EPA TRI Facility · Transportation Equipment
Detyens Shipyard
North Charleston, SC · Parent: Detyens Shipyard
- Total releases
- 189.7K lbs
- Chemicals reported
- 3
- Latest report
- 2023
- Primary pathway
- Air Releases
MIXED Form-R mix
Detyens Shipyard: how the 189.7K lbs splits
189.7K lbs across all reported pathways
- Air Releases 111.1K lbs 58.6%
- Off-site Transfers 77.1K lbs 40.7%
- Water Discharges 1.4K lbs 0.8%
Detyens Shipyard's 189.7K lbs Form-R total is MIXED - air releases is 58.6% of the bar. Next segment: off-site transfers at 40.7%. Leading chemical by pounds: Xylene (mixed isomers).
MID volume MIXED pathway CLEAN
Detyens Shipyard is an EPA Toxics Release Inventory reporter in North Charleston, SC, in the transportation equipment sector. It reported 53.1K lbs of releases across 3 chemicals in 2023, and 189.7K lbs in total across its 2019-2023 reporting years. That ranks 3,342 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In South Carolina's 574 reporting TRI sites, pounds #1 is not chemical-count #1. Detyens Shipyard is pounds #109 and chemical-count #217 at 189.7K lbs. Oceanagold Haile Gold Mine leads reported pounds (30.2M lbs) at 19 chemicals (chemical-count #14). Giant Cement Co leads chemical count at 90 chemicals (53.3K lbs, pounds #185). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Argos North Charleston Concrete Plant; Concrete Pipe & Precast Llc-Charleston Plant; Salisbury Electrical Safety LLC; Knight Redi-Mix Inc. - Plant 5. Similar-scale Transportation Equipment peers outside South Carolina: Element Materials Technology Hartford Inc.; Gunderson Marine LLC; Boeing Commercial Airplane Group - Renton; Kyb Americas Corp. Largest disclosed chemicals by pounds: Xylene (mixed isomers); Copper; Zinc compounds.
Detyens Shipyard is a MID · MIXED-pathway Form-R site in North Charleston, SC: 189.7K lbs across 3 chemicals. No single media clears 70% of the bar (lead segment air releases at 58.6%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Element Materials Technology Hartford Inc. and Gunderson Marine LLC.
Detyens Shipyard vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
190K lbs Top 13% higher than 87% 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
Detyens Shipyard: Xylene (mixed isomers)-led volume
Among the 1,603 Transportation Equipment facilities in this database, Detyens Shipyard reports the 188th-largest volume, placing it in the top 11.7% of its sector. Its reported volume is concentrated rather than spread: Xylene (mixed isomers) alone is 68.1% of the total. Scale peers outside South Carolina include Element Materials Technology Hartford Inc. and Gunderson Marine LLC.
Concentrated means ≥60% of Detyens Shipyard's pounds in one chemical - here Xylene (mixed isomers) at 68.1%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Detyens Shipyard's total reported releases rose from 36.6 thousand lb in 2022 to 53.1 thousand lb in 2023, based on EPA TRI filings.
- Detyens Shipyard's water releases rose from 0 lb in 2022 to 61 lb in 2023, based on EPA TRI filings.
- Detyens Shipyard's off-site transfers rose from 12.5 thousand lb in 2022 to 22.5 thousand lb in 2023, based on EPA TRI filings.
- Detyens Shipyard's air releases rose from 24.1 thousand lb in 2022 to 30.5 thousand lb in 2023, based on EPA TRI filings.
Detyens Shipyard Form-R facts
Compare this facility
See how Detyens Shipyard stacks up against nearby facilities and the typical reporter.
210734.0× more than the comparison
3.0× 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 Detyens Shipyard releases toxic chemicals into the environment. Total: 189.7K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 16% (45.8K lbs to 53.1K lbs).
Detyens Shipyard: annual Form-R pounds
MID site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Detyens Shipyard year-over-year reported totals (increased by 16% 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: Xylene (mixed isomers).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 45.8K lbs | 3 |
| 2020 | 23.5K lbs | 3 |
| 2021 | 30.7K lbs | 3 |
| 2022 | 36.6K lbs | 3 |
| 2023 | 53.1K lbs | 3 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Xylene (mixed isomers) | 129.2K lbs | - |
| Copper | 38.7K lbs | - |
| Zinc compounds | 21.8K lbs | - |
Detyens Shipyard in Charleston
Nearest TRI Facilities to Detyens Shipyard
Closest other reporters in South Carolina - including Argos North Charleston Concrete Plant, Concrete Pipe & Precast Llc-Charleston Plant, Salisbury Electrical Safety LLC, ordered by distance.
Showing 8 of 573 other reporting facilities in South Carolina.
Similar Transportation Equipment Facilities
Other Transportation Equipment facilities with similar total release volumes (±80%), outside South Carolina - e.g. Element Materials Technology Hartford Inc., Gunderson Marine LLC, Boeing Commercial Airplane Group - Renton.
Compare beyond South Carolina
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Detyens Shipyard on cumulative reported pounds (189.7K lbs) and distinct chemical count (3). Release-pound peers include Macdermid Inc, Multi-Chem Group Sonora Tx Facility, Roseburg Forest Products Co. - Coquille Plywood. Chemical-count peers include Industrial C&s of Pr LLC Arecibo Plant, Island Litho Corp., Fenwal International Inc. 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.
- Macdermid Inc Ferndale, MI · Chemicals 189.8K lbs reported
- Multi-Chem Group Sonora Tx Facility Sonora, TX · Chemicals 189.8K lbs reported
- Roseburg Forest Products Co. - Coquille Plywood Coquille, OR · Wood Products 189.4K lbs reported
- Unimetal Surface Finishing LLC Naugatuck, CT · Fabricated Metals 190.0K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
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 Xylene (mixed isomers), Copper, Zinc compounds; nearby reporters include Argos North Charleston Concrete Plant. Detyens Shipyard stamps MID volume · MIXED pathway · CLEAN 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 Detyens Shipyard TRI extract (MID · MIXED · CLEAN · lead Xylene (mixed isomers)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Detyens Shipyard totals are self-reported EPCRA §313 estimates for North Charleston, SC, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 336611 · Transportation Equipment. 2.6% of Charleston TRI pounds in this extract. Nearest ABS peer: A O Smith Water Products Co (Δ 64 lbs). Pounds ≠ exposure.
Detyens Shipyard stamps MID · MIXED pathway (air releases leads at 58.6%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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