Electric Power Transmission, Control and Distribution · Missouri

AMEREN MISSOURI - Mackenzie

St. Louis, MO · ~41 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
6.0
Avg TCR
1.2
Industry avg
0
Fatalities
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The verdict

AMEREN MISSOURI - Mackenzie runs at 500% of its industry's injury rate - far more dangerous than the typical Electric Power Transmission, Control and Distribution workplace, earning a grade F.

AMEREN MISSOURI - Mackenzie: 6.0 TCR = 500% of Electric Power Transmission, Control and Distribution BLS 1.2 · 2y Form 300A (see methodology below)

AMEREN MISSOURI - Mackenzie safety composite

AMEREN MISSOURI - Mackenzie scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 5%), 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

20/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 6 per 100 workers

Safer than 14% of industry peers

DART rate
F 7.1 per 100 workers

Safer than 5% 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

AMEREN MISSOURI - Mackenzie: 2.5 → 9.5 TCR

Peak year 2021 @ 9.5 TCR · DART/TCR 1.18× in 2021

AMEREN MISSOURI - Mackenzie's TCR rose 6.9 from 2.5 in 2020 to 9.5 in 2021. In 2021, DART was 1.18× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 221122 · St. Louis, MO ABOVE-IND · SMALL

Grade F · TCR 6.0 · 500% of ind

  • DART 7.1 DART
  • RANK #106/127
  • PHOTO WEST FLORIDA ELECTRI…
  • BOOK 2y book
  • INJ 5 inj
  • SIZE ~41 FTE

Nearest TCR peer: WEST FLORIDA ELECTRIC COOPERATIVE (0.0 TCR gap)

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

AMEREN MISSOURI - Mackenzie in the TCR neighbourhood

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

TCR

What this shows AMEREN MISSOURI - Mackenzie averages 6.0 TCR (500% of the Electric Power Transmission, Control and Distribution BLS benchmark).

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

AMEREN MISSOURI - Mackenzie TCR series: 2020=2.5 · 2021=9.5 · BLS 1.2

Where AMEREN MISSOURI - Mackenzie falls in its industry

2,958 Electric Power Transmission, C establishments

Safer than 14% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers

Narrower to Missouri alone (the establishments it most directly competes with for workers and contracts): ranked #106 safest of 127 Electric Power Transmission, C employers in Missouri.

AMEREN MISSOURI - Mackenzie (41 employees, TCR 6.0) among 29 same-industry peers, split at the industry median of 56 employees and a TCR of 2.5 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 05001,0001,5002,000 051015 Average employees Total Case Rate AMEREN MISSOURI - Mackenzie
AMEREN MISSOURI - Mackenzie (41 employees, TCR 6.0) among 29 same-industry peers, split at the industry median of 56 employees and a TCR of 2.5

AMEREN MISSOURI - Mackenzie has fewer employees than the Electric Power Transmission, Control and median and a higher injury rate than the industry's median TCR of 2.5. 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 9.5 7.1 4 0 0
2020 2.5 2.5 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

221122 · MO · St. Louis

2,958 Electric Power Transmission, Control and Distribution employers nationwide with a credible TCR · 10,075 rated employers in Missouri with headcount on file · 686 employers in St. Louis, MO · 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 WEST FLORIDA ELECTRIC COOPERATIVE 6.0 TCR
NAICS-TCR Alpena Power Company 6.0 TCR
NAICS-TCR LADWP 1350 WALL 6.0 TCR
NAICS-TCR Tonawanda Service Center-NYEN 6.0 TCR
STATE-SIZE CoverCress INC 41 FTE
STATE-SIZE The Doe Run Company Exploration & Development 41 FTE
STATE-SIZE 8FB - Nuclear - Radiation Protection 41 FTE
STATE-SIZE 03H - Sub Mtce and Const - UEC West 41 FTE
CITY-NEAR Monsanto - St. Louis 6,028 FTE
CITY-NEAR St. Anthony's Medical Center 3,706 FTE
CITY-NEAR ABI Corporation 2,720 FTE
CITY-NEAR Saint Louis University Hospital 2,084 FTE
NAT-TCR Climate Pros-Hayward-3550 6.0 TCR
NAT-TCR NSS 6.0 TCR
NAT-TCR XGH 6.0 TCR
NAT-TCR Herr Foods Inc. 21 6.0 TCR
NAT-SIZE Tecta America East LLC - Baltimore 41 FTE
NAT-SIZE Long Electric 41 FTE
NAT-SIZE Tate & Lyle - Duluth, MN 41 FTE
NAT-SIZE Prairie County Hospital District 41 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. 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.