MINE DETAILS
Demopolis Plant Cemex Inc
MSHA MINE ID0100016
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Demopolis Plant Cemex Inc32.51028, -87.81250Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. MSHA quarterly production and employment reports.
Coal production
—reported short tons
Hours worked
—reported employee hours
Tons per hour
—production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-17
Violations
214 significant & substantial (S&S)
Accident records
70 records classified as fatality
Proposed penalties · USD
16,468.0021 of 21 violations with amounts
On-site inspection hours
82.006 inspections · 6 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 1 | 1 | 1,550.00 | 1 | 0 | 1 | 5.0 |
| 2025-Q2 | 5 | 1 | 6,729.00 | 1 | 0 | 1 | 22.8 |
| 2025-Q3 | 0 | 0 | — | 0 | 0 | 1 | 1.0 |
| 2025-Q4 | 7 | 1 | 6,163.00 | 0 | 0 | 1 | 27.8 |
| 2026-Q1 | 0 | 0 | — | 2 | 0 | 1 | 2.0 |
| 2026-Q2 | 8 | 1 | 2,026.00 | 1 | 0 | 1 | 23.5 |
| 2026-Q3 | 0 | 0 | — | 2 | 0 | 0 | — |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was removing a dust collector cartridge from a baghouse and felt discomfort in EE's lower back area.
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was using a hammer to drive a pin out of a piece of equipment and smashed their right index finger while striking the pin.
56.12006 · $177.00 proposed
46.6 · S&S · $407.00 proposed
56.12002 · $151.00 proposed
56.14109(a) · $267.00 proposed
56.14107(a) · $267.00 proposed
56.12019 · $177.00 proposed
56.14100(c) · $267.00 proposed
56.14101(a)(3) · $313.00 proposed
OTHER · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was entering a silo by way of a work platform and as EE entered the silo EE heard a pop in EE's left knee.
Regular Safety and Health Inspection · 23.5 on-site hours
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Contractor was assisting repairs of coal mill rollers during outage. When shaft was being lowered onto sawhorse the injured who was assisting the moving of the shaft, pinched their right handed middle finger between the shaft and the sawhorse causing a laceration in their finger. Contractor Supervisor took the injured to get medical attention. Receiving 10 sutures.
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was assisting in troubleshooting an ammonia pump when a mist of aqueous ammonia came from the work area and made contact with the side of their face and eye.
Spot Inspection · 2.0 on-site hours
56.11012 · S&S · $2,936.00 proposed
56.12032 · $592.00 proposed
56.14112(b) · $592.00 proposed
56.12032 · $592.00 proposed
56.12018 · $592.00 proposed
56.12002 · $267.00 proposed
56.12032 · $592.00 proposed
Regular Safety and Health Inspection · 27.8 on-site hours
Special Emphasis Programs · 1.0 on-site hours
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was walking through the clinker storage shed and while doing so walked across a spot of unlevel ground and slipped on some loose clinker, folding EE's right ankle underneath EE and landing on EE's right shoulder causing pain to both the ankle and shoulder. EE's right fibula was fractured.
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
Cemex S AcontrolsCEMEX Southeast, LLCoperatesDemopolis Plant Cemex Inc
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100016—
Cemex S AcontrolsCemex IncoperatesDemopolis Plant Cemex Inc
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100016—
Southdown InccontrolsSouthdown IncoperatesDemopolis Plant Cemex Inc
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100016—
Medusa CorpcontrolsMedusa-Citadel IncoperatesDemopolis Plant Cemex Inc
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100016—
Lafarge S AcontrolsLafarge CorpoperatesDemopolis Plant Cemex Inc
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100016Other historical summaries · source-specific periods
RECORD SUMMARY
Production, safety and enforcement
These summaries use the periods stated on each card, independently of the reporting period above.
01 / SAFETYwatch
Accidents and injuries
136 historical accident/injury rows; 0 coded fatalities and 1,730 lost days across the published record.
ACCIDENT + INJURY RECORD22 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
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.
ENFORCEMENT ACTIVITY226 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
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.
OCCUPATIONAL EXPOSURE148 samples
personal-health-samples04 / PRODUCTIONcontext
Quarterly production and employment
52K employee hours and 97 summed average employees across reported subunits in the latest published quarter.
2002-Q40 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
130 contested-violation rows, 102 civil-penalty docket/decision rows, and 16 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE248 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / CONTRACTORScontext
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.
ENTITY-LEVEL CONTEXT51 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
170 inspection events and 7K published inspection hours across the historical record.
OVERSIGHT COVERAGE33 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 17, 2026. 3 silica records across the mine’s published history.
Personal silica samples · concentration / limit
Quarterly mean · published C/E ratio
— No eligible measurements. * Quarter in progress. Means describe the available samples, not average exposure across the mine.
Quartz % is the sample’s quartz content; µg/m³ is its reported concentration. Personal C/E is the ratio to the limit published with that sample. Personal and area concentration units and void status are not specified in those source files.
| Date / sample | Dataset / analyte | Occupation / area | Measurement | Sample status | Published action |
|---|---|---|---|---|---|
| No silica records match these filters. Missing samples do not establish safe conditions. | |||||
Sources and interpretation
- Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
- Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
- Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
- Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
- Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.
Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗
EIA + TITLE 30
EIA production and cited regulations
EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 56.12006Distribution boxes.1 recent row ↗30 CFR 46.6Newly hired experienced miner training.1 recent row ↗30 CFR 56.12002Controls and switches.1 recent row ↗30 CFR 56.14109Unguarded conveyors with adjacent travelways.1 recent row ↗30 CFR 56.14107Moving machine parts.1 recent row ↗30 CFR 56.12019Access to stationary electrical equipment or switchgear.1 recent row ↗30 CFR 56.14100Safety defects; examination, correction and records.1 recent row ↗30 CFR 56.14101Brakes.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
519184456.12006Citation
519184346.6S&S
519184256.12002Citation
519184156.14109(a)Citation
519184056.14107(a)Citation
519183956.12019Citation
519183856.14100(c)Citation
519183756.14101(a)(3)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgBackhoe Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBulldozer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Nuisance dust, respirable, <1% QtzFront-end Loader Operator
C/E: 00.02Concentration: 0000.15 · limit: 0010.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzComplete Load-Haul-Dump
C/E: 00.00Concentration: 0000.29 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzUtility Man
C/E: 00.00Concentration: 0000.32 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
15 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors136Mar 9, 2000—Sep 3, 2026mine-keyed
Addresses of Recordidentity · logistics1Apr 12, 1976—Apr 12, 1976mine-keyed
Assessed Violationscompliance · legal1,268Mar 28, 2000—Jun 29, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal102Oct 5, 2005—Jun 25, 2020mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal16Sep 12, 2006—Mar 11, 2021mine-keyed
Contested Violationscompliance · legal130Jun 7, 2005—Dec 18, 2019mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety4,347Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety879Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance5Jan 1, 1950—Jul 22, 2015mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance36Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance170Mar 27, 2000—Jun 14, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety—No published rowsabsent / not applicable
Metal and Nonmetal Personal Health Sampleshealth · safety148Jan 29, 2002—Nov 21, 2025mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal1,288Mar 28, 2000—Jun 29, 2026mine-keyed
107(a) Orders Issuedsafety · compliance—No published rowsabsent / not applicable
NOTES
Limitations
- Contractor production is entity-level and is never represented as mine-attributable.
- Missing rows can mean no event, publication delay, identity mismatch, or inapplicability.