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

OSHA Inspection: UNDERWATER CONSTRUCTION CORPORATION

Federal Agency inspection · Health discipline

On , OSHA opened a federal Agency health inspection of UNDERWATER CONSTRUCTION CORPORATION in EXELON LASALLE NUCLEAR 2601 N 21ST RD, MARSEILLES, IL 61341 (NAICS 237990). OSHA activity number 344448212.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
EXELON LASALLE NUCLEAR 2601 N 21ST RD
City
MARSEILLES
State
IL
ZIP
61341
Mailing
4295 N ROOSEVELT RD, STEVENSVILLE, MI 49127
Inspection type
Federal Agency (M)
Scope
Partial (B)
Discipline
Health
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
237990
Employees
70
Ownership type
A

2 citations on file for this inspection.

1910.421 D02

Other-than-serious Gravity 10 1 instance 6 exposed
Issued
Apr 22, 2020
Abate by
May 29, 2020
Penalty
Initial $13,494 · Current $13,494
29 CFR 1910.421(d)(2): Planning of a diving operation did not include an assessment of the safety and health aspects of surface and underwater conditions:  On or about November 12, 2019, a fatality of an Underwater Construction Corporation (UCC) in-water tender occurred during the initial set-up of a diving operation at the Exelon Nuclear LaSalle Station in Marsellies, IL. The employee was exposed to hazards due to the operation of a pump which may cause differential pressure (Delta P) changes along with other hazardous underwater conditions. The employer did not ensure diving operations included an adequate assessment that would include controls to prevent or correct such hazards that may arise during underwater activities.        Abatement documentation is required for this item in accordance with the requirements of 29 CFR 1903.19(d).
Recent events (3)
  • — F (O) $13494
  • — C (S) $13494
  • — Z (S) $13494

1910.421 D05

Other-than-serious Gravity 10 1 instance 6 exposed
Issued
Apr 22, 2020
Abate by
May 29, 2020
Penalty
Initial $13,494 · Current $13,494
29 CFR 1910.421(d)(5): Planning of a diving operation did not include an assessment of the safety and health aspects of the diving equipment and systems:  On or about November 12, 2019, a fatality of an Underwater Construction Corporation (UCC) in-water tender occurred during the initial set-up of a diving operation at the Exelon Nuclear LaSalle Station in Marsellies, IL. The employee was exposed to hazards due to the operation of a pump which may cause differential pressure (Delta P) changes along with other hazardous underwater conditions. The employer did not ensure that the planning of diving operations included a proper assessment of the diving equipment and systems necessary to prevent or correct hazards that may arise during underwater activities.  Abatement documentation is required for this item in accordance with the requirements of 29 CFR 1903.19(d).
Recent events (3)
  • — F (O) $13494
  • — C (S) $13494
  • — Z (S) $13494

View Underwater Construction Corporation'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 344448212.

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