Should i valuebet this river ?

[sdv]

villian 52\14, 100 hands. Very passive, likes check-call modes, but only with "good" hands. He doesn't looks like stupid idiot, just unexpereinced player with a some basic leaks.

Poker Stars - No Limit Hold'em Cash Game - $2/$4 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $439.35
BB: $1,002.65
UTG: $473.00
Hero (MP): $557.65
CO: $356.40
BTN: $323.00

Preflop: Hero is dealt 7[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/spade.gif[/img] (6 Players)
UTG folds, <font color="red">Hero raises to $16.00</font>, 3 folds, BB calls $12.00

Flop: ($34) 7[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">BB bets $24.00</font>, <font color="red">Hero raises to $72.00</font>, BB calls $48.00

Turn: ($178) 8[img]/images/graemlins/heart.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $150.00</font>, BB calls $150.00

River: ($478) A[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, Hero ??

Could he check flush - YES ? i see such guys before. What hand could call my push? AT, and probably T8.
So, i think the best line against such donk is 100-120 and fold to a push OR just check.