Report on 17M gallon sewage spill blames LA County Public Health for failing to quickly notify public Los Angeles County Supervisors address Hyperion sewage leak The failure to more quickly notify the public of a 17-million-gallon sewage spill that ultimately closed beaches from El Segundo to the southern end of Playa del Rey was largely the fault of a division within the Department of Public Health, according to a report discussed by county officials. LOS ANGELES - Multiple failures were cited in a newly-released report about the 17-million-gallon sewage spill that ultimately closed beaches from El Segundo to the southern end of Playa del Rey.