Subsoil Moisture

I did a septic tank investigation yesterday.  It is a busy time to slow down from sampling cropland, but it also gives me the opportunity to look at subsoil moisture.  The site I looked at was grassy so water infiltration should be good, although the slope will not allow for standing water.  Subsoil moisture was good on the site I looked at.  It was a little surprising that there was no water table considering how wet it has been.