1 Thou shall not assume isotropy, homogeneity, or uniform gradient without field evidence.
2 Thou shall not assume wells or streams to penetrate fully or flow systems to be two dimensional.
3 Thou shall not use regional data to make site-specific judgements.
4 Thou shall not use color graphics to enhance lousy science.
5 Thou shall not employ geostatistics to obfuscate poor interpretations or weak conclusions.
6 Thou shall not rely on stochastic methods to disguise insufficient field data.
7 Thou shall not place geochemical interpretations above hydraulic interpretations.
8 Thou shall never regard geophysics as the truth.
9 Thou shall never use a contouring program to make a water-table map.
10 Thou shall never use more than three significant digits.