TRI facility · TRI 2024 reporting year

Arrowhead Products Corp

Total reported releases 15k lb rose by an order of magnitude year over year (+1426%). Total releases concentrations have more than doubled since 2010.

4411 KATELLA AVE, Los Alamitos, California · 336413 · Transportation Equipment · operated by Summa Holdings INC

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 15k.15k'10'12'14'16'18'20'22'2415k
Anomaly engine

Notable Signals

No notable signals at this facility for the current reporting year. See chemicals and equity context below for the full picture.

Chemicals reported · most recent year

What This Facility Releases

PBTCAS N420

Lead compounds

5k lb · +567% YoY

Lead compounds concentrations have more than doubled since 2022.

RESPIRATORYCAS N090

Chromium compounds (except for chromite ore mined in the Transvaal Region)

5k lb · YoY

Chromium compounds (except for chromite ore mined in the Transvaal Region) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.

CARCINOGENCAS N495

Nickel compounds

4k lb · YoY

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

CARCINOGENCAS N096

Cobalt compounds

1k lb · +6377% YoY

Cobalt compounds concentrations have more than doubled since 2017.

GENERALCAS 7697-37-2

Nitric acid

10 lb · +108% YoY

Nitric acid concentrations have more than doubled since 2010.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (124 Census block groups, population-weighted demographics): a population of 185,736. Why we surface this →

POPULATION SHARE
18.8%

Low-income

POPULATION SHARE
60.7%

People of color

POPULATION SHARE
5.3%

Under age 5

POPULATION SHARE
18.2%

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.