Employer · California
South Coast Air Quality Management District
Diamond Bar, CA · ~798 workers · 8 years of OSHA Injury Tracking Application data.
- A
- Excellent Safety Record
- 1.4
- Avg TCR
- 3.2
- Industry avg
- 0
- Fatalities
The verdict
South Coast Air Quality Management District runs at 44% of its industry's injury rate - far safer than the typical industry workplace, earning a grade A.
South Coast Air Quality Management District: 1.4 TCR = 44% of industry BLS 3.2 · 8y Form 300A (see methodology below)
South Coast Air Quality Management District safety composite
South Coast Air Quality Management District scores strongest on total case rate (tcr) (safer than 65% of same-industry peers) and weakest on fatalities (safer than 51%), 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).
59/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- C 1.41 per 100 workers
Safer than 65% of industry peers
- DART rate
- C 0.6 per 100 workers
Safer than 59% of industry peers
- Fatalities
- D 0
Safer than 51% 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
−1.1
2017→2024
South Coast Air Quality Management District injury rate improved
South Coast Air Quality Management District's TCR fell 1.1 from 2.3 in 2017 to 1.2 in 2024. Peak filing year was 2017 at 2.3 TCR. In 2024, DART was 0.43× this establishment's average TCR (severity share of cases).
2017=2.3 · 2018=2.3 · 2019=2.1 · 2020=0.9 · 2021=0.7 · 2022=0.8 · 2023=0.9 · 2024=1.2
OSHA ITA Form 300A scorecard
Establishment book 924110 · Diamond Bar, CA AT/BELOW-IND · MID
Grade A · TCR 1.4 · 44% of ind
- DART 0.6 DART
- RANK #22/56
- PHOTO Division of Flood Ma…
- BOOK 8y book
- INJ 78 inj
- SIZE ~798 FTE
Nearest TCR peer: Division of Flood Management (0.0 TCR gap)
Read with this employer → · Industry book → · California employers → · Look up another →
South Coast Air Quality Management District in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- Maricopa Count
Maricopa County - Air Quality (850)
1.5 TCR
- Division of Re
Division of Regional Assistance - Southern Region Office - SRO
1.5 TCR
- This site
South Coast Air Quality Management District
1.4 TCR
- Division of Fl
Division of Flood Management
1.4 TCR
- Division of Re
Division of Regional Assistance - North Central Region Office - NCRO
1.3 TCR
What this shows South Coast Air Quality Management District averages 1.4 TCR (44% of the industry BLS benchmark).
South Coast Air Quality Management District TCR series: 2017=2.3 · 2018=2.3 · 2019=2.1 · 2020=0.9 · 2021=0.7 · 2022=0.8 · 2023=0.9 · 2024=1.2 · BLS 3.2
Where South Coast Air Quality Management District falls in its industry
131 industry establishmentsSafer than 65% of graded establishments in this industry, whose median TCR is 2.5.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #22 safest of 56 industry employers in California.
South Coast Air Quality Management District has more employees than the industry median and a lower injury rate than the industry's median TCR of 2.5. 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 | 1.2 | 0.6 | 9 | 1 | 0 |
| 2023 | 0.9 | 0.1 | 7 | 0 | 0 |
| 2022 | 0.8 | 0.4 | 6 | 0 | 0 |
| 2021 | 0.7 | 0.5 | 4 | 1 | 0 |
| 2020 | 0.9 | 0.7 | 7 | 0 | 0 |
| 2019 | 2.1 | 0.9 | 15 | 0 | 0 |
| 2018 | 2.3 | 0.9 | 15 | 0 | 0 |
| 2017 | 2.3 | 1.1 | 15 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
924110 · CA · Diamond Bar
131 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 | Division of Flood Management | 1.4 TCR |
| NAICS-TCR | Maricopa County - Air Quality (850) | 1.5 TCR |
| NAICS-TCR | Division of Regional Assistance - Southern Region Office - SRO | 1.5 TCR |
| NAICS-TCR | Division of Regional Assistance - North Central Region Office - NCRO | 1.3 TCR |
| STATE-SIZE | Tasteful Selections, LLC | 798 FTE |
| STATE-SIZE | SNDGCA64 - Pacific Bell Telephone Company | 798 FTE |
| STATE-SIZE | GIANT ADMIN | 798 FTE |
| STATE-SIZE | Inter-Community Hospital | 797 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 | 2179 - Diamond Bar | 224 FTE |
| NAT-TCR | Markham Inc | 1.4 TCR |
| NAT-TCR | Unlimited Services | 1.4 TCR |
| NAT-TCR | 613 Atlas Avenue, Madison, WI 53714 | 1.4 TCR |
| NAT-TCR | Armcorp Construction, Inc. | 1.4 TCR |
| NAT-SIZE | Nestle USA | 798 FTE |
| NAT-SIZE | Hubbell Power Systems - Centralia Operation | 798 FTE |
| NAT-SIZE | Pal Environmental Services | 798 FTE |
| NAT-SIZE | Mco-Flight Ops | 798 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.