# IMI Corydon Stone & Asphalt Co.

- **MSHA mine ID:** 1200017
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Harrison, IN
- **Operator:** IMI Aggregates LLC
- **Controller:** Fred (Pete)  Irving
- **Public source rows linked:** 1,975
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Fred (Pete)  Irving (M00157) → IMI Aggregates LLC (0173313) → IMI Corydon Stone & Asphalt Co. (1200017)**

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

## Controller and operator valid-time history

- **Michael J Gohnmann  et al → Corydon Stone & Asphalt Co.:** 1950-01-01 through 2014-06-08; derived from co-tenure at mine 1200017; source `msha-controller-operator-history`.
- **Earl  Brinker et al → Irving Materials, Inc.:** 2014-06-09 through 2018-12-31; derived from co-tenure at mine 1200017; source `msha-controller-operator-history`.
- **Fred (Pete)  Irving → Irving Materials, Inc.:** 2014-06-09 through 2005-12-04; derived from co-tenure at mine 1200017; source `msha-controller-operator-history`.
- **John  Tiberi → Irving Materials, Inc.:** 2019-01-01 through 2020-09-07; derived from co-tenure at mine 1200017; source `msha-controller-operator-history`.
- **Fred (Pete)  Irving → IMI Aggregates LLC:** 2020-09-08 through current/open; derived from co-tenure at mine 1200017; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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 11 historical accident/injury rows; 0 coded fatalities and 23 lost days across the published record.
2. **COMPLIANCE — 9 since 2021:** Violations and penalties 134 violation rows across the full record; 31 carry an S&S flag and $15,298 appears in current assessed amounts.
3. **HEALTH — 53 samples:** Occupational health samples 51 personal; 2 area. 5 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 10K employee hours and 15 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 25 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 12 civil-penalty docket/decision rows, and 2 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 — 20 since 2021:** Inspections 85 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 56.12002 — Controls and switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 56.4203 — Extinguisher recharging or replacement.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4203
- **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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.4130 — Electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4130
- **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 56.14112 — 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 56.12030 — Correction of dangerous conditions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **30 CFR 56.16006 — Protection of gas cylinder valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16006

## Source coverage

- **Accident, Injuries, and Illnesses:** 11 rows; 2002-11-27 through 2019-08-05; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2015-07-15 through 2015-07-15; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2021-03-22 through 2021-03-22; source ID `msha-area-samples`
- **Assessed Violations:** 135 rows; 2000-09-27 through 2022-10-25; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 12 rows; 2001-06-13 through 2023-02-06; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2014-12-04 through 2016-08-16; source ID `msha-conferences`
- **Contested Violations:** 11 rows; 2011-12-28 through 2022-01-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 916 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 2020-09-08; source ID `msha-controller-operator-history`
- **Inspections:** 85 rows; 2000-01-06 through 2026-09-08; 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:** 51 rows; 2001-06-19 through 2025-08-21; source ID `msha-personal-health-samples`
- **Violations:** 134 rows; 2000-09-27 through 2022-10-25; 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/imi-corydon-stone-asphalt-co-1200017`
- JSON: `/api/v1/mines/imi-corydon-stone-asphalt-co-1200017`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1200017/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1200017/relationships`
- MCP resource: `mine://1200017/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`