Construction management, water and sewer line · California

PK Mechanical Systems, Inc

Wildomar, CA · ~25 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
8.9
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

PK Mechanical Systems, Inc runs at 317% of its industry's injury rate - far more dangerous than the typical Construction management, water and sewer line workplace, earning a grade F.

PK Mechanical Systems, Inc: 8.9 TCR = 317% of Construction management, water and sewer line BLS 2.8 · 3y Form 300A (see methodology below)

PK Mechanical Systems, Inc safety composite

PK Mechanical Systems, Inc scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on total case rate (tcr) (safer than 8%), 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).

F

19/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 8.88 per 100 workers

Safer than 8% of industry peers

DART rate
F 6.62 per 100 workers

Safer than 8% 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

−2.5

2019→2021

PK Mechanical Systems, Inc injury rate improved

PK Mechanical Systems, Inc's TCR fell 2.5 from 9.1 in 2019 to 6.6 in 2021. Peak filing year was 2020 at 10.9 TCR. In 2021, DART was 0.75× this establishment's average TCR (severity share of cases).

2019=9.1 · 2020=10.9 · 2021=6.6

OSHA ITA Form 300A scorecard

Establishment book 237110 · Wildomar, CA ABOVE-IND · SMALL

Grade F · TCR 8.9 · 317% of ind

  • DART 6.6 DART
  • RANK #187/201
  • PHOTO Kruczek Construction…
  • BOOK 3y book
  • INJ 5 inj
  • SIZE ~25 FTE

Nearest TCR peer: Kruczek Construction Inc. (0.0 TCR gap)

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

PK Mechanical Systems, Inc in the TCR neighbourhood

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

TCR

What this shows PK Mechanical Systems, Inc averages 8.9 TCR (317% of the Construction management, water and sewer line BLS benchmark).

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

PK Mechanical Systems, Inc TCR series: 2019=9.1 · 2020=10.9 · 2021=6.6 · BLS 2.8

Where PK Mechanical Systems, Inc falls in its industry

1,614 Construction management, water establishments

Safer than 8% of graded establishments in this industry, whose median TCR is 3.0.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #187 safest of 201 Construction management, water employers in California.

PK Mechanical Systems, Inc (25 employees, TCR 8.9) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0 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 051015 Average employees Total Case Rate PK Mechanical Systems, Inc
PK Mechanical Systems, Inc (25 employees, TCR 8.9) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0

PK Mechanical Systems, Inc has fewer employees than the Construction management, water and sewer 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
2021 6.6 6.6 1 0 0
2020 10.9 10.9 2 0 0
2019 9.1 9.1 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237110 · CA · Wildomar

1,614 Construction management, water and sewer line employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 21 employers in Wildomar, 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 Kruczek Construction Inc. 8.9 TCR
NAICS-TCR Fogle Pump & Supply, Inc. 8.8 TCR
NAICS-TCR Wexcon, Inc. 8.8 TCR
NAICS-TCR Hydro Resources, Rocky Mountain 8.8 TCR
STATE-SIZE Conservation Farms Ranches 25 FTE
STATE-SIZE GM Ag Services, Inc. 25 FTE
STATE-SIZE Farm Shop 25 FTE
STATE-SIZE Dougherty Brothers 25 FTE
CITY-NEAR 2576-50350000-5035 671 FTE
CITY-NEAR 2576-22A 505 FTE
CITY-NEAR CA-Wildomar Service Center 203 FTE
CITY-NEAR KB Home - Inland Empire Division Office 184 FTE
NAT-TCR Anthem 8.9 TCR
NAT-TCR Four Seasons Excavation and Landscaping, Inc. 8.9 TCR
NAT-TCR Coral Springs 2018 8.9 TCR
NAT-TCR Brookdale Mount Vernon Ohio 8.9 TCR
NAT-SIZE Republic Services of North Carolina (3152) 25 FTE
NAT-SIZE Roanoke Hauling 4973 25 FTE
NAT-SIZE Superior Plus - 3701 25 FTE
NAT-SIZE American Rollup Door Company - Orlando 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: 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.