Santa Venetia's WORKMAP  ( they cut off a horizontal strip between map 3 and 4.) Although nowhere on the town itself is there ZONE text
 ( other than the meaningless "0.2PCT" next to certain levees -- pretty dumb when they are not even CERTIFIED)
It seems safe to assume we are AE (EL10)  . Which suggests, based on the conversation, that yes, above 10 feet Insurance is $1,600, below $10,700 !