Municipal Government · Michigan

Wastewater Treatment Serv

Ann Arbor, MI · ~33 workers · 7 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.4
Avg TCR
3.2
Industry avg
0
Fatalities
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The verdict

Wastewater Treatment Serv runs at 107% of its industry's injury rate - about level with the typical Municipal Government workplace, earning a grade C.

Wastewater Treatment Serv: 3.4 TCR = 107% of Municipal Government BLS 3.2 · 7y Form 300A (see methodology below)

Wastewater Treatment Serv safety composite

Wastewater Treatment Serv scores strongest on dart rate (safer than 84% of same-industry peers) and weakest on fatalities (safer than 52%), 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

65/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 3.43 per 100 workers

Safer than 56% of industry peers

DART rate
B 0 per 100 workers

Safer than 84% of industry peers

Fatalities
D 0

Safer than 52% 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%).

Wastewater Treatment Serv held a steady TCR band

Wastewater Treatment Serv's TCR held near 0.0 from 0.0 in 2017 to 0.0 in 2024. Peak filing year was 2021 at 10.2 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2017=0.0 · 2019=0.0 · 2020=6.9 · 2021=10.2 · 2022=7.0 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 926130 · Ann Arbor, MI ABOVE-IND · SMALL

Grade C · TCR 3.4 · 107% of ind

  • DART 0.0 DART
  • RANK #1/8
  • PHOTO Engineering
  • BOOK 7y book
  • INJ 7 inj
  • SIZE ~33 FTE

Nearest TCR peer: Engineering (0.2 TCR gap)

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

Wastewater Treatment Serv in the TCR neighbourhood

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

TCR

What this shows Wastewater Treatment Serv averages 3.4 TCR (107% of the Municipal Government BLS benchmark).

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

Wastewater Treatment Serv TCR series: 2017=0 · 2019=0 · 2020=6.9 · 2021=10.2 · 2022=7 · 2023=0 · 2024=0 · BLS 3.2

Where Wastewater Treatment Serv falls in its industry

43 Municipal Government establishments

Safer than 56% of graded establishments in this industry, whose median TCR is 4.6.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #1 safest of 8 Municipal Government employers in Michigan.

Wastewater Treatment Serv (33 employees, TCR 3.4) among 23 same-industry peers, split at the industry median of 82 employees and a TCR of 4.6 2×2 strategic matrix plotting 24 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 02,0004,0006,0008,000 05101520 Average employees Total Case Rate Wastewater Treatment Serv
Wastewater Treatment Serv (33 employees, TCR 3.4) among 23 same-industry peers, split at the industry median of 82 employees and a TCR of 4.6

Wastewater Treatment Serv has fewer employees than the Municipal Government median and a lower injury rate than the industry's median TCR of 4.6. 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 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 7.0 0.0 2 0 0
2021 10.2 10.2 3 0 0
2020 6.9 6.9 2 0 0
2019 0.0 0.0 0 0 0
2017 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

926130 · MI · Ann Arbor

43 Municipal Government employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 271 employers in Ann Arbor, 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 Engineering 3.6 TCR
NAICS-TCR City of Azusa - Electric and Water 3.0 TCR
NAICS-TCR York County-Public Works-Utilities Operations 3.0 TCR
NAICS-TCR Grand Rapids Public Utilities 2.6 TCR
STATE-SIZE PRH GROUP LLC 33 FTE
STATE-SIZE Three Rivers Svc Ctr 33 FTE
STATE-SIZE Alpena Power Company 33 FTE
STATE-SIZE Water Treatment City of Wyoming 33 FTE
CITY-NEAR Saint Joseph Mercy Hospital-AnnArbor 5,575 FTE
CITY-NEAR St. Joseph Mercy Hospital-Ann Arbor 5,554 FTE
CITY-NEAR IHA Health Services Corporation 2,533 FTE
CITY-NEAR Thomson Reuters - Ann Arbor 1,090 FTE
NAT-TCR Flexitank Inc. 3.4 TCR
NAT-TCR RMZ Farm Labor Services 3.4 TCR
NAT-TCR Rte Enterprises, Inc. 3.4 TCR
NAT-TCR KAL Manufacturing 3.4 TCR
NAT-SIZE Angelus Block - Fontana 33 FTE
NAT-SIZE C.P. Landscape Co., Inc. 33 FTE
NAT-SIZE Grand Aire, Inc. 33 FTE
NAT-SIZE Ennis Texas Plant #101 33 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: 2024, 2023, 2022, 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.