MSHA DATABASEMSHA records · 15 contributing sources · snapshot Oct 17, 2026

MINE DETAILS

Amrize Lockport Quarry

ActiveSurfaceCrushed, Broken Limestone NEC
MSHA MINE ID3000045
LOCATIONNiagara, NY
PUBLIC RECORD1,593 linked rows

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-17Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

11

1 significant & substantial (S&S)

  1. 2025 Q11
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q42
  5. 2026 Q10
  6. 2026 Q27
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

1

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

2,547.00

11 of 11 violations with amounts

  1. 2025 Q1151
  2. 2025 Q2151
  3. 2025 Q3—
  4. 2025 Q4302
  5. 2026 Q1—
  6. 2026 Q21,943
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

61.50

5 inspections · 5 with hours

  1. 2025 Q19.75
  2. 2025 Q212.50
  3. 2025 Q3—
  4. 2025 Q416.50
  5. 2026 Q1—
  6. 2026 Q222.75
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q110151.000019.8
2025-Q210151.0000112.5
2025-Q300—000—
2025-Q420302.0000116.5
2026-Q100—000—
2026-Q2711,943.0000222.8
2026-Q300—100—
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. accident220262590012

    HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    While splicing a belt, an employee used a retractable knife to remove excess material after skiving, resulting in a cut to their left index finger knuckle. The CORE Medical hotline initially advised first-aid treatment (liquid skin and butterfly sutures). Post-shift, the employee sought further medical evaluation at a hospital and received stitches.

  2. inspectionF02CE49

    Compliance Follow-up Inspection · 1.5 on-site hours

  3. violation5079606

    56.14115(b) · $151.00 proposed

  4. violation5079605

    56.14100(b) · S&S · $1,037.00 proposed

  5. inspectionF02CE48

    Regular Safety and Health Inspection · 21.3 on-site hours

  6. violation5079604

    56.4201(a)(2) · $151.00 proposed

  7. violation5079603

    56.12008 · $151.00 proposed

  8. violation5079602

    56.12004 · $151.00 proposed

  9. violation5079601

    56.12004 · $151.00 proposed

  10. violation5074800

    56.11001 · $151.00 proposed

  11. violation5074754

    46.9(a) · $151.00 proposed

  12. violation5074753

    56.12001 · $151.00 proposed

  13. inspectionF02CE2E

    Regular Safety and Health Inspection · 16.5 on-site hours

  14. violation9804592

    56.12004 · $151.00 proposed

  15. inspectionF017A9C

    Regular Safety and Health Inspection · 12.5 on-site hours

  16. violation9804542

    56.12068 · $151.00 proposed

  17. inspectionF011D26

    Regular Safety and Health Inspection · 9.8 on-site hours

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.

CURRENT HIERARCHYAmrize Ltd → Amrize Great Lakes Inc. → Amrize Lockport Quarry
HISTORY RECORDS1229 relationships
INTERVAL CHECK2 REVIEWcontroller/operator overlap
—

Amrize LtdcontrolsRedland Quarries NY Inc.operatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Amrize LtdcontrolsAmrize Great Lakes Inc.operatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Holcim LtdcontrolsRedland Quarries NY Inc.operatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Holcim LtdcontrolsAmrize Great Lakes Inc.operatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Lafarge S AcontrolsAmrize Great Lakes Inc.operatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Lafarge S AcontrolsLafarge Mid Atlantic, LLCoperatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Lafarge S AcontrolsRedland Quarries NY Inc.operatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Lafarge S AcontrolsRedland Frontier IncoperatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Redland PlccontrolsRedland Frontier IncoperatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

David J Mahar et alcontrolsFrontier Stone IncoperatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Cimenteries Cbr CementbedrijvencontrolsGenstar Stone Products CompanyoperatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
—

Flintkote CompanycontrolsFlintkote Cement CompanyoperatesAmrize Lockport Quarry

msha-controller-operator-history · controller/operator co-tenure derived on mine 3000045
Other 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

14 historical accident/injury rows; 0 coded fatalities and 242 lost days across the published record.

ACCIDENT + INJURY RECORD2 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

285 violation rows across the full record; 57 carry an S&S flag and $104,837 appears in current assessed amounts.

ENFORCEMENT ACTIVITY54 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHcontext

Occupational health samples

132 personal. 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 EXPOSURE132 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

14K employee hours and 23 summed average employees across reported subunits in the latest published quarter.

2002-Q40 tons
mine-production-quarterlymine-production-yearly
05 / LEGALwatch

Contests, conferences and decisions

20 contested-violation rows, 19 civil-penalty docket/decision rows, and 6 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE45 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions
06 / 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 CONTEXT4 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

91 inspection events and 2K published inspection hours across the historical record.

OVERSIGHT COVERAGE17 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records00 coal · 0 personal · 0 area
Sample status0 not voided0 voided · 0 status not reported
Personal samples with C/E > 1—0 published ratios · not a citation count
2026 · No reported dates in this selection
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished 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.

RECENT PUBLIC RECORDS

Recent violations and samples

Latest records retained for inspection; aggregates above use the full source history.

VIOLATIONS12 latest shown
507960656.14115(b)Citation
507960556.14100(b)S&S
507960456.4201(a)(2)Citation
507960356.12008Citation
507960256.12004Citation
507960156.12004Citation
507480056.11001Citation
507475446.9(a)Citation
OTHER HEALTH SAMPLES5 latest shown

Coal dust, noise and other contaminants. Silica records above ↑

Respirable dust, <.1mgCrusher Oper/Worker
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
Respirable dust, <.1mgBackhoe Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Zinc oxide fumesWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0005.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

15 datasets contain linked records. Missing datasets are listed below.

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors14Mar 8, 2001—Sep 14, 2026mine-keyed
Addresses of Recordidentity · logistics1Jan 3, 1983—Jan 3, 1983mine-keyed
Assessed Violationscompliance · legal283Apr 19, 2000—Jun 3, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal19Jul 19, 2011—Dec 21, 2017mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal6Jun 7, 2002—Jun 21, 2019mine-keyed
Contested Violationscompliance · legal20Apr 17, 2008—Jul 19, 2017mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety514Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety115Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance12Jan 1, 1950—Dec 1, 2010mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance33Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance67Not published—Not publishedmine-keyed
Inspectionssafety · compliance91Apr 17, 2000—Jun 8, 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 · safety132Jun 20, 2001—Nov 7, 2024mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal285Apr 19, 2000—Jun 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.