Short answer is yes, I am relatively certain that you must still contact the airport manager prior to flying within 5 miles of the airport. Though they're somewhat ambiguous, the FAA still has the "you must call" terminology in places on their website and they reference flying by "community standards". Always better to be safe than sorry so I say when in doubt, call. The airport manager may tell you there is no need but then you'll know for sure.
Keep in mind that some Class E airspace starts at 700 or 1200 AGL. Areas like this is where Class G underlies the Class E. Hence you can fl