# NB #1

- **MSHA mine ID:** 2002928
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Kalamazoo, MI
- **Operator:** Bill Smith S&G
- **Controller:** Amrize Ltd
- **Public source rows linked:** 305
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Amrize Ltd (0193740) → Bill Smith S&G (L00240) → NB #1 (2002928)**

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

## Controller and operator valid-time history

- **Bill W  Smith → Bill Smith Sand & Gravel Inc:** 1994-05-01 through 1999-01-21; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Aggregate Industries Northeast Regi:** 2001-06-01 through 2004-12-06; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Bill Smith Sand & Gravel:** 2004-12-07 through 2009-04-29; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries Northeast Regi:** 2009-04-30 through 2004-12-06; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Holcim Ltd → Bill Smith Sand & Gravel:** 2009-04-30 through 2011-07-11; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Meyer Material Acquisition Corp Et Al → Bill Smith S&G:** 2011-07-12 through 2011-07-11; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Aggregate Industries PLC → Bill Smith S&G:** 2011-07-12 through 2015-07-09; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Holcim Ltd → Aggregate Industries Northeast Regi:** 2015-07-10 through 2004-12-06; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Holcim Ltd → Bill Smith S&G:** 2015-07-10 through 2025-06-22; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Amrize Ltd → Aggregate Industries Northeast Regi:** 2025-06-23 through 2004-12-06; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.
- **Amrize Ltd → Bill Smith S&G:** 2025-06-23 through current/open; derived from co-tenure at mine 2002928; source `msha-controller-operator-history`.

- History rows: 11
- Typed edges: 24
- Interval anomalies: 4
- 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 2 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 47 violation rows across the full record; 6 carry an S&S flag and $3,996 appears in current assessed amounts.
3. **HEALTH — 12 samples:** Occupational health samples 12 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 31 inspection events and 351 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 56.1000 — Notification of commencement of operations and closing of mines.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000
- **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 56.14100 — 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 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.14132 — Horns and backup alarms.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.14200 — Warnings prior to starting or moving equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14200

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2004-02-12 through 2004-12-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-05-21 through 2019-05-21; source ID `msha-addresses`
- **Assessed Violations:** 46 rows; 2001-04-04 through 2019-05-06; source ID `msha-assessed-violations`
- **Controller and Operator History:** 11 rows; 1994-05-01 through 2011-07-12; source ID `msha-controller-operator-history`
- **Inspections:** 31 rows; 2001-04-04 through 2019-05-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 132 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 22 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:** 12 rows; 2001-04-10 through 2012-03-20; source ID `msha-personal-health-samples`
- **Violations:** 47 rows; 2001-04-04 through 2019-05-06; 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/nb-1-2002928`
- JSON: `/api/v1/mines/nb-1-2002928`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2002928/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2002928/relationships`
- MCP resource: `mine://2002928/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`