# THOMAS QUARRY

- **MSHA mine ID:** 1100214
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Scott, IL
- **Operator:** Callender Construction Company Inc
- **Controller:** Callender Construction Company Inc, ESOP
- **Public source rows linked:** 1,450
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Callender Construction Company Inc, ESOP (0190001) → Callender Construction Company Inc (L01113) → THOMAS QUARRY (1100214)**

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

## Controller and operator valid-time history

- **Bruce  Callender → Callender Construction Company Inc:** 1950-01-01 through 2023-01-01; derived from co-tenure at mine 1100214; source `msha-controller-operator-history`.
- **Terry  McEuen et al → Callender Construction Company Inc:** 2023-01-02 through 2025-01-02; derived from co-tenure at mine 1100214; source `msha-controller-operator-history`.
- **William Oscar Turnbull et al → Callender Construction Company Inc:** 2023-01-02 through 2025-01-02; derived from co-tenure at mine 1100214; source `msha-controller-operator-history`.
- **Callender Construction Company Inc, ESOP → Callender Construction Company Inc:** 2025-01-03 through current/open; derived from co-tenure at mine 1100214; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 8
- 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 7 historical accident/injury rows; 0 coded fatalities and 135 lost days across the published record.
2. **COMPLIANCE — 30 since 2021:** Violations and penalties 197 violation rows across the full record; 34 carry an S&S flag and $51,943 appears in current assessed amounts.
3. **HEALTH — 37 samples:** Occupational health samples 37 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 5K employee hours and 10 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 137 linked rows:** Contests, conferences and decisions 60 contested-violation rows, 61 civil-penalty docket/decision rows, and 16 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 — 19 since 2021:** Inspections 88 inspection events and 1K 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 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **30 CFR 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **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 56.14100 — 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 56.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3200
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **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 56.12032 — 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 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44

## Source coverage

- **Accident, Injuries, and Illnesses:** 7 rows; 2000-07-10 through 2013-07-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1995-11-17 through 1995-11-17; source ID `msha-addresses`
- **Assessed Violations:** 197 rows; 2000-04-04 through 2026-04-30; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 61 rows; 2010-05-21 through 2026-09-03; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 16 rows; 2014-08-14 through 2025-09-16; source ID `msha-conferences`
- **Contested Violations:** 60 rows; 2009-04-14 through 2026-04-30; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 313 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 73 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 88 rows; 2000-04-04 through 2026-09-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 314 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:** 37 rows; 2004-08-18 through 2026-09-29; source ID `msha-personal-health-samples`
- **Violations:** 197 rows; 2000-04-04 through 2026-04-30; 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/thomas-quarry-1100214`
- JSON: `/api/v1/mines/thomas-quarry-1100214`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1100214/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1100214/relationships`
- MCP resource: `mine://1100214/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`