Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing · California

WS - Flowmaster

West Sacramento, CA · ~109 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
8.3
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

WS - Flowmaster runs at 154% of its industry's injury rate - more dangerous than the typical Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing workplace, earning a grade D.

WS - Flowmaster: 8.3 TCR = 154% of Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing BLS 5.4 · 2y Form 300A (see methodology below)

WS - Flowmaster safety composite

WS - Flowmaster scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (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

26/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 8.32 per 100 workers

Safer than 9% of industry peers

DART rate
F 2.67 per 100 workers

Safer than 29% of industry peers

Fatalities
D 0

Safer than 50% 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

−6.0

2019→2020

WS - Flowmaster injury rate improved

WS - Flowmaster's TCR fell 6.0 from 11.3 in 2019 to 5.3 in 2020. Peak filing year was 2019 at 11.3 TCR. In 2020, DART was 0.32× this establishment's average TCR (severity share of cases).

2019=11.3 · 2020=5.3

OSHA ITA Form 300A scorecard

Establishment book 336310 · West Sacramento, CA ABOVE-IND · MID

Grade D · TCR 8.3 · 154% of ind

  • DART 2.7 DART
  • RANK #11/13
  • PHOTO C. Thorrez Industries
  • BOOK 2y book
  • INJ 16 inj
  • SIZE ~109 FTE

Nearest TCR peer: C. Thorrez Industries (0.1 TCR gap)

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

WS - Flowmaster in the TCR neighbourhood

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

TCR

What this shows WS - Flowmaster averages 8.3 TCR (154% of the Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing BLS benchmark).

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

WS - Flowmaster TCR series: 2019=11.3 · 2020=5.3 · BLS 5.4

Where WS - Flowmaster falls in its industry

221 Manifolds (i.e., intake and ex establishments

Safer than 9% of graded establishments in this industry, whose median TCR is 2.9.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #11 safest of 13 Manifolds (i.e., intake and ex employers in California.

WS - Flowmaster (109 employees, TCR 8.3) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9 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 02004006008001,000 05101520 Average employees Total Case Rate WS - Flowmaster
WS - Flowmaster (109 employees, TCR 8.3) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9

WS - Flowmaster has fewer employees than the Manifolds (i.e., intake and exhaust), au median and a higher injury rate than the industry's median TCR of 2.9. 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 5.3 2.7 2 0 0
2019 11.3 8.8 14 4 0

OSHA ITA peer cross-reference

Establishment peer ledger

336310 · CA · West Sacramento

221 Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 188 employers in West Sacramento, 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 C. Thorrez Industries 8.4 TCR
NAICS-TCR Zenith Power Products 8.2 TCR
NAICS-TCR Tonawanda Engine Plant 8.5 TCR
NAICS-TCR TF METAL USA LLC (Formally Known As Fuji Autotech USA) 8.6 TCR
STATE-SIZE BRAVANTE FARM MANAGEMENT 109 FTE
STATE-SIZE John Kautz Farms - Lodi, CA 109 FTE
STATE-SIZE G4 Farm Labor, Inc. 109 FTE
STATE-SIZE Elvira Sandoval 109 FTE
CITY-NEAR HEADQUARTERS: COMBINED ADMINISTRATIVE UNITS 6,971 FTE
CITY-NEAR Administration 4,185 FTE
CITY-NEAR Department of General Services 3,631 FTE
CITY-NEAR California Department of Transportation Facility 36 2,161 FTE
NAT-TCR Meijer Store 163 8.3 TCR
NAT-TCR Highway Improvement, Inc. 8.3 TCR
NAT-TCR Sedano's Supermarket #40 8.3 TCR
NAT-TCR BHA 8.3 TCR
NAT-SIZE BD Medical 109 FTE
NAT-SIZE McNish Corporation 109 FTE
NAT-SIZE Wilmington Commercial 109 FTE
NAT-SIZE FCA Kokomo Transmission (KTP) 109 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.