Electrical contractors · California

Colonial Electric Inc

Chino, CA · ~120 workers · 4 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Colonial Electric Inc runs at 80% of its industry's injury rate - safer than the typical Electrical contractors workplace, earning a grade B.

Colonial Electric Inc: 2.2 TCR = 80% of Electrical contractors BLS 2.8 · 4y Form 300A (see methodology below)

Colonial Electric Inc safety composite

Colonial Electric Inc scores strongest on dart rate (safer than 78% 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).

C

62/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 2.23 per 100 workers

Safer than 54% of industry peers

DART rate
B 0 per 100 workers

Safer than 78% 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

Colonial Electric Inc: 0.0 → 2.1 TCR

Peak year 2018 @ 4.8 TCR · DART/TCR 0× in 2021

Colonial Electric Inc's TCR rose 2.1 from 0.0 in 2017 to 2.1 in 2021. Peak filing year was 2018 at 4.8 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238210 · Chino, CA AT/BELOW-IND · MID

Grade B · TCR 2.2 · 80% of ind

  • DART 0.0 DART
  • RANK #221/548
  • PHOTO Haynes Electric
  • BOOK 4y book
  • INJ 4 inj
  • SIZE ~120 FTE

Nearest TCR peer: Haynes Electric (0.0 TCR gap)

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

Colonial Electric Inc in the TCR neighbourhood

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

TCR

What this shows Colonial Electric Inc averages 2.2 TCR (80% of the Electrical contractors BLS benchmark).

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

Colonial Electric Inc TCR series: 2017=0 · 2018=4.8 · 2019=2 · 2021=2.1 · BLS 2.8

Where Colonial Electric Inc falls in its industry

4,550 Electrical contractors establishments

Safer than 54% 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 #221 safest of 548 Electrical contractors employers in California.

Colonial Electric Inc (120 employees, TCR 2.2) 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 Colonial Electric Inc
Colonial Electric Inc (120 employees, TCR 2.2) among 29 same-industry peers, split at the industry median of 63 employees and a TCR of 2.5

Colonial Electric Inc has more employees than the Electrical contractors 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
2021 2.1 0.0 1 0 0
2019 2.0 0.0 1 0 0
2018 4.8 3.2 2 1 0
2017 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238210 · CA · Chino

4,550 Electrical contractors employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 268 employers in Chino, 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 Haynes Electric 2.2 TCR
NAICS-TCR JAH Power Services 2.2 TCR
NAICS-TCR Bergelectric Corp. OR 2.2 TCR
NAICS-TCR LINX, LLLP 2.2 TCR
STATE-SIZE Spreckels 120 FTE
STATE-SIZE VF - Healdsburg 120 FTE
STATE-SIZE Ito Brothers Inc. 120 FTE
STATE-SIZE Crown Citrus 120 FTE
CITY-NEAR 4078 2,902 FTE
CITY-NEAR 8103 2,259 FTE
CITY-NEAR WM 4078 1,732 FTE
CITY-NEAR California Institution for Men 1,680 FTE
NAT-TCR Benson Industries, Inc. 2.2 TCR
NAT-TCR Division 10 University of Rochester 2.2 TCR
NAT-TCR Unit 300 2.2 TCR
NAT-TCR MTK04 - Applied Materials, Semi Tool 2.2 TCR
NAT-SIZE BCBSNC Bldg 600 120 FTE
NAT-SIZE Integrated Turf Solutions 120 FTE
NAT-SIZE Little Sisters of the Poor Pittsburgh 120 FTE
NAT-SIZE Firesteel Healthcare 120 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: 2021, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.