PVC pipe manufacturing · Indiana
Diamond Plastics Corp - Muncie
Muncie, IN · ~47 workers · 6 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 7.6
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
Diamond Plastics Corp - Muncie runs at 231% of its industry's injury rate - far more dangerous than the typical PVC pipe manufacturing workplace, earning a grade F.
- F
- Failing Safety Record
- 7.6
- avg TCR · per 100 workers
- 3.3
- industry benchmark (BLS)
- 20
- recordable injuries tracked
Grade compares Diamond Plastics Corp - Muncie's OSHA Total Case Rate of 7.6 to the PVC pipe manufacturing BLS benchmark of 3.3 (231% of benchmark) across 6 years of Form 300A filings (2016–2024). <a href="/methodology">See methodology</a> for reporting-limitation caveats.
Injury rate over time
Diamond Plastics Corp - Muncie's yearly Total Case Rate, against the 3.3 industry benchmark.
Where Diamond Plastics Corp - Muncie falls in its industry
361 PVC pipe manufacturing establishmentsSafer than 14% of graded establishments in this industry, whose median TCR is 3.3.
Narrower to Indiana alone (the establishments it most directly competes with for workers and contracts): ranked #8 safest of 11 PVC pipe manufacturing employers in Indiana.
Trend analysis for Diamond Plastics Corp - Muncie
Between 2016 and 2021, Diamond Plastics Corp - Muncie's Total Case Rate improved from 4.5 to 3.9 recordable injuries per 100 full-time workers, a 14% decrease across 5 years of OSHA reporting.
The safest year on record was 2021, at a TCR of 3.9, while 2020 saw the highest rate, at 12.1, a spread of 8.2 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 6 reporting years, Diamond Plastics Corp - Muncie recorded 20 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 6-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
The 20 injuries, 2 illnesses shown on this page for Diamond Plastics Corp - Muncie are sourced from its own 6 years of 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 326122 - PVC pipe manufacturing.
DART Rate, Transparent Calculation (2021)
What is the DART rate formula?
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.
1 DART incidents × 200,000 ÷ 103,974 hours worked = 1.92 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| Diamond Plastics Corp - Muncie (this establishment) | 7.63 | OSHA ITA Form 300A, 6-year avg |
| Pipe fittings, rigid plastics, manufacturing industry avg | 3.30 | BLS IIF, NAICS 326122 |
| Indiana state avg (all industries) | 4.53 | 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 Diamond Plastics Corp - Muncie 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.
- 2021: 2 reportable incidents · 2 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2020: 6 reportable incidents · 6 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2019: 3 reportable incidents · 2 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2018: 5 reportable incidents · 5 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2017: 4 reportable incidents · 3 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2016: 2 reportable incidents · 2 injuries, 0 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 |
|---|---|---|---|---|---|
| 2021 | 3.9 | 1.9 | 2 | 0 | 0 |
| 2020 | 12.1 | 8.0 | 6 | 0 | 0 |
| 2019 | 6.5 | 2.2 | 2 | 1 | 0 |
| 2018 | 9.8 | 7.8 | 5 | 0 | 0 |
| 2017 | 9.1 | 6.8 | 3 | 1 | 0 |
| 2016 | 4.5 | 4.5 | 2 | 0 | 0 |
What this grade means for you
Use this grade as a relative read on Diamond Plastics Corp - Muncie's reported OSHA injury record versus its PVC pipe manufacturing peers, not a verdict on whether any single site is safe today.
- At 231% of the PVC pipe manufacturing benchmark, Diamond Plastics Corp - Muncie reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider PVC pipe manufacturing 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 Diamond Plastics Corp - Muncie's safety grade?
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Similar Employers
Matched by safety record across the industry, by workforce size within Indiana, and by nearby establishments in Muncie - a different peer set than the category browse links below.
Similar TCR (~7.6)
Similar size (~47 workers)
Read our methodology - how this data is sourced, computed, and verified.
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.