Plumbing equipment merchant wholesalers · Maryland

Thos. Somerville Co.

Upper Marlboro, MD · ~368 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.2
Avg TCR
2.2
Industry avg
0
Fatalities
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The verdict

Thos. Somerville Co. runs at 99% of its industry's injury rate - about level with the typical Plumbing equipment merchant wholesalers workplace, earning a grade C.

Thos. Somerville Co.: 2.2 TCR = 99% of Plumbing equipment merchant wholesalers BLS 2.2 · 3y Form 300A (see methodology below)

Thos. Somerville Co. safety composite

Thos. Somerville Co. scores strongest on total case rate (tcr) (safer than 68% of same-industry peers) and weakest on dart rate (safer than 48%), 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

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.17 per 100 workers

Safer than 68% of industry peers

DART rate
D 1.98 per 100 workers

Safer than 48% of industry peers

Fatalities
D 0

Safer than 50% 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%).

Rising injury rate

Thos. Somerville Co.: 1.4 → 2.8 TCR

Peak year 2024 @ 2.8 TCR · DART/TCR 0.91× in 2024

Thos. Somerville Co.'s TCR rose 1.5 from 1.4 in 2022 to 2.8 in 2024. In 2024, DART was 0.91× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 423720 · Upper Marlboro, MD AT/BELOW-IND · MID

Grade C · TCR 2.2 · 99% of ind

  • DART 2.0 DART
  • RANK #4/13
  • PHOTO 1049 HVAC - Houston
  • BOOK 3y book
  • INJ 23 inj
  • SIZE ~368 FTE

Nearest TCR peer: 1049 HVAC - Houston (0.0 TCR gap)

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Thos. Somerville Co. in the TCR neighbourhood

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

TCR

What this shows Thos. Somerville Co. averages 2.2 TCR (99% of the Plumbing equipment merchant wholesalers BLS benchmark).

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

Thos. Somerville Co. TCR series: 2022=1.4 · 2023=2.3 · 2024=2.8 · BLS 2.2

Where Thos. Somerville Co. falls in its industry

853 Plumbing equipment merchant wh establishments

Safer than 68% 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 #4 safest of 13 Plumbing equipment merchant wh employers in Maryland.

Thos. Somerville Co. (368 employees, TCR 2.2) among 29 same-industry peers, split at the industry median of 38 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 0100200300400500 051015 Average employees Total Case Rate Thos. Somerville Co.
Thos. Somerville Co. (368 employees, TCR 2.2) among 29 same-industry peers, split at the industry median of 38 employees and a TCR of 3.3

Thos. Somerville Co. has more employees than the Plumbing equipment merchant wholesalers 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 2.8 2.0 10 0 0
2023 2.3 1.4 8 0 0
2022 1.4 1.1 5 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

423720 · MD · Upper Marlboro

853 Plumbing equipment merchant wholesalers employers nationwide with a credible TCR · 7,213 rated employers in Maryland with headcount on file · 98 employers in Upper Marlboro, 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 1049 HVAC - Houston 2.2 TCR
NAICS-TCR 3004 - Mesa 2.2 TCR
NAICS-TCR WSS DENVER REGIONAL DISTRIBUTION CTR 2.2 TCR
NAICS-TCR 4220 Saguaro Trail 2.2 TCR
STATE-SIZE WM 5129 368 FTE
STATE-SIZE 97390003-660000 DPW T TRANSPORTATION 369 FTE
STATE-SIZE B47 367 FTE
STATE-SIZE Dennett Road Manor 369 FTE
CITY-NEAR Washington DC 1,045 FTE
CITY-NEAR 3888 - East Coast Return Center 447 FTE
CITY-NEAR 3881 - Upper Marlboro FDC 431 FTE
CITY-NEAR DPI Specialty Foods - Mid Atlantic 353 FTE
NAT-TCR Specialty Fabricators, LLC 2.2 TCR
NAT-TCR Hyatt Regency Tysons Corner Center 2.2 TCR
NAT-TCR Schumacher Electric Inc. 2.2 TCR
NAT-TCR Nan Ya Plastics Houston 2.2 TCR
NAT-SIZE DC39 368 FTE
NAT-SIZE Diamond Landscaping LLC. 368 FTE
NAT-SIZE Mr Greens Produce LLC - Miami 368 FTE
NAT-SIZE Criterion 368 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, 2022. 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.