Southwest Shipyard LP
4 facilities · 1 state · 148.4K lbs total releases
According to the EPA Toxics Release Inventory, Southwest Shipyard LP is the reported parent of 4 Form R facilities across 1 state, disclosing 148.4K lbs of toxic releases. 9 of 21 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Texas (148.4K lbs). Those TRI figures remain self-reported disclosure pounds for Southwest Shipyard LP, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Southwest Shipyard LP: EPA TRI 2023 reporting year
Same facilities, both years
+226.8%
3 facilities that filed in 2022 and 2023
Whole inventory
+228.6%
13.4 thousand lb → 44.0 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Southwest Shipyard LP's total reported releases rose from 13.4 thousand lb in 2022 to 43.8 thousand lb in 2023, based on EPA TRI filings.
- Southwest Shipyard LP's water releases rose from 5 lb in 2022 to 253 lb in 2023, based on EPA TRI filings.
- Southwest Shipyard LP's air releases rose from 711 lb in 2022 to 27.2 thousand lb in 2023, based on EPA TRI filings.
- Southwest Shipyard LP's chemicals reported rose from 10 in 2022 to 14 in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Southwest Shipyard LP from filing to facility
Largest Form R sites under this parent: Southwest Shipyard L.P.; Southwest Shipyard L.P. - Brady Island; Southwest Shipyard L.P. - Galveston; Southwest Shipyard L.P. - Brady Island West. Neighbor parents on the disclosure ladder: Targa Resources Corp; Ineos US I Inc. Largest disclosed chemicals by pounds: Polycyclic aromatic compounds; Xylene (mixed isomers); Toluene; Ethylbenzene; 1,3-Butadiene. Heaviest-reporting states in this extract: Texas. Industry labels on the parent rollup: Transportation Equipment. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Largest Form R sites under this parent: Southwest Shipyard L.P.; Southwest Shipyard L.P. - Brady Island; Southwest Shipyard L.P. - Galveston; Southwest Shipyard L.P. - Brady Island West. Neighbor parents on the disclosure ladder: Targa Resources Corp; Ineos US I Inc. Largest disclosed chemicals by pounds: Polycyclic aromatic compounds; Xylene (mixed isomers); Toluene; Ethylbenzene; 1,3-Butadiene. Heaviest-reporting states in this extract: Texas. Industry labels on the parent rollup: Transportation Equipment.
Southwest Shipyard LP ranks #1,427 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Southwest Shipyard LP's TRI Form R footprint is concentrated in a single state (Texas), so statewide context matters more than a multi-state portfolio read. Releases are facility-concentrated: Southwest Shipyard L.P. accounts for most of Southwest Shipyard LP's disclosed pounds, so peer comparisons should weight that site, not an even portfolio average.
Parent aggregation for Southwest Shipyard LP follows facility-reported names. Compare the named neighbors (Targa Resources Corp; Ineos US I Inc) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Southwest Shipyard LP sits among TRI parents
Southwest Shipyard LP sits on a disclosure ladder beside Targa Resources Corp and Ineos US I Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Targa Resources Corp · rank #1,425 · 105.5M lbs
- Ineos US I Inc · rank #1,426 · 94.2M lbs
Largest chemicals disclosed by Southwest Shipyard LP
Polycyclic aromatic compounds; Xylene (mixed isomers); Toluene; Ethylbenzene; 1,3-Butadiene lead the Form R pound rollup for this parent, including filings such as Southwest Shipyard L.P.. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Polycyclic aromatic compounds | 77.6K lbs |
| Xylene (mixed isomers) | 56.5K lbs |
| Toluene | 2.3K lbs |
| Ethylbenzene | 2.3K lbs |
| 1,3-Butadiene | 2.2K lbs |
Facilities (4)
| Facility | Releases |
|---|---|
| Southwest Shipyard L.P. Channelview, TX | 136.0K lbs |
| Southwest Shipyard L.P. - Brady Island Houston, TX | 12.0K lbs |
| Southwest Shipyard L.P. - Galveston Galveston, TX | 250 lbs |
| Southwest Shipyard L.P. - Brady Island West Houston, TX | 90 lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Southwest Shipyard LP on total disclosed release pounds (148.4K lbs) and reporting facility count (4). Release-volume peers include Ptc Alliance LLC, Transdigm Inc, Esco Technologies Inc. Facility-count peers include A Stucki Holding Corp, Advanced Heat Treat Corp, Alleima USA LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Texas; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Southwest Shipyard LP's TRI parent record
From Southwest Shipyard LP, open Southwest Shipyard L.P. or compare against Targa Resources Corp rather than reading rank alone.
- Open the largest Form R site for Southwest Shipyard LP (Southwest Shipyard L.P. in TX). Largest facility
- Compare against Ineos US I Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Southwest Shipyard LP sits among all slug-merged TRI parents. All parent companies
Rank and peers (Targa Resources Corp, Ineos US I Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Southwest Shipyard LP's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.