 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 64 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 7 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 0 since 2021:** Inspections 23 inspection events and 356 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 56.14101 — 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 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 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12006
- **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 62.120 — Action level.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.120
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **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 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.4203 — Extinguisher recharging or replacement.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4203

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2000-07-12 through 2004-07-28; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-01-23 through 2012-01-23; source ID `msha-addresses`
- **Assessed Violations:** 52 rows; 2000-11-14 through 2009-06-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2009-06-08 through 2009-06-08; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 3 rows; 2007-06-13 through 2009-07-15; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2007-10-10 through 2007-10-10; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 77 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 22 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1950-01-01 through 1988-05-04; source ID `msha-controller-operator-history`
- **Inspections:** 23 rows; 2000-11-13 through 2011-02-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 129 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 25 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:** 8 rows; 2000-11-15 through 2007-10-11; source ID `msha-personal-health-samples`
- **Violations:** 52 rows; 2000-11-14 through 2009-06-29; 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/ashland-quarry-1900001`
- JSON: `/api/v1/mines/ashland-quarry-1900001`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1900001/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1900001/relationships`
- MCP resource: `mine://1900001/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`