Supporting official record

2026 Q3 Combined Base DWSRF and IIJA General Supplemental PPL

Oregon Health Authority · 2026 COMBINED (H&C&C) PPL!D20

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“Issue: PFAS detections above MCL, treatment required to reduce levels below MCL by 2029. Aging/obsolete VOC treatment (potentially at end of life). The gas chlorine treatment has minimal safety controls and has been identified by emergency responders with concerns about response capabilities....”

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Issue: PFAS detections above MCL, treatment required to reduce levels below MCL by 2029. Aging/obsolete VOC treatment (potentially at end of life). The gas chlorine treatment has minimal safety controls and has been identified by emergency responders with concerns about response capabilities. Project: Treatment Project: a.) Install PFAS treatment for at least 5 wells (method determined by PFAS feasibility study) Replace gas chlorination with hypochlorite based disinfection. b.) Upgrade VOC air stripping tower for seismic resilience, reliability, and efficiency. c.) Improve clearwells to reduce risk of exterior contaminants. Relocate backup generators from on top of clearwells. d.) Reconfigure treatment structures, electrical equipment and mechanical equipment to support above changes. e.) Evaluate Well 8 to determine if it can be rehabilitated and treated or if a new well needs to be drilled. Needs PFAS testing, and corrosivity and iron analysis (above SMCL for iron). Secondary Projects: Replacing concrete reservoir, redevelop wells, transfer pump capacity upgrades, relocate W2 transfer pump station and building to accommodate new treatment facility, and intertie with Oak Lodge.

Retrieved: July 14, 2026 18:34
Source location: 2026 COMBINED (H&C&C) PPL!D20
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