Total reported releases
Total reported releases at Sierra Pacific Power CO North Valmy Station have more than three-quarters since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Sierra Pacific Power CO North Valmy Station
Total reported releases 135k lb rose meaningfully year over year (+34%). Total releases concentrations have more than halved since 2010.
23755 TREATY HILL RD, Valmy, Nevada · 221122 · Electric Utilities · operated by Berkshire Hathaway INC
Anomaly engine
Notable Signals
Barium compounds (except for barium sulfate (CAS No. 7727-43-7))
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) at Sierra Pacific Power CO North Valmy Station have more than three-quarters since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Barium compounds (except for barium sulfate (CAS No. 7727-43-7))
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) concentrations have more than halved since 2010.
Manganese compounds
Manganese compounds concentrations have fallen 23% since 2010.
Chromium
Chromium volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Lead compounds
Lead compounds concentrations have more than halved since 2010.
Mercury compounds
Mercury compounds concentrations have fallen 33% since 2018.
Dioxin and dioxin-like compounds
Dioxin and dioxin-like compounds concentrations have fallen 40% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Humboldt County County, NV (no Census block groups within 3 miles — falling back to containing county): a population of 17,266. Why we surface this →
14.3%
Low-income
35.9%
People of color
7.7%
Under age 5
15.4%
Over age 64
Source: Census ACS 2018-2022 (5-year), county-level fallback. 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.