Aurora Sewage Treatment Plant
Mill Race Rd NE, Aurora, OR 97002 · Marion County · Publicly Owned Treatment Works
- Average flow
- 0.09 MGD
- Design flow
- —
- NPDES permit
- OR0043991
- Effective
- Permit expires
- May 2027
- Population served
- 1,065
- CWNS 2022
Aurora Sewage Treatment Plant is a publicly owned wastewater treatment works in Aurora, Marion County, Oregon treating an average of 0.09 million gallons per day, serving about 1,065 residents. It discharges under NPDES permit OR0043991 (effective), which expires in May 2027, with 11 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Aurora Sewage Treatment Plant.
Available with a free Klarifi account
See the full treatment train at Aurora Sewage Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 11
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Aurora
Aurora's capital improvement plan lists 4 water, sewer and wastewater line items worth $7M starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in Aurora →
| Project | Budget | Years |
|---|---|---|
| New Lagoon | $3,640,000 | 2025–2026 |
| Maintain/Improve/Expand | $1,243,935 | 2025–2026 |
| Main St Water Line-Grant | $919,733 | 2025–2026 |
| Maintain/Improve/Expand | $737,000 | 2025–2026 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Aurora Sewage Treatment Plant.
No verified contacts on file yet
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Nearby wastewater treatment plants in Oregon
Hubbard · 4 mi away
0.21 MGD
Canby · 6 mi away
0.98 MGD
Gervais · 10 mi away
0.41 MGD
Mount Angel · 11 mi away
—
Dundee · 12 mi away
0.33 MGD
Tigard · 12 mi away
24.25 MGD
Lake Oswego · 14 mi away
5.22 MGD
Milwaukie · 15 mi away
3.05 MGD
Aurora Sewage Treatment Plant: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated May 24, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms