Escondido City Of
1521 South Hale Avenue, Escondido, CA 92029 · San Diego County · Publicly Owned Treatment Works
- Average flow
- 10.14 MGD
- Design flow
- 18 MGD
- NPDES permit
- CA0107981
- Expired
- Permit expires
- May 2023
- Population served
- 180,000
- CWNS 2022
Escondido City Of is a publicly owned wastewater treatment plant in Escondido, San Diego County, California treating an average of 10.14 million gallons per day against a permitted design capacity of 18 MGD, serving about 180,000 residents. It discharges under NPDES permit CA0107981 (expired), which expires in May 2023, with 2 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Escondido City Of.
Available with a free Klarifi account
See the full treatment train at Escondido City Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
12 verified contacts for Escondido City Of, with validated emails and direct phone numbers.
Unlock 12 verified contacts (9 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Escondido City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Cardiff · 11 mi away
1.2 MGD
Carlsbad · 12 mi away
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Oceanside · 16 mi away
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Santee · 17 mi away
—
Fallbrook · 20 mi away
1.37 MGD
San Diego · 30 mi away
140.8 MGD
San Diego · 39 mi away
28.5 MGD
Dana Point · 41 mi away
12.64 MGD
Escondido City Of: 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 January 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms