Three flow scenarios were developed to assess the capacity of the existing sewer system. Each scenario allows for an increase in wastewater flow generated from the Wine Country area over the preceding scenario, with the third representing complete build-out. For Flow Scenario 1, only Rancho California Road and Highway 79 sewers have capacity deficiencies, primarily located in the upstream smaller diameter sewers. By Flow Scenario 3 (build-out flows), Nicolas Road, Rancho California Road, and Highway 79 all have significant base flow capacity deficiencies.
For more information about wastewater generation and sewer capacity related to Wine Country please refer to the Wine Country Infrastructure Study.