# Demopolis Plant Cemex Inc

- **MSHA mine ID:** 0100016
- **Status:** Active
- **Type / commodity:** Facility / Cement
- **Location:** Marengo, AL
- **Operator:** CEMEX Southeast, LLC
- **Controller:** Cemex S A
- **Public source rows linked:** 8,608
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Cemex S A (M09149) → CEMEX Southeast, LLC (0118327) → Demopolis Plant Cemex Inc (0100016)**

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:** 1950-01-01 through 1993-01-31; derived from co-tenure at mine 0100016; source `msha-controller-operator-history`.
- **Medusa Corp → Medusa-Citadel Inc:** 1993-02-01 through 1998-06-29; derived from co-tenure at mine 0100016; source `msha-controller-operator-history`.
- **Southdown Inc → Southdown Inc:** 1998-06-30 through 2001-08-26; derived from co-tenure at mine 0100016; source `msha-controller-operator-history`.
- **Cemex S A → Cemex Inc:** 2001-08-27 through 2015-07-21; derived from co-tenure at mine 0100016; source `msha-controller-operator-history`.
- **Cemex S A → CEMEX Southeast, LLC:** 2015-07-22 through current/open; derived from co-tenure at mine 0100016; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 15
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 22 since 2021:** Accidents and injuries 136 historical accident/injury rows; 0 coded fatalities and 1,730 lost days across the published record.
2. **COMPLIANCE — 226 since 2021:** Violations and penalties 1,288 violation rows across the full record; 361 carry an S&S flag and $925,703 appears in current assessed amounts.
3. **HEALTH — 148 samples:** Occupational health samples 148 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 52K employee hours and 97 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 248 linked rows:** Contests, conferences and decisions 130 contested-violation rows, 102 civil-penalty docket/decision rows, and 16 conference records linked by issuance number.
6. **CONTRACTORS — 51 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 — 33 since 2021:** Inspections 170 inspection events and 7K 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 56.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12006
- **30 CFR 46.6 — Newly hired experienced miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.6
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 56.14109 — Unguarded conveyors with adjacent travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14109
- **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 56.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12019
- **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 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 136 rows; 2000-03-09 through 2026-09-03; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1976-04-12 through 1976-04-12; source ID `msha-addresses`
- **Assessed Violations:** 1,268 rows; 2000-03-28 through 2026-06-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 102 rows; 2005-10-05 through 2020-06-25; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 16 rows; 2006-09-12 through 2021-03-11; source ID `msha-conferences`
- **Contested Violations:** 130 rows; 2005-06-07 through 2019-12-18; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 4,347 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 879 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2015-07-22; source ID `msha-controller-operator-history`
- **Inspections:** 170 rows; 2000-03-27 through 2026-06-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 36 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:** 148 rows; 2002-01-29 through 2025-11-21; source ID `msha-personal-health-samples`
- **Violations:** 1,288 rows; 2000-03-28 through 2026-06-29; 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/demopolis-plant-cemex-inc-0100016`
- JSON: `/api/v1/mines/demopolis-plant-cemex-inc-0100016`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0100016/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0100016/relationships`
- MCP resource: `mine://0100016/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`