The big dig: Trampas Canyon Reservoir to serve as South County’s largest water project
On 177 acres situated between San Clemente’s Talega community and Ortega Highway, mountainous earthworks are taking shape. Santa Margarita Water District … is building a 1.6-billion-gallon reservoir. When completed in 2020, Trampas Canyon Reservoir, less than a half-mile north of Talega, will be able to store recycled wastewater collected from as many as five South Orange County treatment plants.