Plumbing contractors · Illinois

OSullivan Plumbing, Inc.

Mokena, IL · ~60 workers · 5 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

OSullivan Plumbing, Inc. runs at 79% of its industry's injury rate - safer than the typical Plumbing contractors workplace, earning a grade B.

OSullivan Plumbing, Inc.: 2.2 TCR = 79% of Plumbing contractors BLS 2.8 · 5y Form 300A (see methodology below)

OSullivan Plumbing, Inc. safety composite

OSullivan Plumbing, Inc. scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

C

67/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.22 per 100 workers

Safer than 65% 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

−1.2

2016→2024

OSullivan Plumbing, Inc. injury rate improved

OSullivan Plumbing, Inc.'s TCR fell 1.2 from 1.2 in 2016 to 0.0 in 2024. Peak filing year was 2023 at 6.3 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2016=1.2 · 2017=2.2 · 2019=1.4 · 2023=6.3 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Mokena, IL AT/BELOW-IND · SMALL

Grade B · TCR 2.2 · 79% of ind

  • DART 0.0 DART
  • RANK #111/230
  • PHOTO Harris Mountain West…
  • BOOK 5y book
  • INJ 6 inj
  • SIZE ~60 FTE

Nearest TCR peer: Harris Mountain West SLC, LLC (0.0 TCR gap)

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

OSullivan Plumbing, Inc. in the TCR neighbourhood

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

TCR

What this shows OSullivan Plumbing, Inc. averages 2.2 TCR (79% of the Plumbing contractors BLS benchmark).

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

OSullivan Plumbing, Inc. TCR series: 2016=1.2 · 2017=2.2 · 2019=1.4 · 2023=6.3 · 2024=0 · BLS 2.8

Where OSullivan Plumbing, Inc. falls in its industry

5,793 Plumbing contractors establishments

Safer than 65% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #111 safest of 230 Plumbing contractors employers in Illinois.

OSullivan Plumbing, Inc. (60 employees, TCR 2.2) 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 OSullivan Plumbing, Inc.
OSullivan Plumbing, Inc. (60 employees, TCR 2.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

OSullivan Plumbing, Inc. has more employees than the Plumbing contractors median and a lower 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
2024 0.0 0.0 0 0 0
2023 6.3 3.2 2 0 0
2019 1.4 0.0 1 0 0
2017 2.2 2.2 2 0 0
2016 1.2 0.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · IL · Mokena

5,793 Plumbing contractors employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 47 employers in Mokena, IL · 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 Harris Mountain West SLC, LLC 2.2 TCR
NAICS-TCR Carrier Commercial Services (San Francisco) 2.2 TCR
NAICS-TCR Airco Mechanical Inc. 2.2 TCR
NAICS-TCR Sherman Mechanical Contractors, LLC 2.2 TCR
STATE-SIZE DAS Grand Ridge, IL 60 FTE
STATE-SIZE VDF Agriculture Department 60 FTE
STATE-SIZE AEP Energy - Chicago 60 FTE
STATE-SIZE Illinois American Water (Champaign) 60 FTE
CITY-NEAR Meijer273 265 FTE
CITY-NEAR Presence Life Connections 250 FTE
CITY-NEAR 273 - Mokena 249 FTE
CITY-NEAR Provisur Technologies Mokena 228 FTE
NAT-TCR MK Enterprises, Inc. 2.2 TCR
NAT-TCR Idaho Timber of Chadbourn 2.2 TCR
NAT-TCR Store 203 2.2 TCR
NAT-TCR Owens Corning Brentwood 2.2 TCR
NAT-SIZE Building 12 60 FTE
NAT-SIZE Applied Textiles, Inc. - Michigan Location 60 FTE
NAT-SIZE Alpine Village 60 FTE
NAT-SIZE Parmenter, Inc. 60 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: 2024, 2023, 2019, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.