Discount Department Stores · California

2179 - Diamond Bar

Diamond Bar, CA · ~224 workers · 5 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
7.9
Avg TCR
3.4
Industry avg
0
Fatalities
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The verdict

2179 - Diamond Bar runs at 234% of its industry's injury rate - far more dangerous than the typical Discount Department Stores workplace, earning a grade F.

2179 - Diamond Bar: 7.9 TCR = 234% of Discount Department Stores BLS 3.4 · 5y Form 300A (see methodology below)

2179 - Diamond Bar safety composite

2179 - Diamond Bar scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 17%), 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).

D

36/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 7.94 per 100 workers

Safer than 17% of industry peers

DART rate
D 1.87 per 100 workers

Safer than 47% 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

−2.1

2019→2024

2179 - Diamond Bar injury rate improved

2179 - Diamond Bar's TCR fell 2.1 from 4.0 in 2019 to 1.9 in 2024. Peak filing year was 2022 at 22.5 TCR. In 2024, DART was 0.24× this establishment's average TCR (severity share of cases).

2019=4.0 · 2021=11.3 · 2022=22.5 · 2023=0.0 · 2024=1.9

OSHA ITA Form 300A scorecard

Establishment book 452112 · Diamond Bar, CA ABOVE-IND · MID

Grade F · TCR 7.9 · 234% of ind

  • DART 1.9 DART
  • RANK #607/850
  • PHOTO 2246 - Richland Twp
  • BOOK 5y book
  • INJ 11 inj
  • SIZE ~224 FTE

Nearest TCR peer: 2246 - Richland Twp (0.0 TCR gap)

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

2179 - Diamond Bar in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows 2179 - Diamond Bar averages 7.9 TCR (234% of the Discount Department Stores BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

2179 - Diamond Bar TCR series: 2019=4 · 2021=11.3 · 2022=22.5 · 2023=0 · 2024=1.9 · BLS 3.4

Where 2179 - Diamond Bar falls in its industry

4,991 Discount Department Stores establishments

Safer than 17% of graded establishments in this industry, whose median TCR is 4.4.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #607 safest of 850 Discount Department Stores employers in California.

2179 - Diamond Bar (224 employees, TCR 7.9) among 29 same-industry peers, split at the industry median of 99 employees and a TCR of 4.4 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300400 051015 Average employees Total Case Rate 2179 - Diamond Bar
2179 - Diamond Bar (224 employees, TCR 7.9) among 29 same-industry peers, split at the industry median of 99 employees and a TCR of 4.4

2179 - Diamond Bar has more employees than the Discount Department Stores median and a higher injury rate than the industry's median TCR of 4.4. 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
2024 1.9 1.9 2 0 0
2023 0.0 0.0 0 0 0
2022 22.5 21.7 2 26 0
2021 11.3 2.3 3 12 0
2019 4.0 4.0 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

452112 · CA · Diamond Bar

4,991 Discount Department Stores employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 27 employers in Diamond Bar, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR 2246 - Richland Twp 7.9 TCR
NAICS-TCR 2412 - Hawaii-Kona 7.9 TCR
NAICS-TCR Shopko Hometown #543 (Wolf Point, MT) 7.9 TCR
NAICS-TCR 0831 - Scottsbluff 8.0 TCR
STATE-SIZE TC Construction Company, Inc. 224 FTE
STATE-SIZE Veteran Pipeline Construction 224 FTE
STATE-SIZE 1697_3366 224 FTE
STATE-SIZE Pacific Production Plumbing Riverside 224 FTE
CITY-NEAR California Department of Transportation Facility 1 2,621 FTE
CITY-NEAR Niagara Bottling, LLC - Corporate 1,424 FTE
CITY-NEAR Ono-CORP 961 FTE
CITY-NEAR South Coast Air Quality Management District 798 FTE
NAT-TCR 2246 - Richland Twp 7.9 TCR
NAT-TCR 2412 - Hawaii-Kona 7.9 TCR
NAT-TCR Montana Fabrication Works, LLC 7.9 TCR
NAT-TCR Wheatland Tube - Warren, OH 7.9 TCR
NAT-SIZE 1892 - Raleigh Central 224 FTE
NAT-SIZE 2785 - Holly Springs 224 FTE
NAT-SIZE 1227 - Concord 224 FTE
NAT-SIZE 1404 - Smithfield 224 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, 2019. 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.