Employer · California

Diamond Bar, CA

Diamond Bar, CA · ~130 workers · 4 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.2
Avg TCR
2.2
Industry avg
0
Fatalities
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The verdict

Diamond Bar, CA runs at 9% of its industry's injury rate - far safer than the typical industry workplace, earning a grade A.

Diamond Bar, CA: 0.2 TCR = 9% of industry BLS 2.2 · 4y Form 300A (see methodology below)

Diamond Bar, CA safety composite

Diamond Bar, CA scores strongest on total case rate (tcr) (safer than 99% of same-industry peers) and weakest on fatalities (safer than 50%), 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).

B

78/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0.19 per 100 workers

Safer than 99% of industry peers

DART rate
B 0 per 100 workers

Safer than 75% 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%).

Diamond Bar, CA held a steady TCR band

Diamond Bar, CA's TCR held near 0.0 from 0.0 in 2016 to 0.0 in 2019. Peak filing year was 2018 at 0.8 TCR. In 2019, DART was 0× this establishment's average TCR (severity share of cases).

2016=0.0 · 2017=0.0 · 2018=0.8 · 2019=0.0

OSHA ITA Form 300A scorecard

Establishment book 423610 · Diamond Bar, CA AT/BELOW-IND · MID

Grade A · TCR 0.2 · 9% of ind

  • DART 0.0 DART
  • RANK #1/134
  • PHOTO Service Center Opera…
  • BOOK 4y book
  • INJ 1 inj
  • SIZE ~130 FTE

Nearest TCR peer: Service Center Operations : 0G10 (0.0 TCR gap)

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

Diamond Bar, CA in the TCR neighbourhood

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

TCR

What this shows Diamond Bar, CA averages 0.2 TCR (9% of the industry BLS benchmark).

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

Diamond Bar, CA TCR series: 2016=0 · 2017=0 · 2018=0.8 · 2019=0 · BLS 2.2

Where Diamond Bar, CA falls in its industry

1,190 industry establishments

Safer than 99% of graded establishments in this industry, whose median TCR is 2.4.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #1 safest of 134 industry employers in California.

Diamond Bar, CA (130 employees, TCR 0.2) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 2.4 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 050100150200250 05101520 Average employees Total Case Rate Diamond Bar, CA
Diamond Bar, CA (130 employees, TCR 0.2) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 2.4

Diamond Bar, CA has more employees than the industry median and a lower injury rate than the industry's median TCR of 2.4. 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
2019 0.0 0.0 0 0 0
2018 0.8 0.8 1 0 0
2017 0.0 0.0 0 0 0
2016 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

423610 · CA · Diamond Bar

1,190 industry 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 Service Center Operations : 0G10 0.2 TCR
NAICS-TCR AmeriMex 0.2 TCR
NAICS-TCR Corporate - Centerpoint, MO 0.2 TCR
NAICS-TCR Florham Park 0.2 TCR
STATE-SIZE TRCC, Inc. 130 FTE
STATE-SIZE Saticoy Lemon Association - Santa Paula 130 FTE
STATE-SIZE Sierra Land and Cattle Co LLC 130 FTE
STATE-SIZE MODESTO SERVICE CENTER 130 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 CS Wholesale Grocers : Mauldin, SC (FDC) 0.2 TCR
NAT-TCR Amazonas Administration 0.2 TCR
NAT-TCR Valero Energy Partners LP 0.2 TCR
NAT-TCR Nalco Champion - Corsicana 0.2 TCR
NAT-SIZE Buffalo Grove Facility 130 FTE
NAT-SIZE El Rio Grande Latin Market #5 130 FTE
NAT-SIZE Fair Oaks Farms, East Plant 130 FTE
NAT-SIZE CML Security LLC 130 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, 2016. 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.