Mail and Parcel Delivery · Michigan

258820-South Lyon Po

Name: 258820-South Lyon Po Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

South Lyon, MI · ~47 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 10.7
Avg TCR: 4.5
Industry avg: 0
Fatalities

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The verdict

258820-South Lyon Po runs at 237% of its industry's injury rate - far more dangerous than the typical Mail and Parcel Delivery workplace, earning a grade F.

258820-South Lyon Po: 10.7 TCR = 237% of Mail and Parcel Delivery BLS 4.5 · 6y Form 300A (see methodology below)

258820-South Lyon Po safety composite

258820-South Lyon Po scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 11%), 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).

24/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 10.65 per 100 workers

Safer than 19% of industry peers
DART rate: F 14.2 per 100 workers

Safer than 11% 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

258820-South Lyon Po: 7.3 → 14.2 TCR

Peak year 2019 @ 16.1 TCR · DART/TCR 1.33× in 2022

258820-South Lyon Po's TCR rose 6.8 from 7.3 in 2017 to 14.2 in 2022. Peak filing year was 2019 at 16.1 TCR. In 2022, DART was 1.33× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 491110 · South Lyon, MI ABOVE-IND · SMALL

Grade F · TCR 10.7 · 237% of ind

DART 14.2 DART
RANK #288/464
PHOTO ASHLAND_1353498
BOOK 6y book
INJ 21 inj
SIZE ~47 FTE

Nearest TCR peer: ASHLAND_1353498 (0.0 TCR gap)

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

This site

10.7
ASHLAND_135349

10.7
YUCCA VALLEY_1

10.7
500280-BARRE V

10.7
338595-UNION P

10.7

What this shows 258820-South Lyon Po averages 10.7 TCR (237% of the Mail and Parcel Delivery BLS benchmark).

258820-South Lyon Po TCR series: 2017=7.3 · 2018=12.1 · 2019=16.1 · 2020=11.8 · 2021=2.4 · 2022=14.2 · BLS 4.5

Where 258820-South Lyon Po falls in its industry

13,818 Mail and Parcel Delivery establishments

Safer than 19% of graded establishments in this industry, whose median TCR is 6.8.

Grade F

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #288 safest of 464 Mail and Parcel Delivery employers in Michigan.

258820-South Lyon Po (47 employees, TCR 10.7) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 6.8

258820-South Lyon Po has fewer employees than the Mail and Parcel Delivery median and a higher injury rate than the industry's median TCR of 6.8. 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	DART	Injuries	Illnesses
2022	14.2	14.2	1	5
2021	2.4	2.4	1	0
2020	11.8	11.8	4	1
2019	16.1	9.2	7	0
2018	12.1	9.7	5	0
2017	7.3	2.5	3	0

OSHA ITA peer cross-reference

Establishment peer ledger

491110 · MI · South Lyon

13,818 Mail and Parcel Delivery employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 19 employers in South Lyon, MI · 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	ASHLAND_1353498	ASHLAND, OR	10.7 TCR
NAICS-TCR	YUCCA VALLEY_1388543	YUCCA VALLEY, CA	10.7 TCR
NAICS-TCR	500280-BARRE VT PO	BARRE, VT	10.7 TCR
NAICS-TCR	338595-UNION PO	UNION, NJ	10.7 TCR
STATE-SIZE	Nash Greenhouses, LLC	KALAMAZOO	47 FTE
STATE-SIZE	Red Arrow Dairy	GRAND RAPIDS	47 FTE
STATE-SIZE	SEMCO Energy Gas Company - BC	BATTLE CREEK	47 FTE
STATE-SIZE	Operations and Maintenance	FLINT	47 FTE
CITY-NEAR	South Lyon Community Schools - 63240	South Lyon	1,048 FTE
CITY-NEAR	Michigan Seamless Tube	South Lyon	182 FTE
CITY-NEAR	Vector Group LLC	South Lyon	136 FTE
CITY-NEAR	018-00639	South Lyon	126 FTE
NAT-TCR	055515-Oak-Laurel Sta	Oakland, CA	10.7 TCR
NAT-TCR	338595-Union Po	Union, NJ	10.7 TCR
NAT-TCR	500280-Barre Vt Po	Barre, VT	10.7 TCR
NAT-TCR	G&G Steel Cordova	Cordova, AL	10.7 TCR
NAT-SIZE	174664-Lawrenceburg Po	Lawrenceburg, IN	47 FTE
NAT-SIZE	182428-Dsm-East Side Carrier Anx	Des Moines, IA	47 FTE
NAT-SIZE	182436-Dsm-Urbandale Br	Urbandale, IA	47 FTE
NAT-SIZE	568140-Thiensville Po	Thiensville, WI	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: 2022, 2021, 2020, 2019, 2018, 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.