Plastics working machinery manufacturing · California
Roncelli Plastics
Monrovia, CA · ~138 workers · 4 years of OSHA Injury Tracking Application data.
- C
- Average Safety Record
- 3.2
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
Roncelli Plastics runs at 98% of its industry's injury rate - about level with the typical Plastics working machinery manufacturing workplace, earning a grade C.
Roncelli Plastics: 3.2 TCR = 98% of Plastics working machinery manufacturing BLS 3.3 · 4y Form 300A (see methodology below)
Roncelli Plastics safety composite
Roncelli Plastics scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 28%), 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).
40/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- D 3.23 per 100 workers
Safer than 44% of industry peers
- DART rate
- F 2.48 per 100 workers
Safer than 28% 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%).
Rising injury rate
Roncelli Plastics: 2.4 → 3.3 TCR
Peak year 2023 @ 5.7 TCR · DART/TCR 0.77× in 2024
Roncelli Plastics's TCR rose 0.9 from 2.4 in 2020 to 3.3 in 2024. Peak filing year was 2023 at 5.7 TCR. In 2024, DART was 0.77× this establishment's average TCR (severity share of cases).
OSHA ITA Form 300A scorecard
Establishment book 333249 · Monrovia, CA AT/BELOW-IND · MID
Grade C · TCR 3.2 · 98% of ind
- DART 2.5 DART
- RANK #14/27
- PHOTO Fairway Injection Mo…
- BOOK 4y book
- INJ 13 inj
- SIZE ~138 FTE
Nearest TCR peer: Fairway Injection Molds, Inc (0.0 TCR gap)
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Roncelli Plastics in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- 3D Systems (Vo
3D Systems (Volumetric) - Houston
3.3 TCR
- This site
Roncelli Plastics
3.2 TCR
- Fairway Inject
Fairway Injection Molds, Inc
3.2 TCR
- Germantown
Germantown
3.2 TCR
- Biorigin
Biorigin
3.2 TCR
What this shows Roncelli Plastics averages 3.2 TCR (98% of the Plastics working machinery manufacturing BLS benchmark).
Roncelli Plastics TCR series: 2020=2.4 · 2021=1.6 · 2023=5.7 · 2024=3.3 · BLS 3.3
Where Roncelli Plastics falls in its industry
448 Plastics working machinery man establishmentsSafer than 44% of graded establishments in this industry, whose median TCR is 3.0.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #14 safest of 27 Plastics working machinery man employers in California.
Roncelli Plastics has more employees than the Plastics working machinery manufacturing 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 | 3.3 | 2.5 | 3 | 1 | 0 |
| 2023 | 5.7 | 5.7 | 5 | 1 | 0 |
| 2021 | 1.6 | 0.8 | 2 | 0 | 0 |
| 2020 | 2.4 | 1.6 | 3 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
333249 · CA · Monrovia
448 Plastics working machinery manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 68 employers in Monrovia, 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 | Fairway Injection Molds, Inc | 3.2 TCR |
| NAICS-TCR | Germantown | 3.2 TCR |
| NAICS-TCR | 3D Systems (Volumetric) - Houston | 3.3 TCR |
| NAICS-TCR | Biorigin | 3.2 TCR |
| STATE-SIZE | Westerlay Orchids LP | 138 FTE |
| STATE-SIZE | Danell Custom Harvesting LLC - DCH629 | 138 FTE |
| STATE-SIZE | Sustainable Labor Solutions, Inc | 138 FTE |
| STATE-SIZE | RLH Fire Protection | 138 FTE |
| CITY-NEAR | California Department of Transportation Facility 593 | 2,621 FTE |
| CITY-NEAR | Monrovia 02 Oral Care | 695 FTE |
| CITY-NEAR | WorleyParsons Group Inc - Monrovia | 530 FTE |
| CITY-NEAR | Original Tommy's | 500 FTE |
| NAT-TCR | YMC, Inc. | 3.2 TCR |
| NAT-TCR | KJ's Market #669 | 3.2 TCR |
| NAT-TCR | Reschcor, Inc | 3.2 TCR |
| NAT-TCR | Store 0091 | 3.2 TCR |
| NAT-SIZE | Micron SIG | 138 FTE |
| NAT-SIZE | The Highlands | 138 FTE |
| NAT-SIZE | Autoneum North America Lallendorf | 138 FTE |
| NAT-SIZE | Store 0086 | 138 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.