TRI facility · TRI 2024 reporting year

California Steel Industries INC.

Total reported releases 35k lb rose meaningfully year over year (+25%). Total releases concentrations have more than doubled since 2010.

14000 SAN BERNARDINO AVE, Fontana, California · 331110 · Primary Metals · operated by Nucor CORP

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 35k.35k'10'12'14'16'18'20'22'2435k
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

RESPIRATORYCAS N090

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

22k lb · +20% YoY

Chromium compounds (except for chromite ore mined in the Transvaal Region) concentrations have more than doubled since 2010.

RESPIRATORYCAS 7439-96-5

Manganese

9k lb · +35% YoY

Manganese concentrations have fallen 13% since 2010.

RESPIRATORYCAS 7647-01-0

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

3k lb · +37% YoY

Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations are up 50% since 2010.

PBTCAS 7439-92-1

Lead

43 lb · +1% YoY

Lead concentrations are roughly unchanged from 2023.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (45 Census block groups, population-weighted demographics): a population of 82,275. Why we surface this →

POPULATION SHARE
29.7%

Low-income

POPULATION SHARE
88.5%

People of color

POPULATION SHARE
5.5%

Under age 5

POPULATION SHARE
9.3%

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.