Hi Duga,  I noticed that you tagged a number of ponds as water=basin. example here: (https://www.openstreetmap.org/way/1046342439/history/2)
My understanding is that the basin tag is typically used in the context of water management. from the wikipage: ..."Usually these features are made for man made water courses e.g. storm water, water treatment."

Is there a reason you chose this tag instead of water=pond?  Many of these are just small ponds that landowners have created or modified. Often they are spring fed.  Generally they are for recreation, more than water management. 

Would you object if I modified these tags?