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Public works presents $100 million sanitary sewer master plan and next steps for rates and impact fees
Summary
Public Works presented an updated sanitary sewer master plan showing a CIP of roughly $100 million across build‑out, describing flow monitoring, model calibration, and that the wastewater treatment plant peak capacity is about 27 million gallons/day; council discussed capacity, funding and prioritization.
David King of the Public Works Engineering Department presented an update to the city’s sanitary sewer master plan. King said staff conducted winter flow monitoring to capture both dry and wet weather conditions, calibrated a sewer model and produced build‑out wastewater flow projections used to develop a capital improvement program estimated at roughly $100 million over the planning horizon.
King explained that typical dry‑weather flows average 5–8 million gallons per day, while peak wet‑weather flow measured in the study approached 25,000,025 gallons per day; the wastewater treatment plant is rated to about 27,000,000 gallons per day and has contingency ponds to store excess during storms. Most deficiencies identified are future‑build‑out related and would be paid by development through impact fees; one small existing deficiency could be addressed with sewer rate funds.
Staff outlined outreach and CEQA‑required public review and said the next steps are incorporation of identified projects into a nexus study, development of sewer‑rate planning and prioritization via a flow trigger analysis. Council members asked about peak capacity, contingency handling and the proportion of the city not currently connected to sewer (roughly one quarter), and staff answered those questions.
No action was taken beyond acceptance of the presentation; staff will integrate projects into fee studies and rate planning.
