Rendering plants · Iowa

Darling Ingredients Sonac Blood

Maquoketa, IA · ~43 workers · 4 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.4
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Darling Ingredients Sonac Blood runs at 134% of its industry's injury rate - more dangerous than the typical Rendering plants workplace, earning a grade D.

Darling Ingredients Sonac Blood: 4.4 TCR = 134% of Rendering plants BLS 3.3 · 4y Form 300A (see methodology below)

Darling Ingredients Sonac Blood safety composite

Darling Ingredients Sonac Blood scores strongest on dart rate (safer than 71% of same-industry peers) and weakest on fatalities (safer than 52%), 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

63/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 4.41 per 100 workers

Safer than 62% of industry peers

DART rate
C 1.65 per 100 workers

Safer than 71% 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%).

TCR Δ

−0.9

2020→2024

Darling Ingredients Sonac Blood injury rate improved

Darling Ingredients Sonac Blood's TCR fell 0.9 from 5.9 in 2020 to 4.9 in 2024. Peak filing year was 2020 at 5.9 TCR. In 2024, DART was 0.37× this establishment's average TCR (severity share of cases).

2020=5.9 · 2022=4.5 · 2023=2.4 · 2024=4.9

OSHA ITA Form 300A scorecard

Establishment book 311613 · Maquoketa, IA ABOVE-IND · SMALL

Grade D · TCR 4.4 · 134% of ind

  • DART 1.6 DART
  • RANK #2/9
  • PHOTO Blue Earth MN
  • BOOK 4y book
  • INJ 9 inj
  • SIZE ~43 FTE

Nearest TCR peer: Blue Earth MN (0.0 TCR gap)

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

Darling Ingredients Sonac Blood in the TCR neighbourhood

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

TCR

What this shows Darling Ingredients Sonac Blood averages 4.4 TCR (134% of the Rendering plants BLS benchmark).

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

Darling Ingredients Sonac Blood TCR series: 2020=5.9 · 2022=4.5 · 2023=2.4 · 2024=4.9 · BLS 3.3

Where Darling Ingredients Sonac Blood falls in its industry

151 Rendering plants establishments

Safer than 62% of graded establishments in this industry, whose median TCR is 5.6.

More dangerous than peersSafer than peers

Narrower to Iowa alone (the establishments it most directly competes with for workers and contracts): ranked #2 safest of 9 Rendering plants employers in Iowa.

Darling Ingredients Sonac Blood (43 employees, TCR 4.4) among 29 same-industry peers, split at the industry median of 46 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 050100150 05101520 Average employees Total Case Rate Darling Ingredients Sonac Blood
Darling Ingredients Sonac Blood (43 employees, TCR 4.4) among 29 same-industry peers, split at the industry median of 46 employees and a TCR of 5.6

Darling Ingredients Sonac Blood has fewer employees than the Rendering plants 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
2024 4.9 1.6 3 0 0
2023 2.4 0.0 1 0 0
2022 4.5 2.2 2 0 0
2020 5.9 3.9 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

311613 · IA · Maquoketa

151 Rendering plants employers nationwide with a credible TCR · 7,192 rated employers in Iowa with headcount on file · 28 employers in Maquoketa, IA · 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 Blue Earth MN 4.4 TCR
NAICS-TCR Keystone Protein 4.5 TCR
NAICS-TCR Darling Ingredients Los Angeles 4.5 TCR
NAICS-TCR Darling Ingredients 4.5 TCR
STATE-SIZE Centrum Valley Farms North 43 FTE
STATE-SIZE Burlington 43 FTE
STATE-SIZE Koester Construction Company Incorporated 43 FTE
STATE-SIZE Commercial Contracting Services 43 FTE
CITY-NEAR Maquoketa Store 575 FTE
CITY-NEAR DC206 DC206 MAQUOKETA IA 342 FTE
CITY-NEAR 4186-DC206 208 FTE
CITY-NEAR WM 1509 178 FTE
NAT-TCR 2418-Hyatt Place Knoxville 4.4 TCR
NAT-TCR CORE Contractors 4.4 TCR
NAT-TCR Arete Industries 4.4 TCR
NAT-TCR Dodge Moving & Storage 4.4 TCR
NAT-SIZE Five Star Nashville 43 FTE
NAT-SIZE Wiese Eden Prairie 43 FTE
NAT-SIZE Deming Excavating, Inc. 43 FTE
NAT-SIZE Grand Valley Power 43 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, 2020. 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.