EPA TRI Facility · Fabricated Metals
Clow Valve Machine Shop
Oskaloosa, IA · Parent: McWane Inc
- Total releases
- 164 lbs
- Chemicals reported
- 5
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Clow Valve Machine Shop: how the 164 lbs splits
164 lbs across all reported pathways
- Off-site Transfers 123 lbs 75.1%
- Water Discharges 41 lbs 24.9%
Clow Valve Machine Shop's 164 lbs Form-R total is OFFSITE - off-site transfers is 75.1% of the bar. Next segment: water discharges at 24.9%. Leading chemical by pounds: Chromium.
TRACE volume OFFSITE pathway CARC-MID
Clow Valve Machine Shop is an EPA Toxics Release Inventory reporter in Oskaloosa, IA, in the fabricated metals sector. It reported 16 lbs of releases across 5 chemicals in 2023, and 164 lbs in total across its 2019-2023 reporting years. That ranks 16,065 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Iowa's 460 reporting TRI sites, pounds #1 is not chemical-count #1. Clow Valve Machine Shop is pounds #363 and chemical-count #144 at 164 lbs. Climax Molybdenum Co leads reported pounds (16.4M lbs) at 5 chemicals (chemical-count #117). Helena Industries LLC leads chemical count at 32 chemicals (9.4K lbs, pounds #247). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Clow Valve Co Foundry; Wacker Chemical Corp; Ajinomoto Health & Nutrition N.a. Inc.; Cargill Corn Milling. Similar-scale Fabricated Metals peers outside Iowa: Howmet Global Fastening Systems Inc.; Psp Industries - Iuka; Bourdon Forge Co Inc; American Metal Fibers Inc. Other McWane Inc sites in this extract: McWane Ductile-Utah; McWane Ductile-New Jersey; McWane Ductile Ohio; Tyler Union. Largest disclosed chemicals by pounds: Chromium; Lead; Copper; Manganese.
Clow Valve Machine Shop stamps TRACE volume with a dominant OFFSITE pathway (75.1% off-site transfers) across 5 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 164 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Howmet Global Fastening Systems Inc. and Psp Industries - Iuka.
Clow Valve Machine Shop vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
164 lbs 38th percentile higher than 38% 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
Clow Valve Machine Shop in the Fabricated Metals sector extract
Among the 3,421 Fabricated Metals facilities in this database, Clow Valve Machine Shop reports the 2,105th-largest volume (164 lbs). Scale peers outside Iowa include Howmet Global Fastening Systems Inc. and Psp Industries - Iuka.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Clow Valve Machine Shop Form-R facts
Compare this facility
See how Clow Valve Machine Shop stacks up against nearby facilities and the typical reporter.
100% less than the comparison
17% 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 Clow Valve Machine Shop releases toxic chemicals into the environment. Total: 164 lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 64% (45 lbs to 16 lbs).
Clow Valve Machine Shop: annual Form-R pounds
TRACE site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Clow Valve Machine Shop year-over-year reported totals (decreased by 64% 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: Chromium.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 45 lbs | 5 |
| 2020 | 55 lbs | 5 |
| 2021 | 23 lbs | 5 |
| 2022 | 25 lbs | 5 |
| 2023 | 16 lbs | 5 |
Clow Valve Machine Shop · OFFSITE-pathway site
Nearest TRI Facilities to Clow Valve Machine Shop
Closest other reporters in Iowa - including Clow Valve Co Foundry, Wacker Chemical Corp, Ajinomoto Health & Nutrition N.a. Inc., ordered by distance.
Showing 8 of 459 other reporting facilities in Iowa.
Similar Fabricated Metals Facilities
Other Fabricated Metals facilities with similar total release volumes (±80%), outside Iowa - e.g. Howmet Global Fastening Systems Inc., Psp Industries - Iuka, Bourdon Forge Co Inc.
Other McWane Inc Facilities
Same-parent TRI sites ranked by reported releases - including McWane Ductile-Utah, McWane Ductile-New Jersey, McWane Ductile Ohio.
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 Chromium, Lead, Copper, Manganese; nearby reporters include Clow Valve Co Foundry. Clow Valve Machine Shop stamps TRACE volume · OFFSITE pathway · CARC-MID 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 Clow Valve Machine Shop TRI extract (TRACE · OFFSITE · CARC-MID · lead Chromium) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Clow Valve Machine Shop totals are self-reported EPCRA §313 estimates for Oskaloosa, IA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 332911 · Fabricated Metals. 0.4% of Mahaska TRI pounds in this extract. Nearest ABS peer: Crm - New Richmond (Δ 0 lbs). Pounds ≠ exposure.
Clow Valve Machine Shop stamps TRACE volume · OFFSITE pathway · CARC-MID · lead Chromium. 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