EPA TRI Facility · Primary Metals
Ati Huntsville Operations
Huntsville, AL · Parent: Ati Operating Holdings LLC
- Total releases
- 38.1K lbs
- Chemicals reported
- 6
- Carcinogens
- 1
- Primary pathway
- Off-site Transfers
Ati Huntsville Operations is an EPA Toxics Release Inventory reporter in Huntsville, AL, in the primary metals sector. It reported 6.4K lbs of releases across 6 chemicals in 2023, and 38.1K lbs in total across its 2019-2023 reporting years. That ranks 6,767 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Kennametal Inc DBA Kennametal Firth Sterling; Blue Engines Facility Hsv; Tyonek Manufacturing Group; Benchmark Electronics Huntsville Inc. Similar-scale Primary Metals peers outside Alabama: Hexatronic Rochester Cable Inc.; St. Marys Foundry Ltd.; Yamaha Marine Precision Propellers Inc; Plymouth Engineered Shapes. Largest disclosed chemicals by pounds: Nickel; Chromium; Copper; Hydrogen fluoride.
Ati Huntsville Operations has reported 38.1K lbs of toxic releases across 6 chemicals to the EPA Toxic Release Inventory, based on annual facility disclosures from 2019 through 2023. Of the chemicals reported, 1 is classified as carcinogen, representing 17% of the facility's chemical profile. The facility operates in the Primary Metals sector. The primary release pathway is off-site transfers, accounting for 100% of total releases. All release data shown below is self-reported to the EPA under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313.
Where this facility sits in the TRI record
Among the 1,603 Primary Metals facilities in this database, Ati Huntsville Operations reports the 542nd-largest volume (38.1K lbs). Its reported volume is concentrated rather than spread: Nickel alone is 78.1% of the total. Carcinogen-classified chemicals make up 78.1% of the reported pounds, not just of the chemical count.
Placement is computed from reported TRI pounds in this database. Thresholds are fixed across every facility page: concentrated ≥60% of volume in one chemical, county-dominant ≥25% of the county total, carcinogen-heavy ≥50% of pounds. Share-based statements are shown only for sites reporting at least 1,000 lbs, because a share of a very small total is not a meaningful signal. Reported pounds are self-reported estimates and do not measure toxicity or health risk.
Ati Huntsville Operations files annual Form R disclosures to the EPA Toxics Release Inventory under EPCRA Section 313, classified under NAICS 331491 (Primary Metals). Across 5 years of records spanning 2019–2023, the site has disclosed 38.1K lbs in cumulative toxic releases across 6 distinct chemicals, 1 of which (17%) carry a carcinogenic classification. Largest chemicals by pounds: Nickel; Chromium; Copper; Hydrogen fluoride.
The dominant release pathway is off-site transfers at 38.0K lbs (99.9% of total volume), followed by air releases at 0.1%. Between 2019 and 2023, reported totals decreased by 36% - from 10.1K lbs to 6.4K lbs. The facility is operated under parent company Ati Operating Holdings LLC. Nearest other TRI reporters: Kennametal Inc DBA Kennametal Firth Sterling; Blue Engines Facility Hsv; Tyonek Manufacturing Group; Benchmark Electronics Huntsville Inc. Similar-scale peers outside Alabama: Hexatronic Rochester Cable Inc.; St. Marys Foundry Ltd.; Yamaha Marine Precision Propellers Inc; Plymouth Engineered Shapes.
TRI Form R values are self-reported estimates, not measured stack emissions, and treat every pound of reported chemical equally regardless of toxicity. Inclusion in the TRI database does not establish a health risk to nearby residents; it documents the annual reporting record that Ati Huntsville Operations has filed with the EPA under federal community right-to-know requirements - open Kennametal Inc DBA Kennametal Firth Sterling for a different chemical mix before treating volume as risk.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Ati Huntsville Operations's total reported releases fell from 10.0 thousand lb in 2022 to 6.4 thousand lb in 2023, based on EPA TRI filings.
- Ati Huntsville Operations's off-site transfers fell from 10.0 thousand lb in 2022 to 6.4 thousand lb in 2023, based on EPA TRI filings.
