EPA TRI Facility · Chemicals
US Nitrogen LLC
Midway, TN · Parent: Austin Powder Holdings Co
- Total releases
- 476.8K lbs
- Chemicals reported
- 4
- Latest report
- 2023
- Primary pathway
- Air Releases
AIR Form-R mix
US Nitrogen LLC: how the 476.8K lbs splits
476.8K lbs across all reported pathways
- Air Releases 436.5K lbs 91.6%
- Water Discharges 36.8K lbs 7.7%
- Off-site Transfers 3.5K lbs 0.7%
- Land Disposal 5 lbs <0.1%
US Nitrogen LLC's 476.8K lbs Form-R total is AIR - air releases is 91.6% of the bar. Next segment: water discharges at 7.7%. Leading chemical by pounds: Ammonia.
MID volume AIR pathway CLEAN
US Nitrogen LLC is an EPA Toxics Release Inventory reporter in Midway, TN, in the chemicals sector. It reported 102.2K lbs of releases across 4 chemicals in 2023, and 476.8K lbs in total across its 2019-2023 reporting years. That ranks 2,011 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Tennessee's 595 reporting TRI sites, pounds #1 is not chemical-count #1. US Nitrogen LLC is pounds #68 and chemical-count #200 at 476.8K lbs. Nyrstar Clarksville Inc leads reported pounds (72.9M lbs) at 13 chemicals (chemical-count #31). Tradebe Treatment & Recycling of Tn leads chemical count at 75 chemicals (6.3M lbs, pounds #13). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Sumiriko Tennessee Inc.; Oldcastle Building Envelope - Tennessee Facility; Scepter Greeneville Inc; Huf-North America. Similar-scale Chemicals peers outside Tennessee: Tpc Group LLC; Basf Corp; Vwr Chemicals LLC; Meglobal Oyster Creek. Other Austin Powder Holdings Co sites in this extract: Austin Powder Co; Austin Powder Co; Austin Powder Co. Largest disclosed chemicals by pounds: Ammonia; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Nitric acid; Chlorine.
US Nitrogen LLC stamps MID volume with a dominant AIR pathway (91.6% air releases) across 4 chemicals. Cumulative Form-R extract: 476.8K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Tpc Group LLC and Basf Corp.
US Nitrogen LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
477K lbs Top 8% higher than 92% 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
US Nitrogen LLC: Ammonia-led volume
Among the 3,917 Chemicals facilities in this database, US Nitrogen LLC reports the 405th-largest volume, placing it in the top 10.3% of its sector. Its reported volume is concentrated rather than spread: Ammonia alone is 88.7% of the total. Scale peers outside Tennessee include Tpc Group LLC and Basf Corp.
Concentrated means ≥60% of US Nitrogen LLC's pounds in one chemical - here Ammonia at 88.7%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- US Nitrogen LLC's total reported releases rose from 97.5 thousand lb in 2022 to 102.2 thousand lb in 2023, based on EPA TRI filings.
- US Nitrogen LLC's water releases rose from 9.3 thousand lb in 2022 to 17.7 thousand lb in 2023, based on EPA TRI filings.
- US Nitrogen LLC's off-site transfers fell from 54 lb in 2022 to 33 lb in 2023, based on EPA TRI filings.
- US Nitrogen LLC's air releases fell from 88.1 thousand lb in 2022 to 84.5 thousand lb in 2023, based on EPA TRI filings.
US Nitrogen LLC Form-R facts
Compare this facility
See how US Nitrogen LLC stacks up against nearby facilities and the typical reporter.
4.5× more than the comparison
33% 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 US Nitrogen LLC releases toxic chemicals into the environment. Total: 476.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 12% (91.5K lbs to 102.2K lbs).
US Nitrogen LLC: 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 US Nitrogen LLC year-over-year reported totals (increased by 12% 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: Ammonia.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 91.5K lbs | 4 |
| 2020 | 91.1K lbs | 4 |
| 2021 | 94.5K lbs | 4 |
| 2022 | 97.5K lbs | 4 |
| 2023 | 102.2K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ammonia | 422.9K lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 50.7K lbs | - |
| Nitric acid | 3.2K lbs | - |
| Chlorine | 14 lbs | - |
US Nitrogen LLC · AIR-pathway site
Nearest TRI Facilities to US Nitrogen LLC
Closest other reporters in Tennessee - including Sumiriko Tennessee Inc., Oldcastle Building Envelope - Tennessee Facility, Scepter Greeneville Inc, ordered by distance.
Showing 8 of 594 other reporting facilities in Tennessee.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Tennessee - e.g. Tpc Group LLC, Basf Corp, Vwr Chemicals LLC.
Compare beyond Tennessee
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest US Nitrogen LLC on cumulative reported pounds (476.8K lbs) and distinct chemical count (4). Release-pound peers include Corning Inc, Tpc Group LLC, Punxsutawney Finishing Works. Chemical-count peers include Hamilton Sundstrand de Puerto Rico Inc., Abb Installation Products Caribe LLC, Solenis LLC. 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.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Hamilton Sundstrand de Puerto Rico Inc. Santa Isabel, PR · Transportation Equipment 4 chemicals
- Abb Installation Products Caribe LLC Vega Baja, PR · Electrical Equipment 4 chemicals
- Solenis LLC Chicopee, MA · Chemicals 4 chemicals
- Adhesive Applications Inc. - O'Neill St Easthampton Easthampton, MA · Miscellaneous Manufacturing 4 chemicals
Other Austin Powder Holdings Co Facilities
Same-parent TRI sites ranked by reported releases - including Austin Powder Co, Austin Powder Co, Austin Powder 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 Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid, Chlorine; nearby reporters include Sumiriko Tennessee Inc.. US Nitrogen LLC stamps MID 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 US Nitrogen LLC TRI extract (MID · AIR · CLEAN · lead Ammonia) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
US Nitrogen LLC totals are self-reported EPCRA §313 estimates for Midway, TN, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325311 · Chemicals. 17.8% of Greene TRI pounds in this extract. Nearest ABS peer: Corning Inc (Δ 122 lbs). Pounds ≠ exposure.
US Nitrogen LLC stamps MID volume · AIR pathway · CLEAN · lead Ammonia. 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