Durham Waste Handling
Tigard, OR · Washington County · Publicly Owned Treatment Works
- Average flow
- 18.4 MGD
- Design flow
- —
- NPDES permit
- ORL028118
- Effective
- Permit expires
- December 2030
- Population served
- 53,093
- CWNS 2022
Durham Waste Handling is a publicly owned wastewater treatment plant in Tigard, Washington County, Oregon treating an average of 18.4 million gallons per day, serving about 53,093 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit ORL028118 (effective), which expires in December 2030, with 6 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 6
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Tigard
Tigard's capital improvement plan lists 25 water, sewer and wastewater line items worth $89M starting 2025–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Tigard →
| Project | Budget | Years |
|---|---|---|
| Pipeline Renewal and Replacement Program (PRRP) | $32,445,000 | 2025–2030 |
| East Pressure Zone Consolidation Project (Formerly Bull ain Water Pipeline) | $16,970,000 | 2025–2028 |
| Water Meter Modernization | $15,182,000 | 2025–2029 |
| Pump Station 8 Rebuild | $5,445,000 | 2026–2028 |
| Reservoir 19 - Phase 1 | $4,800,000 | 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
3 verified contacts for Durham Waste Handling, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Durham Waste Handling, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Oregon
Lake Oswego · 5 mi away
3.51 MGD
Milwaukie · 6 mi away
1.74 MGD
Canby · 9 mi away
0.99 MGD
Aurora · 12 mi away
0.08 MGD
Dundee · 15 mi away
—
Hubbard · 15 mi away
0.17 MGD
Portland · 18 mi away
8.99 MGD
Boring · 19 mi away
0.01 MGD
Durham Waste Handling: 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 September 11, 2026; facility record last updated August 10, 2026.