Works On The Regular Maintenance And Functioning Of Water Facilities And Performing Work In The Field Of Water Management In The Area Of ​​The Water Unit "North Bačka - Subotica", "Krivaja - Bačka Topola", "West Bačka - Sombor; "Bačka - Vrbas And "Srednja Bačka - Bečej" And The Performance Of Rehabilitation Works And Emergency Interventions On Protective And Regulatory Facilities In The "Danube" Water Area