Truck trailer manufacturing · California

West-Mark Manufacturing

Atwater, CA · ~132 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

West-Mark Manufacturing runs at 94% of its industry's injury rate - about level with the typical Truck trailer manufacturing workplace, earning a grade C.

West-Mark Manufacturing: 3.1 TCR = 94% of Truck trailer manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

West-Mark Manufacturing safety composite

West-Mark Manufacturing scores strongest on total case rate (tcr) (safer than 80% of same-industry peers) and weakest on fatalities (safer than 51%), 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

70/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 3.09 per 100 workers

Safer than 80% of industry peers

DART rate
C 0.74 per 100 workers

Safer than 73% 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

West-Mark Manufacturing: 0.8 → 5.9 TCR

Peak year 2020 @ 5.9 TCR · DART/TCR 0.24× in 2020

West-Mark Manufacturing's TCR rose 5.1 from 0.8 in 2017 to 5.9 in 2020. In 2020, DART was 0.24× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336212 · Atwater, CA AT/BELOW-IND · MID

Grade C · TCR 3.1 · 94% of ind

  • DART 0.7 DART
  • RANK #4/18
  • PHOTO Stoughton Part Sales…
  • BOOK 3y book
  • INJ 11 inj
  • SIZE ~132 FTE

Nearest TCR peer: Stoughton Part Sales LLC (0.0 TCR gap)

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

West-Mark Manufacturing in the TCR neighbourhood

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

TCR

What this shows West-Mark Manufacturing averages 3.1 TCR (94% of the Truck trailer manufacturing BLS benchmark).

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

West-Mark Manufacturing TCR series: 2017=0.8 · 2018=2.5 · 2020=5.9 · BLS 3.3

Where West-Mark Manufacturing falls in its industry

474 Truck trailer manufacturing establishments

Safer than 80% of graded establishments in this industry, whose median TCR is 5.6.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #4 safest of 18 Truck trailer manufacturing employers in California.

West-Mark Manufacturing (132 employees, TCR 3.1) among 29 same-industry peers, split at the industry median of 86 employees and a TCR of 5.6 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 05101520 Average employees Total Case Rate West-Mark Manufacturing
West-Mark Manufacturing (132 employees, TCR 3.1) among 29 same-industry peers, split at the industry median of 86 employees and a TCR of 5.6

West-Mark Manufacturing has more employees than the Truck trailer manufacturing median and a lower injury rate than the industry's median TCR of 5.6. 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 5.9 0.7 8 0 0
2018 2.5 0.8 2 1 0
2017 0.8 0.8 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336212 · CA · Atwater

474 Truck trailer manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 38 employers in Atwater, 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 Stoughton Part Sales LLC 3.1 TCR
NAICS-TCR Crookston 3.1 TCR
NAICS-TCR Featherlite, Inc. 3.1 TCR
NAICS-TCR Carry-On Lavonia 3.1 TCR
STATE-SIZE Midnight Harvest 132 FTE
STATE-SIZE JOHNSTON FARMS 132 FTE
STATE-SIZE Irigoyen Farms, Inc. 132 FTE
STATE-SIZE Tri Pointe Homes Orange County-Los Angeles 132 FTE
CITY-NEAR Atwater 623 FTE
CITY-NEAR Construction 563 FTE
CITY-NEAR 5890 289 FTE
CITY-NEAR WM 5890 279 FTE
NAT-TCR IA - John Deere 3.1 TCR
NAT-TCR Evans & Associates Utility Services, Inc. - Lawton 3.1 TCR
NAT-TCR Ross store 1189 3.1 TCR
NAT-TCR 98 North Brunswick, Nj 3.1 TCR
NAT-SIZE Rda Service 132 FTE
NAT-SIZE Silver Lake Center, Inc 132 FTE
NAT-SIZE BOMAG Americas Inc. Ridgeway 132 FTE
NAT-SIZE Musculoskeletal Transplant Foundation -Raritan Center 132 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, 2018, 2017. 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.