When the Town of Niverville realized they had a problem with the ponds in Fifth Avenue Estates, they knew they needed to fix it. The issues are myriad and include shoreline erosion, an abundance of goose fecal matter, and the overgrowth of water plant life such as duckweed. However, the most concerning problem is the growth of blue-green algae, which can be hazardous both to people and small animals.