LAKE ELSINORE – The California State Water Resource Control Board issued new drinking water guidelines recently, lowering the trigger levels for responses by local water systems to 10 ppt for perfluorooctanoic acid and 40 ppt for perfluorooctanesulfonic acid. The new guidelines, known as response levels, are among the lowest in the nation. One part-per-trillion is the equivalent of one drop of water in the Rose Bowl Stadium.
Though sampling indicated levels of PFOS and PFOA in a couple of local sources of water, Elsinore Valley Municipal Water District is currently not producing drinking water from impacted sources. EVMWD is evaluating options to meet these new regulations including importing water to offset local supplies and in the long term, considering construction of treatment s