Aqueduct construction · California

Cass Construction, Inc. dba Cass Arrieta

Name: Cass Construction, Inc. dba Cass Arrieta Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

El Cajon, CA · ~191 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.5
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Cass Construction, Inc. dba Cass Arrieta runs at 88% of its industry's injury rate - about level with the typical Aqueduct construction workplace, earning a grade C.

Cass Construction, Inc. dba Cass Arrieta: 2.5 TCR = 88% of Aqueduct construction BLS 2.8 · 3y Form 300A (see methodology below)

Cass Construction, Inc. dba Cass Arrieta safety composite

Cass Construction, Inc. dba Cass Arrieta scores strongest on total case rate (tcr) (safer than 58% of same-industry peers) and weakest on dart rate (safer than 18%), 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).

43/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.45 per 100 workers

Safer than 58% of industry peers
DART rate: F 4.15 per 100 workers

Safer than 18% of industry peers
Fatalities: D 0

Safer than 52% 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

Cass Construction, Inc. dba Cass Arrieta: 0.5 → 4.7 TCR

Peak year 2019 @ 4.7 TCR · DART/TCR 1.69× in 2019

Cass Construction, Inc. dba Cass Arrieta's TCR rose 4.3 from 0.5 in 2017 to 4.7 in 2019. In 2019, DART was 1.69× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 237110 · El Cajon, CA AT/BELOW-IND · MID

Grade C · TCR 2.5 · 88% of ind

DART 4.2 DART
RANK #85/201
PHOTO R & B Contracting, I…
BOOK 3y book
INJ 13 inj
SIZE ~191 FTE

Nearest TCR peer: R & B Contracting, Inc. (0.0 TCR gap)

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

This site

2.5
R & B Contract

2.5
ADS LLC

2.5
Felix Construc

2.5
Main Office

2.5

What this shows Cass Construction, Inc. dba Cass Arrieta averages 2.5 TCR (88% of the Aqueduct construction BLS benchmark).

Cass Construction, Inc. dba Cass Arrieta TCR series: 2017=0.5 · 2018=2.1 · 2019=4.7 · BLS 2.8

Where Cass Construction, Inc. dba Cass Arrieta falls in its industry

1,614 Aqueduct construction establishments

Safer than 58% of graded establishments in this industry, whose median TCR is 3.0.

Grade C

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #85 safest of 201 Aqueduct construction employers in California.

Cass Construction, Inc. dba Cass Arrieta (191 employees, TCR 2.5) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0

Cass Construction, Inc. dba Cass Arrieta has more employees than the Aqueduct construction median and a lower 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
2019	4.7	4.2	8
2018	2.1	2.1	4
2017	0.5	0.5	1

OSHA ITA peer cross-reference

Establishment peer ledger

237110 · CA · El Cajon

1,614 Aqueduct construction employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 236 employers in El Cajon, 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	R & B Contracting, Inc.	JACKSONVILLE, FL	2.5 TCR
NAICS-TCR	ADS LLC	HUNTSVILLE, AL	2.5 TCR
NAICS-TCR	Felix Construction Company	COOLIDGE, AZ	2.5 TCR
NAICS-TCR	Main Office	PIPERTON, TN	2.5 TCR
STATE-SIZE	Wileman Bros. & Elliott, Inc.	CUTLER	191 FTE
STATE-SIZE	Creekside Farms, Inc.	WATSONVILLE	191 FTE
STATE-SIZE	WesPak, Inc.	DINUBA	191 FTE
STATE-SIZE	Century Park Annex - Bld: 6792 - 01	SAN DIEGO	191 FTE
CITY-NEAR	SOUTHERN REGION : SDU	El Cajon	1,176 FTE
CITY-NEAR	California Department of Transportation Facility 370	El Cajon	1,148 FTE
CITY-NEAR	GKN Aerospace Chem-tronics	El Cajon	1,059 FTE
CITY-NEAR	GKN Aerospace Chem Tronics	El Cajon	938 FTE
NAT-TCR	12 - Kansas City Front. Street Plant	Kansas City, MO	2.5 TCR
NAT-TCR	Perry Memorial Hospital	Princeton, IL	2.5 TCR
NAT-TCR	30486-Capstone Mclane Carolina	Battleboro, NC	2.5 TCR
NAT-TCR	4054-Abs 0016 0212	Las Vegas, NV	2.5 TCR
NAT-SIZE	Conesville Plant	Conesville, OH	191 FTE
NAT-SIZE	Philips Fall River	Fall River, MA	191 FTE
NAT-SIZE	McRae Footwear Hwy 109 N	Mount Gilead, NC	191 FTE
NAT-SIZE	300 Commercial St	Malden, MA	191 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: 2019, 2018, 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.