Base facilities operation support services · California

NSWC Corona

Norco, CA · ~21 workers · 4 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.1
Avg TCR
2.6
Industry avg
0
Fatalities
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The verdict

NSWC Corona runs at 157% of its industry's injury rate - more dangerous than the typical Base facilities operation support services workplace, earning a grade D.

NSWC Corona: 4.1 TCR = 157% of Base facilities operation support services BLS 2.6 · 4y Form 300A (see methodology below)

NSWC Corona safety composite

NSWC Corona scores strongest on dart rate (safer than 77% of same-industry peers) and weakest on total case rate (tcr) (safer than 35%), 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).

D

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.09 per 100 workers

Safer than 35% of industry peers

DART rate
B 0 per 100 workers

Safer than 77% 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%).

TCR Δ

−5.7

2021→2024

NSWC Corona injury rate improved

NSWC Corona's TCR fell 5.7 from 5.7 in 2021 to 0.0 in 2024. Peak filing year was 2022 at 10.7 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2021=5.7 · 2022=10.7 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 561210 · Norco, CA ABOVE-IND · SMALL

Grade D · TCR 4.1 · 157% of ind

  • DART 0.0 DART
  • RANK #40/69
  • PHOTO SODEXO AT ENNIS ISD …
  • BOOK 4y book
  • INJ 3 inj
  • SIZE ~21 FTE

Nearest TCR peer: SODEXO AT ENNIS ISD MAINTENANCE (0.0 TCR gap)

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

NSWC Corona in the TCR neighbourhood

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

TCR

What this shows NSWC Corona averages 4.1 TCR (157% of the Base facilities operation support services BLS benchmark).

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

NSWC Corona TCR series: 2021=5.7 · 2022=10.7 · 2023=0 · 2024=0 · BLS 2.6

Where NSWC Corona falls in its industry

757 Base facilities operation supp establishments

Safer than 35% 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 #40 safest of 69 Base facilities operation supp employers in California.

NSWC Corona (21 employees, TCR 4.1) among 29 same-industry peers, split at the industry median of 55 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 0200400600 051015 Average employees Total Case Rate NSWC Corona
NSWC Corona (21 employees, TCR 4.1) among 29 same-industry peers, split at the industry median of 55 employees and a TCR of 2.9

NSWC Corona has fewer employees than the Base facilities operation support servic 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
2024 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 10.7 0.0 2 0 0
2021 5.7 5.7 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

561210 · CA · Norco

757 Base facilities operation support services employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 46 employers in Norco, 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 SODEXO AT ENNIS ISD MAINTENANCE 4.1 TCR
NAICS-TCR Facility Maintenance 4.1 TCR
NAICS-TCR R&D Maintenance Services, Inc. (HART) 4.1 TCR
NAICS-TCR 200 950 - GEO CENTRAL REGIONAL OFFICE-KARNES CIVIL DETENTION CENTER 4.1 TCR
STATE-SIZE Poso Ridge,LLC 21 FTE
STATE-SIZE Fonseca & Fonseca, Inc. 21 FTE
STATE-SIZE TELESIS ONION CO., INC. 21 FTE
STATE-SIZE Mayflower Farms Inc 21 FTE
CITY-NEAR California Rehabilitation Center 1,174 FTE
CITY-NEAR Guy Yocom Construction, Inc. 1,172 FTE
CITY-NEAR Ono-034 909 FTE
CITY-NEAR Better Nutritional Norco Campus 615 FTE
NAT-TCR Tecta America, Illinois Roofing LLC 4.1 TCR
NAT-TCR Santie's Wholesale Oil Co 4.1 TCR
NAT-TCR Cascade Creek Memory Care 4.1 TCR
NAT-TCR Amazon.com Services LLC - DDC2 4.1 TCR
NAT-SIZE Wolcott Mill Metropark 21 FTE
NAT-SIZE Arlington Structural Steel and Fabrications, Inc. 21 FTE
NAT-SIZE AeroRepair Corp TX 21 FTE
NAT-SIZE Tanger Outlets Daytona 21 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, 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.