Dallas WWTP
Rickreall, OR · Polk County · Publicly Owned Treatment Works
- Average flow
- 1.42 MGD
- Design flow
- 2 MGD
- NPDES permit
- OR0020737
- Effective
- Permit expires
- October 2030
- Population served
- 16,555
- CWNS 2022
Dallas WWTP is a publicly owned wastewater treatment works in Rickreall, Polk County, Oregon treating an average of 1.42 million gallons per day against a permitted design capacity of 2 MGD, serving about 16,555 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit OR0020737 (effective), which expires in October 2030, with 13 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Aerated lagoons
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Uncovered lagoons
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Carrousels / oxidation ditches
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Compliance snapshot (last 3 years)
- Total violations
- 13
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Dallas WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Dallas WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Oregon
Monmouth · 5 mi away
0.79 MGD
Independence · 5 mi away
0.47 MGD
Falls City · 9 mi away
0.009 MGD
Salem · 12 mi away
24.62 MGD
Sheridan · 13 mi away
—
Amity · 14 mi away
—
Willamina · 15 mi away
0.1 MGD
Brooks · 16 mi away
0.05 MGD
Dallas WWTP: 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 March 16, 2025.