Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,214Inspections Most recent open 2026-07-16 Last loaded 2026-07-20

OSHA Inspection: METAL MATRIX CAST COMPOSITES, INC.

Planned inspection · Health discipline

On , OSHA opened a planned health inspection of METAL MATRIX CAST COMPOSITES, INC. in 101 CLEMATIS AVENUE #1, WALTHAM, MA 02453 (NAICS 331524). OSHA activity number 315556555.

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Site address
101 CLEMATIS AVENUE #1
City
WALTHAM
State
MA
ZIP
02453
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Health
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
331524
SIC code (legacy)
3365
Employees
11
Ownership type
A

3 citations on file for this inspection.

1910.101 B

Serious Gravity 05 1 instance 6 exposed
Issued
Abate by
Penalty
Initial $3000.00 · Current $2100.00 Reduced

Hazardous substances 19001410

Recent events (2)
  • — I (S) $2100.00
  • — Z (S) $3000.00

1910.101 B

Serious Gravity 05 1 instance 6 exposed
Issued
Abate by

Hazardous substances 19001410

Recent events (2)
  • — I (S)
  • — Z (S)

1910.303 B02

Serious Gravity 05 1 instance 6 exposed
Issued
Abate by
Penalty
Initial $3000.00 · Current $2100.00 Reduced
Recent events (2)
  • — I (S) $2100.00
  • — Z (S) $3000.00

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 315556555.