Plumbing contractors · Massachusetts

Commonwealth Plumbing Corp.

Name: Commonwealth Plumbing Corp. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Rockland, MA · ~48 workers · 5 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.3
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Commonwealth Plumbing Corp. runs at 11% of its industry's injury rate - far safer than the typical Plumbing contractors workplace, earning a grade A.

Commonwealth Plumbing Corp.: 0.3 TCR = 11% of Plumbing contractors BLS 2.8 · 5y Form 300A (see methodology below)

Commonwealth Plumbing Corp. safety composite

Commonwealth Plumbing Corp. scores strongest on total case rate (tcr) (safer than 99% 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).

80/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): A 0.3 per 100 workers

Safer than 99% 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%).

Commonwealth Plumbing Corp. held a steady TCR band

Commonwealth Plumbing Corp.'s TCR held near 0.0 from 0.0 in 2020 to 0.0 in 2024. Peak filing year was 2022 at 1.5 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2020=0.0 · 2021=0.0 · 2022=1.5 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Rockland, MA AT/BELOW-IND · SMALL

Grade A · TCR 0.3 · 11% of ind

DART 0.0 DART
RANK #2/140
PHOTO United Meters, Inc.
BOOK 5y book
INJ 1 inj
SIZE ~48 FTE

Nearest TCR peer: United Meters, Inc. (0.0 TCR gap)

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This site

0.3
United Meters,

0.3
Industrial Coo

0.3
Kilgore Indust

0.3
Rubber Applica

0.3

What this shows Commonwealth Plumbing Corp. averages 0.3 TCR (11% of the Plumbing contractors BLS benchmark).

Commonwealth Plumbing Corp. TCR series: 2020=0 · 2021=0 · 2022=1.5 · 2023=0 · 2024=0 · BLS 2.8

Where Commonwealth Plumbing Corp. falls in its industry

5,793 Plumbing contractors establishments

Safer than 99% of graded establishments in this industry, whose median TCR is 3.3.

Grade A

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #2 safest of 140 Plumbing contractors employers in Massachusetts.

Commonwealth Plumbing Corp. (48 employees, TCR 0.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Commonwealth Plumbing Corp. has fewer 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
2024	0.0	0.0	0
2023	0.0	0.0	0
2022	1.5	1.5	1
2021	0.0	0.0	0
2020	0.0	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MA · Rockland

5,793 Plumbing contractors employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 30 employers in Rockland, MA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	United Meters, Inc.	MORRIS, IL	0.3 TCR
NAICS-TCR	Industrial Cooling Tower Services, Inc	BATON ROUGE, LA	0.3 TCR
NAICS-TCR	Kilgore Industries, LP	HOUSTON, TX	0.3 TCR
NAICS-TCR	Rubber Applications, Inc.	MULBERRY, FL	0.3 TCR
STATE-SIZE	Payne\|Bouchier Inc	BOSTON	48 FTE
STATE-SIZE	Rise Construction Management	BOSTON	48 FTE
STATE-SIZE	NA-US-MA-South Dennis-Western Boulevard	SOUTH DENNIS	48 FTE
STATE-SIZE	Plymouth MA	PLYMOUTH	48 FTE
CITY-NEAR	EMD Serono, Inc. Rockland	Rockland	781 FTE
CITY-NEAR	South Shore Health Home Care Division	Rockland	234 FTE
CITY-NEAR	Rockland	Rockland	196 FTE
CITY-NEAR	Heritage Restoration	Rockland	168 FTE
NAT-TCR	California Department of Transportation Facility 407	Eureka, CA	0.3 TCR
NAT-TCR	NGDS-A583	Patuxent River, MD	0.3 TCR
NAT-TCR	Yusen Logistics (Americas) Inc - Laredo	Laredo, TX	0.3 TCR
NAT-TCR	The Walt Disney Company-Burbank	Burbank, CA	0.3 TCR
NAT-SIZE	Pioneer Hi-Bred International Rushville	Rushville, IN	48 FTE
NAT-SIZE	Assemblers Precast & Steel Services Inc	Whitmore Lake, MI	48 FTE
NAT-SIZE	Creech Logistics, INC	Troy, MO	48 FTE
NAT-SIZE	City of Burnsville - Fire	Burnsville, MN	48 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, 2021, 2020. 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.