1) Quality private fishery
2) To enhance land value
3) Ornamental landscaping
4) Provide affordable and convenient water frontage real estate
6) To attract wildlife for viewing and/or preservation
16) To provide escape, peace, and relaxation (therapeutic or otherwise)
17) Reduce local insect population (fish eat bugs)
18) Erosion control
19) To create and enjoy the sounds of moving water (ie; waterfall)
22) To provide safe, fresh fish as food
24) A fun place to gather with family and friends

And the original reason .. one which is not listed ..

To take advantage of a a natural water source on my property


No such thing as a problem .. just opportunities