Atascadero Creek Lake Fill Pipeline Repair Project

The City of Atascadero is undertaking the Atascadero Creek Lake Fill Pipeline Repair Project to restore a pipeline that transports water from Atascadero Creek to Atascadero Lake during high-flow events. The project involves the replacement and repair of approximately 350 linear feet of degraded, sediment-impacted pipeline starting at the inlet, along with the repair of associated concrete hold-downs and maintenance of existing intake structures and diversion boxes. To achieve this, the project requires approximately 96 cubic yards of excavation to remove the old pipe and the removal of riparian vegetation adjacent to and above the pipeline. The new pipeline will be of equivalent capacity and installed in the same alignment as the existing one to ensure full functionality. Located at 9930 Carmelita Ave in San Luis Obispo County, the project has undergone environmental review in compliance with the California Environmental Quality Act. A Mitigated Negative Declaration was approved on August 18, 2026, following a public review period from July 2 to August 1, 2026. The environmental process addressed potential impacts on air quality, biological resources, and cultural resources, with mitigation measures implemented to reduce these impacts to less than significant levels. Key coordinating agencies include the U.S. Army Corps of Engineers and the California Department of Fish and Wildlife. Project administration is managed by the City of Atascadero, with primary points of contact including Associate Planner Erick Gomez, Planning Manager Kelly Gleason, and Associate Civil Engineer Joe Murphy.