Harrisburg Lagoon Treatment Plant
23914 Peoria Rd, Harrisburg, OR 97446 · Linn County · Publicly Owned Treatment Works
- Average flow
- 0.8 MGD
- Design flow
- 0.49 MGD
- NPDES permit
- OR0033260
- Effective
- Permit expires
- August 2027
- Population served
- 3,695
- CWNS 2022
Harrisburg Lagoon Treatment Plant is a publicly owned wastewater treatment works in Harrisburg, Linn County, Oregon treating an average of 0.8 million gallons per day against a permitted design capacity of 0.49 MGD, serving about 3,695 residents. It discharges under NPDES permit OR0033260 (effective), which expires in August 2027, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Harrisburg Lagoon Treatment Plant.
Available with a free Klarifi account
See the full treatment train at Harrisburg Lagoon Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Harrisburg Lagoon Treatment Plant.
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Nearby wastewater treatment plants in Oregon
Junction City · 5 mi away
1.19 MGD
Monroe · 6 mi away
0.17 MGD
Halsey · 7 mi away
0.16 MGD
Monroe · 9 mi away
0.0095 MGD
Coburg · 11 mi away
0.18 MGD
Brownsville · 12 mi away
0.3 MGD
Corvallis · 18 mi away
0.75 MGD
Tangent · 18 mi away
0.15 MGD
Harrisburg Lagoon 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 August 9, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms