Aggregate spreaders manufacturing · Idaho

DZ Grinders, LLC

Caldwell, ID · ~88 workers · 5 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

DZ Grinders, LLC runs at 155% of its industry's injury rate - more dangerous than the typical Aggregate spreaders manufacturing workplace, earning a grade D.

DZ Grinders, LLC: 5.1 TCR = 155% of Aggregate spreaders manufacturing BLS 3.3 · 5y Form 300A (see methodology below)

DZ Grinders, LLC safety composite

DZ Grinders, LLC scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 38%), 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

41/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 5.11 per 100 workers

Safer than 38% of industry peers

DART rate
D 2.4 per 100 workers

Safer than 38% 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

−3.9

2019→2023

DZ Grinders, LLC injury rate improved

DZ Grinders, LLC's TCR fell 3.9 from 7.9 in 2019 to 4.0 in 2023. Peak filing year was 2019 at 7.9 TCR. In 2023, DART was 0.47× this establishment's average TCR (severity share of cases).

2019=7.9 · 2020=3.2 · 2021=5.7 · 2022=4.8 · 2023=4.0

OSHA ITA Form 300A scorecard

Establishment book 333120 · Caldwell, ID ABOVE-IND · SMALL

Grade D · TCR 5.1 · 155% of ind

  • DART 2.4 DART
  • RANK #3/5
  • PHOTO International Constr…
  • BOOK 5y book
  • INJ 23 inj
  • SIZE ~88 FTE

Nearest TCR peer: International Construction Equipment (0.0 TCR gap)

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

DZ Grinders, LLC in the TCR neighbourhood

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

TCR

What this shows DZ Grinders, LLC averages 5.1 TCR (155% of the Aggregate spreaders manufacturing BLS benchmark).

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

DZ Grinders, LLC TCR series: 2019=7.9 · 2020=3.2 · 2021=5.7 · 2022=4.8 · 2023=4 · BLS 3.3

Where DZ Grinders, LLC falls in its industry

400 Aggregate spreaders manufactur establishments

Safer than 38% of graded establishments in this industry, whose median TCR is 4.0.

More dangerous than peersSafer than peers

Narrower to Idaho alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 5 Aggregate spreaders manufactur employers in Idaho.

DZ Grinders, LLC (88 employees, TCR 5.1) among 29 same-industry peers, split at the industry median of 87 employees and a TCR of 4.0 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 0100200300400500 05101520 Average employees Total Case Rate DZ Grinders, LLC
DZ Grinders, LLC (88 employees, TCR 5.1) among 29 same-industry peers, split at the industry median of 87 employees and a TCR of 4.0

DZ Grinders, LLC has more employees than the Aggregate spreaders manufacturing median and a higher injury rate than the industry's median TCR of 4.0. 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
2023 4.0 2.4 5 0 0
2022 4.8 2.9 4 1 0
2021 5.7 5.7 6 0 0
2020 3.2 1.6 2 0 0
2019 7.9 2.6 6 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

333120 · ID · Caldwell

400 Aggregate spreaders manufacturing employers nationwide with a credible TCR · 2,774 rated employers in Idaho with headcount on file · 118 employers in Caldwell, ID · 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 International Construction Equipment 5.1 TCR
NAICS-TCR Power Curbers Companies LLC 5.1 TCR
NAICS-TCR Douglas Dynamics, aka Western Products 5.1 TCR
NAICS-TCR OVB HOLDINGS LLC DBA OVERBUILT and DBA EASIPOUR 5.0 TCR
STATE-SIZE Wheeler Electric 88 FTE
STATE-SIZE Diversified Fluid Solutions 88 FTE
STATE-SIZE 1805 TWIN FALLS 88 FTE
STATE-SIZE Trader Joe's 0360 Boise 88 FTE
CITY-NEAR West Valley Medical Center 564 FTE
CITY-NEAR FG Idaho Plant - Caldwell 519 FTE
CITY-NEAR JR Simplot - Food - Idaho Plant 510 FTE
CITY-NEAR WM 2780 439 FTE
NAT-TCR Triad Engineering & Contracting 5.1 TCR
NAT-TCR Rock River Healthcare 5.1 TCR
NAT-TCR Harris Door and Drawer, Inc. 5.1 TCR
NAT-TCR Smithfield Monmouth 5.1 TCR
NAT-SIZE Goodwill Industries of Central East Texas, Inc. 88 FTE
NAT-SIZE Young and McQueen Grading Company Inc 88 FTE
NAT-SIZE Koppy's Propane 88 FTE
NAT-SIZE Andrade, Inc dba Everett's Auto Parts 88 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: 2023, 2022, 2021, 2020, 2019. 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.