• Please do not pay for fees unless requested by a Sewer District representative.
  • Please be sure to have a copy of the Sewer Inspection Permit (SIP) signed by a Sewer District representative before performing any work. Work done without a SIP will result in penalty fees.  Please note that paying for these fees does not mean the SIP has been issued. Please contact us at DPW_sewers@smcgov.org or call us at (650) 363-4100 for status on SIP.
  • Please note credit card payments for San Mateo County Sewer Services items are assessed a 2.35% convenience fee with a $1.95 minimum. There is a $0.95 convenience fee for bank accounts. The convenience fees are charged per transaction by a third party vendor. County of San Mateo does not retain any portion of this fee.
  • If you need clarification or have any questions, please contact us at DPW_sewers@smcgov.org or call us at (650) 363-4100.

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