Sewage treatment plants or facilities · Illinois
Four Rivers Sanitation Authority
Rockford, IL · ~113 workers · 3 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 7.8
- Avg TCR
- 1.2
- Industry avg
- 0
- Fatalities
The verdict
Four Rivers Sanitation Authority runs at 646% of its industry's injury rate - far more dangerous than the typical Sewage treatment plants or facilities workplace, earning a grade F.
- F
- Failing Safety Record
- 7.8
- avg TCR · per 100 workers
- 1.2
- industry benchmark (BLS)
- 15
- recordable injuries tracked
Grade compares Four Rivers Sanitation Authority's OSHA Total Case Rate to the BLS industry benchmark across 3 years of Form 300A filings (2016–2024). This reflects reported recordable injuries, not an independent safety inspection -- underreporting is a known limitation of employer self-recordkeeping.
Injury rate over time
Four Rivers Sanitation Authority's yearly Total Case Rate, against the 1.2 industry benchmark.
Where Four Rivers Sanitation Authority falls in its industry
443 Sewage treatment plants or fac establishmentsSafer than 23% of graded establishments in this industry, whose median TCR is 3.9.
Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #33 safest of 50 Sewage treatment plants or fac employers in Illinois.
Four Rivers Sanitation Authority has an average TCR of 7.8, which is 646% of the industry average (1.2) for Sewage treatment plants or facilities. This is significantly worse than average.
The letter grade is a transparent derived index PlainSafetyScore computes from public OSHA ITA and BLS benchmark data, not an official OSHA rating or safety certification. Full formula and thresholds: Methodology.
Trend analysis for Four Rivers Sanitation Authority
Between 2021 and 2023, Four Rivers Sanitation Authority's Total Case Rate improved from 11.9 to 3.9 recordable injuries per 100 full-time workers, a 67% decrease across 2 years of OSHA reporting.
The safest year on record was 2023, at a TCR of 3.9, while 2021 saw the highest rate, at 11.9, a spread of 8.0 points between the best and worst reporting years. That's a wide swing relative to the establishment's overall rate, worth checking the year-by-year table below for whether a single severe year is driving the average, rather than a sustained trend.
Summed across those 3 reporting years, Four Rivers Sanitation Authority recorded 15 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 3-year trend above alongside establishment size, since a larger workforce naturally accumulates more raw incidents even at a lower per-100-worker rate.
Verify This Employer with OSHA
All injury, illness, and fatality figures on this page are sourced from Four Rivers Sanitation Authority's own mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source, name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.
Verify on OSHA Establishment SearchSource: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 221320 - Sewage treatment plants or facilities.
DART Rate, Transparent Calculation (2023)
DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.
2 DART incidents × 200,000 ÷ 206,450 hours worked = 1.94 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| Four Rivers Sanitation Authority (this establishment) | 7.75 | OSHA ITA Form 300A, 3-year avg |
| Collection, treatment, and disposal of waste through a sewer system industry avg | 1.20 | BLS IIF, NAICS 221320 |
| Illinois state avg (all industries) | 4.73 | OSHA ITA, state-level rollup |
Industry benchmarks: Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (IIF) program
Reportable Incident Timeline
Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by Four Rivers Sanitation Authority to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.
- 2023: 4 reportable incidents · 3 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2022: 8 reportable incidents · 5 injuries, 3 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2021: 12 reportable incidents · 7 injuries, 5 illnesses, 0 fatalities - OSHA inspection records (case numbers)
Source: OSHA Inspection Information System (IMIS) - inspection case-number records
Year-by-Year Safety Data
| Year | TCR | DART | Injuries | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2023 | 3.9 | 1.9 | 3 | 1 | 0 |
| 2022 | 7.5 | 1.9 | 5 | 3 | 0 |
| 2021 | 11.9 | 6.9 | 7 | 5 | 0 |
What this grade means for you
Use this grade as a relative read on Four Rivers Sanitation Authority's reported OSHA injury record versus its Sewage treatment plants or facilities peers, not a verdict on whether any single site is safe today.
- At 646% of the Sewage treatment plants or facilities benchmark, Four Rivers Sanitation Authority reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider Sewage treatment plants or facilities sector, where injury rates vary widely, before comparing it in isolation. See the industry
- Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another
Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.
Frequently Asked Questions
What is Four Rivers Sanitation Authority's safety grade?
How many injuries has Four Rivers Sanitation Authority reported?
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Read our methodology - how this data is sourced, computed, and verified.
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Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.