Leaking underground storage tanks
The problems associated with leaking underground storage tanks are discussed. An estimated 10-30% of the 3.5 million or more underground tanks now used to store petroleum products and other liquids may be leaking their contents to the surrounding environment. The EPA is initiating a national field survey of tanks used for the storing of engine fuels. The first phase of the survey will cover a representative sample of 1050 facilities and approximately 2800 tanks. EPA will analyze the questionnaires and then select a sub-sample of about 500 tanks to examine leakage problems in more detail. In the absence of specific groundwater protection legislation or regulation, EPA is planning to use the Toxic Substances Control Act to regulate underground tanks.