Collection, treatment, and disposal of waste through a sewer system · Tennessee

Hamilton County WWTA (Water & Wastewater Treatment Authority)

Chattanooga, TN · ~33 workers · 5 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
6.0
Avg TCR
1.2
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Hamilton County WWTA (Water & Wastewater Treatment Authority) runs at 498% of its industry's injury rate - far more dangerous than the typical Collection, treatment, and disposal of waste through a sewer system workplace, earning a grade F.

Hamilton County WWTA (Water & Wastewater Treatment Authority): 6.0 TCR = 498% of Collection, treatment, and disposal of waste through a sewer system BLS 1.2 · 5y Form 300A (see methodology below)

Hamilton County WWTA (Water & Wastewater Treatment Authority) safety composite

Hamilton County WWTA (Water & Wastewater Treatment Authority) scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (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).

C

55/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 5.98 per 100 workers

Safer than 36% 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%).

TCR Δ

−11.2

2016→2020

Hamilton County WWTA (Water & Wastewater Treatment Authority) injury rate improved

Hamilton County WWTA (Water & Wastewater Treatment Authority)'s TCR fell 11.2 from 14.5 in 2016 to 3.3 in 2020. Peak filing year was 2016 at 14.5 TCR. In 2020, DART was 0× this establishment's average TCR (severity share of cases).

2016=14.5 · 2017=3.2 · 2018=6.0 · 2019=3.1 · 2020=3.3

OSHA ITA Form 300A scorecard

Establishment book 221320 · Chattanooga, TN ABOVE-IND · SMALL

Grade F · TCR 6.0 · 498% of ind

  • DART 0.0 DART
  • RANK #3/7
  • PHOTO Warren Facility Wate…
  • BOOK 5y book
  • INJ 7 inj
  • SIZE ~33 FTE

Nearest TCR peer: Warren Facility Water Reclamation Plant (0.0 TCR gap)

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

Hamilton County WWTA (Water & Wastewater Treatment Authority) in the TCR neighbourhood

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

TCR

What this shows Hamilton County WWTA (Water & Wastewater Treatment Authority) averages 6.0 TCR (498% of the Collection, treatment, and disposal of waste through a sewer system BLS benchmark).

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

Hamilton County WWTA (Water & Wastewater Treatment Authority) TCR series: 2016=14.5 · 2017=3.2 · 2018=6 · 2019=3.1 · 2020=3.3 · BLS 1.2

Where Hamilton County WWTA (Water & Wastewater Treatment Authority) falls in its industry

400 Collection, treatment, and dis establishments

Safer than 36% of graded establishments in this industry, whose median TCR is 4.4.

More dangerous than peersSafer than peers

Narrower to Tennessee alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 7 Collection, treatment, and dis employers in Tennessee.

Hamilton County WWTA (Water & Wastewater Treatment Authority) (33 employees, TCR 6.0) among 29 same-industry peers, split at the industry median of 47 employees and a TCR of 4.4 2×2 strategic matrix plotting 30 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 0200400600 0510152025 Average employees Total Case Rate Hamilton County WWTA (Water & Wastewater Treatment Authority)
Hamilton County WWTA (Water & Wastewater Treatment Authority) (33 employees, TCR 6.0) among 29 same-industry peers, split at the industry median of 47 employees and a TCR of 4.4

Hamilton County WWTA (Water & Wastewater Treatment Authority) has fewer employees than the Collection, treatment, and disposal of w median and a higher injury rate than the industry's median TCR of 4.4. 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
2020 3.3 0.0 1 0 0
2019 3.1 0.0 1 0 0
2018 6.0 6.0 2 0 0
2017 3.2 0.0 1 0 0
2016 14.5 7.3 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

221320 · TN · Chattanooga

400 Collection, treatment, and disposal of waste through a sewer system employers nationwide with a credible TCR · 10,743 rated employers in Tennessee with headcount on file · 695 employers in Chattanooga, TN · 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 Warren Facility Water Reclamation Plant 6.0 TCR
NAICS-TCR Newport RI 6.0 TCR
NAICS-TCR Waste Water Treatment Plant 5.9 TCR
NAICS-TCR CMUD-Water 6.1 TCR
STATE-SIZE JC Curtis Construction Co., LLC 33 FTE
STATE-SIZE TDH Inc 33 FTE
STATE-SIZE ORION 33 FTE
STATE-SIZE Robert S. Biscan & Company 33 FTE
CITY-NEAR CHATTANOOGA COKE 8,650 FTE
CITY-NEAR CHATTANOOGA FOOD 8,650 FTE
CITY-NEAR USXpress 7,385 FTE
CITY-NEAR Cardiology GB 6,606 FTE
NAT-TCR Saratoga Eagle Sales and Service 6.0 TCR
NAT-TCR Accella Polyurethane Systems LLC - St. Louis 6.0 TCR
NAT-TCR Meek's Springdale 6.0 TCR
NAT-TCR Belvidere Fire Department 6.0 TCR
NAT-SIZE Fort Lee Commissary 33 FTE
NAT-SIZE Southeastern (Uncasville/Gales Ferry) 33 FTE
NAT-SIZE Courtyard Atlanta Buckhead 33 FTE
NAT-SIZE Metal Castings of Colorado, Inc. 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: 2020, 2019, 2018, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.