Cleaning And Unblocking Ditches And Channels Draining Mine Water Into Rivers, Including: Part I: Cleaning The Ditch Into The Mleczna River Draining Mine Water From The Boże Dary Pumping Station, Part Ii: Cleaning The Orzeł Biały Ditch Draining Mine Water From The Bolko Pumping Station, Part Iii: Cleaning A Fragment Of The Open Mine Water Collector Along With Road Culverts (Approximately 630 M)