Employer · Connecticut

470 - Groton

Name: 470 - Groton Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Groton, CT · ~109 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 3.3
Avg TCR: 3.4
Industry avg: 0
Fatalities

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The verdict

470 - Groton runs at 96% of its industry's injury rate - about level with the typical industry workplace, earning a grade C.

470 - Groton: 3.3 TCR = 96% of industry BLS 3.4 · 6y Form 300A (see methodology below)

470 - Groton safety composite

470 - Groton scores strongest on dart rate (safer than 74% of same-industry peers) and weakest on total case rate (tcr) (safer than 46%), 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).

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): D 3.28 per 100 workers

Safer than 46% of industry peers
DART rate: C 0 per 100 workers

Safer than 74% 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

−2.0

2016→2022

470 - Groton injury rate improved

470 - Groton's TCR fell 2.0 from 2.0 in 2016 to 0.0 in 2022. Peak filing year was 2019 at 6.4 TCR. In 2022, DART was 0× this establishment's average TCR (severity share of cases).

2016=2.0 · 2017=4.3 · 2018=4.4 · 2019=6.4 · 2020=2.6 · 2022=0.0

OSHA ITA Form 300A scorecard

Establishment book 452210 · Groton, CT AT/BELOW-IND · MID

Grade C · TCR 3.3 · 96% of ind

DART 0.0 DART
RANK #28/45
PHOTO 71354
BOOK 6y book
INJ 9 inj
SIZE ~109 FTE

Nearest TCR peer: 71354 (0.0 TCR gap)

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This site

3.3
71354

3.3
214 - Saginaw

3.3
659 - Flagstaf

3.3
1149 - St. Pet

3.3

What this shows 470 - Groton averages 3.3 TCR (96% of the industry BLS benchmark).

470 - Groton TCR series: 2016=2 · 2017=4.3 · 2018=4.4 · 2019=6.4 · 2020=2.6 · 2022=0 · BLS 3.4

Where 470 - Groton falls in its industry

2,917 industry establishments

Safer than 46% of graded establishments in this industry, whose median TCR is 3.1.

Grade C

More dangerous than peersSafer than peers

Narrower to Connecticut alone (the establishments it most directly competes with for workers and contracts): ranked #28 safest of 45 industry employers in Connecticut.

470 - Groton (109 employees, TCR 3.3) among 29 same-industry peers, split at the industry median of 98 employees and a TCR of 3.1

470 - Groton has more employees than the industry median and a higher injury rate than the industry's median TCR of 3.1. 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
2022	0.0	0.0	0
2020	2.6	0.0	1
2019	6.4	2.1	3
2018	4.4	2.2	2
2017	4.3	2.1	2
2016	2.0	0.0	1

OSHA ITA peer cross-reference

Establishment peer ledger

452210 · CT · Groton

2,917 industry employers nationwide with a credible TCR · 7,008 rated employers in Connecticut with headcount on file · 67 employers in Groton, CT · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	71354	WESTMINSTER, CO	3.3 TCR
NAICS-TCR	214 - Saginaw	SAGINAW, MN	3.3 TCR
NAICS-TCR	659 - Flagstaff	FLAGSTAFF, AZ	3.3 TCR
NAICS-TCR	1149 - St. Petersburg	ST. PETERSBURG, FL	3.3 TCR
STATE-SIZE	Eversource - Wtby Eagle St	WATERBURY	109 FTE
STATE-SIZE	Liuzzi Cheese	HAMDEN	109 FTE
STATE-SIZE	HP Hood	SUFFIELD	109 FTE
STATE-SIZE	Acme Monaco Corporation	NEW BRITAIN	109 FTE
CITY-NEAR	Electric Boat, Groton, CT.	Groton	15,116 FTE
CITY-NEAR	General Dynamics Electric Boat	Groton	12,075 FTE
CITY-NEAR	Pfizer Inc	Groton	3,201 FTE
CITY-NEAR	University of Connecticut- Avery Point Campus	Groton	314 FTE
NAT-TCR	659 - Flagstaff	Flagstaff, AZ	3.3 TCR
NAT-TCR	1149 - St. Petersburg	St. Petersburg, FL	3.3 TCR
NAT-TCR	1231 - Surprise South	Surprise, AZ	3.3 TCR
NAT-TCR	Lunds & Byerlys, Downtown Mpls	Minneapolis, MN	3.3 TCR
NAT-SIZE	423 - Southlake	Southlake, TX	109 FTE
NAT-SIZE	655 - Doylestown	Doylestown, PA	109 FTE
NAT-SIZE	710 - Poway	Poway, CA	109 FTE
NAT-SIZE	205 - Centerville-OH	Dayton, OH	109 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: 2022, 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.