An Application of Delaware's Risk-Based Corrective Action Program: To a Site with MTBE Contamination

MTBE is a gasoline additive addressed in Delaware's Risk-Based Corrective Action Program. Due to inconclusive toxicological data, MTBE is difficult to address in a risk-based fashion pertaining to actual cancer risk. MTBE action levels in Delaware's Risk-Based Corrective Action Program (DERBCAP) are based on the low end of the aesthetic range of the contaminant (10 ppb), not a health-based number. Addressing MTBE in this manner can make it very …