Employer · Massachusetts

Chelsea Ma

Name: Chelsea Ma Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Chelsea, MA · ~47 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.5
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Chelsea Ma runs at 14% of its industry's injury rate - far safer than the typical industry workplace, earning a grade A.

Chelsea Ma: 0.5 TCR = 14% of industry BLS 3.3 · 4y Form 300A (see methodology below)

Chelsea Ma safety composite

Chelsea Ma scores strongest on total case rate (tcr) (safer than 91% 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).

77/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): A 0.47 per 100 workers

Safer than 91% of industry peers
DART rate: B 0 per 100 workers

Safer than 80% 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%).

Chelsea Ma held a steady TCR band

Chelsea Ma's TCR held near 0.0 from 0.0 in 2017 to 0.0 in 2021. Peak filing year was 2019 at 1.9 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2017=0.0 · 2019=1.9 · 2020=0.0 · 2021=0.0

OSHA ITA Form 300A scorecard

Establishment book 334419 · Chelsea, MA AT/BELOW-IND · SMALL

Grade A · TCR 0.5 · 14% of ind

DART 0.0 DART
RANK #1/21
PHOTO NGSP-W528
BOOK 4y book
INJ 1 inj
SIZE ~47 FTE

Nearest TCR peer: NGSP-W528 (0.0 TCR gap)

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0.5
NGSP-W528

0.5
Lynn Electroni

0.5
BAE Systems El

0.4
Moog, Inc. - B

0.4

What this shows Chelsea Ma averages 0.5 TCR (14% of the industry BLS benchmark).

Chelsea Ma TCR series: 2017=0 · 2019=1.9 · 2020=0 · 2021=0 · BLS 3.3

Where Chelsea Ma falls in its industry

334 industry establishments

Safer than 91% of graded establishments in this industry, whose median TCR is 1.8.

Grade A

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #1 safest of 21 industry employers in Massachusetts.

Chelsea Ma (47 employees, TCR 0.5) among 29 same-industry peers, split at the industry median of 108 employees and a TCR of 1.8

Chelsea Ma has fewer employees than the industry median and a lower injury rate than the industry's median TCR of 1.8. 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	Injuries
2021	0.0	0
2020	0.0	0
2019	1.9	1
2017	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

334419 · MA · Chelsea

334 industry employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 52 employers in Chelsea, MA · 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	NGSP-W528	CHARLOTTE, NC	0.5 TCR
NAICS-TCR	Lynn Electronics - North Wales	NORTH WALES, PA	0.5 TCR
NAICS-TCR	BAE Systems Electronic Systems PTP	HUDSON, NH	0.4 TCR
NAICS-TCR	Moog, Inc. - Blacksburg South	BLACKSBURG, VA	0.4 TCR
STATE-SIZE	Rockwell Roofing, Inc	LEOMINSTER	47 FTE
STATE-SIZE	Pioneer Valley Photovoltaics Cooperative, Inc	GREENFIELD	47 FTE
STATE-SIZE	MONSON-MA23	MONSON	47 FTE
STATE-SIZE	855-NiSource-Westborough MA	WESTBOROUGH	47 FTE
CITY-NEAR	Market Basket #32	Chelsea	683 FTE
CITY-NEAR	State Garden, Inc.	Chelsea	425 FTE
CITY-NEAR	Kayem Foods, Inc	Chelsea	308 FTE
CITY-NEAR	240055-BOS-CHELSEA CARRIER ANNEX	Chelsea	284 FTE
NAT-TCR	Ehmke Manufacturing Company, Inc.	Philadelphia, PA	0.5 TCR
NAT-TCR	Cabot Corporation Canal Plant	Franklin, LA	0.5 TCR
NAT-TCR	Indian Point Entergy Nuclear Operations Inc	Buchanan, NY	0.5 TCR
NAT-TCR	HQ Commerce	Raleigh, NC	0.5 TCR
NAT-SIZE	Prince Service & Mfg, Inc.	Macon, GA	47 FTE
NAT-SIZE	Brothers Market	Savannah, MO	47 FTE
NAT-SIZE	JTI	Wahpeton, ND	47 FTE
NAT-SIZE	GP Rubber	Haltom, TX	47 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, 2017. 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.