Pipe and pipe fittings, cast iron, manufacturing · California

Mills Iron Works, Inc

Gardena, CA · ~40 workers · 5 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
7.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Mills Iron Works, Inc runs at 215% of its industry's injury rate - far more dangerous than the typical Pipe and pipe fittings, cast iron, manufacturing workplace, earning a grade F.

Mills Iron Works, Inc: 7.1 TCR = 215% of Pipe and pipe fittings, cast iron, manufacturing BLS 3.3 · 5y Form 300A (see methodology below)

Mills Iron Works, Inc safety composite

Mills Iron Works, Inc scores strongest on dart rate (safer than 58% of same-industry peers) and weakest on total case rate (tcr) (safer than 50%), 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

53/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 7.09 per 100 workers

Safer than 50% of industry peers

DART rate
C 2.47 per 100 workers

Safer than 58% 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%).

Rising injury rate

Mills Iron Works, Inc: 4.4 → 4.9 TCR

Peak year 2022 @ 12.3 TCR · DART/TCR 0.35× in 2023

Mills Iron Works, Inc's TCR rose 0.5 from 4.4 in 2017 to 4.9 in 2023. Peak filing year was 2022 at 12.3 TCR. In 2023, DART was 0.35× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 331511 · Gardena, CA ABOVE-IND · SMALL

Grade F · TCR 7.1 · 215% of ind

  • DART 2.5 DART
  • RANK #4/7
  • PHOTO Renaissance Manufact…
  • BOOK 5y book
  • INJ 10 inj
  • SIZE ~40 FTE

Nearest TCR peer: Renaissance Manufacturing Group (0.1 TCR gap)

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

Mills Iron Works, Inc in the TCR neighbourhood

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

TCR

What this shows Mills Iron Works, Inc averages 7.1 TCR (215% of the Pipe and pipe fittings, cast iron, manufacturing BLS benchmark).

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

Mills Iron Works, Inc TCR series: 2017=4.4 · 2020=7.4 · 2021=6.4 · 2022=12.3 · 2023=4.9 · BLS 3.3

Where Mills Iron Works, Inc falls in its industry

272 Pipe and pipe fittings, cast i establishments

Safer than 50% of graded establishments in this industry, whose median TCR is 7.2.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #4 safest of 7 Pipe and pipe fittings, cast i employers in California.

Mills Iron Works, Inc (40 employees, TCR 7.1) among 29 same-industry peers, split at the industry median of 112 employees and a TCR of 7.2 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 0510152025 Average employees Total Case Rate Mills Iron Works, Inc
Mills Iron Works, Inc (40 employees, TCR 7.1) among 29 same-industry peers, split at the industry median of 112 employees and a TCR of 7.2

Mills Iron Works, Inc has fewer employees than the Pipe and pipe fittings, cast iron, manuf median and a lower injury rate than the industry's median TCR of 7.2. 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 4.9 2.5 1 1 0
2022 12.3 12.3 5 0 0
2021 6.4 4.3 1 2 0
2020 7.4 3.7 1 1 0
2017 4.4 4.4 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

331511 · CA · Gardena

272 Pipe and pipe fittings, cast iron, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 223 employers in Gardena, 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 Renaissance Manufacturing Group 7.2 TCR
NAICS-TCR Alliant Castings Inc. 7.2 TCR
NAICS-TCR B W Supply Company 7.2 TCR
NAICS-TCR Decatur Foundry Inc 6.9 TCR
STATE-SIZE Stackhouse Brothers 40 FTE
STATE-SIZE PISTACHIO HARVESTING, INC. 40 FTE
STATE-SIZE Watsonville/San Juan Bautista 40 FTE
STATE-SIZE Gomez Growers 40 FTE
CITY-NEAR California Department of Transportation Facility 602 2,621 FTE
CITY-NEAR Ono-030 909 FTE
CITY-NEAR GARDENA HUB (CAGAR) 809 FTE
CITY-NEAR CAGAR - GARDENA HUB 794 FTE
NAT-TCR Vandalia County Market 7.1 TCR
NAT-TCR LMBI Inc. 7.1 TCR
NAT-TCR Southland Truck Group, LLC - Harahan 7.1 TCR
NAT-TCR 2028 Coborn's Delano 7.1 TCR
NAT-SIZE Kansas Brick & Tile 40 FTE
NAT-SIZE rico foods inc 40 FTE
NAT-SIZE Agility MFG Inc 40 FTE
NAT-SIZE Stell Enterprises, Inc. 40 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, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.