N511
N511 releases at U.S. Navy Naval Station Mayport fell from 28k lb to 0 lb (100% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
U.S. Navy Naval Station Mayport
Total reported releases 6k lb more than halved year over year (-84%). Total releases concentrations have more than halved since 2010.
OLD MAYPORT RD, Jacksonville, Florida · 928110 · Other · operated by US Department Of Defense
Anomaly engine
Notable Signals
Total reported releases
Total reported releases at U.S. Navy Naval Station Mayport have more than three-quarters since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Lead
Lead concentrations have fallen 20% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than halved since 2016.
n-Hexane
n-Hexane concentrations have more than doubled since 2022.
Naphthalene
Naphthalene concentrations have more than doubled since 2011.
Ethylbenzene
Ethylbenzene concentrations have more than doubled since 2014.
Certain glycol ethers
Certain glycol ethers volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (16 Census block groups, population-weighted demographics): a population of 29,903. Why we surface this →
25.2%
Low-income
27.4%
People of color
5.1%
Under age 5
16.9%
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.