Zone 7 Water Agency, the Tri-Valley’s water manager and wholesaler, is considering a large pipeline to exchange water between the Chain of Lakes area and the South Bay Aqueduct to prepare for the harsher water landscape expected in the coming decades. Zone 7 staff, at a special April 1 Board of Directors workshop, shared a proposal for a 7-mile-long, 42-inch-wide pipeline that would run from Lake I and Cope Lake, located south of Stoneridge Drive between the cities of Pleasanton and Livermore, to the South Bay Aqueduct at the Del Valle Water Treatment Plant in south Livermore. A new pump station at the lakes would convey water uphill from the lakes to the aqueduct, while gravity could carry water in the opposite direction. 

Other pipeline news:

• Bay City News (Berkeley, Calif.): Cal Water to lay more than 1.6 miles of pipe in Sunnyvale, Los Altos to improve reliability