TRI facility · TRI 2024 reporting year

US Nitrogen LLC

Total reported releases 118k lb rose meaningfully year over year (+16%). Total releases concentrations are up 83% since 2016.

471 POTTERTOWN RD, Midway, Tennessee · 325311 · Chemicals · operated by Austin Powder Holdings Co

TOTAL RELEASES · 20162024
Bar chart of annual values from 2016 to 2024, in lb. Most recent year (2024): 118k.132k'16'18'20'22'24118k
Anomaly engine

Notable Signals

YEAR-OVER-YEAR SURGE · RELEASE SHIFT

Nitrate compounds (water dissociable; reportable only when in aqueous solution)

Nitrate compounds (water dissociable; reportable only when in aqueous solution) releases at US Nitrogen LLC rose from 19k lb to 32k lb between 2023 and 2024.

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS 7664-41-7

Ammonia

86k lb · +4% YoY

Ammonia concentrations are up 58% since 2016.

GENERALCAS N511

Nitrate compounds (water dissociable; reportable only when in aqueous solution)

32k lb · +65% YoY

Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than doubled since 2016.

GENERALCAS 7697-37-2

Nitric acid

644 lb · +6% YoY

Nitric acid concentrations have more than halved since 2017.

RESPIRATORYCAS 7782-50-5

Chlorine

7 lb · +51% YoY

Chlorine concentrations have more than halved since 2016.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 3,383. Why we surface this →

POPULATION SHARE
40.5%

Low-income

POPULATION SHARE
5.6%

People of color

POPULATION SHARE
5.4%

Under age 5

POPULATION SHARE
16.6%

Over age 64

Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.

Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.

What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.