The Nacimiento Water Project Pipeline South is the southern portion of the transmission line that will deliver raw water from Lake Nacimiento to the Project’s participants. Its alignment commences at the Rocky Canyon Tank and Pump Station in south Atascadero on Rocky Canyon Road, continues south through Santa Margarita and the Cuesta Tunnel (at the top of Cuesta Grade), and ends just north of San Luis Obispo at the San Luis Obispo Turnout on Stenner Creek Road. The Pipeline South consists of three main parts:

Pipeline. Approximately 12 miles of 18-inch to 12-inch diameter ductile iron pipeline will be installed as the southern portion of the Project’s pipeline. Pipeline work includes trenching, pipeline installation, and backfilling; sheeting, shoring and bracing; performance of trenchless construction at road and highway crossings; application of pipeline linings and coatings; installation of appurtenances and corrosion monitoring stations; pavement restoration; traffic and pedestrian control; protection and location of existing utilities; hazardous materials removal and disposal; and site restoration.

Turnouts. One turnout will be constructed to deliver water from the Project’s main pipeline to the City of San Luis Obispo and CSA-10A. The San Luis Obispo Turnout is located on the north side of San Luis Obispo off of Stenner Creek Road and consists of approximately 305-feet of 12-inch diameter welded steel pipeline and a turnout facility. Turnout facility work includes installation of flow meters, isolation valves, flow control valves, and electrical and instrumentation and control systems.

Fiber Optic Cable. A fiber optic communication line will be installed along the entire pipeline alignment, including through existing conduit in the Cuesta Tunnel, for the purposes of Project operations and control. Work will include installation of pull boxes and installation and testing of fiber optic conduit and cable.