Furnaces, floor and wall, manufacturing · California

Williams Furnace Company

Name: Williams Furnace Company Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Colton, CA · ~178 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 5.7
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Williams Furnace Company runs at 173% of its industry's injury rate - more dangerous than the typical Furnaces, floor and wall, manufacturing workplace, earning a grade D.

Williams Furnace Company: 5.7 TCR = 173% of Furnaces, floor and wall, manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Williams Furnace Company safety composite

Williams Furnace Company scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 9%), 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).

24/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 5.72 per 100 workers

Safer than 21% of industry peers
DART rate: F 4.86 per 100 workers

Safer than 9% 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%).

TCR Δ

−1.5

2017→2023

Williams Furnace Company injury rate improved

Williams Furnace Company's TCR fell 1.5 from 6.4 in 2017 to 4.9 in 2023. Peak filing year was 2017 at 6.4 TCR. In 2023, DART was 0.85× this establishment's average TCR (severity share of cases).

2017=6.4 · 2022=5.9 · 2023=4.9

OSHA ITA Form 300A scorecard

Establishment book 333414 · Colton, CA ABOVE-IND · MID

Grade D · TCR 5.7 · 173% of ind

DART 4.9 DART
RANK #6/9
PHOTO Columbia Boiler Comp…
BOOK 3y book
INJ 33 inj
SIZE ~178 FTE

Nearest TCR peer: Columbia Boiler Company (0.0 TCR gap)

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

SOLARONICS INC

5.9
This site

5.7
Columbia Boile

5.7
RH Peterson

5.7
Glas-Col, L.L.

5.6

What this shows Williams Furnace Company averages 5.7 TCR (173% of the Furnaces, floor and wall, manufacturing BLS benchmark).

Williams Furnace Company TCR series: 2017=6.4 · 2022=5.9 · 2023=4.9 · BLS 3.3

Where Williams Furnace Company falls in its industry

117 Furnaces, floor and wall, manu establishments

Safer than 21% of graded establishments in this industry, whose median TCR is 3.0.

Grade D

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #6 safest of 9 Furnaces, floor and wall, manu employers in California.

Williams Furnace Company (178 employees, TCR 5.7) among 29 same-industry peers, split at the industry median of 97 employees and a TCR of 3.0

Williams Furnace Company has more employees than the Furnaces, floor and wall, manufacturing median and a higher injury rate than the industry's median TCR of 3.0. 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
2023	4.9	4.9	10	0
2022	5.9	5.9	13	0
2017	6.4	5.4	10	3

OSHA ITA peer cross-reference

Establishment peer ledger

333414 · CA · Colton

117 Furnaces, floor and wall, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 95 employers in Colton, 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	Columbia Boiler Company	POTTSTOWN, PA	5.7 TCR
NAICS-TCR	RH Peterson	CITY OF INDUSTRY, CA	5.7 TCR
NAICS-TCR	Glas-Col, L.L.C.	TERRE HAUTE, IN	5.6 TCR
NAICS-TCR	SOLARONICS INC	AUBURN HILLS, MI	5.9 TCR
STATE-SIZE	Greenheart Farms, Inc.	ARROYO GRANDE	178 FTE
STATE-SIZE	Grape Valley Contracting	BAKERSFIELD	178 FTE
STATE-SIZE	Marmol Radziner, An Architecture Corporation	LOS ANGELES	178 FTE
STATE-SIZE	W.E. O'Neil Construction Co. of California	EL SEGUNDO	178 FTE
CITY-NEAR	Arrowhead Regional Medical Center	Colton	1,709 FTE
CITY-NEAR	California Department of Transportation Facility 294	Colton	1,529 FTE
CITY-NEAR	California Department of Transportation Facility 287	Colton	1,342 FTE
CITY-NEAR	California Department of Transportation Facility 290	Colton	1,342 FTE
NAT-TCR	Arfos - Ft. Smith	Ft. Smith, AR	5.7 TCR
NAT-TCR	Greenville ENC	Greenville, NC	5.7 TCR
NAT-TCR	Hickory Point Christian Village	Forsyth, IL	5.7 TCR
NAT-TCR	Main Office	Davenport, IA	5.7 TCR
NAT-SIZE	Durham Location	Durham, NC	178 FTE
NAT-SIZE	OIS-Port Arthur	Port Arthur, TX	178 FTE
NAT-SIZE	Epic Enterprises, Inc.	Ayer, MA	178 FTE
NAT-SIZE	4223-M1800	Green Bay, WI	178 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: 2023, 2022, 2017. 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.