Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: MASS DEVELOPMENT, INC.

Complaint inspection · Safety discipline

On , OSHA opened a complaint safety inspection of MASS DEVELOPMENT, INC. in 6245 HILL AVE., WHITTIER, CA 90601 (NAICS 236115). OSHA activity number 344231006.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
6245 HILL AVE.
City
WHITTIER
State
CA
ZIP
90601
Mailing
11743 RAMONA AVE., CHINO, CA 91710
Inspection type
Complaint (B)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Last modified
Data loaded
NAICS code
236115
Employees
4
Ownership type
A

6 citations on file for this inspection.

1509(C)

Repeat Gravity 1 1 instance 2 exposed
Issued
Feb 6, 2020
Abate by
Mar 25, 2020
Penalty
Initial $600 · Current $600
Recent events (1)
  • — Z (R) $600

1512(B)

Repeat Gravity 1 1 instance 2 exposed
Issued
Feb 6, 2020
Abate by
Mar 25, 2020
Penalty
Initial $1,200 · Current $1,200
Recent events (1)
  • — Z (R) $1200

1527(A)(1)

Other-than-serious Gravity 1 1 instance 2 exposed
Issued
Feb 6, 2020
Abate by
Mar 25, 2020
Penalty
Initial $200 · Current $200
Recent events (1)
  • — Z (O) $200

1712(C)(1)

Repeat Gravity 1 1 instance 1 exposed
Issued
Feb 6, 2020
Abate by
Mar 25, 2020
Penalty
Initial $1,200 · Current $1,200
Recent events (1)
  • — Z (R) $1200

3276(D)(1)

Other-than-serious Gravity 1 1 instance 1 exposed
Issued
Feb 6, 2020
Abate by
Mar 25, 2020
Penalty
Initial $150 · Current $150
Recent events (1)
  • — Z (O) $150

3395(H)(1)

Repeat Gravity 1 1 instance 2 exposed
Issued
Feb 6, 2020
Abate by
Mar 25, 2020
Penalty
Initial $1,200 · Current $1,200
Recent events (1)
  • — Z (R) $1200

View Mass Development, INC.'s full OSHA safety record →

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 344231006.

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