Central air-conditioning equipment installation · Minnesota

Ag O'Brien Plumbing and Heating Company

Hermantown, MN · ~45 workers · 4 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
7.1
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Ag O'Brien Plumbing and Heating Company runs at 254% of its industry's injury rate - far more dangerous than the typical Central air-conditioning equipment installation workplace, earning a grade F.

Ag O'Brien Plumbing and Heating Company: 7.1 TCR = 254% of Central air-conditioning equipment installation BLS 2.8 · 4y Form 300A (see methodology below)

Ag O'Brien Plumbing and Heating Company safety composite

Ag O'Brien Plumbing and Heating Company scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 21%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

49/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 7.12 per 100 workers

Safer than 21% of industry peers

DART rate
B 0 per 100 workers

Safer than 80% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−17.0

2018→2021

Ag O'Brien Plumbing and Heating Company injury rate improved

Ag O'Brien Plumbing and Heating Company's TCR fell 17.0 from 17.0 in 2018 to 0.0 in 2021. Peak filing year was 2018 at 17.0 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2018=17.0 · 2019=4.6 · 2020=6.9 · 2021=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Hermantown, MN ABOVE-IND · SMALL

Grade F · TCR 7.1 · 254% of ind

  • DART 0.0 DART
  • RANK #97/153
  • PHOTO White Mechanical, Inc.
  • BOOK 4y book
  • INJ 12 inj
  • SIZE ~45 FTE

Nearest TCR peer: White Mechanical, Inc. (0.0 TCR gap)

Read with this employer → · Industry book → · Minnesota employers → · Look up another →

Ag O'Brien Plumbing and Heating Company in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Ag O'Brien Plumbing and Heating Company averages 7.1 TCR (254% of the Central air-conditioning equipment installation BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Ag O'Brien Plumbing and Heating Company TCR series: 2018=17 · 2019=4.6 · 2020=6.9 · 2021=0 · BLS 2.8

Where Ag O'Brien Plumbing and Heating Company falls in its industry

5,793 Central air-conditioning equip establishments

Safer than 21% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Minnesota alone (the establishments it most directly competes with for workers and contracts): ranked #97 safest of 153 Central air-conditioning equip employers in Minnesota.

Ag O'Brien Plumbing and Heating Company (45 employees, TCR 7.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 050100150200250 05101520 Average employees Total Case Rate Ag O'Brien Plumbing and Heating Company
Ag O'Brien Plumbing and Heating Company (45 employees, TCR 7.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Ag O'Brien Plumbing and Heating Company has fewer employees than the Central air-conditioning equipment insta median and a higher injury rate than the industry's median TCR of 3.3. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2021 0.0 0.0 0 0 0
2020 6.9 2.3 3 0 0
2019 4.6 0.0 2 0 0
2018 17.0 14.6 7 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MN · Hermantown

5,793 Central air-conditioning equipment installation employers nationwide with a credible TCR · 15,828 rated employers in Minnesota with headcount on file · 32 employers in Hermantown, MN · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR White Mechanical, Inc. 7.1 TCR
NAICS-TCR AB May Company 7.1 TCR
NAICS-TCR Hinton Refrigeration Co. 7.1 TCR
NAICS-TCR Craig Mechanical, Inc. 7.1 TCR
STATE-SIZE District 45 45 FTE
STATE-SIZE Allstar Construction Commercial Op Co, LLC 45 FTE
STATE-SIZE Doran Construction Company, LLC 45 FTE
STATE-SIZE Hasslen Construction Company, Inc. 45 FTE
CITY-NEAR WM 1757 361 FTE
CITY-NEAR 1757 322 FTE
CITY-NEAR HERMANTOWN MN - 3054 208 FTE
CITY-NEAR 6320 192 FTE
NAT-TCR Cardinal Hayes Home for Children Millbrook ICF 7.1 TCR
NAT-TCR ATS Drilling, Inc. 7.1 TCR
NAT-TCR Core-Mark International 7.1 TCR
NAT-TCR Bed Bath and Beyond Enfield 7.1 TCR
NAT-SIZE Richardson #533 45 FTE
NAT-SIZE EIT Elizabethtown 45 FTE
NAT-SIZE 7861-Enphg-Franklin College 45 FTE
NAT-SIZE Titan Steel Corp 45 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2021, 2020, 2019, 2018. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.