Underground septic tanks

This entry only applies to septic tanks, not any other form of underground tanks. Septic tanks must be emptied before disposal.

Note, if you need to dispose of an underground storage tank that previously held a hazardous material (e.g., Used Motor Oil or gasoline), please contact the Certified Unified Program Agencies (CUPA) for your area regarding permits, forms, and fees. Visit PermitSonoma Underground Storage Tanks (UST) for more information.

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Location pin Central Disposal Site

500 Mecham Rd
Petaluma, CA 94952

NotesDrop-off and fee: pumped septic tanks and related material, triple rinsed. No raw sewage waste (liquid or solids).

For current rates, see Fee Schedule

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