California follows EPA's lead in certifying underground storage tanks

Christopher Goodfellow - 2 September 2010

California's State Water Resources Control Board has followed the EPA's lead in deeming underground Diesel Exhaust Fluid tanks as non-hazardous.

A statement from the body said: "The State Water Body has determined that DEF, with an approximate urea solution of 30 percent, is not a hazardous substance as defined in Section 25281 of the Health and Safety Code and, accordingly, USTs [underground storage tanks] storing DEF are not regulated under Chapter 6.7 of the Health and Safety Code."