WL_CHNG, ST400, WUSE, LAT/LONG
CLUSTER 0
High WL_CHNG (neg)
High WUSE
CLUSTER 1
Low WL_CHNG (neg)
Medium WUSE
Low ST400
CLUSTER 2
Low WL_CHNG (pos)
Low WUSE
CLUSTER 3
High WUSE
Low WL_CHNG (neg)
High ST400
CLUSTER 4
KGS