A $490-million plant will clean effluent to state standards, then inject it into the groundwater basin for further filtration. By Dan Weikel, Los Angeles Times Staff Writer January 2, 2008 As a hedge against water shortages and population growth, Orange County has begun operating the world's largest, most modern reclamation plant -- a facility that can turn 70 million gallons of treated sewage into drinking water every day. http://www.latimes.com/news/local/valley/la-me-reclaim2jan02,1,5316714.s...