Utility line (i.e., communication, electric power), construction · California

John Griffin Construction, Inc,

Corona, CA · ~29 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
19.8
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

John Griffin Construction, Inc, runs at 709% of its industry's injury rate - far more dangerous than the typical Utility line (i.e., communication, electric power), construction workplace, earning a grade F.

John Griffin Construction, Inc,: 19.8 TCR = 709% of Utility line (i.e., communication, electric power), construction BLS 2.8 · 2y Form 300A (see methodology below)

John Griffin Construction, Inc, safety composite

John Griffin Construction, Inc, scores strongest on fatalities (safer than 52% 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

14/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 19.84 per 100 workers

Safer than 0% of industry peers

DART rate
F 9.09 per 100 workers

Safer than 4% of industry peers

Fatalities
D 0

Safer than 52% 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

−21.5

2019→2020

John Griffin Construction, Inc, injury rate improved

John Griffin Construction, Inc,'s TCR fell 21.5 from 30.6 in 2019 to 9.1 in 2020. Peak filing year was 2019 at 30.6 TCR. In 2020, DART was 0.46× this establishment's average TCR (severity share of cases).

2019=30.6 · 2020=9.1

OSHA ITA Form 300A scorecard

Establishment book 237130 · Corona, CA ABOVE-IND · SMALL

Grade F · TCR 19.8 · 709% of ind

  • DART 9.1 DART
  • RANK #147/147
  • PHOTO Sellenriek Energy Ki…
  • BOOK 2y book
  • INJ 10 inj
  • SIZE ~29 FTE

Nearest TCR peer: Sellenriek Energy Kingdom City (0.3 TCR gap)

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

John Griffin Construction, Inc, in the TCR neighbourhood

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

TCR

What this shows John Griffin Construction, Inc, averages 19.8 TCR (709% of the Utility line (i.e., communication, electric power), construction BLS benchmark).

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

John Griffin Construction, Inc, TCR series: 2019=30.6 · 2020=9.1 · BLS 2.8

Where John Griffin Construction, Inc, falls in its industry

1,605 Utility line (i.e., communicat establishments

Safer than 0% of graded establishments in this industry, whose median TCR is 2.0.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #147 safest of 147 Utility line (i.e., communicat employers in California.

John Griffin Construction, Inc, (29 employees, TCR 19.8) among 29 same-industry peers, split at the industry median of 74 employees and a TCR of 2.0 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 0100200300400500 0510152025 Average employees Total Case Rate John Griffin Construction, Inc,
John Griffin Construction, Inc, (29 employees, TCR 19.8) among 29 same-industry peers, split at the industry median of 74 employees and a TCR of 2.0

John Griffin Construction, Inc, has fewer employees than the Utility line (i.e., communication, elect median and a higher injury rate than the industry's median TCR of 2.0. 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
2020 9.1 9.1 3 0 0
2019 30.6 8.7 7 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237130 · CA · Corona

1,605 Utility line (i.e., communication, electric power), construction 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 Sellenriek Energy Kingdom City 20.1 TCR
NAICS-TCR Headquarters 19.1 TCR
NAICS-TCR Perham, MN (AEIS) 18.8 TCR
NAICS-TCR SOUTHERN INSTALLATIONS, INC. 18.7 TCR
STATE-SIZE Sean V. Doherty Farms 29 FTE
STATE-SIZE Blanco Farms, LLC 29 FTE
STATE-SIZE CONSTRUCTION SUPPORT SHOP 29 FTE
STATE-SIZE Cottonwood Farms 29 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 Chili Day Services 19.8 TCR
NAT-TCR MCI - Provisioning 19.8 TCR
NAT-TCR Sodexo at Lhp Bay Transport 19.8 TCR
NAT-TCR Northwestern Healthcare Center 19.8 TCR
NAT-SIZE Arbor - Grayslake Cccsd 46 29 FTE
NAT-SIZE Arbor - Troy Comm Cons Elementary Sd 30-C 29 FTE
NAT-SIZE CFE Rock Valley 29 FTE
NAT-SIZE Morningside of Gallatin 29 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: 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.