Harrah WWTP
8761 Branch Rd, Harrah, WA 98933 · Yakima County · Publicly Owned Treatment Works
- Average flow
- 0.03 MGD
- Design flow
- 0.06 MGD
- NPDES permit
- WA0022705
- Effective
- Permit expires
- May 2030
- Population served
- —
- CWNS 2022
Harrah WWTP is a publicly owned wastewater treatment works in Harrah, Yakima County, Washington treating an average of 0.03 million gallons per day against a permitted design capacity of 0.06 MGD. It discharges under NPDES permit WA0022705 (effective), which expires in May 2030, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Harrah WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 2
- 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 Harrah WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Washington
Toppenish · 11 mi away
0.09 MGD
Zillah · 12 mi away
0.08 MGD
Yakima · 13 mi away
8.67 MGD
Toppenish · 13 mi away
0.66 MGD
Zillah · 14 mi away
0.2 MGD
Granger · 18 mi away
0.17 MGD
Naches · 23 mi away
0.54 MGD
Sunnyside · 27 mi away
1.34 MGD
Harrah 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 October 26, 2026; facility record last updated October 10, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms