# Romeo Quarry

- **MSHA mine ID:** 1100070
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Will, IL
- **Operator:** Heidelberg Materials Midwest Agg, Inc.
- **Controller:** Heidelberg Materials AG
- **Public source rows linked:** 2,676
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Heidelberg Materials AG (M00004) → Heidelberg Materials Midwest Agg, Inc. (L16286) → Romeo Quarry (1100070)**

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

## Controller and operator valid-time history

- **General Dynamics Corp → Hanson Material Service:** 1950-01-01 through 2006-06-15; derived from co-tenure at mine 1100070; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Material Service:** 2006-06-16 through 2007-08-22; derived from co-tenure at mine 1100070; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Hanson Material Service:** 2007-08-23 through 2021-01-31; derived from co-tenure at mine 1100070; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Heidelberg Materials Midwest Agg, Inc.:** 2021-02-01 through current/open; derived from co-tenure at mine 1100070; source `msha-controller-operator-history`.
- **Hanson PLC → Heidelberg Materials Midwest Agg, Inc.:** 2021-02-01 through 2007-08-22; derived from co-tenure at mine 1100070; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 11
- Interval anomalies: 1
- 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 — 5 since 2021:** Accidents and injuries 46 historical accident/injury rows; 0 coded fatalities and 1,079 lost days across the published record.
2. **COMPLIANCE — 95 since 2021:** Violations and penalties 327 violation rows across the full record; 41 carry an S&S flag and $84,487 appears in current assessed amounts.
3. **HEALTH — 69 samples:** Occupational health samples 67 personal; 2 area. 9 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 21K employee hours and 33 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 58 linked rows:** Contests, conferences and decisions 28 contested-violation rows, 28 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 8 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 — 30 since 2021:** Inspections 106 inspection events and 3K 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 56.9300 — 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 56.12004 — Electrical conductors.** (5 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **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 56.14101 — 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 56.12065 — Short circuit and lightning protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12065

## Source coverage

- **Accident, Injuries, and Illnesses:** 46 rows; 2000-03-15 through 2026-03-13; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1976-07-04 through 1976-07-04; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2008-07-08 through 2008-07-08; source ID `msha-area-samples`
- **Assessed Violations:** 327 rows; 2000-08-14 through 2026-03-04; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 28 rows; 2012-01-25 through 2019-05-24; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2006-08-30 through 2012-11-13; source ID `msha-conferences`
- **Contested Violations:** 28 rows; 2011-03-16 through 2018-10-30; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,127 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 210 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2021-02-01; source ID `msha-controller-operator-history`
- **Inspections:** 106 rows; 2000-01-12 through 2026-09-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 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:** 67 rows; 2001-12-12 through 2026-09-23; source ID `msha-personal-health-samples`
- **Violations:** 327 rows; 2000-08-14 through 2026-03-04; 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/romeo-quarry-1100070`
- JSON: `/api/v1/mines/romeo-quarry-1100070`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1100070/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1100070/relationships`
- MCP resource: `mine://1100070/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`