MINE DETAILS
Montevallo Quarry & Mill
MSHA MINE ID0100040
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Montevallo Quarry & Mill33.16556, -86.62694Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
0reported short tons
Hours worked
294,931reported employee hours
Tons per hour
0.00production ÷ 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 | 0 | 50,256 | 0.00 | 88 | 1/1 mines reporting |
| 2025 Q2 | 0 | 48,174 | 0.00 | 88 | 1/1 mines reporting |
| 2025 Q3 | 0 | 48,330 | 0.00 | 84 | 1/1 mines reporting |
| 2025 Q4 | 0 | 45,751 | 0.00 | 80 | 1/1 mines reporting |
| 2026 Q1 | 0 | 53,796 | 0.00 | 84 | 1/1 mines reporting |
| 2026 Q2 | 0 | 48,624 | 0.00 | 84 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
132 significant & substantial (S&S)
Accident records
60 records classified as fatality
Proposed penalties · USD
1,533.007 of 13 violations with amounts
On-site inspection hours
114.255 inspections · 5 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 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2025-Q2 | 6 | 1 | 1,382.00 | 1 | 0 | 1 | 28.0 |
| 2025-Q3 | 0 | 0 | — | 0 | 0 | 1 | 10.0 |
| 2025-Q4 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q1 | 1 | 0 | 151.00 | 4 | 0 | 1 | 49.0 |
| 2026-Q2 | 0 | 0 | — | 0 | 0 | 1 | 4.0 |
| 2026-Q3 | 6 | 1 | — | 0 | 0 | 1 | 23.3 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
56.11001
56.20003(a) · S&S
56.11003
56.14132(a)
56.14112(b)
56.13011
Regular Safety and Health Inspection · 23.3 on-site hours
Verbal Hazard Complaint Inspections · 4.0 on-site hours
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
EE had clocked out and was in the contractor parking lot at EE's car. EE removed EE's boots and banged them together to shake off excess mud, dirt, and lime, which got into EE's left eye.
56.20003(a) · $151.00 proposed
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
EE squatting down to put a bolt and not in a belt skirt and EE's left foot slid causing EE to injure EE's left knee
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
EE was walking down the stairs from the K3/K4 burner floor towards the K4 coal mill while carrying samples. EE stepped down from the last step in the stairs, rolled EE's ankle and fell to the ground.
Regular Safety and Health Inspection · 49.0 on-site hours
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
The injured employee sprained/strained EE's right shoulder when rodding out a chute on the coal system. The upward and outward thrusting motion performed while holding the rod caused the injury.
Spot Inspection · 10.0 on-site hours
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was hydroblasting a scrubber and material fell from the wall hitting employee in the back of the head. This resulted in the employee receiving 8 staples in the head. Employee was wearing a hardhat and material knocked hardhat off.
56.12004 · $151.00 proposed
56.16005 · $151.00 proposed
56.12034 · $151.00 proposed
56.13021 · S&S · $465.00 proposed
56.12032 · $151.00 proposed
56.20003(a) · $313.00 proposed
Regular Safety and Health Inspection · 28.0 on-site hours
POWERED HAULAGE · DAYS AWAY FROM WORK ONLY
Accident narrative
ROOT CAUSE - cylinder punctured and cracked the cylinder housing causing the trailer to drop down approximately 4-5 feet without the cylinder engaged. Worker was injured due to a safety violation (not wearing a seatbelt at all times). CONTRIBUTING FACTOR - normal wear and tear from daily use.
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
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.
—
Lhoist GroupcontrolsLhoist North America of Alabama, LLCoperatesMontevallo Quarry & Mill
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100040—
Chemical Lime CompanycontrolsLhoist North America of Alabama, LLCoperatesMontevallo Quarry & Mill
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100040—
M A RikardcontrolsAllied Products CompanyoperatesMontevallo Quarry & Mill
msha-controller-operator-history · controller/operator co-tenure derived on mine 0100040Other 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
122 historical accident/injury rows; 0 coded fatalities and 3,449 lost days across the published record.
ACCIDENT + INJURY RECORD12 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
1,004 violation rows across the full record; 271 carry an S&S flag and $576,432 appears in current assessed amounts.
ENFORCEMENT ACTIVITY105 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
59 personal. 10 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 EXPOSURE59 samples
personal-health-samples04 / PRODUCTIONcontext
Quarterly production and employment
49K employee hours and 84 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
99 contested-violation rows, 101 civil-penalty docket/decision rows, and 35 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE235 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 CONTEXT46 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
168 inspection events and 6K published inspection hours across the historical record.
OVERSIGHT COVERAGE21 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 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 56.11001Safe access.1 recent row ↗30 CFR 56.20003Housekeeping.2 recent rows ↗30 CFR 56.11003Construction and maintenance of ladders.1 recent row ↗30 CFR 56.14132Horns and backup alarms.1 recent row ↗30 CFR 56.14112Construction and maintenance of guards.1 recent row ↗30 CFR 56.13011Air receiver tanks.1 recent row ↗30 CFR 56.12004Electrical conductors.1 recent row ↗30 CFR 56.16005Securing gas cylinders.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
506510656.11001Citation
506510556.20003(a)S&S
506510456.11003Citation
506510356.14132(a)Citation
506510256.14112(b)Citation
506510156.13011Citation
506490956.20003(a)Citation
982776356.12004Citation
Coal dust, noise and other contaminants. Silica records above ↑
Unlisted Particulate, respirable, <1% QtzUtility Man
C/E: 00.00Concentration: 0000.15 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgElectrician
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzKiln/Dryer Operator
C/E: 00.00Concentration: 0000.29 · limit: 0000.00Source unit unspecified
Nuisance dust, total, <1% QtzBagging Operator
C/E: 00.00Concentration: 0000.00 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzFront-end Loader Operator
C/E: 00.05Concentration: 0000.49 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzKiln/Dryer Operator
C/E: 00.03Concentration: 0000.29 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzCleanup Man
C/E: 00.02Concentration: 0000.22 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzBagging Operator
C/E: 00.82Concentration: 0008.21 · limit: 0010.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
15 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors122Jan 5, 2000—Mar 12, 2026mine-keyed
Addresses of Recordidentity · logistics1Apr 5, 1988—Apr 5, 1988mine-keyed
Assessed Violationscompliance · legal973Aug 29, 2000—Feb 10, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal101Mar 16, 2004—Jul 11, 2024mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal35Feb 21, 2003—May 20, 2024mine-keyed
Contested Violationscompliance · legal99Nov 20, 2007—Jan 18, 2024mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety4,065Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety872Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance3Jan 1, 1950—Jul 31, 1989mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance199Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance43Not published—Not publishedmine-keyed
Inspectionssafety · compliance168Jan 18, 2000—Aug 31, 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 · safety59Jun 14, 2001—Sep 19, 2025mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal1,004Aug 29, 2000—Sep 3, 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.