Hill Canyon WWTP
Camarillo, CA · Ventura County · Publicly Owned Treatment Works
- Average flow
- 8.09 MGD
- Design flow
- 14 MGD
- NPDES permit
- CA0056294
- Effective
- Permit expires
- July 2031
- Population served
- 117,000
- CWNS 2022
Hill Canyon WWTP is a publicly owned wastewater treatment works in Camarillo, Ventura County, California treating an average of 8.09 million gallons per day against a permitted design capacity of 14 MGD, serving about 117,000 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit CA0056294 (effective), which expires in July 2031, with 3 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
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
8 verified contacts for Hill Canyon WWTP, with validated emails and direct phone numbers.
Unlock 8 verified contacts (5 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Hill Canyon WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Camarillo · 5 mi away
3.57 MGD
Simi Valley · 8 mi away
6.5 MGD
Camarillo · 8 mi away
—
Oxnard · 16 mi away
16.6 MGD
Malibu · 17 mi away
—
Ventura · 19 mi away
—
Ventura · 23 mi away
1.56 MGD
Valencia · 24 mi away
14.1 MGD
Hill Canyon 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 27, 2025.