How can this be? Ladera Ranch CA drinking water source is Robert B. Diemer Water Treatment Plant in Yorba Linda CA, It sits on top of 2 old Shell oil & gas wells that were plugged and capped in 1954. One of the Shell oil & gas wells was drilled down to 4,199 feet and the other one was drilled down to 5,001 feet. Ladera Ranch, California gets its drinking water primarily from imported supplies provided by the Metropolitan Water District of Southern California (MWD) via the State Water Project's California Aqueduct and the Colorado River Aqueduct, alongside local sources managed by the Santa Margarita Water District. Robert B. Diemer Water Treatment Plant operated by the Metropolitan Water District of Southern California was built between 1961 to 1963 over old oil wells, WTH?. Metropolitan Water District treatment facility is at 3972 Valley View Ave Yorba Linda CA.  OK, here you go LA Times and CA-Post reporters , your show prep and detailed investigative research into the...