- Owner
- City of Milwaukie
- Location
- Milwaukie, Oregon
- Project code
- SD-25-454
Milwaukie PFAS and Treatment-System Improvements
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.
Last verified Sep 25, 2026 2 official source families
Project brief
What is proposed
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.
Latest material change
OHA publishes project in revised DWSRF public-comment list
The project appears in OHA's June 9, 2026 revised public-comment PPL, preserving a second official project-specific publication record.
Commercial scope
Confirmed work and commercial interpretation
What is proposed
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.
Potential commercial work
Waterline IQ interpretation of accepted scope. These items are not confirmed contract packages or specifications.
Treatment plant
PFAS treatment
Process and controls
Electrical and controls
Selected lifecycle
Key official milestones
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Official event
Added during OHA's 3Q2025 DWSRF priority-list cycle
OHA lists the project for DWSRF funding consideration; the workbook does not establish a formal procurement date.
View evidence for Added during OHA's 3Q2025 DWSRF priority-list cycle -
Official event
OHA publishes project in revised DWSRF public-comment list
The project appears in OHA's June 9, 2026 revised public-comment PPL, preserving a second official project-specific publication record.
View evidence for OHA publishes project in revised DWSRF public-comment list
Evidence and sources
9 accepted claims across 2 official document versions
Selected official evidence · Inspect exact excerpts and locators
2026 Q3 Combined Base DWSRF and IIJA General Supplemental PPL — public-comment PDF
OHA DWSRF infrastructure project priority list — public-comment edition“d pump it once or twice a week up to the storage tank. City of Milwaukie Issue: PFAS detections above MCL, treatment required to reduce Rating results include: SD-25-454 levels below MCL by 2029. Aging/obsolete VOC treatment (potentially 30 pts (Health Risk...”
2026 Q3 Combined Base DWSRF and IIJA General Supplemental PPL
OHA DWSRF infrastructure project priority list“8 | City of Milwaukie SD-25-454 Clackamas Jeff Hampton / Matt Mattia 20,946 | | 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 h...”