here i found this that may interest you.
You obviously need to change your values accordingly but it'll give you an insight to what you need to do.
It water splashing in a glass. He added a spped daemon and set a value of 3 to reduce the splashing.
Hope this helps. Keep me posted.
BTW, i forgot in that picture it looks more like a lake as apposed to a river? Is that right? Also, what are you using it for? is it to be used with anything interacting with it or just for show?
Solution : ....If its just for show and you have maya unlimited, you could use an ocean and just tone the waves right down. If not, go the way you are going and make sure all objects are exported as an SD file. An SD export ensures all frames are exported out of maya too.
those who succeed are only the failures that never gave up.