Quick Facts
Compare this facility
See how Ati Huntsville Operations stacks up against nearby facilities and the typical reporter.
99% less than the comparison
25% 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 Ati Huntsville Operations releases toxic chemicals into the environment. Total: 38.1K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 36% (10.1K lbs to 6.4K lbs).
Reported total releases by year
Ati Huntsville Operations - annual TRI totals
- 2019 0
2019
0 million lbs
- 2020 0
2020
0 million lbs
- 2021 0
2021
0 million lbs
- 2022 0
2022
0 million lbs
- 2023 0
2023
0 million lbs
What this shows Year-over-year reported totals. TRI figures are self-reported estimates and can swing with production levels, waste-rock handling and reporting changes, not only with emissions controls.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 10.1K lbs | 6 |
| 2020 | 4.8K lbs | 6 |
| 2021 | 6.7K lbs | 6 |
| 2022 | 10.0K lbs | 6 |
| 2023 | 6.4K lbs | 6 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 6 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Nickel | 29.8K lbs | Carcinogen |
| Chromium | 8.2K lbs | - |
| Copper | 109 lbs | - |
| Hydrogen fluoride | 28 lbs | - |
| Nitric acid | 7 lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0 lbs | - |
Location
Nearest TRI Facilities to Ati Huntsville Operations
Closest other reporters in Alabama - including Kennametal Inc DBA Kennametal Firth Sterling, Blue Engines Facility Hsv, Tyonek Manufacturing Group, ordered by distance.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Alabama - e.g. Hexatronic Rochester Cable Inc., St. Marys Foundry Ltd., Yamaha Marine Precision Propellers Inc.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
Data comes from the EPA Toxic Release Inventory (TRI) program. Facilities that manufacture, process, or otherwise use listed toxic chemicals above threshold amounts are required to report annually to the EPA.
On this page the largest disclosed chemicals include Nickel, Chromium, Copper, Hydrogen fluoride; nearby reporters include Kennametal Inc DBA Kennametal Firth Sterling. "Total releases" includes air, water, land, and off-site transfers for disposal, aggregated across available reporting years. Quantities are self-reported estimates, not measured stack emissions.
PlainEnviro presents this data without advocacy framing. The presence of a facility in the TRI database does not by itself indicate a health risk. For site-specific health questions, consult your local environmental or health agency.
Frequently Asked Questions
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Explore More Data for Alabama
What to do with this facility's data
From Ati Huntsville Operations, open Kennametal Inc DBA Kennametal Firth Sterling or Hexatronic Rochester Cable Inc. next rather than reading rank alone.
- See whether releases reported by Ati Huntsville Operations are rising or falling over time (watch Nickel in the chemical mix). View trends
- Compare Ati Huntsville Operations with nearby reporter Kennametal Inc DBA Kennametal Firth Sterling before treating rank as risk. Open Kennametal Inc DBA Kennametal Firth Sterling
- Cross-check similar-scale peer Hexatronic Rochester Cable Inc. outside Alabama. Open Hexatronic Rochester Cable Inc.
Rank and named neighbors (Kennametal Inc DBA Kennametal Firth Sterling, Blue Engines Facility Hsv) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Read our methodology - how this data is sourced, computed, and verified.
Related
Sources & how this page was built
Every figure on this page traces to public, federal-government data on Ati Huntsville Operations. The records below are the primary sources; our methodology explains how they are joined, computed, and verified.
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program, chemical & reporting reference - what each chemical is and how releases are counted. epa.gov
- EPA Facility Registry Service (FRS) - authoritative facility location and identity. epa.gov
- EPA Enforcement & Compliance History Online (ECHO) - regulatory and compliance context. echo.epa.gov
- EPA Envirofacts - the EPA data warehouse that exposes these datasets. enviro.epa.gov
Retrieved and formatted by PlainEnviro. TRI release totals are self-reported estimates, not measured stack emissions.
According to the U.S. Environmental Protection Agency, the Toxics Release Inventory has required annual industrial disclosure since its creation under the Emergency Planning and Community Right-to-Know Act in October 1986, and this facility's record is drawn from PlainEnviro's database of more than 25,000 EPA-tracked facilities through the 2023 reporting year; see our methodology for full source citations and refresh cadence.