Plumbing contractors · California

Custom Plumbing of No. CA., Inc.

Name: Custom Plumbing of No. CA., Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Santa Rosa, CA · ~28 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · September 26, 2026

C
Average Safety Record: 2.3
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Custom Plumbing of No. CA., Inc. runs at 81% of its industry's injury rate - about level with the typical Plumbing contractors workplace, earning a grade C.

Custom Plumbing of No. CA., Inc.: 2.3 TCR = 81% of Plumbing contractors BLS 2.8 · 2y Form 300A (see methodology below)

Custom Plumbing of No. CA., Inc. safety composite

Custom Plumbing of No. CA., 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).

66/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.28 per 100 workers

Safer than 64% 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

−4.6

2018→2021

Custom Plumbing of No. CA., Inc. injury rate improved

Custom Plumbing of No. CA., Inc.'s TCR fell 4.6 from 4.6 in 2018 to 0.0 in 2021. Peak filing year was 2018 at 4.6 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2018=4.6 · 2021=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Santa Rosa, CA AT/BELOW-IND · SMALL

Grade C · TCR 2.3 · 81% of ind

DART 0.0 DART
RANK #179/594
PHOTO De Bella Mechanical …
BOOK 2y book
INJ 1 inj
SIZE ~28 FTE

Nearest TCR peer: De Bella Mechanical Inc. (0.0 TCR gap)

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

This site

2.3
De Bella Mecha

2.3
Lo-Temp Engine

2.3
Calumet City,

2.3
Gartner Refrig

2.3

What this shows Custom Plumbing of No. CA., Inc. averages 2.3 TCR (81% of the Plumbing contractors BLS benchmark).

Custom Plumbing of No. CA., Inc. TCR series: 2018=4.6 · 2021=0 · BLS 2.8

Where Custom Plumbing of No. CA., Inc. falls in its industry

5,793 Plumbing contractors establishments

Safer than 64% of graded establishments in this industry, whose median TCR is 3.3.

Grade C

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #179 safest of 594 Plumbing contractors employers in California.

Custom Plumbing of No. CA., Inc. (28 employees, TCR 2.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Custom Plumbing of No. CA., Inc. 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	Illnesses	Fatalities
2021	0.0	0.0	0	0	0
2018	4.6	4.6	1	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · CA · Santa Rosa

5,793 Plumbing contractors employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 344 employers in Santa Rosa, CA · 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	De Bella Mechanical Inc.	SANTA CLARA, CA	2.3 TCR
NAICS-TCR	Lo-Temp Engineering, Inc.	WINTER GARDEN, FL	2.3 TCR
NAICS-TCR	Calumet City, IL - South Bend, IN HVAC	CALUMET CITY, IL	2.3 TCR
NAICS-TCR	Gartner Refrigeration	PLYMOUTH, MN	2.3 TCR
STATE-SIZE	Garage Doors Unlimited, Inc.	POWAY	28 FTE
STATE-SIZE	1052	BELLFLOWER	28 FTE
STATE-SIZE	1256	SANTA ANA	28 FTE
STATE-SIZE	The Clift Hotel	SAN FRANCISCO	28 FTE
CITY-NEAR	California Department of Transportation Facility 543	Santa Rosa	2,891 FTE
CITY-NEAR	2032-02121251	Santa Rosa	2,209 FTE
CITY-NEAR	2004-00001480	Santa Rosa	1,970 FTE
CITY-NEAR	CA720 SANTA ROSA MEMORIAL HOSPITAL HR	Santa Rosa	1,806 FTE
NAT-TCR	Calvert 4416	Owings, MD	2.3 TCR
NAT-TCR	Calumet City, IL - South Bend, IN HVAC	Calumet City, IL	2.3 TCR
NAT-TCR	NWR Services	Charlotte, NC	2.3 TCR
NAT-TCR	Henry Company Fernley	Fernley, NV	2.3 TCR
NAT-SIZE	Town Center at Boca Raton	Boca Raton, FL	28 FTE
NAT-SIZE	Alder Hotel Uptown	New Orleans, LA	28 FTE
NAT-SIZE	Wisconsin Bldg - Onalaska	Onalaska, WI	28 FTE
NAT-SIZE	Head Start-South Point	South Point, OH	28 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, 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.