2,042,423Injury reports 130,778Establishments Most recent incident 2025-12-31
Safety Incidents OSHA Severe Injury Reports · 2015–2025

Rochester, MN —

OSHA Injury Report: Tonna Mechanical, Inc.

Injury · Days away from work

At a glance

On , an injury at Tonna Mechanical, Inc. in 1440 Industrial Dr NW, Rochester, MN 559010831 resulted in days away from work. Employee was commercial HVACR Technician in plumbing and heating contractors.

Where did this happen?

Establishment
Tonna Mechanical, Inc.
Parent company
Tonna Mechanical, Inc.
Street
1440 Industrial Dr NW
City
Rochester
State
MN
ZIP
559010831
On-site location
Residential jobsite – exterior

What was the outcome?

Outcome
Days away from work (code 2)
Type
Injury (code 1)
Days away from work
1
Days restricted or transferred
10

Before the incident

The employee was lifting and moving an AC condensing unit during installation activities.

What happened

While lifting and repositioning the AC condensing unit the employee experienced pain in the lower back.

Injury or illness

Lower back strain.

Object or substance involved

AC condensing unit.

Summary line

Lower back strain from moving AC condensing unit

Employee and industry

Job description
Commercial HVACR Technician
SOC code
49-9021 — Heating, Air Conditioning, and Refrigeration Mechanics and Inst
NAICS code
238220 — Plumbing and heating contractors
NAICS vintage
2022
Avg employees
91
Total hours worked
162038
EIN
411269382
Establishment ID
1436326
Employer case #
5

When (timing detail)

Date of incident
Shift started
7:18
Filing year
2025
Submitted
22JAN26:17:19:00

More injuries at Tonna Mechanical, Inc.

View Tonna Mechanical, Inc.'s full OSHA safety record →

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Source

Data from OSHA ITA Form 300/301 electronic submissions, filing year 2025. ITA Case Detail records are establishment-reported submissions, not OSHA inspections — no per-record IMIS deep link exists.