Arclight Energy Partners Fund VII LP
8 facilities · 3 states · 153.3K lbs total releases
According to the EPA Toxics Release Inventory, Arclight Energy Partners Fund VII LP is the reported parent of 8 Form R facilities across 3 states, disclosing 153.3K lbs of toxic releases. 2 of 15 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Connecticut (139.4K lbs). Those TRI figures remain self-reported disclosure pounds for Arclight Energy Partners Fund VII LP, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Arclight Energy Partners Fund VII LP: EPA TRI 2023 reporting year
Same facilities, both years
-6.8%
4 facilities that filed in 2022 and 2023
Whole inventory
-16.2%
41.9 thousand lb → 35.2 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 3 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Arclight Energy Partners Fund VII LP's total reported releases fell from 28.0 thousand lb in 2022 to 26.1 thousand lb in 2023, based on EPA TRI filings.
- Arclight Energy Partners Fund VII LP's water releases fell from 312 lb in 2022 to 125 lb in 2023, based on EPA TRI filings.
- Arclight Energy Partners Fund VII LP's off-site transfers fell from 22 lb in 2022 to 12 lb in 2023, based on EPA TRI filings.
- Arclight Energy Partners Fund VII LP's air releases fell from 27.7 thousand lb in 2022 to 26.0 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Arclight Energy Partners Fund VII LP from filing to facility
Largest Form R sites under this parent: Middletown Power LLC; Kearny Generating Station; Bridgeport Harbor Station Unit 5; Montville Power LLC. Neighbor parents on the disclosure ladder: Clean Harbors Inc; Unimetal Surface Finishing LLC; Ametek Inc; Prysmian Cables & Systems (us) Inc. Largest disclosed chemicals by pounds: Ammonia; Polycyclic aromatic compounds; Naphthalene; Benzo[g,h,i]perylene. Heaviest-reporting states in this extract: Connecticut; New Jersey; New York. Industry labels on the parent rollup: Electric Utilities. 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: Middletown Power LLC; Kearny Generating Station; Bridgeport Harbor Station Unit 5; Montville Power LLC. Neighbor parents on the disclosure ladder: Clean Harbors Inc; Unimetal Surface Finishing LLC; Ametek Inc; Prysmian Cables & Systems (us) Inc. Largest disclosed chemicals by pounds: Ammonia; Polycyclic aromatic compounds; Naphthalene; Benzo[g,h,i]perylene. Heaviest-reporting states in this extract: Connecticut; New Jersey; New York. Industry labels on the parent rollup: Electric Utilities.
Arclight Energy Partners Fund VII LP ranks #1,415 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Arclight Energy Partners Fund VII LP files across 3 states, a regional parent portfolio rather than a single-state discloser. Releases are facility-concentrated: Middletown Power LLC accounts for most of Arclight Energy Partners Fund VII LP's disclosed pounds, so peer comparisons should weight that site, not an even portfolio average.
Parent aggregation for Arclight Energy Partners Fund VII LP follows facility-reported names. Compare the named neighbors (Clean Harbors Inc; Unimetal Surface Finishing LLC; Ametek Inc) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Arclight Energy Partners Fund VII LP sits among TRI parents
Arclight Energy Partners Fund VII LP sits on a disclosure ladder beside Clean Harbors Inc and Unimetal Surface Finishing LLC and Ametek Inc and Prysmian Cables & Systems (us) Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Clean Harbors Inc · rank #1,413 · 1.5M lbs
- Unimetal Surface Finishing LLC · rank #1,414 · 834.8K lbs
Lower disclosed volume
- Ametek Inc · rank #1,416 · 150.5K lbs
- Prysmian Cables & Systems (us) Inc · rank #1,417 · 143.6K lbs
Largest chemicals disclosed by Arclight Energy Partners Fund VII LP
Ammonia; Polycyclic aromatic compounds; Naphthalene; Benzo[g,h,i]perylene lead the Form R pound rollup for this parent, including filings such as Middletown Power LLC. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Ammonia | 172.2K lbs |
| Polycyclic aromatic compounds | 146 lbs |
| Naphthalene | 37 lbs |
| Benzo[g,h,i]perylene | 1 lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Connecticut | 5 | 139.4K lbs |
| New Jersey | 2 | 13.9K lbs |
| New York | 1 | 39 lbs |
Facilities (8)
| Facility | Releases |
|---|---|
| Middletown Power LLC Middletown, CT | 130.3K lbs |
| Kearny Generating Station Kearny, NJ | 13.9K lbs |
| Bridgeport Harbor Station Unit 5 Bridgeport, CT | 9.0K lbs |
| Montville Power LLC Uncasville, CT | 55 lbs |
| Oswego Harbor Power Oswego, NY | 39 lbs |
| New Haven Harbor Station New Haven, CT | 19 lbs |
| Burlington Generating Station Burlington, NJ | 2 lbs |
| Devon Power Holdings LLC Milford, CT | 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 Arclight Energy Partners Fund VII LP on total disclosed release pounds (153.3K lbs) and reporting facility count (8). Release-volume peers include Balchem Corp, Lear Corp, Reladyne LLC. Facility-count peers include Agropur Inc, Albemarle Corp, Allegheny Technologies Inc. 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 Connecticut, New Jersey, New York; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Arclight Energy Partners Fund VII LP's TRI parent record
From Arclight Energy Partners Fund VII LP, open Middletown Power LLC or compare against Clean Harbors Inc rather than reading rank alone.
- Open the largest Form R site for Arclight Energy Partners Fund VII LP (Middletown Power LLC in CT). Largest facility
- Compare against Unimetal Surface Finishing LLC, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Arclight Energy Partners Fund VII LP sits among all slug-merged TRI parents. All parent companies
Rank and peers (Clean Harbors Inc, Unimetal Surface Finishing LLC) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Arclight Energy Partners Fund VII LP'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.