# Bloomington Quarry

- **MSHA mine ID:** 1200010
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Monroe, IN
- **Operator:** Rogers Group Inc
- **Controller:** Rogers Group Inc
- **Public source rows linked:** 3,235
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Rogers Group Inc (M00452) → Rogers Group Inc (L06514) → Bloomington Quarry (1200010)**

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

## Controller and operator valid-time history

- **Rogers Group Inc → Rogers Group Inc:** 1950-01-01 through current/open; derived from co-tenure at mine 1200010; 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 — 0 since 2021:** Accidents and injuries 23 historical accident/injury rows; 0 coded fatalities and 283 lost days across the published record.
2. **COMPLIANCE — 12 since 2021:** Violations and penalties 249 violation rows across the full record; 62 carry an S&S flag and $72,848 appears in current assessed amounts.
3. **HEALTH — 43 samples:** Occupational health samples 43 personal. 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 15K employee hours and 42 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 19 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 6 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 9 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 — 4 since 2021:** Inspections 76 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 56.20003 — Housekeeping.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.14100 — 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 56.14107 — Moving machine parts.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002

## Source coverage

- **Accident, Injuries, and Illnesses:** 23 rows; 2001-09-19 through 2018-09-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-03-07 through 2022-03-07; source ID `msha-addresses`
- **Assessed Violations:** 248 rows; 2001-02-16 through 2021-12-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2010-08-18 through 2017-02-15; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2002-09-23 through 2020-02-28; source ID `msha-conferences`
- **Contested Violations:** 6 rows; 2009-05-05 through 2016-08-24; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,805 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 433 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:** 76 rows; 2000-12-18 through 2021-12-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 267 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 69 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:** 43 rows; 2000-12-20 through 2021-05-20; source ID `msha-personal-health-samples`
- **Violations:** 249 rows; 2001-02-16 through 2021-12-14; 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/bloomington-quarry-1200010`
- JSON: `/api/v1/mines/bloomington-quarry-1200010`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1200010/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1200010/relationships`
- MCP resource: `mine://1200010/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`