TRI facility · TRI 2024 reporting year

U.S. Army Letterkenny Army Depot

Total reported releases 98k lb fell modestly year over year (-9%). Total releases concentrations have fallen 26% since 2010.

1 OVERCASH AVE BUILDING 14, Chambersburg, Pennsylvania · 928110 · Other · operated by US Department Of Defense

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 98k.133k'10'12'14'16'18'20'22'2498k
Anomaly engine

Notable Signals

LONG-ARC IMPROVEMENT · LONG-ARC SHIFT

Ethylene glycol

Ethylene glycol at U.S. Army Letterkenny Army Depot have more than three-quarters since 2010 (through 2024).

Chemicals reported · most recent year

What This Facility Releases

RESPIRATORYCAS 7647-01-0

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

91k lb · -2% YoY

Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations are up 98% since 2013.

RESPIRATORYCAS 107-21-1

Ethylene glycol

7k lb · -52% YoY

Ethylene glycol concentrations have more than halved since 2010.

RESPIRATORYCAS 12185-10-3

Phosphorus (yellow or white)

0 lb · YoY

Phosphorus (yellow or white) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.

GENERALCAS 55-63-0

Nitroglycerin

0 lb · YoY

Nitroglycerin volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.

RESPIRATORYCAS 84-74-2

Dibutyl phthalate

0 lb · YoY

Dibutyl phthalate 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 (5 Census block groups, population-weighted demographics): a population of 8,916. Why we surface this →

POPULATION SHARE
23.5%

Low-income

POPULATION SHARE
15.2%

People of color

POPULATION SHARE
5.6%

Under age 5

POPULATION SHARE
22.4%

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.