EPA TRI Facility · Chemicals
Van Diest Supply Co
Webster City, IA
- Total releases
- 191.1K lbs
- Chemicals reported
- 25
- Carcinogens
- 3
- Primary pathway
- Air Releases
AIR Form-R mix
Van Diest Supply Co: how the 191.1K lbs splits
191.1K lbs across all reported pathways
- Air Releases 143.0K lbs 74.8%
- Off-site Transfers 46.6K lbs 24.4%
- Water Discharges 1.4K lbs 0.8%
- Land Disposal 0 lbs <0.1%
Van Diest Supply Co's 191.1K lbs Form-R total is AIR - air releases is 74.8% of the bar. Next segment: off-site transfers at 24.4%. Leading chemical by pounds: Atrazine.
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.
MID volume AIR pathway CARC-LEAN
Van Diest Supply Co is an EPA Toxics Release Inventory reporter in Webster City, IA, in the chemicals sector. It reported 32.2K lbs of releases across 20 chemicals in 2023, and 191.1K lbs in total across its 2019-2023 reporting years. That ranks 3,321 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. Van Diest Supply Co is pounds #85 and chemical-count #4 at 191.1K 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). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: New Cooperative Inc-Duncombe Mill; Koch Fertilizer Ft. Dodge LLC; Certainteed Gypsum; Ccm - Ft. Dodge South. Similar-scale Chemicals peers outside Iowa: Polypeptide Laboratories Inc.; Metton America Inc; Green Plains Obion LLC; Multi-Chem Group Sonora Tx Facility. Largest disclosed chemicals by pounds: Atrazine; Ammonia; 2,4-D 2-ethylhexyl ester; Pendimethalin.
Van Diest Supply Co stamps MID volume with a dominant AIR pathway (74.8% air releases) across 25 chemicals · 3 carcinogen-classified. Cumulative Form-R extract: 191.1K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Polypeptide Laboratories Inc. and Metton America Inc.
Van Diest Supply Co vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
191K 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
Van Diest Supply Co inside Hamilton's TRI pounds
Among the 3,917 Chemicals facilities in this database, Van Diest Supply Co reports the 646th-largest volume, placing it in the top 16.5% of its sector. This one site accounts for 65.6% of every pound reported in Hamilton. Scale peers outside Iowa include Polypeptide Laboratories Inc. and Metton America Inc.
County-dominant here means ≥25% of Hamilton's reported pounds (291.3K lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Van Diest Supply Co's total reported releases fell from 38.7 thousand lb in 2022 to 32.2 thousand lb in 2023, based on EPA TRI filings.
- Van Diest Supply Co's off-site transfers fell from 10.2 thousand lb in 2022 to 2.7 thousand lb in 2023, based on EPA TRI filings.
- Van Diest Supply Co's water releases fell from 101 lb in 2022 to 72 lb in 2023, based on EPA TRI filings.
- Van Diest Supply Co's chemicals reported fell from 23 in 2022 to 20 in 2023, based on EPA TRI filings.
Van Diest Supply Co Form-R facts
Compare this facility
See how Van Diest Supply Co stacks up against nearby facilities and the typical reporter.
1053.5× more than the comparison
25.0× 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 Van Diest Supply Co releases toxic chemicals into the environment. Total: 191.1K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 37% (51.0K lbs to 32.2K lbs).
Van Diest Supply Co: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Van Diest Supply Co year-over-year reported totals (decreased by 37% 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: Atrazine.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 51.0K lbs | 23 |
| 2020 | 33.9K lbs | 24 |
| 2021 | 35.3K lbs | 22 |
| 2022 | 38.7K lbs | 23 |
| 2023 | 32.2K lbs | 20 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 3 of 25 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Atrazine | 51.6K lbs | - |
| Ammonia | 33.9K lbs | - |
| 2,4-D 2-ethylhexyl ester | 17.3K lbs | Carcinogen |
| Pendimethalin | 14.2K lbs | - |
| Ametryn | 13.8K lbs | - |
| Dimethylamine | 11.4K lbs | - |
| Ethylene glycol | 10.3K lbs | - |
| Dicamba | 8.4K lbs | - |
| Methanol | 8.2K lbs | - |
| Sodium dicamba | 3.5K lbs | - |
| Metribuzin | 3.4K lbs | - |
| Nonylphenol Ethoxylates | 3.2K lbs | - |
| 1,2,4-Trimethylbenzene | 3.1K lbs | - |
| Naphthalene | 2.9K lbs | Carcinogen |
| Hexazinone | 2.3K lbs | - |
| Diuron | 2.0K lbs | - |
| n-Butyl alcohol | 1.1K lbs | - |
| Terbacil | 349 lbs | - |
| Toluene | 206 lbs | - |
| Linuron | 16 lbs | - |
| Norflurazon | 7 lbs | - |
| Nitrapyrin | 0 lbs | - |
| Xylene (mixed isomers) | 0 lbs | - |
| Fomesafen | 0 lbs | - |
| Cumene | 0 lbs | Carcinogen |
Van Diest Supply Co · AIR-pathway site
Nearest TRI Facilities to Van Diest Supply Co
Closest other reporters in Iowa - including New Cooperative Inc-Duncombe Mill, Koch Fertilizer Ft. Dodge LLC, Certainteed Gypsum, ordered by distance.
Showing 8 of 459 other reporting facilities in Iowa.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Iowa - e.g. Polypeptide Laboratories Inc., Metton America Inc, Green Plains Obion LLC.
Compare beyond Iowa
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Van Diest Supply Co on cumulative reported pounds (191.1K lbs) and distinct chemical count (25). Release-pound peers include Boeing Commercial Airplane Group - Renton, International Marble LLC, Dnp Imagingcomm America Corp. Chemical-count peers include Aes Puerto Rico LP, Verso Luke LLC, Virginia City Hybrid Energy Center. 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.
- Boeing Commercial Airplane Group - Renton Renton, WA · Transportation Equipment 191.1K lbs reported
- International Marble LLC Woodstock, GA · Plastics and Rubber 191.2K lbs reported
- Dnp Imagingcomm America Corp Concord, NC · Miscellaneous Manufacturing 191.0K lbs reported
- Phenomenex Inc Torrance, CA · Computers and Electronic Products 191.0K 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 Atrazine, Ammonia, 2,4-D 2-ethylhexyl ester, Pendimethalin; nearby reporters include New Cooperative Inc-Duncombe Mill. Van Diest Supply Co stamps MID volume · AIR pathway · CARC-LEAN 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 Van Diest Supply Co TRI extract (MID · AIR · CARC-LEAN · lead Atrazine) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Van Diest Supply Co totals are self-reported EPCRA §313 estimates for Webster City, IA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325320 · Chemicals. 65.6% of Hamilton TRI pounds in this extract. Nearest ABS peer: Boeing Commercial Airplane Group - Renton (Δ 14 lbs). Pounds ≠ exposure.
Van Diest Supply Co stamps MID volume · AIR pathway · CARC-LEAN · lead Atrazine. 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