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

OSHA Inspection: MAAS BROTHERS CONSTRUCTION CO. INC.

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of MAAS BROTHERS CONSTRUCTION CO. INC. in 400 BERNARD ST., OCONOMOWOC, WI 53094 (NAICS 236220). OSHA activity number 313524035.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

Watch Maas Brothers Construction CO. INC. — free Get an email when a new federal OSHA severe-injury report for Maas Brothers Construction CO. INC. is published. One employer, no account, unsubscribe in one click.
Site address
400 BERNARD ST.
City
OCONOMOWOC
State
WI
ZIP
53094
Mailing
P.O. BOX 108, WATERTOWN, WI 53094
Inspection type
Planned (H)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
Y
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
236220
SIC code (legacy)
1541
Employees
33
Ownership type
A
Industry flags
Construction safety.

2 citations on file for this inspection.

1926.501 B10

Other-than-serious Gravity 02 1 instance 1 exposed
Issued
Nov 17, 2009
Abate by
Nov 30, 2009
Penalty
Initial $700 · Current $700
Recent events (2)
  • — I (O) $700.00
  • — Z (S) $700.00

1926.503 A02

Deleted Serious Gravity 02 1 instance 1 exposed
Issued
Nov 17, 2009
Abate by
Dec 5, 2009
Penalty
Initial $700 · Current $700
Recent events (2)
  • — I (S) $700.00
  • — Z (S) $700.00

View Maas Brothers Construction CO. 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 313524035.

Look up any company's OSHA accident reports by company, or browse severe injury reports by year, state, and company.