MINE DETAILS
Amrize Sloan Quarry #1001
MSHA MINE ID2601845
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Amrize Sloan Quarry #100135.94278, -115.21639Open 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
362 significant & substantial (S&S)
Accident records
30 records classified as fatality
Proposed penalties · USD
17,122.0036 of 36 violations with amounts
On-site inspection hours
100.755 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 | 6 | 1 | 4,731.00 | 0 | 0 | 1 | 30.8 |
| 2025-Q2 | 9 | 1 | 4,712.00 | 1 | 0 | 2 | 28.3 |
| 2025-Q3 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2025-Q4 | 11 | 0 | 2,896.00 | 1 | 0 | 1 | 22.3 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q2 | 10 | 0 | 4,783.00 | 0 | 0 | 1 | 19.5 |
| 2026-Q3 | 0 | 0 | — | 0 | 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
56.14100(c) · $432.00 proposed
56.12021 · $432.00 proposed
56.14200 · $193.00 proposed
56.4130(b) · $432.00 proposed
56.12032 · $549.00 proposed
56.12008 · $549.00 proposed
56.14207 · $549.00 proposed
Regular Safety and Health Inspection · 19.5 on-site hours
47.41(a) · $549.00 proposed
56.12019 · $549.00 proposed
56.12008 · $549.00 proposed
56.20003(a) · $226.00 proposed
56.14207 · $267.00 proposed
56.4104(b) · $267.00 proposed
56.14112(b) · $267.00 proposed
56.12004 · $267.00 proposed
56.12004 · $267.00 proposed
56.12002 · $267.00 proposed
56.12028 · $267.00 proposed
56.12019 · $267.00 proposed
Regular Safety and Health Inspection · 22.3 on-site hours
56.17001 · $267.00 proposed
56.4104(b) · $267.00 proposed
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was cleaning metal off of the metal magnet. While trying to remove a bolt from the magnet the employee finger poked by a piece of steel.
SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
While using A-frame ladder to remove material from elevated beams, the RAM team member had already made several trips up/down the ladder. On way back up for another trip, ladder tipped over while EE was climbing, resulting in a fall. The RAM team member was taken to the hospital. Medical evaluation, including x-rays, revealed a fracture to both the tibia & fibula, requiring surgery
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.
—
Amrize LtdcontrolsBardon Materials IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Amrize LtdcontrolsAggregate Industries West Central Region, Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Amrize LtdcontrolsAmrize Southwest Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Holcim LtdcontrolsBardon Materials IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Holcim LtdcontrolsAggregate Industries West Central Region, Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Holcim LtdcontrolsAmrize Southwest Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Holcim LtdcontrolsAmrize Southwest Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Garth FrehnercontrolsAmrize Southwest Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Aggregate Industries PLCcontrolsAmrize Southwest Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Holcim LtdcontrolsAggregate Industries West Central Region, Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Aggregate Industries PLCcontrolsAggregate Industries West Central Region, Inc.operatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Floyd A MeldrumcontrolsSouthern Nevada Paving IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Holcim LtdcontrolsBardon Materials IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Holcim LtdcontrolsSouthern Nevada Paving IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Aggregate Industries PLCcontrolsSouthern Nevada Paving IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Aggregate Industries PLCcontrolsBardon Materials IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845—
Garth FrehnercontrolsBardon Materials IncoperatesAmrize Sloan Quarry #1001
msha-controller-operator-history · controller/operator co-tenure derived on mine 2601845Other 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
35 historical accident/injury rows; 0 coded fatalities and 89 lost days across the published record.
ACCIDENT + INJURY RECORD6 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
495 violation rows across the full record; 101 carry an S&S flag and $231,597 appears in current assessed amounts.
ENFORCEMENT ACTIVITY107 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHcontext
Occupational health samples
14 personal; 1 area. 0 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 EXPOSURE15 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
16K employee hours and 35 summed average employees across reported subunits in the latest published quarter.
2002-Q40 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
14 contested-violation rows, 13 civil-penalty docket/decision rows, and 53 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE80 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 CONTEXT10 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
108 inspection events and 3K published inspection hours across the historical record.
OVERSIGHT COVERAGE15 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 17, 2026. 6 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 |
|---|---|---|---|---|---|
| 000000202602081700 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Bobcat Operator | 0× published limitConcentration: 0000.25 · limit: 0000.00Source unit unspecified | Not reported | NO ACTIONInspection F031E24 |
| 000000202602081800 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Bobcat Operator | 0× published limitConcentration: 0000.28 · limit: 0000.00Source unit unspecified | Not reported | NO ACTIONInspection F031E24 |
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 56.14100Safety defects; examination, correction and records.1 recent row ↗30 CFR 56.12021Danger signs.1 recent row ↗30 CFR 56.14200Warnings prior to starting or moving equipment.1 recent row ↗30 CFR 56.4130Electric substations and liquid storage facilities.1 recent row ↗30 CFR 56.12032Inspection and cover plates.1 recent row ↗30 CFR 56.12008Insulation and fittings for power wires and cables.2 recent rows ↗30 CFR 56.14207Parking procedures for unattended equipment.2 recent rows ↗30 CFR 47.41Requirement for container labels.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
510367356.14100(c)Citation
510367256.12021Citation
510367156.14200Citation
510367056.4130(b)Citation
510366956.12032Citation
510366856.12008Citation
510366756.14207Citation
510366647.41(a)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgTruck Driver
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
Unlisted Particulate, respirable, <1% QtzTruck Driver
C/E: 00.00Concentration: 0000.13 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzCleanup Man
C/E: 00.00Concentration: 0000.57 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzLaborer, Bullgang
C/E: 00.00Concentration: 0000.22 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzLaborer, Bullgang
C/E: 00.00Concentration: 0000.18 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors35May 25, 2000—Oct 8, 2025mine-keyed
Addresses of Recordidentity · logistics1Oct 1, 2011—Oct 1, 2011mine-keyed
Assessed Violationscompliance · legal489Mar 6, 2000—May 20, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal13Aug 20, 2010—Mar 4, 2020mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal53Apr 19, 2000—Dec 19, 2025mine-keyed
Contested Violationscompliance · legal14Feb 20, 2004—Aug 26, 2019mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,029Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety242Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance17May 1, 1983—Nov 25, 2012mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance16Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance53Not published—Not publishedmine-keyed
Inspectionssafety · compliance108Mar 6, 2000—May 18, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety1Mar 23, 2016—Mar 23, 2016mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety14Jun 19, 2007—May 19, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal495Mar 6, 2000—May 20, 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.