Testing Laboratories · Michigan
Chelsea Proving Grounds
Chelsea, MI · ~636 workers · 9 years of OSHA Injury Tracking Application data.
- D
- Poor Safety Record
- 0.7
- Avg TCR
- 0.5
- Industry avg
- 0
- Fatalities
The verdict
Chelsea Proving Grounds runs at 132% of its industry's injury rate - more dangerous than the typical Testing Laboratories workplace, earning a grade D.
Chelsea Proving Grounds: 0.7 TCR = 132% of Testing Laboratories BLS 0.5 · 9y Form 300A (see methodology below)
Chelsea Proving Grounds safety composite
Chelsea Proving Grounds scores strongest on total case rate (tcr) (safer than 66% of same-industry peers) and weakest on dart rate (safer than 36%), 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).
52/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- C 0.66 per 100 workers
Safer than 66% of industry peers
- DART rate
- D 0.31 per 100 workers
Safer than 36% 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
−0.8
2016→2024
Chelsea Proving Grounds injury rate improved
Chelsea Proving Grounds's TCR fell 0.8 from 1.1 in 2016 to 0.3 in 2024. Peak filing year was 2019 at 1.2 TCR. In 2024, DART was 0.47× this establishment's average TCR (severity share of cases).
2016=1.1 · 2017=0.6 · 2018=0.5 · 2019=1.2 · 2020=0.3 · 2021=0.7 · 2022=0.5 · 2023=0.6 · 2024=0.3
OSHA ITA Form 300A scorecard
Establishment book 541380 · Chelsea, MI ABOVE-IND · MID
Grade D · TCR 0.7 · 132% of ind
- DART 0.3 DART
- RANK #22/31
- PHOTO Food Safety Net Serv…
- BOOK 9y book
- INJ 52 inj
- SIZE ~636 FTE
Nearest TCR peer: Food Safety Net Services, Ltd - Omaha Lab (0.0 TCR gap)
Read with this employer → · Industry book → · Michigan employers → · Look up another →
Chelsea Proving Grounds in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Chelsea Proving Grounds
0.7 TCR
- Food Safety Ne
Food Safety Net Services, Ltd - Omaha Lab
0.7 TCR
- Bloomington -
Bloomington - BIC
0.7 TCR
- INFINEON TECHN
INFINEON TECHNOLOGIES AMERICAS
0.7 TCR
- Tulsa FS (O&G)
Tulsa FS (O&G) - 1777
0.7 TCR
What this shows Chelsea Proving Grounds averages 0.7 TCR (132% of the Testing Laboratories BLS benchmark).
Chelsea Proving Grounds TCR series: 2016=1.1 · 2017=0.6 · 2018=0.5 · 2019=1.2 · 2020=0.3 · 2021=0.7 · 2022=0.5 · 2023=0.6 · 2024=0.3 · BLS 0.5
Where Chelsea Proving Grounds falls in its industry
232 Testing Laboratories establishmentsSafer than 66% of graded establishments in this industry, whose median TCR is 1.0.
Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #22 safest of 31 Testing Laboratories employers in Michigan.
Chelsea Proving Grounds has more employees than the Testing Laboratories median and a lower injury rate than the industry's median TCR of 1.0. 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 |
|---|---|---|---|---|---|
| 2024 | 0.3 | 0.3 | 3 | 0 | 0 |
| 2023 | 0.6 | 0.1 | 6 | 0 | 0 |
| 2022 | 0.5 | 0.2 | 5 | 0 | 0 |
| 2021 | 0.7 | 0.2 | 7 | 2 | 0 |
| 2020 | 0.3 | 0.1 | 3 | 0 | 0 |
| 2019 | 1.2 | 0.8 | 9 | 2 | 0 |
| 2018 | 0.5 | 0.4 | 5 | 0 | 0 |
| 2017 | 0.6 | 0.3 | 5 | 1 | 0 |
| 2016 | 1.1 | 0.8 | 9 | 1 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
541380 · MI · Chelsea
232 Testing Laboratories employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 27 employers in Chelsea, MI · 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 | Food Safety Net Services, Ltd - Omaha Lab | 0.7 TCR |
| NAICS-TCR | Bloomington - BIC | 0.7 TCR |
| NAICS-TCR | INFINEON TECHNOLOGIES AMERICAS | 0.7 TCR |
| NAICS-TCR | Tulsa FS (O&G) - 1777 | 0.7 TCR |
| STATE-SIZE | MillerKnoll, Inc, (Meridian) - 171st | 636 FTE |
| STATE-SIZE | 2965-635 | 636 FTE |
| STATE-SIZE | Jabil | 635 FTE |
| STATE-SIZE | Boars Head Holland | 638 FTE |
| CITY-NEAR | St. Joseph Mercy Chelsea Hospital | 1,135 FTE |
| CITY-NEAR | United Methodist Retirement Communities | 411 FTE |
| CITY-NEAR | Sheridan Books, Inc. | 329 FTE |
| CITY-NEAR | Chelsea Milling Company | 326 FTE |
| NAT-TCR | Store #65 | 0.7 TCR |
| NAT-TCR | Gatlin Plumbing & Heating, Inc. | 0.7 TCR |
| NAT-TCR | Courtyard by Marriott Pittsburgh Airport Settlers Ridge | 0.7 TCR |
| NAT-TCR | Axon | 0.7 TCR |
| NAT-SIZE | Behr Corporate HQ | 636 FTE |
| NAT-SIZE | CO-Colorado Springs | 636 FTE |
| NAT-SIZE | Nautique Boat Company, Inc. | 636 FTE |
| NAT-SIZE | 102-PL001 | 636 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.