Electric power generation, nuclear · Connecticut

Millstone Nuc

Waterford, CT · ~958 workers · 6 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.1
Avg TCR
1.2
Industry avg
0
Fatalities
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The verdict

Millstone Nuc runs at 7% of its industry's injury rate - far safer than the typical Electric power generation, nuclear workplace, earning a grade A.

Millstone Nuc: 0.1 TCR = 7% of Electric power generation, nuclear BLS 1.2 · 6y Form 300A (see methodology below)

Millstone Nuc safety composite

Millstone Nuc scores strongest on total case rate (tcr) (safer than 86% of same-industry peers) and weakest on fatalities (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).

C

70/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 0.08 per 100 workers

Safer than 86% of industry peers

DART rate
C 0 per 100 workers

Safer than 66% of industry peers

Fatalities
D 0

Safer than 50% 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

−0.5

2016→2021

Millstone Nuc injury rate improved

Millstone Nuc's TCR fell 0.5 from 0.5 in 2016 to 0.0 in 2021. Peak filing year was 2016 at 0.5 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2016=0.5 · 2017=0.0 · 2018=0.0 · 2019=0.0 · 2020=0.0 · 2021=0.0

OSHA ITA Form 300A scorecard

Establishment book 221113 · Waterford, CT AT/BELOW-IND · MID

Grade A · TCR 0.1 · 7% of ind

  • DART 0.0 DART
  • RANK P86
  • PHOTO South Texas Project …
  • BOOK 6y book
  • INJ 3 inj
  • SIZE ~958 FTE

Nearest TCR peer: South Texas Project Nuclear Operating Company (0.0 TCR gap)

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

Millstone Nuc in the TCR neighbourhood

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

TCR

What this shows Millstone Nuc averages 0.1 TCR (7% of the Electric power generation, nuclear BLS benchmark).

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

Millstone Nuc TCR series: 2016=0.5 · 2017=0 · 2018=0 · 2019=0 · 2020=0 · 2021=0 · BLS 1.2

Where Millstone Nuc falls in its industry

80 Electric power generation, nuc establishments

Safer than 86% of graded establishments in this industry, whose median TCR is 0.2.

More dangerous than peersSafer than peers
Millstone Nuc (958 employees, TCR 0.1) among 29 same-industry peers, split at the industry median of 669 employees and a TCR of 0.2 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 05001,0001,500 0123 Average employees Total Case Rate Millstone Nuc
Millstone Nuc (958 employees, TCR 0.1) among 29 same-industry peers, split at the industry median of 669 employees and a TCR of 0.2

Millstone Nuc has more employees than the Electric power generation, nuclear median and a lower injury rate than the industry's median TCR of 0.2. 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
2021 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 0.0 0.0 0 0 0
2018 0.0 0.0 0 0 0
2017 0.0 0.0 0 0 0
2016 0.5 0.0 3 2 0

OSHA ITA peer cross-reference

Establishment peer ledger

221113 · CT · Waterford

80 Electric power generation, nuclear employers nationwide with a credible TCR · 7,008 rated employers in Connecticut with headcount on file · 81 employers in Waterford, CT · 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 South Texas Project Nuclear Operating Company 0.1 TCR
NAICS-TCR Nextera Energy Point Beach Nuclear Plant 0.1 TCR
NAICS-TCR Susquehanna Nuclear 0.1 TCR
NAICS-TCR Beaver Valley 0.1 TCR
STATE-SIZE Amazon.com Services LLC - BDL5 956 FTE
STATE-SIZE WLWAH 954 FTE
STATE-SIZE CHARLOTTE HUNGERFORD HOSPITAL 949 FTE
STATE-SIZE Day Kimball Hospital 968 FTE
CITY-NEAR WM 2331 362 FTE
CITY-NEAR 2331 323 FTE
CITY-NEAR Bayview Health Care 229 FTE
CITY-NEAR Millstone Nuclear Plant 220 FTE
NAT-TCR CA - Verizon (Fresno) 0.1 TCR
NAT-TCR Automated Logic Controls (Midwest) 0.1 TCR
NAT-TCR Dynamic Fabrication Contractors - East Yard 0.1 TCR
NAT-TCR Hanging H Companies LLC 0.1 TCR
NAT-SIZE General Mills - Wellston 958 FTE
NAT-SIZE Discovery Cove 958 FTE
NAT-SIZE 058101-Santa Clarita Ca P&Dc 958 FTE
NAT-SIZE 836 - EFC5 Plainfield, IN 958 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, 2018, 2017, 2016. 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.