From a distance, the Harpeth Valley UtilitiesDistrict’s (HVUD) wastewater treatment plant could be mistaken for a farm. That’s because it is a farm.
Nestled on 400 acres along Tennessee’s Cumberland River, the plant produces more than 4 million pounds of Class B biosolids, which the operators apply to the land by injection. They prepare the ground and buy and plant the seed to produce a crop for a local farmer.
The 10 mgd activated sludge-extended aeration facility is run by a team of eight who do everything from farming to NPDES permit compliance testing and plant operation and maintenance. It’s a demanding






































