# Sugar Creek Ug Mine

- **MSHA mine ID:** 2302171
- **Status:** Active
- **Type / commodity:** Underground / Cement
- **Location:** Jackson, MO
- **Operator:** Central Plains Cement Co
- **Controller:** Eagle Materials Inc
- **Public source rows linked:** 11,606
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Eagle Materials Inc (M00946) → Central Plains Cement Co (0125896) → Sugar Creek Ug Mine (2302171)**

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

## Controller and operator valid-time history

- **Lafarge S A → Lafarge Corp:** 1998-06-01 through 2002-09-04; derived from co-tenure at mine 2302171; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge North America:** 2002-09-05 through 2012-11-30; derived from co-tenure at mine 2302171; source `msha-controller-operator-history`.
- **Eagle Materials Inc → Central Plains Cement Co:** 2012-12-01 through current/open; derived from co-tenure at mine 2302171; source `msha-controller-operator-history`.
- **Holcim Ltd → Lafarge North America:** 2015-07-10 through 2012-11-30; derived from co-tenure at mine 2302171; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 15 since 2021:** Accidents and injuries 114 historical accident/injury rows; 1 coded fatalities and 1,816 lost days across the published record.
2. **COMPLIANCE — 637 since 2021:** Violations and penalties 1,716 violation rows across the full record; 427 carry an S&S flag and $959,911 appears in current assessed amounts.
3. **HEALTH — 542 samples:** Occupational health samples 507 personal; 35 area. 53 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 25 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 859 linked rows:** Contests, conferences and decisions 268 contested-violation rows, 414 civil-penalty docket/decision rows, and 177 conference records linked by issuance number.
6. **CONTRACTORS — 48 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 — 54 since 2021:** Inspections 258 inspection events and 12K 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 62.130 — Permissible exposure level.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.130
- **30 CFR 57.4102 — Spillage and leakage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4102
- **30 CFR 57.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12028
- **30 CFR 57.14207 — Parking procedures for unattended equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14207
- **30 CFR 49.7 — Physical requirements for mine rescue team.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-49/subpart-A/section-49.7
- **30 CFR 57.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4200
- **30 CFR 57.4500 — Heat sources.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4500
- **30 CFR 57.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12032
- **30 CFR 57.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20003
- **30 CFR 57.14206 — Securing movable parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14206
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100

## Source coverage

- **Accident, Injuries, and Illnesses:** 114 rows; 2000-01-25 through 2026-07-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-10-01 through 2013-10-01; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 35 rows; 2014-08-20 through 2026-07-14; source ID `msha-area-samples`
- **Assessed Violations:** 1,696 rows; 2000-01-15 through 2026-07-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 414 rows; 2000-11-20 through 2026-06-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 177 rows; 2000-04-03 through 2022-11-08; source ID `msha-conferences`
- **Contested Violations:** 268 rows; 2008-11-18 through 2026-07-13; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 5,297 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 993 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1998-06-01 through 2012-12-01; source ID `msha-controller-operator-history`
- **Inspections:** 258 rows; 2000-01-14 through 2026-08-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 33 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 92 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:** 507 rows; 2000-09-27 through 2026-07-14; source ID `msha-personal-health-samples`
- **Violations:** 1,716 rows; 2000-01-15 through 2026-07-14; 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/sugar-creek-ug-mine-2302171`
- JSON: `/api/v1/mines/sugar-creek-ug-mine-2302171`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2302171/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2302171/relationships`
- MCP resource: `mine://2302171/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`