Denison’s Paw Paw Wastewater Treatement Plant will soon be undergoing a series of improvements.

The Denison City Council approved a $1.4 million contract with Felix Construction for work on the Paw Paw Wastewater Treatment Plant that will see the replacement of the plant’s UV disinfection and clarifier equipment.

These improvements come as the equipment, which was installed between 1988 and 1994, has reached the end of its lifespan.

“This is equipment that is about 25 years old,” Atteberry said. “We can’t even buy replacements for it anymore. It’s that out of date.”

Atteberry said the UV disinfection equipment uses light to remove bacteria and viruses from wastewater while the clarifier is used to remove liquids from solids, Atteberry said. With the changes to the equipment, Atteberry said the speed of the process may increase, but overall the technology has not changed.

“This is a proactive approach to replace this equipment rather than wait until we have a major failure,” Atteberry said.

When the project was put to bid, it received three bids, with Felix Construction submitting the lowest bid. By comparison, the high bid was $1.55 million. Atteberry attributed the close bids to the nature of the project, where the price of the equipment makes up the majority of the cost.

The project is a part of $20 million of improvements to the city’s water system that will take place over five years through 2020. This year, the city is also expected to start work on water line improvements along FM 1417 and a repainting project for the Grayson College ground storage tank. An elevated tank near North Texas Regional Airport is also slated to see improvements this year, Atteberry said.

The improvements to the wastewater plant will be financed through the city’s water and sewer bond fund and split between the 2017 and 2018 fiscal years. The contract calls for the project to be completed within 300 days with work expected to start in mid-March.