Ammonia
Ammonia at J R Simplot CO Don Sid Ing have risen 65% since 2010 (through 2024).
Total reported releases 3.0M lb held roughly steady year over year (+1%). Total releases concentrations have fallen 41% since 2010.
1150 W HWY 30, Pocatello, Idaho · 325312 · Chemicals · operated by J R Simplot Co
Ammonia at J R Simplot CO Don Sid Ing have risen 65% since 2010 (through 2024).
Hydrogen fluoride at J R Simplot CO Don Sid Ing have more than halved since 2010 (through 2024).
Vanadium compounds concentrations have fallen 20% since 2010.
Hydrogen fluoride concentrations have more than halved since 2010.
Ammonia concentrations are up 65% since 2010.
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations have fallen 20% since 2010.
Zinc compounds concentrations have fallen 37% since 2010.
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) concentrations are roughly unchanged from 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than doubled since 2010.
Cadmium compounds concentrations have fallen 24% since 2010.
Within 3 miles of this facility (30 Census block groups, population-weighted demographics): a population of 37,628. Why we surface this →
Low-income
People of color
Under age 5
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.