Low voltage electrical work · California

Corona Office

Corona, CA · ~82 workers · 8 years of OSHA Injury Tracking Application data.

B
Good Safety Record
1.4
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Corona Office runs at 52% of its industry's injury rate - safer than the typical Low voltage electrical work workplace, earning a grade B.

Corona Office: 1.4 TCR = 52% of Low voltage electrical work BLS 2.8 · 8y Form 300A (see methodology below)

Corona Office safety composite

Corona Office scores strongest on total case rate (tcr) (safer than 70% of same-industry peers) and weakest on dart rate (safer than 43%), 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).

C

56/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.45 per 100 workers

Safer than 70% of industry peers

DART rate
D 1.09 per 100 workers

Safer than 43% 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%).

Rising injury rate

Corona Office: 0.0 → 1.1 TCR

Peak year 2019 @ 3.8 TCR · DART/TCR 0.75× in 2024

Corona Office's TCR rose 1.1 from 0.0 in 2017 to 1.1 in 2024. Peak filing year was 2019 at 3.8 TCR. In 2024, DART was 0.75× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238210 · Corona, CA AT/BELOW-IND · SMALL

Grade B · TCR 1.4 · 52% of ind

  • DART 1.1 DART
  • RANK #127/548
  • PHOTO Rancho Pacific Elect…
  • BOOK 8y book
  • INJ 9 inj
  • SIZE ~82 FTE

Nearest TCR peer: Rancho Pacific Electric, Inc. (0.0 TCR gap)

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

Corona Office in the TCR neighbourhood

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

TCR

What this shows Corona Office averages 1.4 TCR (52% of the Low voltage electrical work BLS benchmark).

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

Corona Office TCR series: 2017=0 · 2018=1.4 · 2019=3.8 · 2020=0 · 2021=1.4 · 2022=2.9 · 2023=1.1 · 2024=1.1 · BLS 2.8

Where Corona Office falls in its industry

4,550 Low voltage electrical work establishments

Safer than 70% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #127 safest of 548 Low voltage electrical work employers in California.

Corona Office (82 employees, TCR 1.4) among 29 same-industry peers, split at the industry median of 63 employees and a TCR of 2.5 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 05001,0001,500 051015 Average employees Total Case Rate Corona Office
Corona Office (82 employees, TCR 1.4) among 29 same-industry peers, split at the industry median of 63 employees and a TCR of 2.5

Corona Office has more employees than the Low voltage electrical work 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 1.1 1.1 1 0 0
2023 1.1 1.1 1 0 0
2022 2.9 2.9 2 0 0
2021 1.4 1.4 1 0 0
2020 0.0 0.0 0 0 0
2019 3.8 2.5 3 0 0
2018 1.4 1.4 1 0 0
2017 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238210 · CA · Corona

4,550 Low voltage electrical work employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 409 employers in Corona, 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 Rancho Pacific Electric, Inc. 1.4 TCR
NAICS-TCR James Babcock, Inc 1.4 TCR
NAICS-TCR Sabah International Incorporated 1.4 TCR
NAICS-TCR Ace Electric Inc. Macon 1.4 TCR
STATE-SIZE West Coast Harvesting Inc. 82 FTE
STATE-SIZE Farm 82 FTE
STATE-SIZE Wight Vineyard Management, Inc. 82 FTE
STATE-SIZE Growers Harvesting LLC 82 FTE
CITY-NEAR Monster Energy Company 2535 Anselmo Dr 2,572 FTE
CITY-NEAR Monster Energy Company 2,388 FTE
CITY-NEAR Monster Energy Company - Anselmo Dr, Corona 2,335 FTE
CITY-NEAR California Department of Transportation Facility 289 1,587 FTE
NAT-TCR Metals USA - Gregor Technologies 1.4 TCR
NAT-TCR Traffic & Parking Control Company 1.4 TCR
NAT-TCR S04163 - Woodside RDF 1.4 TCR
NAT-TCR Gallup Nm 1.4 TCR
NAT-SIZE O&M Indiana Harbor 82 FTE
NAT-SIZE Odenton 82 FTE
NAT-SIZE Park Industries Inc - 6600 building 82 FTE
NAT-SIZE Mother Hull Home, Inc 82 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, 2020, 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.