The Schultheis-Weiher is now classified as a bathing lake according to the EU Bathing Water Directive. The city of Offenbach has created the appropriate infrastructure for this. The lake water is checked regularly, and appropriate precautions have been taken for bathing in the summer months.
In 1929, the Schultheis company began to mine sand and gravel here in the bow of the Main. These raw materials were in demand, especially in the years of reconstruction after the Second World War. But because the excavators encountered clay at a depth of just three meters, dismantling only lasted until the 1960s. Some of the dredged areas were backfilled with excavated earth, building rubble and waste.
In 1975 this was officially prohibited. By the end of the 1970s, a lake of over 20 hectares was created between Bürgel and Rumpenheim, which not only attracted bathers, but also numerous species of birds. In the vernacular it was quickly called Schultheis-Weiher. The former owner, the Fechenheim chemical plant Cassella, ceded the site to the surrounding area. At the beginning of the 1980s, together with the city of Offenbach, he initiated the development of a recreational, nature and landscape protection area.