0815415c____Code_of_Federal_Regulations__Requirement
[Deadline] January 1, 2007 unless your State obtains an extension as described in 144.87(c) in which case your deadline is January 2008. [Requirement] 
(vi) If your well is in a State that has not delineated other sensitive ground water areas by January 1, 2004 and you are outside of an area with a completed assessment you must close the well or obtain a permit regardless of your location
eCFR — Code of Federal Regulations
Requirement