Underground Piping Associated with Aboveground Oil Storage Tanks
Introduction

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 Butch Bowie at (207) 287-4804 or email; Butch Bowie.
Laws and Rules - Regarding Underground Piping at AST facilities
An Act To Prevent Motor Fuel Spills from Aboveground Storage Tanks That Have Underground Piping
Chapter 691- Rules for Underground Oil Storage Facilities
Underground Piping Forms, Lists, Fact Sheets and Publications
Forms
AST Change of Ownership Notification Form (MS Word format) (pdf format)
Underground Piping Associated with AST Motor Fuel Tanks Annual Inspection Form (pdf format) - Underground Piping Associated with AST Motor Fuel Tanks Inspector's Handbook (pdf format)
Underground Piping Registration Form (MS Word format) ( pdf format )
Cover Letter to Facility Owner/Operators Regarding Registration of Underground Piping (MS Word format) ( pdf format )
Notice of Intent to Abandon (Remove) an Underground Oil Storage Facility Form (pdf format)
Lists
Maine Certified Underground Storage Tank Installers and Inspectors (pdf format)
Updated January 2008 - Site Assessors List (pdf format)
Fact Sheets
June 2008 - Fact Sheet - Siting Aboveground Oil Storage Tanks and Other Facilities that Pose a Significant Risk to Drinking Water (pdf format)
Related Programs
Board of Underground Tank Installers
Finance Authority of Maine (FAME) Low Interest Loan Program for Oil Storage Facilities (Off Site)
Underground Oil Storage Tanks
SPCC Program
The Ground Water Oil Cleanp-Up Fund
Updated June, 2008