Oil refinery construction · California

Sonnikson and Stordahl Construction

Martinez, CA · ~83 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
0.0
Avg TCR
2.8
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Sonnikson and Stordahl Construction runs at 0% of its industry's injury rate - about level with the typical Oil refinery construction workplace, earning a grade C.

Sonnikson and Stordahl Construction: 0.0 TCR = 0% of Oil refinery construction BLS 2.8 · 3y Form 300A (see methodology below)

Sonnikson and Stordahl Construction safety composite

Sonnikson and Stordahl Construction scores strongest on total case rate (tcr) (safer than 100% of same-industry peers) and weakest on fatalities (safer than 52%), 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).

B

78/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0 per 100 workers

Safer than 100% of industry peers

DART rate
C 0 per 100 workers

Safer than 70% 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%).

Sonnikson and Stordahl Construction held a steady TCR band

Sonnikson and Stordahl Construction's TCR held near 0.0 from 0.0 in 2021 to 0.0 in 2023. Peak filing year was 2021 at 0.0 TCR.

2021=0.0 · 2022=0.0 · 2023=0.0

OSHA ITA Form 300A scorecard

Establishment book 237120 · Martinez, CA AT/BELOW-IND · SMALL

Grade C · TCR 0.0 · 0% of ind

  • DART 0.0 DART
  • RANK #0/45
  • PHOTO NTACT CONSTRUCTORS, …
  • BOOK 3y book
  • INJ 0 inj
  • SIZE ~83 FTE

Nearest TCR peer: NTACT CONSTRUCTORS, LTD. (0.0 TCR gap)

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

Sonnikson and Stordahl Construction in the TCR neighbourhood

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

TCR

What this shows Sonnikson and Stordahl Construction averages 0.0 TCR (0% of the Oil refinery construction BLS benchmark).

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

Sonnikson and Stordahl Construction TCR series: 2021=0 · 2022=0 · 2023=0 · BLS 2.8

Where Sonnikson and Stordahl Construction falls in its industry

809 Oil refinery construction establishments

Safer than 100% of graded establishments in this industry, whose median TCR is 0.7.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #0 safest of 45 Oil refinery construction employers in California.

Sonnikson and Stordahl Construction (83 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 137 employees and a TCR of 0.7 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 01,0002,0003,0004,000 01234 Average employees Total Case Rate Sonnikson and Stordahl Construction
Sonnikson and Stordahl Construction (83 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 137 employees and a TCR of 0.7

Sonnikson and Stordahl Construction has fewer employees than the Oil refinery construction median and a lower injury rate than the industry's median TCR of 0.7. 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
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237120 · CA · Martinez

809 Oil refinery construction employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 72 employers in Martinez, 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 NTACT CONSTRUCTORS, LTD. 0.0 TCR
NAICS-TCR Performance Contractors, Inc. - Exxon Baytown 0.0 TCR
NAICS-TCR 105128 - P66 Rodeo Renewed: PTU/FRU BB 0.0 TCR
NAICS-TCR Bluewater Constructors, Inc. 0.0 TCR
STATE-SIZE Sunny Slope Trees 83 FTE
STATE-SIZE Stone Land Co. (Grangeville) 83 FTE
STATE-SIZE Stone Land Co. (Stratford Shop) 83 FTE
STATE-SIZE Stone Land Co. (Lemoore Shop) 83 FTE
CITY-NEAR California Department of Transportation Facility 58 2,508 FTE
CITY-NEAR Contra Costa Regional Medical Center 1,529 FTE
CITY-NEAR Shell Martinez Refinery 740 FTE
CITY-NEAR Contra Costa Electric, Inc. 619 FTE
NAT-TCR Kinship Pointe Seward 0.0 TCR
NAT-TCR Chicago Corporate 0.0 TCR
NAT-TCR Carbro Constructors Corp Main 0.0 TCR
NAT-TCR Lawrenceburg 0.0 TCR
NAT-SIZE DoubleTree by Hilton Chicago-Alsip 83 FTE
NAT-SIZE Manufacturers Assistance Group 83 FTE
NAT-SIZE NeoCoil 83 FTE
NAT-SIZE Creative Contractors inc. 83 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: 2023, 2022, 2021. 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.