Half Moon Bay sewer customers could see rates rise after city loses fight over pipeline

Half Moon Bay residents may face increased sewer rates after a court ruling placed 62% of a $25 million pipeline replacement cost on the city. Santa Clara County Superior Court Judge Julia Alloggiamento ruled in favor of Granada Community Services District and Montara Water and Sanitary District, determining that Half Moon Bay is primarily responsible for the intertie pipeline, which transports wastewater to the Sewer Authority Mid-Coastside (SAM) treatment plant. City officials expressed disappointment and are considering an appeal, as they believe the ruling could discourage neighboring agencies from making cost-efficient infrastructure decisions. City Manager Matthew Chidester emphasized that the pipeline system does not serve Half Moon Bay ratepayers, raising concerns about fairness. He proposed revising the joint powers authority model or consolidating the agencies into a special district, which could offer equitable rates and financing benefits.

Multiple grand juries have previously recommended consolidation under a special district. If the ruling stands, the city will move forward with rate increases to cover the pipeline replacement costs. This situation highlights ongoing challenges in managing regional wastewater infrastructure and funding.