# Speed Cement Plant

- **MSHA mine ID:** 1200066
- **Status:** Abandoned
- **Type / commodity:** Facility / Cement
- **Location:** Clark, IN
- **Operator:** Heidelberg Materials US Cement LLC
- **Controller:** Heidelberg Materials AG
- **Public source rows linked:** 8,406
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Heidelberg Materials AG (M00004) → Heidelberg Materials US Cement LLC (L17551) → Speed Cement Plant (1200066)**

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

## Controller and operator valid-time history

- **Louisville Cement Company → Louisville Cement Company:** 1950-01-01 through 1986-08-28; derived from co-tenure at mine 1200066; source `msha-controller-operator-history`.
- **Italcementi Spa → Essroc Cement Corp:** 1986-08-29 through 2016-10-11; derived from co-tenure at mine 1200066; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Essroc Cement Corp:** 2016-10-12 through 2017-04-30; derived from co-tenure at mine 1200066; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Heidelberg Materials US Cement LLC:** 2017-05-01 through current/open; derived from co-tenure at mine 1200066; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- 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 — 7 since 2021:** Accidents and injuries 318 historical accident/injury rows; 1 coded fatalities and 2,176 lost days across the published record.
2. **COMPLIANCE — 137 since 2021:** Violations and penalties 1,454 violation rows across the full record; 449 carry an S&S flag and $1,015,005 appears in current assessed amounts.
3. **HEALTH — 275 samples:** Occupational health samples 275 personal. 32 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 17K employee hours and 32 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 483 linked rows:** Contests, conferences and decisions 231 contested-violation rows, 234 civil-penalty docket/decision rows, and 18 conference records linked by issuance number.
6. **CONTRACTORS — 32 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 — 12 since 2021:** Inspections 163 inspection events and 8K 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 56.5001 — Exposure limits for airborne contaminants.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001
- **30 CFR 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.16003 — Storage of hazardous materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16003
- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207

## Source coverage

- **Accident, Injuries, and Illnesses:** 318 rows; 2000-01-03 through 2022-07-09; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2023-09-06 through 2023-09-06; source ID `msha-addresses`
- **Assessed Violations:** 1,449 rows; 2000-03-14 through 2023-08-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 234 rows; 2004-06-01 through 2023-12-07; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 18 rows; 2004-02-11 through 2013-08-29; source ID `msha-conferences`
- **Contested Violations:** 231 rows; 2005-04-04 through 2023-06-13; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 3,241 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 666 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2017-05-01; source ID `msha-controller-operator-history`
- **Inspections:** 163 rows; 2000-03-14 through 2023-06-26; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 285 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 66 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:** 275 rows; 2001-01-17 through 2023-08-22; source ID `msha-personal-health-samples`
- **Violations:** 1,454 rows; 2000-03-14 through 2023-08-31; 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/speed-cement-plant-1200066`
- JSON: `/api/v1/mines/speed-cement-plant-1200066`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1200066/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1200066/relationships`
- MCP resource: `mine://1200066/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`