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- Clean Water Act Lawsuit Adverse Ruling (new) — Federal court ruled against the company in environmental lawsuit alleging unpermitted pollutant discharges including arsenic.
Rise Gold loses Clean Water Act lawsuit over alleged arsenic discharges from mine shafts
Filed May 22, 2026 · Period ending May 20, 2026 · ~1 min read
Key Changes
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Federal court granted summary judgment against Rise Gold subsidiary in Clean Water Act case alleging unpermitted discharges of arsenic and other metals from historic Idaho-Maryland mine shafts into local creek.
Item 8.01 verify on EDGAR → -
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Lawsuit claims three discharge points contain metals including arsenic originating from water in century-old mine shafts; company disputes connection and notes it doesn't own surface drains or top 200 feet of shafts.
Item 8.01 verify on EDGAR → -
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Company argues no evidence connects alleged discharge culvert to mine shaft, notes water samples showed no arsenic at New Brunswick shaft, and points to pollutants like E. Coli that couldn't originate from mine.
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1 more material change behind this preview — plus the full narrative summary, section-by-section diffs against the prior filing, and verbatim quotes with EDGAR citations.
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Source-verified from EDGAR · Narrative written by AI · May 24, 2026 · How we verify