EPA TRI Facility · Chemicals
Interplastic Corp
Hawthorne, CA · Parent: Ip Corp
- Total releases
- 23.5K lbs
- Chemicals reported
- 6
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Interplastic Corp: how the 23.5K lbs splits
23.5K lbs across all reported pathways
- Air Releases 19.8K lbs 84.0%
- Off-site Transfers 3.8K lbs 16.0%
Interplastic Corp's 23.5K lbs Form-R total is AIR - air releases is 84.0% of the bar. Next segment: off-site transfers at 16.0%. Leading chemical by pounds: Styrene.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
LIGHT volume AIR pathway CARC-HEAVY
Interplastic Corp is an EPA Toxics Release Inventory reporter in Hawthorne, CA, in the chemicals sector. It reported 2.1K lbs of releases across 6 chemicals in 2023, and 23.5K lbs in total across its 2019-2023 reporting years. That ranks 7,871 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In California's 1,149 reporting TRI sites, pounds #1 is not chemical-count #1. Interplastic Corp is pounds #297 and chemical-count #174 at 23.5K lbs. Clean Harbors Buttonwillow LLC leads reported pounds (50.4M lbs) at 45 chemicals (chemical-count #2). Chevron Products Co Richmond Refinery leads chemical count at 46 chemicals (3.0M lbs, pounds #13). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Teledyne Defense Electronics LLC DBA Teledyne Relays; Osi Electronics; Sps Technologies LLC DBA Pb Fasteners; Space Lok Ink. Similar-scale Chemicals peers outside California: Polymerics Inc; Milamar Coatings LLC; Cygnet Automated Cleaning LLC; Pvs Technologies Inc. Other Ip Corp sites in this extract: Molding Products LLC; Interplastic Corp-Fort Wright; Interplastic Corp; Interplastic Corp. Largest disclosed chemicals by pounds: Styrene; Maleic anhydride; Ethylene glycol; Phthalic anhydride.
Interplastic Corp stamps LIGHT volume with a dominant AIR pathway (84.0% air releases) across 6 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 23.5K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Polymerics Inc and Milamar Coatings LLC.
Interplastic Corp vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
24K lbs Top 30% higher than 70% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Interplastic Corp: Styrene-led volume
Among the 3,917 Chemicals facilities in this database, Interplastic Corp reports the 1,660th-largest volume (23.5K lbs). Its reported volume is concentrated rather than spread: Styrene alone is 90.4% of the total. Carcinogen-classified chemicals make up 90.4% of the reported pounds, not just of the chemical count. Scale peers outside California include Polymerics Inc and Milamar Coatings LLC.
Concentrated means ≥60% of Interplastic Corp's pounds in one chemical - here Styrene at 90.4%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Interplastic Corp's total reported releases fell from 2.4 thousand lb in 2022 to 2.1 thousand lb in 2023, based on EPA TRI filings.
- Interplastic Corp's off-site transfers rose from 0 lb in 2022 to 300 lb in 2023, based on EPA TRI filings.
- Interplastic Corp's air releases fell from 2.4 thousand lb in 2022 to 1.8 thousand lb in 2023, based on EPA TRI filings.
Interplastic Corp Form-R facts
Compare this facility
See how Interplastic Corp stacks up against nearby facilities and the typical reporter.
138.3× more than the comparison
6.0× more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Interplastic Corp releases toxic chemicals into the environment. Total: 23.5K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 80% (10.6K lbs to 2.1K lbs).
Interplastic Corp: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Interplastic Corp year-over-year reported totals (decreased by 80% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Styrene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 10.6K lbs | 6 |
| 2020 | 4.4K lbs | 6 |
| 2021 | 4.0K lbs | 6 |
| 2022 | 2.4K lbs | 6 |
| 2023 | 2.1K lbs | 6 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 6 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Styrene | 21.3K lbs | Carcinogen |
| Maleic anhydride | 1.1K lbs | - |
| Ethylene glycol | 552 lbs | - |
| Phthalic anhydride | 309 lbs | - |
| Dicyclopentadiene | 226 lbs | - |
| Methyl methacrylate | 78 lbs | - |
Interplastic Corp · AIR-pathway site
Nearest TRI Facilities to Interplastic Corp
Closest other reporters in California - including Teledyne Defense Electronics LLC DBA Teledyne Relays, Osi Electronics, Sps Technologies LLC DBA Pb Fasteners, ordered by distance.
Showing 8 of 1,148 other reporting facilities in California.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside California - e.g. Polymerics Inc, Milamar Coatings LLC, Cygnet Automated Cleaning LLC.
Compare beyond California
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Interplastic Corp on cumulative reported pounds (23.5K lbs) and distinct chemical count (6). Release-pound peers include Art Galvanizing Works Inc, May Manufacturing LLC (dba Artesian Spas), St Louis Marble Co. Chemical-count peers include Eaton Intelligent Power Ltd, Leoni Wire Inc, Turf Care Supply-Hatfield Plant. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- Art Galvanizing Works Inc Cleveland, OH · Fabricated Metals 23.5K lbs reported
- May Manufacturing LLC (dba Artesian Spas) Las Vegas, NV · Plastics and Rubber 23.5K lbs reported
- St Louis Marble Co Fenton, MO · Plastics and Rubber 23.5K lbs reported
- Al-Co Products Inc. Latty, OH · Plastics and Rubber 23.5K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Ip Corp Facilities
Same-parent TRI sites ranked by reported releases - including Molding Products LLC, Interplastic Corp-Fort Wright, Interplastic Corp.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Styrene, Maleic anhydride, Ethylene glycol, Phthalic anhydride; nearby reporters include Teledyne Defense Electronics LLC DBA Teledyne Relays. Interplastic Corp stamps LIGHT volume · AIR pathway · CARC-HEAVY carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Interplastic Corp TRI extract (LIGHT · AIR · CARC-HEAVY · lead Styrene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Interplastic Corp totals are self-reported EPCRA §313 estimates for Hawthorne, CA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325211 · Chemicals. 0.1% of Los Angeles TRI pounds in this extract. Nearest ABS peer: Art Galvanizing Works Inc (Δ 4 lbs). Pounds ≠ exposure.
Interplastic Corp stamps LIGHT volume · AIR pathway · CARC-HEAVY · lead Styrene. PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov