DEEP: Reports on the Use of Methyl Tertiary Butyl Ether

Reports on the Use of Methyl Tertiary Butyl Ether (MTBE) As A Gasoline Additive 

In February 2000, Connecticut released a report recommending reducing and capping the use of MTBE as a gasoline additive and charging the fuel industry to find a suitable alternative.  In the report to the Connecticut General Assembly on the use of MTBE, the DEP outlined five recommendations for dealing with MTBE as a gasoline additive.  The Executive Summary contains the five recommendations.  Recommendations similar to the ones offered by the DEP have also been proposed in reports issued by the Blue Ribbon Panel appointed by the EPA to study MTBE and in a resolution by the Northeast States for Coordinated Air Use Management (NESCAUM), of which Connecticut is a member. 

MTBE has been used as a gasoline additive at low levels since 1979.  The Background section of the report describes what MTBE is and why it is used in gasoline in Connecticut.  MTBE levels in gasoline increased in 1995 when gasoline was reformulated to reduce air pollution in areas, such as Connecticut, that do not meet federal air quality standards.  Section 3 details the beneficial Air Quality Effects of MTBE, and the impacts of its removal from gasoline. 

Section 3 discusses the Water Quality Impacts of MTBE, which have only recently been recognized, and details sources of contamination and mitigation of contamination.

Sections 5 and 6 explore Alternative Fuel Additives and Air Pollution Control Options.

Report to the Joint Standing Committees on Public Health and the Environment Connecticut General Assembly -  "2000 Report - Use of Methyl Tertiary Butyl Ether (MTBE) As a Gasoline Additive" (PDF, 517K) 

2004 Report (PDF, 305K)
2003 Report (PDF, 1725K)
2002 Report (PDF,  417K)
2001 Report (PDF,  278K) 

MTBE Information

Content Last Updated on February 23, 2004