Plumbers · Maryland

O'Connor Plumbing

Germantown, MD · ~108 workers · 5 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.8
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

O'Connor Plumbing runs at 101% of its industry's injury rate - about level with the typical Plumbers workplace, earning a grade C.

O'Connor Plumbing: 2.8 TCR = 101% of Plumbers BLS 2.8 · 5y Form 300A (see methodology below)

O'Connor Plumbing safety composite

O'Connor Plumbing scores strongest on total case rate (tcr) (safer than 56% 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).

D

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.83 per 100 workers

Safer than 56% of industry peers

DART rate
D 0.86 per 100 workers

Safer than 54% 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

−1.4

2018→2022

O'Connor Plumbing injury rate improved

O'Connor Plumbing's TCR fell 1.4 from 3.1 in 2018 to 1.7 in 2022. Peak filing year was 2021 at 4.6 TCR. In 2022, DART was 0.3× this establishment's average TCR (severity share of cases).

2018=3.1 · 2019=2.6 · 2020=2.1 · 2021=4.6 · 2022=1.7

OSHA ITA Form 300A scorecard

Establishment book 238220 · Germantown, MD ABOVE-IND · MID

Grade C · TCR 2.8 · 101% of ind

  • DART 0.9 DART
  • RANK #64/121
  • PHOTO 0B61 - NORTH JERSEY …
  • BOOK 5y book
  • INJ 17 inj
  • SIZE ~108 FTE

Nearest TCR peer: 0B61 - NORTH JERSEY FIRE (0.0 TCR gap)

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

O'Connor Plumbing in the TCR neighbourhood

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

TCR

What this shows O'Connor Plumbing averages 2.8 TCR (101% of the Plumbers BLS benchmark).

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

O'Connor Plumbing TCR series: 2018=3.1 · 2019=2.6 · 2020=2.1 · 2021=4.6 · 2022=1.7 · BLS 2.8

Where O'Connor Plumbing falls in its industry

5,793 Plumbers establishments

Safer than 56% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Maryland alone (the establishments it most directly competes with for workers and contracts): ranked #64 safest of 121 Plumbers employers in Maryland.

O'Connor Plumbing (108 employees, TCR 2.8) 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 O'Connor Plumbing
O'Connor Plumbing (108 employees, TCR 2.8) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

O'Connor Plumbing has more employees than the Plumbers 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
2022 1.7 0.9 2 0 0
2021 4.6 4.6 5 0 0
2020 2.1 1.4 3 0 0
2019 2.6 2.6 3 0 0
2018 3.1 2.4 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MD · Germantown

5,793 Plumbers employers nationwide with a credible TCR · 7,213 rated employers in Maryland with headcount on file · 55 employers in Germantown, MD · 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 0B61 - NORTH JERSEY FIRE 2.8 TCR
NAICS-TCR AT Mechanical LLC 2.8 TCR
NAICS-TCR Comfort Systems USA - Bowling Green 2.8 TCR
NAICS-TCR OHCOL-Columbus Corp. Dealership 2.8 TCR
STATE-SIZE Headquarters Building 108 FTE
STATE-SIZE DPR Construction - Maryland 108 FTE
STATE-SIZE Lighting Maintenance Inc 108 FTE
STATE-SIZE Accurate Insulation Upper Marlboro 108 FTE
CITY-NEAR Hughes Network Systems, LLC. 1,115 FTE
CITY-NEAR Holy Cross Hospital-Germantown 813 FTE
CITY-NEAR Holy Cross Germantown Hospital-HCH-MD 775 FTE
CITY-NEAR WM 2357 520 FTE
NAT-TCR Sumter 2.8 TCR
NAT-TCR BICSI 2.8 TCR
NAT-TCR Tidewater Transit-Cowpens 2.8 TCR
NAT-TCR Reiss Industries, LLC 2.8 TCR
NAT-SIZE Stop & Shop 102616 108 FTE
NAT-SIZE The Children's Home of Kingston 108 FTE
NAT-SIZE Grantsbrook Nursing & Rehabilitation 108 FTE
NAT-SIZE California Service L.L.C. 108 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: 2022, 2021, 2020, 2019, 2018. 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.