Lake County is digging deeper into its emergency reserve after the Robin Lane sewer spill. Supervisors approved another 1 million dollars Tuesday, pushing total recovery funding to 1.75 million as costs keep climbing. Officials say expenses for water deliveries, tank installations and filtration systems have already topped 1.2 million dollars, with more bills still coming in. Even with the added funding, about 3.25 million dollars remains in the county’s disaster reserve while help continues for more than 160 affected households.