Arconic US LLC
Lancaster, PA · LANCASTER COUNTY · NAICS 331315
Data updated May 2026
Arconic US LLC sits in the upper third of EPA GHGRP reporters by latest CO₂e (#2,396 of 8,713 nationally, #108 of 404 in PA).
- National rank #2,396 of 8,713 GHGRP facilities
- #108 of 404 in PA
- #116 of 363 in Metals
- 18.5% of ARCONIC parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +5.3% since 2011
Arconic US LLC vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
115,844 2396th of 8713 higher than 6,317 of 8,713 facilities
GHGRP facilities, banded by latest reported CO₂e (MT)
Each bar is a band; taller bars hold more facilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
Facility footprint context
This site accounts for 18.5% of ARCONIC reported parent CO₂e (116K MT of 628K MT ; #3 of 4 GHGRP facilities under that parent ). Inside the EPA Metals sector it ranks #116 of 363 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 116K MT CO₂e reported for 2023, non-CO₂ gases are 0.1% , led by N₂O at 0.1% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.9%
- 116K MT
- CH₄
- 0%
- 55 MT
- N₂O
- 0.1%
- 65 MT
High-emitter reporting timeline
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 115,844 |
| 2022 | 113,827 |
| 2021 | 109,531 |
| 2020 | 115,825 |
| 2019 | 128,623 |
| 2018 | 131,841 |
| 2017 | 115,720 |
| 2016 | 111,259 |
| 2015 | 112,825 |
| 2014 | 112,009 |
| 2013 | 111,705 |
| 2012 | 109,928 |
| 2011 | 109,969 |
Facility insight: Arconic US LLC
Arconic US LLC (GHGRP ID 1003379) is a high-volume reporter at 116K MT CO₂e in 2023 from Lancaster, PA (#2,396 of 8,713 nationally) under Metals (NAICS 331315).
Over 13 years (2011–2023), emissions stayed within a narrow band around 116K MT CO₂e (peak 132K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2018 at 132K MT CO2e; latest 2023 sits 12.1% below that peak (116K MT). The largest year-to-year move was 2017→2018 (+13.9%, 16K MT).
Frequently Asked Questions
Where does Arconic US LLC rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Arconic US LLC ranks #2,396 of 8,713 reporting facilities by latest reported CO₂e, and #108 of 404 facilities in PA (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Arconic US LLC? ▼
Arconic US LLC's 116K MT CO₂e is higher than 6,317 of the 8,713 GHGRP facilities with reported emissions (73%), an exact count from the full corpus, not an estimate.
How much CO2 does Arconic US LLC emit? ▼
Arconic US LLC reported 116K MT CO2e in 2023.
What share of ARCONIC does Arconic US LLC represent? ▼
Arconic US LLC accounts for 18.5% of ARCONIC's reported GHGRP CO₂e (116K MT of 628K MT), ranking #3 of 4 facilities under that parent.
What is Arconic US LLC's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Arconic US LLC, with N₂O the larger non-CO₂ share at 0.1% (CO₂ 99.9%). Shares use the facility's GHGRP gas components for that year.
Where does Arconic US LLC rank inside Metals? ▼
Among EPA GHGRP facilities tagged Metals, Arconic US LLC ranks #116 of 363 by latest reported CO₂e.
Is Arconic US LLC reducing emissions? ▼
Over 13 reporting years (2011–2023), Arconic US LLC's emissions have increased by 5.3%. Emissions have remained relatively stable.
Nationwide facilities with similar CO₂e or sector
Peer sets outside PA for a top-third GHGRP emitter: CO₂e totals first, then Metals neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside PA (116K MT here).
Similar Metals CO₂e
Nearest same-sector facility totals outside PA.