# LaSalle Quarry and Mill

- **MSHA mine ID:** 1100003
- **Status:** Active
- **Type / commodity:** Facility / Cement
- **Location:** La Salle, IL
- **Operator:** Illinois Cement Company
- **Controller:** Eagle Materials Inc
- **Public source rows linked:** 6,402
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Eagle Materials Inc (M03395) → Illinois Cement Company (L04218) → LaSalle Quarry and Mill (1100003)**

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

## Controller and operator valid-time history

- **Eagle Materials Inc → Illinois Cement Company:** 1950-01-01 through current/open; derived from co-tenure at mine 1100003; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 — 13 since 2021:** Accidents and injuries 157 historical accident/injury rows; 0 coded fatalities and 5,127 lost days across the published record.
2. **COMPLIANCE — 246 since 2021:** Violations and penalties 873 violation rows across the full record; 181 carry an S&S flag and $331,029 appears in current assessed amounts.
3. **HEALTH — 143 samples:** Occupational health samples 115 personal; 28 area. 10 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 99K employee hours and 153 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 47 linked rows:** Contests, conferences and decisions 20 contested-violation rows, 20 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 31 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 — 21 since 2021:** Inspections 142 inspection events and 5K 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 56.14100 — 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 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.4201 — Inspection.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 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 56.12004 — 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 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101

## Source coverage

- **Accident, Injuries, and Illnesses:** 157 rows; 2000-03-21 through 2026-09-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-03-06 through 2013-03-06; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 28 rows; 2009-07-29 through 2009-08-04; source ID `msha-area-samples`
- **Assessed Violations:** 869 rows; 2000-02-15 through 2026-06-05; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 20 rows; 2007-08-29 through 2015-05-27; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2003-05-07 through 2013-03-04; source ID `msha-conferences`
- **Contested Violations:** 20 rows; 2006-04-03 through 2014-03-31; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 3,087 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 683 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 142 rows; 2000-02-15 through 2026-06-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 317 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 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:** 115 rows; 2001-10-18 through 2026-06-09; source ID `msha-personal-health-samples`
- **Violations:** 873 rows; 2000-02-15 through 2026-06-05; 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/lasalle-quarry-and-mill-1100003`
- JSON: `/api/v1/mines/lasalle-quarry-and-mill-1100003`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1100003/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1100003/relationships`
- MCP resource: `mine://1100003/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`