Contracting Of The Ditch Lining And Civil Works Of The Penelles, Castellserá And Juneda Ponds For The Project "Improvement Of Water Efficiency And Automation In The General Community Of Regants Dels Canals D'Urgell (Lleida)", Within The Framework Of The Recovery, Transformation And Resilience Plan Financed By The European Union - Nextgenerationeu (Prtr)