Oxyloma elegans is a hygrophilous land snail from the family Succineidae. Oxyloma elegans inhabits water margins on sunny places with cattail Typha sp. or with other plants. This looks like a great locality for Oxyloma elegans, because it it sunny, the habitat with water margin is large and it has suitable plants:
There are visible many Oxyloma elegans snails among the remnants of dead plants. More than 15 snails are visible on the same place on the photo. All of them are Oxyloma elegans. The sandpit is quite new and there were no freshwater snails yet and there were no other wetland snail species. Other succineids such as Succinea putris did not invaded the locality yet and Oxyloma elegans occupied all suitable places there.
View of the foot in the lab:
Horsák M., Juřičková L. & Picka J. 2013: Měkkýši České a Slovenské republiky. Molluscs of the Czech and Slovak Republics. Kabourek, Zlín, 264 pp. (in Czech and English). page 65.