If nothing else, sue Government for letting their water trespass on your property. Bill them for the ponds you had to build just to keep their water from eroding your land. Bill them for the job of collecting the water that you did so that they had water to use on forest fires, etc.. Bill them for water storage. Bill them for not coming and removing the water from your land in a timely manner. Sue them for abandonment of the water all these years. Bill them for future damage the future water will do to your land. Make them take out a "Reclamation of Land" insurance policy like the mining companies do, to reclaim the land that they mess up by their mining. Make each item you can think of to be a separate law suit. Find friends and neighbors in a similar position, and get them to bill or sue Government, as well. You get the picture.