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

OSHA Inspection: NELSON CARLSON MECHANICAL CONTRACTORS, INC.

Unprogrammed Related inspection · Health discipline

On , OSHA opened an unprogrammed Related health inspection of NELSON CARLSON MECHANICAL CONTRACTORS, INC. in 1165 PRAIRIE HILL ROAD, ROCKTON, IL 61072 (NAICS 238220). OSHA activity number 334184637.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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 Nelson Carlson Mechanical Contractors, INC. — free Get an email when a new federal OSHA severe-injury report for Nelson Carlson Mechanical Contractors, INC. is published. One employer, no account, unsubscribe in one click.
Site address
1165 PRAIRIE HILL ROAD
City
ROCKTON
State
IL
ZIP
61072
Mailing
1417 22ND ST., ROCKFORD, IL 61108
Inspection type
Unprogrammed Related (G)
Scope
Partial (B)
Discipline
Health
Advance notice
No
Union status
A
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
238220
Employees
60
Ownership type
A

3 citations on file for this inspection.

1910.147 C04 II B

Serious Gravity 5 1 instance 1 exposed
Issued
May 31, 2012
Abate by
Jul 13, 2012
Penalty
Initial $4,200 · Current $4,200
29 CFR 1910.147(c)(4)(ii)(B):     The energy control procedures did not clearly and specifically outline the steps for shutting down, isolating, blocking and securing machines or equipment to control hazardous energy.    On or about February 29, 2012, an employee, of Nelson Carlson Mechanical Contractors, Inc. and working at the Chemtool, Inc., facility in Rockton, Illinois, was injured after a 1/4" nipple on a hot oil pipe ruptured when the employee attempted to tighten it in order to fix a leak.  The employer's energy control procedures did not clearly and specfically outline the steps for shutting down, isolating, blocking and securing the equipment to control hazardous energy such as hot oil under pressure.    DOCUMENTATION AND CERTIFICATION IS REQUIRED OF THIS ITEM.
Recent events (2)
  • — I (S) $4200
  • — Z (S) $4200

1910.147 D03

Serious Gravity 5 1 instance 1 exposed
Issued
May 31, 2012
Abate by
Jun 15, 2012
Penalty
Initial $4,200 · Current $0 Reduced
29 CFR 1910.147(d)(3):     All energy isolating devices that were needed to control the energy to the machine or equipment were not physically located and operated in such a manner as to isolate the machine or equipment from the energy source(s):      On or about February 29, 2012, an employee, of Nelson Carlson Mechanical Contractors, Inc., and working at the Chemtool, Inc., facility in Rockton, Illinois, was injured after a 1/4" nipple on a hot oil pipe ruptured when the employee attempted to tighten it in order to fix a leak.  The energy isolating devices, such as a pipe blanking device, that were needed to control the thermal energy of hot oil under pressure were not physically located and operated in such a manner as to isolate the equipment from the energy source.    DOCUMENTATION AND CERTIFICATION IS REQUIRED OF THIS ITEM.
Recent events (2)
  • — I (S) $0
  • — Z (S) $4200

1910.147 D04 I

Serious Gravity 5 1 instance 1 exposed
Issued
May 31, 2012
Abate by
Jul 13, 2012
Penalty
Initial $0 · Current $0
29 CFR 1910.147(d)(4)(i):     Lockout or tagout devices were not affixed to each energy isolating device by authorized employees:    On or about February 29, 2012, an employee, of Nelson Carlson Mechanical Contractors, Inc., and working at the Chemtool, Inc., facility in Rockton, Illinois, was injured after a 1/4" nipple on a hot oil pipe ruptured when the employee attempted to tighten it in order to fix a leak.  A lockout or tagout device was not affixed to each energy isolating device by the authorized employee.    DOCUMENTATION AND CERTIFICATION IS REQUIRED OF THIS ITEM.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

View Nelson Carlson Mechanical Contractors, 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 334184637.

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