The Federal Order on drainage of polluted sites (OSites) governs the procedures for cleaning up affected areas.

Environment 02

BTEE’s specialists in geology, hydrogeology, chemistry, physical chemistry, pedology and so on are experts in the various aspects of this problem and can assist you in any way required.


Supported if necessary by outside experts we can carry out historical and technical investigations leading to a detailed report and a renovation plan. BTEE can also manage the tendering process and project management.