drainage [Noun] + underground [Adjective]

Strength Strength Dispersion
A:
10
CHISQ:
977.26
AWT:
15,195,892
TTEST:
3.13
G2:
81.69
FAWT:
3.58
MI:
6.64
LOGLOG:
22.06
JD:
0.54
MI3:
13.28
DICE:
0.98
RANGE: