# Mid-Illinois Quarry

- **MSHA mine ID:** 1100098
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Clark, IL
- **Operator:** Mid-Illinois Quarry L.L.C.
- **Controller:** John  Tarble; Jerald  Tarble
- **Public source rows linked:** 2,009
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**John  Tarble; Jerald  Tarble (0152441) → Mid-Illinois Quarry L.L.C. (0123491) → Mid-Illinois Quarry (1100098)**

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

## Controller and operator valid-time history

- **Medusa Corp → Medusa Aggregates Company:** 1950-01-01 through 1978-12-31; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.
- **Crane Company → Medusa Aggregates Company:** 1979-01-01 through 1982-12-19; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.
- **Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Constr. Materials, L.P.:** 1982-12-20 through 2006-02-05; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.
- **Charles  Heuerman et al → Mid-Illinois Quarry-Div/Mid-Illinois Concrete:** 2006-02-06 through 2012-06-10; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.
- **Vulcan Materials Company → Vulcan Constr. Materials, L.P.:** 2007-11-16 through 2006-02-05; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.
- **Charles  Heuerman → Mid-Illinois Quarry L.L.C.:** 2012-06-11 through 2019-12-31; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.
- **Jerald  Tarble et al → Mid-Illinois Quarry L.L.C.:** 2020-01-01 through current/open; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.
- **John  Tarble et al → Mid-Illinois Quarry L.L.C.:** 2020-01-01 through current/open; derived from co-tenure at mine 1100098; source `msha-controller-operator-history`.

- History rows: 8
- Typed edges: 20
- 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 — 0 since 2021:** Accidents and injuries 8 historical accident/injury rows; 0 coded fatalities and 316 lost days across the published record.
2. **COMPLIANCE — 40 since 2021:** Violations and penalties 162 violation rows across the full record; 38 carry an S&S flag and $28,912 appears in current assessed amounts.
3. **HEALTH — 40 samples:** Occupational health samples 38 personal; 2 area. 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 5K employee hours and 9 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 13 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 5 civil-penalty docket/decision rows, and 6 conference records linked by issuance number.
6. **CONTRACTORS — 6 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 83 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 56.14100 — Safety defects; examination, correction and records.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.12039 — Protection of surplus trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12039
- **30 CFR 56.14132 — Horns and backup alarms.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **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 56.12008 — 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 56.9300 — 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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101

## Source coverage

- **Accident, Injuries, and Illnesses:** 8 rows; 2000-05-15 through 2013-08-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2011-12-13 through 2011-12-13; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2021-07-14 through 2021-07-14; source ID `msha-area-samples`
- **Assessed Violations:** 159 rows; 2000-05-25 through 2026-06-08; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2002-01-10 through 2021-09-24; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 6 rows; 2003-05-19 through 2005-12-02; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2018-12-18 through 2019-04-02; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 939 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 197 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 8 rows; 1950-01-01 through 2012-06-11; source ID `msha-controller-operator-history`
- **Inspections:** 83 rows; 2000-05-25 through 2026-09-24; 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:** 80 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:** 38 rows; 2004-07-13 through 2026-06-08; source ID `msha-personal-health-samples`
- **Violations:** 162 rows; 2000-05-25 through 2026-09-24; 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/mid-illinois-quarry-1100098`
- JSON: `/api/v1/mines/mid-illinois-quarry-1100098`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1100098/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1100098/relationships`
- MCP resource: `mine://1100098/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`