Hello everyone.Haven't been on here for awhile thought that I would drop in and say Hi'Sounds like there might be some problems with a contractor.The best way to deal with this is to get everything in writing first.If this guy layed out the pond and went by his plans then he is the one that is responsible.The way that alot of contractors get out of repairs is they say that they did the work the way they was told buy the customer and not the way that they wanted.If they ask you what or how you want something done then watch out the corners will be cut and it will be your baby.Always ask whats the right way and make them tell you they're plan and if it sounds good say lets go with your plan.That will give him his dollar back.Try to have someone there to hear what was said.that will help if you end up in court.As for the back of your dam the standard slope is 4'wide to every 1'tall.This will help you keep it maitained. Hope this helps DOC

Doc