Cashmere STP Facility
Cashmere, WA · Chelan County · Publicly Owned Treatment Works
- Average flow
- 0.39 MGD
- Design flow
- 2.03 MGD
- NPDES permit
- WA0023183
- Administratively continued
- Permit expires
- May 2025
- Population served
- 3,000
- CWNS 2022
Cashmere STP Facility is a publicly owned wastewater treatment works in Cashmere, Chelan County, Washington treating an average of 0.39 million gallons per day against a permitted design capacity of 2.03 MGD, serving about 3,000 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit WA0023183 (administratively continued), which expires in May 2025, with 30 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
- 30
- Effluent violations
- 30
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Cashmere STP Facility, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Cashmere STP Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Washington
Wenatchee · 9 mi away
—
Peshastin · 9 mi away
0.05 MGD
Leavenworth · 11 mi away
—
Entiat · 16 mi away
—
Rock Island · 18 mi away
0.06 MGD
Leavenworth · 24 mi away
—
Quincy · 29 mi away
0.03 MGD
Chelan · 30 mi away
—
Cashmere STP Facility: 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 April 13, 2025.