Utility line (i.e., sewer, water), construction · California

Kana Subsurface Engineering

Riverside, CA · ~54 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Kana Subsurface Engineering runs at 151% of its industry's injury rate - more dangerous than the typical Utility line (i.e., sewer, water), construction workplace, earning a grade D.

Kana Subsurface Engineering: 4.2 TCR = 151% of Utility line (i.e., sewer, water), construction BLS 2.8 · 2y Form 300A (see methodology below)

Kana Subsurface Engineering safety composite

Kana Subsurface Engineering scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 9%), 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

29/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 4.24 per 100 workers

Safer than 33% of industry peers

DART rate
F 6.36 per 100 workers

Safer than 9% 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%).

Rising injury rate

Kana Subsurface Engineering: 0.0 → 8.5 TCR

Peak year 2024 @ 8.5 TCR · DART/TCR 1.5× in 2024

Kana Subsurface Engineering's TCR rose 8.5 from 0.0 in 2023 to 8.5 in 2024. In 2024, DART was 1.5× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 237110 · Riverside, CA ABOVE-IND · SMALL

Grade D · TCR 4.2 · 151% of ind

  • DART 6.4 DART
  • RANK #132/201
  • PHOTO Belden Construction …
  • BOOK 2y book
  • INJ 4 inj
  • SIZE ~54 FTE

Nearest TCR peer: Belden Construction LLC (0.0 TCR gap)

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

Kana Subsurface Engineering in the TCR neighbourhood

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

TCR

What this shows Kana Subsurface Engineering averages 4.2 TCR (151% of the Utility line (i.e., sewer, water), construction BLS benchmark).

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

Kana Subsurface Engineering TCR series: 2023=0 · 2024=8.5 · BLS 2.8

Where Kana Subsurface Engineering falls in its industry

1,614 Utility line (i.e., sewer, wat establishments

Safer than 33% of graded establishments in this industry, whose median TCR is 3.0.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #132 safest of 201 Utility line (i.e., sewer, wat employers in California.

Kana Subsurface Engineering (54 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0 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 051015 Average employees Total Case Rate Kana Subsurface Engineering
Kana Subsurface Engineering (54 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0

Kana Subsurface Engineering has more employees than the Utility line (i.e., sewer, water), const median and a higher injury rate than the industry's median TCR of 3.0. 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
2024 8.5 6.4 4 0 0
2023 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237110 · CA · Riverside

1,614 Utility line (i.e., sewer, water), construction employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 536 employers in Riverside, 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 Belden Construction LLC 4.2 TCR
NAICS-TCR 103971 - Leonard WTP Ozone Facility 4.2 TCR
NAICS-TCR W.R. Forde Associates, Inc. 4.3 TCR
NAICS-TCR Weston & Sampson Construction, Maintenance, & Repair, Inc. 4.3 TCR
STATE-SIZE Sea Mist Farms 54 FTE
STATE-SIZE Harold E. Robben, Jr. 54 FTE
STATE-SIZE Jose Maria Perez 54 FTE
STATE-SIZE Pauma Valley 54 FTE
CITY-NEAR UC Riverside 8,676 FTE
CITY-NEAR CA-21 4,525 FTE
CITY-NEAR Riverside Community Hospital 2,354 FTE
CITY-NEAR 08681351 RIVERSIDE MED CENTER 2,349 FTE
NAT-TCR Morrell Nursing Center 4.2 TCR
NAT-TCR Karnak Midwest LLC 4.2 TCR
NAT-TCR Adele Knits Inc. 4.2 TCR
NAT-TCR HILLSBORO 4.2 TCR
NAT-SIZE Preferred Electrical Contractors, Inc. 54 FTE
NAT-SIZE Derse Pittsburgh 54 FTE
NAT-SIZE Brookdale Chubbuck 54 FTE
NAT-SIZE CBSI Marshall 54 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. 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.