Group homes, intellectual and developmental disability · California

Mercedes Diaz Homes, Inc.

Name: Mercedes Diaz Homes, Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Whittier, CA · ~227 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 6.7
Avg TCR: 3.8
Industry avg: 0
Fatalities

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The verdict

Mercedes Diaz Homes, Inc. runs at 177% of its industry's injury rate - more dangerous than the typical Group homes, intellectual and developmental disability workplace, earning a grade D.

Mercedes Diaz Homes, Inc.: 6.7 TCR = 177% of Group homes, intellectual and developmental disability BLS 3.8 · 4y Form 300A (see methodology below)

Mercedes Diaz Homes, Inc. safety composite

Mercedes Diaz Homes, Inc. scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 27%), 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).

39/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): D 6.72 per 100 workers

Safer than 43% of industry peers
DART rate: F 5.94 per 100 workers

Safer than 27% 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

Mercedes Diaz Homes, Inc.: 5.2 → 8.7 TCR

Peak year 2022 @ 12.9 TCR · DART/TCR 0.88× in 2024

Mercedes Diaz Homes, Inc.'s TCR rose 3.5 from 5.2 in 2021 to 8.7 in 2024. Peak filing year was 2022 at 12.9 TCR. In 2024, DART was 0.88× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 623210 · Whittier, CA ABOVE-IND · MID

Grade D · TCR 6.7 · 177% of ind

DART 5.9 DART
RANK #89/151
PHOTO Autism Learning Part…
BOOK 4y book
INJ 50 inj
SIZE ~227 FTE

Nearest TCR peer: Autism Learning Partners Gateway (0.0 TCR gap)

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

This site

6.7
Autism Learnin

6.7
H515-AHV-CRAWF

6.7
Josina Lott Re

6.7
6443-482943

6.7

What this shows Mercedes Diaz Homes, Inc. averages 6.7 TCR (177% of the Group homes, intellectual and developmental disability BLS benchmark).

Mercedes Diaz Homes, Inc. TCR series: 2021=5.2 · 2022=12.9 · 2023=0 · 2024=8.7 · BLS 3.8

Where Mercedes Diaz Homes, Inc. falls in its industry

2,261 Group homes, intellectual and establishments

Safer than 43% of graded establishments in this industry, whose median TCR is 5.8.

Grade D

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #89 safest of 151 Group homes, intellectual and employers in California.

Mercedes Diaz Homes, Inc. (227 employees, TCR 6.7) among 29 same-industry peers, split at the industry median of 65 employees and a TCR of 5.8

Mercedes Diaz Homes, Inc. has more employees than the Group homes, intellectual and developmen median and a higher injury rate than the industry's median TCR of 5.8. 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
2024	8.7	5.9	22	0
2023	0.0	0.0	0	0
2022	12.9	12.9	19	1
2021	5.2	3.6	9	1

OSHA ITA peer cross-reference

Establishment peer ledger

623210 · CA · Whittier

2,261 Group homes, intellectual and developmental disability employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 124 employers in Whittier, 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	Autism Learning Partners Gateway	DOWNEY, CA	6.7 TCR
NAICS-TCR	H515-AHV-CRAWFORD- HV	MONTGOMERY, NY	6.7 TCR
NAICS-TCR	Josina Lott Residential and Community Services	TOLEDO, OH	6.7 TCR
NAICS-TCR	6443-482943	DAVENPORT, IA	6.7 TCR
STATE-SIZE	Channel Islands Vegetable Farms, Inc.	OXNARD	227 FTE
STATE-SIZE	Farming2	KING CITY	227 FTE
STATE-SIZE	West Pacifico FLC, Inc	PORTERVILLE	227 FTE
STATE-SIZE	Hunter	ANAHEIM	227 FTE
CITY-NEAR	PIH Health Hospital - Whittier	Whittier	3,609 FTE
CITY-NEAR	California Department of Transportation Facility 499	Whittier	2,621 FTE
CITY-NEAR	PIH Health Hospital - Downey	Whittier	1,130 FTE
CITY-NEAR	PIH Health Physicians	Whittier	819 FTE
NAT-TCR	Blue Ribbon Linen Supply, Inc.	Lewiston, ID	6.7 TCR
NAT-TCR	Landis Logistics	Reading, PA	6.7 TCR
NAT-TCR	SO Goodwill Central Point	Central Point, OR	6.7 TCR
NAT-TCR	Eye Designs, LLC	Collegeville, PA	6.7 TCR
NAT-SIZE	Pennsboro Plant	Pennsboro, WV	227 FTE
NAT-SIZE	197 - Oxford Twp	Oxford, MI	227 FTE
NAT-SIZE	211 - Rossford	Rossford, OH	227 FTE
NAT-SIZE	295 - Franklin	Franklin, IN	227 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. 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.