Underground Piping Associated with Aboveground Oil Storage Tanks
Since June, 24 1991, new installations of underground piping associated with aboveground oil storage tanks (ASTs) must be installed and maintained under the same Rules as piping associated with underground tanks.
After July 1, 1995, it became illegal for an owner to operate aboveground tanks with underground piping not constructed of a non corrosive material approved by the DEP.
Effective August 23, 2006, the Maine Legislature adopted a new law that established new requirements for facilities with aboveground tanks storing motor fuel (gasoline, diesel, biodiesel, aviation gasoline, jet fuel, gasohol or other fuels used in the operation of a vehicle or motor engine) and that are connected to underground piping.
This new law established several important deadlines for owners of aboveground motor fuel facilities to be aware of:
By January 1, 2007, register motor fuel ASTs (For diesel ASTs see deadline #3.) with underground piping;
By July 1, 2007, and annually thereafter, submit inspection reports from a Certified Tank Installer or Certified Tank Inspector of underground piping systems associated with motor fuel ASTs (for diesel ASTs see deadline #4);
By January 1, 2009, register diesel ASTs with underground piping;
By July 1, 2009, and annually thereafter, submit inspection reports from a Certified Tank Installer or Certified Tank Inspector of underground piping systems associated with diesel ASTs; and
By January 1, 2011, retrofit pre-June 24, 1991, underground piping systems at all motor fuel ASTs to meet the DEP’s leak detection standards
Contacts - Who to contact for more information on Underground Piping associated with aboveground motor fuel storage tanks, please contact David McCaskill (207) 287-7056.
Oil Discharge Notification Guidance - These interim guidelines is to provide guidance on the Department’s expectations for reporting to the Department evidence of petroleum contamination based on soil and ground water sampling and analytical results conducted in the course of environmental site assessments at underground and above ground oil storage facilities. (pdf format)
Contact: George J. Seel (207) 287-2651
Chapter 692 - Siting of Oil Storage Facilities - (Effective April 24, 2010)
March 2011 - Removal of Flexible Underground Product Piping Policy (pdf format)
Underground Piping Associated with AST Motor Fuel Tanks Inspector's Handbook (pdf format)
Site Assessors List (pdf format)
Finance Authority of Maine (FAME) Low Interest Loan Program for Oil Storage Facilities (Off Site)