TRI facility · TRI 2024 reporting year

National Grid Northport Power Station

Total reported releases 140k lb rose sharply year over year (+59%). Total releases concentrations have more than doubled since 2010.

WATERSIDE AVE & EATONS NECK RD, Northport, New York · 221112 · Electric Utilities · operated by National Grid USA

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 140k.403k'10'12'14'16'18'20'22'24140k
Anomaly engine

Notable Signals

YEAR-OVER-YEAR SURGE · RELEASE SHIFT

Ammonia

Ammonia releases at National Grid Northport Power Station rose from 88k lb to 132k lb between 2023 and 2024.

LONG-ARC IMPROVEMENT · LONG-ARC SHIFT

Ammonia

Ammonia at National Grid Northport Power Station have more than halved since 2014 (through 2024).

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS 7664-41-7

Ammonia

132k lb · +51% YoY

Ammonia concentrations have more than halved since 2014.

GENERALCAS 7664-93-9

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

7k lb · YoY

Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2010.

PBTCAS N590

Polycyclic aromatic compounds

4 lb · +70% YoY

Polycyclic aromatic compounds concentrations are up 75% since 2010.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (22 Census block groups, population-weighted demographics): a population of 30,485. Why we surface this →

POPULATION SHARE
9.5%

Low-income

POPULATION SHARE
13.1%

People of color

POPULATION SHARE
5.1%

Under age 5

POPULATION SHARE
19.6%

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.