Electrical work · California

Semper Solaris Construction, Inc.

El Cajon, CA · ~121 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
22.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Semper Solaris Construction, Inc. runs at 787% of its industry's injury rate - far more dangerous than the typical Electrical work workplace, earning a grade F.

Semper Solaris Construction, Inc.: 22.0 TCR = 787% of Electrical work BLS 2.8 · 3y Form 300A (see methodology below)

Semper Solaris Construction, Inc. safety composite

Semper Solaris Construction, Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 0%), 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).

F

13/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 22.03 per 100 workers

Safer than 0% of industry peers

DART rate
F 29.34 per 100 workers

Safer than 0% 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

Semper Solaris Construction, Inc.: 4.3 → 35.9 TCR

Peak year 2024 @ 35.9 TCR · DART/TCR 1.33× in 2024

Semper Solaris Construction, Inc.'s TCR rose 31.6 from 4.3 in 2018 to 35.9 in 2024. In 2024, DART was 1.33× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238210 · El Cajon, CA ABOVE-IND · MID

Grade F · TCR 22.0 · 787% of ind

  • DART 29.3 DART
  • RANK #546/548
  • PHOTO Granite State Solar
  • BOOK 3y book
  • INJ 38 inj
  • SIZE ~121 FTE

Nearest TCR peer: Granite State Solar (0.2 TCR gap)

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

Semper Solaris Construction, Inc. in the TCR neighbourhood

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

TCR

What this shows Semper Solaris Construction, Inc. averages 22.0 TCR (787% of the Electrical work BLS benchmark).

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

Semper Solaris Construction, Inc. TCR series: 2018=4.3 · 2023=25.9 · 2024=35.9 · BLS 2.8

Where Semper Solaris Construction, Inc. falls in its industry

4,550 Electrical work establishments

Safer than 0% 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 #546 safest of 548 Electrical work employers in California.

Semper Solaris Construction, Inc. (121 employees, TCR 22.0) 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 0510152025 Average employees Total Case Rate Semper Solaris Construction, Inc.
Semper Solaris Construction, Inc. (121 employees, TCR 22.0) among 29 same-industry peers, split at the industry median of 63 employees and a TCR of 2.5

Semper Solaris Construction, Inc. has more employees than the Electrical work median and a higher 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 35.9 29.3 11 0 0
2023 25.9 13.0 16 0 0
2018 4.3 4.3 11 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238210 · CA · El Cajon

4,550 Electrical work employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 236 employers in El Cajon, 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 Granite State Solar 21.9 TCR
NAICS-TCR RAIDEN ELECTRIC, LLC. 22.5 TCR
NAICS-TCR Via Satellite Inc 21.3 TCR
NAICS-TCR Control Smart Lighting LLC 22.9 TCR
STATE-SIZE Naumann Ranch 121 FTE
STATE-SIZE Illume Agriculture, LLC 121 FTE
STATE-SIZE Village Nurseries Miramar Yard 121 FTE
STATE-SIZE Collier Road Complex 121 FTE
CITY-NEAR SOUTHERN REGION : SDU 1,176 FTE
CITY-NEAR California Department of Transportation Facility 370 1,148 FTE
CITY-NEAR GKN Aerospace Chem-tronics 1,059 FTE
CITY-NEAR GKN Aerospace Chem Tronics 938 FTE
NAT-TCR Flint Cliffs Manufacturing 22.0 TCR
NAT-TCR St Marys Foundry 22.0 TCR
NAT-TCR Kre-Bsl Husky Drum Hill Operation LLC 22.0 TCR
NAT-TCR 01-Denton 22.0 TCR
NAT-SIZE El Rio Grande Latin Market #8 121 FTE
NAT-SIZE The Benson Hotel 121 FTE
NAT-SIZE Roanoke Plant 121 FTE
NAT-SIZE Express One Logistics, Inc.-Dc 121 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, 2018. 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.