PVC pipe manufacturing · Louisiana

Diamond Plastics Corp - Plaquemine

Name: Diamond Plastics Corp - Plaquemine Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Plaquemine, LA · ~55 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 1.5
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Diamond Plastics Corp - Plaquemine runs at 45% of its industry's injury rate - far safer than the typical PVC pipe manufacturing workplace, earning a grade A.

Diamond Plastics Corp - Plaquemine: 1.5 TCR = 45% of PVC pipe manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

Diamond Plastics Corp - Plaquemine safety composite

Diamond Plastics Corp - Plaquemine scores strongest on total case rate (tcr) (safer than 86% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

77/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 1.47 per 100 workers

Safer than 86% of industry peers
DART rate: B 0 per 100 workers

Safer than 84% 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%).

Diamond Plastics Corp - Plaquemine held a steady TCR band

Diamond Plastics Corp - Plaquemine's TCR held near 0.0 from 0.0 in 2016 to 0.0 in 2021. Peak filing year was 2017 at 3.8 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2016=0.0 · 2017=3.8 · 2018=3.3 · 2019=1.8 · 2020=0.0 · 2021=0.0

OSHA ITA Form 300A scorecard

Establishment book 326122 · Plaquemine, LA AT/BELOW-IND · SMALL

Grade A · TCR 1.5 · 45% of ind

DART 0.0 DART
RANK #3/6
PHOTO Westlake Pipe & Fitt…
BOOK 6y book
INJ 5 inj
SIZE ~55 FTE

Nearest TCR peer: Westlake Pipe & Fittings Leola (0.0 TCR gap)

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This site

1.5
Westlake Pipe

1.5
IDEX Health &

1.5
Tigre USA

1.5
Advanced Drain

1.5

What this shows Diamond Plastics Corp - Plaquemine averages 1.5 TCR (45% of the PVC pipe manufacturing BLS benchmark).

Diamond Plastics Corp - Plaquemine TCR series: 2016=0 · 2017=3.8 · 2018=3.3 · 2019=1.8 · 2020=0 · 2021=0 · BLS 3.3

Where Diamond Plastics Corp - Plaquemine falls in its industry

332 PVC pipe manufacturing establishments

Safer than 86% of graded establishments in this industry, whose median TCR is 3.7.

Grade A

More dangerous than peersSafer than peers

Narrower to Louisiana alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 6 PVC pipe manufacturing employers in Louisiana.

Diamond Plastics Corp - Plaquemine (55 employees, TCR 1.5) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 3.7

Diamond Plastics Corp - Plaquemine has fewer employees than the PVC pipe manufacturing median and a lower injury rate than the industry's median TCR of 3.7. 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
2021	0.0	0.0	0
2020	0.0	0.0	0
2019	1.8	0.0	1
2018	3.3	3.3	2
2017	3.8	3.8	2
2016	0.0	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

326122 · LA · Plaquemine

332 PVC pipe manufacturing employers nationwide with a credible TCR · 6,723 rated employers in Louisiana with headcount on file · 80 employers in Plaquemine, LA · 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	Westlake Pipe & Fittings Leola	LEOLA, PA	1.5 TCR
NAICS-TCR	IDEX Health & Science LLC	OAK HARBOR, WA	1.5 TCR
NAICS-TCR	Tigre USA	JANESVILLE, WI	1.5 TCR
NAICS-TCR	Advanced Drainage Systems Inc.--Livermore	CALHOUN, KY	1.5 TCR
STATE-SIZE	PetroTech Solutions, LLC	SIBLEY	55 FTE
STATE-SIZE	Jacobs Baton Rouge South Wastewater Treatment Plant (Main) & North Wastewater Treatment Plant OMI	BATON ROUGE	55 FTE
STATE-SIZE	Carencro, LA	CARENCRO	55 FTE
STATE-SIZE	105206 - I-10 Capital Corridor	BATON ROUGE	55 FTE
CITY-NEAR	The Dow Chemical Company Louisiana Operations	Plaquemine	1,559 FTE
CITY-NEAR	The Dow Chemical Company - Louisiana Operations	Plaquemine	1,514 FTE
CITY-NEAR	Dow, Inc. Plaquemine Operations	Plaquemine	1,378 FTE
CITY-NEAR	Performance Contractors, Inc. - Dow Plaq - Poly D	Plaquemine	687 FTE
NAT-TCR	Spring Dynamics, Inc.	Almont, MI	1.5 TCR
NAT-TCR	Kirby Risk Electrical Supply Peoria	Peoria, IL	1.5 TCR
NAT-TCR	ITL- Ohio	Fostoria, OH	1.5 TCR
NAT-TCR	Sutter Health System Office (470-22)	Burlingame, CA	1.5 TCR
NAT-SIZE	RGS Products Inc	Waterford, PA	55 FTE
NAT-SIZE	Yalesvill Elementary School	Wallingford, CT	55 FTE
NAT-SIZE	Harwood Complex	Luling, TX	55 FTE
NAT-SIZE	Sewell Infiniti of Fort Worth	Fort Worth, TX	55 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: 2021, 2020, 2019, 2018, 2017, 2016. 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.