EPA TRI Facility · Fabricated Metals
Permalok-A Northwest Pipe Co
Saint Louis, MO · Parent: Northwest Pipe Co
- Total releases
- 751 lbs
- Chemicals reported
- 1
- Latest report
- 2023
- Primary pathway
- Air Releases
AIR Form-R mix
Permalok-A Northwest Pipe Co: how the 751 lbs splits
751 lbs across all reported pathways
- Air Releases 724 lbs 96.4%
- Off-site Transfers 27 lbs 3.6%
Permalok-A Northwest Pipe Co's 751 lbs Form-R total is AIR - air releases is 96.4% of the bar. Next segment: off-site transfers at 3.6%. Leading chemical by pounds: Manganese.
TRACE volume AIR pathway CLEAN
Permalok-A Northwest Pipe Co is an EPA Toxics Release Inventory reporter in Saint Louis, MO, in the fabricated metals sector. It reported 89 lbs of releases across 1 chemical in 2023, and 751 lbs in total across its 2019-2023 reporting years. That ranks 14,261 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Missouri's 491 reporting TRI sites, pounds #1 is not chemical-count #1. Permalok-A Northwest Pipe Co is pounds #345 and chemical-count #430 at 751 lbs. Buick Mine/mill leads reported pounds (48.2M lbs) at 8 chemicals (chemical-count #66). Buzzi Unicem Usa-Cape Girardeau leads chemical count at 87 chemicals (904.5K lbs, pounds #44). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Patheon Biologics; Aerospace Composites Center LLC; Jost Chemical Co Inc; Lhb Industries. Similar-scale Fabricated Metals peers outside Missouri: Tate Access Floors Inc.; Scheerer Bearing Corp; Nelson Irrigation Corp; Niles Steel Tank. Other Northwest Pipe Co sites in this extract: Northwest Pipe Co; Northwest Pipe Co; Northwest Pipe Co; Northwest Pipe Co. Largest disclosed chemicals by pounds: Manganese.
Permalok-A Northwest Pipe Co stamps TRACE volume with a dominant AIR pathway (96.4% air releases) across 1 chemical. Cumulative Form-R extract: 751 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Tate Access Floors Inc. and Scheerer Bearing Corp.
Permalok-A Northwest Pipe Co vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
751 lbs 45th percentile higher than 45% 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
Permalok-A Northwest Pipe Co in the Fabricated Metals sector extract
Among the 3,421 Fabricated Metals facilities in this database, Permalok-A Northwest Pipe Co reports the 1,803rd-largest volume (751 lbs). Scale peers outside Missouri include Tate Access Floors Inc. and Scheerer Bearing Corp.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Permalok-A Northwest Pipe Co's total reported releases fell from 160 lb in 2022 to 89 lb in 2023, based on EPA TRI filings.
- Permalok-A Northwest Pipe Co's air releases fell from 160 lb in 2022 to 89 lb in 2023, based on EPA TRI filings.
Permalok-A Northwest Pipe Co Form-R facts
Compare this facility
See how Permalok-A Northwest Pipe Co stacks up against nearby facilities and the typical reporter.
99% less than the comparison
50% less 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 Permalok-A Northwest Pipe Co releases toxic chemicals into the environment. Total: 751 lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 46% (166 lbs to 89 lbs).
Permalok-A Northwest Pipe Co: annual Form-R pounds
TRACE site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Permalok-A Northwest Pipe Co year-over-year reported totals (decreased by 46% 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: Manganese.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 166 lbs | 1 |
| 2020 | 167 lbs | 1 |
| 2021 | 169 lbs | 1 |
| 2022 | 160 lbs | 1 |
| 2023 | 89 lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Manganese | 751 lbs | - |
Permalok-A Northwest Pipe Co · AIR-pathway site
Nearest TRI Facilities to Permalok-A Northwest Pipe Co
Closest other reporters in Missouri - including Patheon Biologics, Aerospace Composites Center LLC, Jost Chemical Co Inc, ordered by distance.
Showing 8 of 490 other reporting facilities in Missouri.
Similar Fabricated Metals Facilities
Other Fabricated Metals facilities with similar total release volumes (±80%), outside Missouri - e.g. Tate Access Floors Inc., Scheerer Bearing Corp, Nelson Irrigation Corp.
Other Northwest Pipe Co Facilities
Same-parent TRI sites ranked by reported releases - including Northwest Pipe Co, Northwest Pipe Co, Northwest Pipe Co.
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 Manganese; nearby reporters include Patheon Biologics. Permalok-A Northwest Pipe Co stamps TRACE volume · AIR 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 Permalok-A Northwest Pipe Co TRI extract (TRACE · AIR · CLEAN · lead Manganese) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Permalok-A Northwest Pipe Co totals are self-reported EPCRA §313 estimates for Saint Louis, MO, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 332312 · Fabricated Metals. 0.0% of St. Louis TRI pounds in this extract. Nearest ABS peer: Phoenix Services LLC (Δ 0 lbs). Pounds ≠ exposure.
Permalok-A Northwest Pipe Co stamps TRACE volume · AIR pathway · CLEAN · lead Manganese. 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