Sausalito-Marin City Sanitary District
1 East Road, Sausalito, CA 94965 · Marin County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 6 MGD
- NPDES permit
- CA0038067
- Effective
- Permit expires
- December 2028
- Population served
- 21,749
- CWNS 2022
Sausalito-Marin City Sanitary District is a publicly owned wastewater treatment plant in Sausalito, Marin County, California, serving about 21,749 residents. It discharges under NPDES permit CA0038067 (effective), which expires in December 2028, with 8 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in July 2008.
Treatment technology
2 treatment structures and unit processes identified at Sausalito-Marin City Sanitary District.
Available with a free Klarifi account
See the full treatment train at Sausalito-Marin City Sanitary District: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 7
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 Sausalito-Marin City Sanitary District in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- Compliance actions
- $2.5M
- required by EPA orders
- EPA inspections
- 2
- latest Sep 2008
Latest case · Jul 2008
Sausalito Marin City Sanitary District
Administrative order · CWA, NPDES Discharge without a Permit · Final Order Issued · Compliance actions $1M
EPA's description of the case:
“This is an Administrative Order (AO) for compliance pursuant to CWA 309(a) issued to Sausalito-Marin City Sanitary District. The violation involves unpermitted discharges from wastewater collection…”
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Source: EPA ECHO, civil enforcement case 09-2008-1505.
Full case history with a free Klarifi account
Every action against Sausalito-Marin City Sanitary District with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Sausalito-Marin City Sanitary District.
No verified contacts on file yet
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Nearby wastewater treatment plants in California
Tiburon · 4 mi away
0.000000013 MGD
Mill Valley · 5 mi away
—
San Francisco · 8 mi away
72.75 MGD
Oakland · 10 mi away
—
San Francisco · 15 mi away
—
Pinole · 15 mi away
—
Pacifica · 16 mi away
2.59 MGD
Rodeo · 18 mi away
—
Sausalito-Marin City 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 · Biosolids · Filter press · all terms