Table 4: Kriging log-normalized data cross validation statistics for arsenic.

Depth (cm)ModelMPEASESRMSPE

0–30Gaussian0.00020.23641.0280
30–60Spherical0.02330.35071.0300
60–90Spherical0.00140.28540.9491
90–120Exponential0.00180.34921.0240
120–150Exponential0.00170.35661.0180