Carpinteria Sanitary District
5300 6th Street, Carpinteria, CA 93013 · Santa Barbara County · Publicly Owned Treatment Works
- Average flow
- 1.39 MGD
- Design flow
- 2.5 MGD
- NPDES permit
- CA0047364
- Expired
- Permit expires
- September 2022
- Population served
- 15,241
- CWNS 2022
Carpinteria Sanitary District is a publicly owned wastewater treatment plant in Carpinteria, Santa Barbara County, California treating an average of 1.39 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 15,241 residents. It discharges under NPDES permit CA0047364 (expired), which expires in September 2022, with 1 recorded violation in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in September 2002.
Treatment technology
Treatment structures and unit processes at Carpinteria Sanitary District.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Carpinteria Sanitary District in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- EPA inspections
- 0
- none on record
Latest case · Sep 2002
Carpinteria Sanitary District
Administrative order · CWA, NPDES Discharge without a Permit · Unilateral Administrative Order Without Adjudication
EPA's description of the case:
“'This is an AO pursuant to CWA Section 301a issued to Carpinteria Sanitary District. The violation involves overflows from the sanitary sewer. The Order directs the Sanitary District to improve…”
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Source: EPA ECHO, civil enforcement case 09-2002-0143.
Full case history with a free Klarifi account
Every action against Carpinteria Sanitary District with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Carpinteria Sanitary District.
No verified contacts on file yet
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Nearby wastewater treatment plants in California
Summerland · 5 mi away
0.08 MGD
Santa Barbara · 8 mi away
0.98 MGD
Ventura · 13 mi away
1.98 MGD
Goleta · 18 mi away
4.28 MGD
Ventura · 18 mi away
4.94 MGD
Camarillo · 32 mi away
3.96 MGD
Camarillo · 36 mi away
—
Simi Valley · 41 mi away
7.12 MGD
Carpinteria Sanitary District: 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 May 10, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms