210.52 (5) Exception to (5)
I inspected an installation that had receptacles below a countertop. The countertop exceeded 6" (bar type)and the receptacles are more than 12" below the countertop. There is a receptacle that does comply at the end of the peninsular.
I contacted the DCA and was told as long as (1) receptacle complies then the other receptacles are acceptable.
May you put receptacles under a countertop that extends more than 6"?
Capital,
While I will admit, I have not read the other replies on here because to quite honest with you when I explain to NEC to someone I do not afford myself with being tainted by others individuals interpretations until I have expressed mine fully originally.
Since I will only answer your questions as presented, I will leave it to others to dish up deeper insight beyond the original question.
Section 210.52 (C)(2) directs us to have "at least" one receptacle outlet to serve each peninsular countertop with a long dimension of 24 in. or greater and a short dimension of 12 in. or greater. Sounds like you have that and the one receptacle at the end of the peninsular is appropriate ( assuming of course it is below the countertop, installed and permitted by 210.52(C)(5) Ex. 2) since you did not specify any break in the countertop space creating separate spaces.
So the question is " may you put receptacles under a countertop that extends more than 6"? and the answer in my opinion is Yes, they will not(and cannot) meet the requirement to serve the countertop space (but you already have that covered) as governed by Section 210.52(C) but nothing would prohibit them from being installed under 210.52(A). The argument becomes "is" this a "fixed room divider" and if so then the walls spacing requirements may be an issue for your layout. At the end of the day you have receptacles dedicated to serving the countertop space governed by 210.52(C) and the general wall spacing requirements governed by 210.52(A).
You local inspector can be your best friend on this one, just ask them what they consider the peninsular to be? If the peninsular is actually separating two rooms like Kitchen from Dining Area or Kitchen from Living Room Area then I would consider it wall space....but then again I am not your AHJ.
One final thought....in most jurisdictions I have worked with if the peninsular is an actual cabinet with a countertop and not a framed component (2" x 4" Construction) then we would not consider it a " wall space" at all and thus only the peninsular receptacle would be required. Just some things to think on and others can disagree on that logic but it's how we ruled (90.4).