The newly expanded Huntington Water Pollution Control Plant is a combined rotating biological contractor/step-feed activated sludge plant. The plant is capable of treating an annual average flow of 7.5 million gallons per day and a peak wet weather flow of 15 million gallons per day. The expanded and upgraded facility will serve the City of Huntington for 20 years at the expected population growth rate. The plant improvements were completed at a construction cost of approximately $8 million. The project was funded entirely by a local revenue bond issue.