Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers · California

6340-Onesource-4 & 36

San Diego, CA · ~30 workers · 2 years of OSHA Injury Tracking Application data.

B
Good Safety Record
1.6
Avg TCR
2.2
Industry avg
0
Fatalities
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The verdict

6340-Onesource-4 & 36 runs at 75% of its industry's injury rate - safer than the typical Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers workplace, earning a grade B.

6340-Onesource-4 & 36: 1.6 TCR = 75% of Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers BLS 2.2 · 2y Form 300A (see methodology below)

6340-Onesource-4 & 36 safety composite

6340-Onesource-4 & 36 scores strongest on dart rate (safer than 75% 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).

C

65/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.64 per 100 workers

Safer than 65% 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%).

TCR Δ

−3.3

2016→2017

6340-Onesource-4 & 36 injury rate improved

6340-Onesource-4 & 36's TCR fell 3.3 from 3.3 in 2016 to 0.0 in 2017. Peak filing year was 2016 at 3.3 TCR. In 2017, DART was 0× this establishment's average TCR (severity share of cases).

2016=3.3 · 2017=0.0

OSHA ITA Form 300A scorecard

Establishment book 423610 · San Diego, CA AT/BELOW-IND · SMALL

Grade B · TCR 1.6 · 75% of ind

  • DART 0.0 DART
  • RANK #30/134
  • PHOTO 168 - WEST COLUMBIA,…
  • BOOK 2y book
  • INJ 1 inj
  • SIZE ~30 FTE

Nearest TCR peer: 168 - WEST COLUMBIA, SC (0.0 TCR gap)

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6340-Onesource-4 & 36 in the TCR neighbourhood

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

TCR

What this shows 6340-Onesource-4 & 36 averages 1.6 TCR (75% of the Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers BLS benchmark).

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

6340-Onesource-4 & 36 TCR series: 2016=3.3 · 2017=0 · BLS 2.2

Where 6340-Onesource-4 & 36 falls in its industry

1,190 Electrical Apparatus and Equip establishments

Safer than 65% 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 #30 safest of 134 Electrical Apparatus and Equip employers in California.

6340-Onesource-4 & 36 (30 employees, TCR 1.6) 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 6340-Onesource-4 & 36
6340-Onesource-4 & 36 (30 employees, TCR 1.6) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 2.4

6340-Onesource-4 & 36 has fewer employees than the Electrical Apparatus and Equipment, Wiri 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
2017 0.0 0.0 0 0 0
2016 3.3 3.3 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

423610 · CA · San Diego

1,190 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 1,979 employers in San Diego, 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 168 - WEST COLUMBIA, SC 1.6 TCR
NAICS-TCR E & H ELECTRIC SUPPLY (PC4382) 1.6 TCR
NAICS-TCR US - Branch Network : 0385 1.6 TCR
NAICS-TCR CONSOLIDATED ELECTRICAL DISTRIBUTORS (PC3393) 1.6 TCR
STATE-SIZE BZNUR 30 FTE
STATE-SIZE 1780 San Juan Rd. 30 FTE
STATE-SIZE Charter Oaks 30 FTE
STATE-SIZE Greenfields Turf, Inc. 30 FTE
CITY-NEAR UC San Diego Health 9,310 FTE
CITY-NEAR General Atomics 8,108 FTE
CITY-NEAR Health Human Services Agency 6,080 FTE
CITY-NEAR National University 4,955 FTE
NAT-TCR Manheim Keystone Pennsylvania 1.6 TCR
NAT-TCR USS Irvin Works 1.6 TCR
NAT-TCR Childress Klein Atlanta Galleria 1.6 TCR
NAT-TCR Fifth Ave 1.6 TCR
NAT-SIZE Rai Mx Dca 30 FTE
NAT-SIZE 0001 - Lexington, Ky 30 FTE
NAT-SIZE Erik Builders, Inc. 30 FTE
NAT-SIZE Bellowstech 30 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: 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.