Plumbing and heating contractors · Minnesota

Twin City Mechanical

Forest Lake, MN · ~25 workers · 7 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.5
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Twin City Mechanical runs at 160% of its industry's injury rate - more dangerous than the typical Plumbing and heating contractors workplace, earning a grade D.

Twin City Mechanical: 4.5 TCR = 160% of Plumbing and heating contractors BLS 2.8 · 7y Form 300A (see methodology below)

Twin City Mechanical safety composite

Twin City Mechanical scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 24%), 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

36/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.48 per 100 workers

Safer than 38% of industry peers

DART rate
F 3.72 per 100 workers

Safer than 24% 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%).

Rising injury rate

Twin City Mechanical: 0.0 → 7.4 TCR

Peak year 2019 @ 20.0 TCR · DART/TCR 0.83× in 2024

Twin City Mechanical's TCR rose 7.4 from 0.0 in 2018 to 7.4 in 2024. Peak filing year was 2019 at 20.0 TCR. In 2024, DART was 0.83× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Forest Lake, MN ABOVE-IND · SMALL

Grade D · TCR 4.5 · 160% of ind

  • DART 3.7 DART
  • RANK #66/153
  • PHOTO Kimil Co
  • BOOK 7y book
  • INJ 8 inj
  • SIZE ~25 FTE

Nearest TCR peer: Kimil Co (0.0 TCR gap)

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

Twin City Mechanical in the TCR neighbourhood

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

TCR

What this shows Twin City Mechanical averages 4.5 TCR (160% of the Plumbing and heating contractors BLS benchmark).

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

Twin City Mechanical TCR series: 2018=0 · 2019=20 · 2020=0 · 2021=0 · 2022=0 · 2023=4 · 2024=7.4 · BLS 2.8

Where Twin City Mechanical falls in its industry

5,793 Plumbing and heating contracto establishments

Safer than 38% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Minnesota alone (the establishments it most directly competes with for workers and contracts): ranked #66 safest of 153 Plumbing and heating contracto employers in Minnesota.

Twin City Mechanical (25 employees, TCR 4.5) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 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 050100150200250 05101520 Average employees Total Case Rate Twin City Mechanical
Twin City Mechanical (25 employees, TCR 4.5) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Twin City Mechanical has fewer employees than the Plumbing and heating contractors median and a higher injury rate than the industry's median TCR of 3.3. 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 7.4 3.7 2 0 0
2023 4.0 0.0 1 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 20.0 16.0 5 0 0
2018 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MN · Forest Lake

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 15,828 rated employers in Minnesota with headcount on file · 71 employers in Forest Lake, MN · 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 Kimil Co 4.5 TCR
NAICS-TCR Northern Peabody LLC 4.5 TCR
NAICS-TCR Holt Plumbing 4.5 TCR
NAICS-TCR Charlotte Based Operations 4.5 TCR
STATE-SIZE GDM Seeds, Inc - Hutchinson, MN 25 FTE
STATE-SIZE Park Rapids Trucking 25 FTE
STATE-SIZE Country Pork LLP 25 FTE
STATE-SIZE Select Genetics MN IPH 03-0110-10, 50, 51, 52, 970 25 FTE
CITY-NEAR Forest Lake YMCA 1,477 FTE
CITY-NEAR WM 2274 451 FTE
CITY-NEAR 2274 399 FTE
CITY-NEAR Vinco, Inc. 288 FTE
NAT-TCR Ptcr Greensboro 4.5 TCR
NAT-TCR EWR-D 4.5 TCR
NAT-TCR Edward Arnold Scrap Processor, Inc 4.5 TCR
NAT-TCR Ridgewood Healthcare LLC 4.5 TCR
NAT-SIZE Bondy Haney Service 25 FTE
NAT-SIZE Janesville Headquarters 25 FTE
NAT-SIZE Parks and Recreation 25 FTE
NAT-SIZE Buttonwillow Warehouse - Applicator / Service Facility 25 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, 2020, 2019, 2018. 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.