Tenaris
11 facilities · 6 states · 1.1M lbs total releases
According to the EPA Toxics Release Inventory, Tenaris is the reported parent of 11 Form R facilities across 6 states, disclosing 1.1M lbs of toxic releases. 6 of 42 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Pennsylvania (1.0M lbs). Those TRI figures remain self-reported disclosure pounds for Tenaris, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Tenaris: EPA TRI 2023 reporting year
Same facilities, both years
+108.1%
5 facilities that filed in 2022 and 2023
Whole inventory
+108.1%
231.0 thousand lb → 480.8 thousand lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Tenaris's total reported releases rose from 231.0 thousand lb in 2022 to 480.7 thousand lb in 2023, based on EPA TRI filings.
- Tenaris's water releases rose from 15 lb in 2022 to 102 lb in 2023, based on EPA TRI filings.
- Tenaris's off-site transfers rose from 227.3 thousand lb in 2022 to 477.3 thousand lb in 2023, based on EPA TRI filings.
- Tenaris's air releases fell from 3.7 thousand lb in 2022 to 3.3 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Tenaris from filing to facility
Largest Form R sites under this parent: Tenaris Koppel; Tenaris Bay City Inc.; Koppel Steel Corp Baytown Plant; Maverick Tube LLC DBA Tenarisconroe. Neighbor parents on the disclosure ladder: US Steel Corp; Keystone-Conemaugh Projects LLC. Largest disclosed chemicals by pounds: Zinc compounds; Manganese And Manganese Compounds; Manganese; Lead And Lead Compounds; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region). Heaviest-reporting states in this extract: Pennsylvania; Texas; Kentucky. Industry labels on the parent rollup: Primary Metals; Fabricated Metals. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Largest Form R sites under this parent: Tenaris Koppel; Tenaris Bay City Inc.; Koppel Steel Corp Baytown Plant; Maverick Tube LLC DBA Tenarisconroe. Neighbor parents on the disclosure ladder: US Steel Corp; Keystone-Conemaugh Projects LLC. Largest disclosed chemicals by pounds: Zinc compounds; Manganese And Manganese Compounds; Manganese; Lead And Lead Compounds; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region). Heaviest-reporting states in this extract: Pennsylvania; Texas; Kentucky. Industry labels on the parent rollup: Primary Metals; Fabricated Metals.
Tenaris ranks #600 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Tenaris spans 6 states in this extract, placing it among the broader national TRI parent footprints. Releases are facility-concentrated: Tenaris Koppel accounts for most of Tenaris's disclosed pounds, so peer comparisons should weight that site, not an even portfolio average.
Parent aggregation for Tenaris follows facility-reported names. Compare the named neighbors (US Steel Corp; Keystone-Conemaugh Projects LLC) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Tenaris sits among TRI parents
Tenaris sits on a disclosure ladder beside US Steel Corp and Keystone-Conemaugh Projects LLC. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- US Steel Corp · rank #598 · 40.6M lbs
- Keystone-Conemaugh Projects LLC · rank #599 · 15.0M lbs
Largest chemicals disclosed by Tenaris
Zinc compounds; Manganese And Manganese Compounds; Manganese; Lead And Lead Compounds; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) lead the Form R pound rollup for this parent, including filings such as Tenaris Koppel. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Zinc compounds | 817.1K lbs |
| Manganese And Manganese Compounds | 228.7K lbs |
| Manganese | 49.5K lbs |
| Lead And Lead Compounds | 35.4K lbs |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 23.9K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Pennsylvania | 2 | 1.0M lbs |
| Texas | 5 | 81.1K lbs |
| Kentucky | 1 | 293 lbs |
| Iowa | 1 | 97 lbs |
| Arkansas | 1 | 4 lbs |
| Oklahoma | 1 | 0 lbs |
Facilities (11)
| Facility | Releases |
|---|---|
| Tenaris Koppel Koppel, PA | 1.0M lbs |
| Tenaris Bay City Inc. Bay City, TX | 52.0K lbs |
| Koppel Steel Corp Baytown Plant Baytown, TX | 27.2K lbs |
| Maverick Tube LLC DBA Tenarisconroe Conroe, TX | 1.9K lbs |
| Ipsco Tubulars (kentucky) Inc Wilder, KY | 293 lbs |
| Ipsco Camanche Works Camanche, IA | 97 lbs |
| Tenaris Ambridge Ambridge, PA | 71 lbs |
| Tenaris Mesa Houston, TX | 20 lbs |
| Ipsco Tubulars Inc Blytheville, AR | 4 lbs |
| Ultra Premium Oilfield Services Odessa, TX | 0 lbs |
| Ipsco Tubulars (oklahoma) Inc Catoosa, OK | 0 lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Tenaris on total disclosed release pounds (1.1M lbs) and reporting facility count (11). Release-volume peers include Gcc of America, Northwest Dairy Assoc, Henkel of America Inc. Facility-count peers include Ag Processing Inc, American Electric Power, Atlas Roofing Corp. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Pennsylvania, Texas, Kentucky; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Tenaris's TRI parent record
From Tenaris, open Tenaris Koppel or compare against US Steel Corp rather than reading rank alone.
- Open the largest Form R site for Tenaris (Tenaris Koppel in PA). Largest facility
- Compare against Keystone-Conemaugh Projects LLC, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Tenaris sits among all slug-merged TRI parents. All parent companies
Rank and peers (US Steel Corp, Keystone-Conemaugh Projects LLC) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Tenaris's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.