Many neighborhoods have the water retention issue as a way of controlling flooding or water accumulation in an area. Many of the community ponds are treated with chemicals - hence the GREEN or BLUE color that will cut down on bugs. We used to live in an apartment complex that had a pond, but there were more bugs that came from the woods and standing water than the pond.
If the pond is in a rural area, then it is for aesthetics or fishing, or perhaps even a livestock watering hole. Where there is water, there will be bugs, in Ohio, so beware, unless you treat it, but then you ruin the water supply with contamination from chemicals.