"Conservation Of Drainage, Dams, Ditches On The Facilities Of Cascade Soła: Part 1 Conservation Of Drainage, Dams, Landslides And Tresna Tank Tank Ditches Part 2 - Conservation Of The Drainage Of The Village Porąbka Czaniec Reservoir Hi 3 - Maintenance Of Earthwater Dams, The Bottom Of The Dam, Emergency Transflage And Channel Of The Channel Of The Czaniec Reservoir "